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  • 1
    Signatur: AWI A3-20-93434-2
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 2
    Materialart: Schriftenreihen ausleihbar
    Seiten: 218 Seiten , Illustrationen
    Serie: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,2
    Sprache: Deutsch
    Anmerkung: Zugleich: Dissertation, Freie Unversität Berlin, [ca. 1963] , INHALTSVERZEICHNIS PROBLEMSTELLUNG UND ZIELSETZUNG 1. BEMERKUNGEN ZUM BEOBACHTUNGSGELÄNDE UND ZUM BEOBACHTUNGSMATERIAL 1.1 Das Beobachtungsgelände 1.2 Das Beobachtungsmaterial 2. HOMOGENITÄTSBETRACHTUNGEN 2.1 Temperatur 2.2 Niederschlag 2.3 Wind 2.4 Sonnenschein und Bewölkung 3. TEMPERATURVERHÄLTNISSE 3.1 Monats- und Jahreswerte 3.2 Tageswerte 3.3 Pentadenwerte 3.4 Häufigkeitsbetrachtungen 3.5 Interdiurne Veränderlichkeit 3.6 Der tägliche Gang 3.7 Vorkommen bestimmter Schwellenwerte 3.71 Frost- und Eistage 3.72 Sommer- und Tropentage 4. DER WASSERGEHALT DER LUFT 4.1 Monats- und Jahreswerte 4.2 Tageswerte 4.3 Häufigkeitsbetrachtungen 4.4 Interdiurne Veränderlichkeit 4.5 Der tägliche Gang 5. BEWÖLKUNGSVERHÄLTNISSE 5.1 Monats- und Jahreswerte 5.2 Tageswerte 5.3 Häufigkeitsbetrachtungen 5.4 Der tägliche Gang 5.5 Heitere und trübe Tage 5.6 Nebel 6. SONNENSCHEIN 6.1 Monats- und Jahreswerte 6.2 Tageswerte 6.3 Der tägliche Gang 7. NIEDERSCHLAGSVERHÄLTNISSE 7.1 Monats- und Jahreswerte 7.2 Niederschlagsbereitschaft 7.3 Tageswerte 7.4 Der tägliche Gang 7.5 Häufigkeitsbetrachtungen 7.6 Niederschlags- und Trockenperioden 7.7 Niederschlag und Wind· 7.8 Schneeverhältnisse 7.81 Schneefall und Schneedecke 7.82 Schneehöhe 7.9 Gewitter 8. WINDVERHÄLTNISSE 8.1 Windrichtung 8.2 Windgeschwindigkeit 8.21 Der jährliche Gang 8.22 Häufigkeitsbetrachtungen 8.23 Sturmtage und Windstillen 8.24 Der tägliche Gang 9.ZUSAMMENFASSUNG VERZEICHNIS DER TEXTTABELLEN VERZEICHNIS DER ABBILDUNGEN LITERATURVERZEICHNIS TABELLENANHANG
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  • 2
    Signatur: AWI A3-20-93434
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 1
    Materialart: Schriftenreihen ausleihbar
    Seiten: 121 Seiten , Illustrationen
    Serie: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,1
    Sprache: Deutsch
    Anmerkung: Zugleich: Dissertation, Freie Unversität Berlin, [ca. 1963] , INHALTSVERZEICHNIS PROBLEMSTELLUNG UND ZIELSETZUNG 1. BEMERKUNGEN ZUM BEOBACHTUNGSGELÄNDE UND ZUM BEOBACHTUNGSMATERIAL 1.1 Das Beobachtungsgelände 1.2 Das Beobachtungsmaterial 2. HOMOGENITÄTSBETRACHTUNGEN 2.1 Temperatur 2.2 Niederschlag 2.3 Wind 2.4 Sonnenschein und Bewölkung 3. TEMPERATURVERHÄLTNISSE 3.1 Monats- und Jahreswerte 3.2 Tageswerte 3.3 Pentadenwerte 3.4 Häufigkeitsbetrachtungen 3.5 Interdiurne Veränderlichkeit 3.6 Der tägliche Gang 3.7 Vorkommen bestimmter Schwellenwerte 3.71 Frost- und Eistage 3.72 Sommer- und Tropentage 4. DER WASSERGEHALT DER LUFT 4.1 Monats- und Jahreswerte 4.2 Tageswerte 4.3 Häufigkeitsbetrachtungen 4.4 Interdiurne Veränderlichkeit 4.5 Der tägliche Gang 5. BEWÖLKUNGSVERHÄLTNISSE 5.1 Monats- und Jahreswerte 5.2 Tageswerte 5.3 Häufigkeitsbetrachtungen 5.4 Der tägliche Gang 5.5 Heitere und trübe Tage 5.6 Nebel 6. SONNENSCHEIN 6.1 Monats- und Jahreswerte 6.2 Tageswerte 6.3 Der tägliche Gang 7. NIEDERSCHLAGSVERHÄLTNISSE 7.1 Monats- und Jahreswerte 7.2 Niederschlagsbereitschaft 7.3 Tageswerte 7.4 Der tägliche Gang 7.5 Häufigkeitsbetrachtungen 7.6 Niederschlags- und Trockenperioden 7.7 Niederschlag und Wind· 7.8 Schneeverhältnisse 7.81 Schneefall und Schneedecke 7.82 Schneehöhe 7.9 Gewitter 8. WINDVERHÄLTNISSE 8.1 Windrichtung 8.2 Windgeschwindigkeit 8.21 Der jährliche Gang 8.22 Häufigkeitsbetrachtungen 8.23 Sturmtage und Windstillen 8.24 Der tägliche Gang 9.ZUSAMMENFASSUNG VERZEICHNIS DER TEXTTABELLEN VERZEICHNIS DER ABBILDUNGEN LITERATURVERZEICHNIS TABELLENANHANG
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  • 3
    Signatur: AWI G6-19-92375
    In: Berichte / Christian-Albrechts-Universität zu Kiel, Institut für Geowissenschaften, Nr. 9
    Materialart: Monographie ausleihbar
    Seiten: 278 Seiten , Illustrationen
    ISSN: 0175-9302
    Serie: Berichte / Christian-Albrechts-Universität zu Kiel, Institut für Geowissenschaften 9
    Sprache: Deutsch
    Anmerkung: Zugleich: Dissertation, Christian-Albrechts-Universität zu Kiel, 1999 , INHALTSVERZEICHNIS 1. Einleitung 1.1 Kenntnisstand und offene Fragen 1.2 Fragestellung und Ziele dieser Arbeit 2. Umweltbedingungen in den Arbeitsgebieten 2.1 Hydrographie, Eisverhältnisse und NAO 2.2 Zur Variation von Wassertiefe und Breite der Dänemarkstraße und zur Vereisung Islands während des letzten Glazials 3. Methoden 3.1 Auswahl der Kernstationen 3.2 Probennahme und Analysen (Übersicht) 3.3 Zur Rekonstruktion von Paläobedingungen im Oberflächenwasser Zur Aussage stabiler Isotopenverhältnisse in planktischen Foraminiferen Zur Messung stabiler Isotopenverhältnisse Zur Massenspektrometrie Zur Rekonstruktion von Oberflächentemperaturen Alkane und Alkohole als Maß für Staubeintrag Eistranspmtiertes Material und vulkanische Aschen 3.4 Zur Rekonstruktion von Paläobedingungen im Zwischen-/ Tiefenwasser Häufigkeit von Cibicides- und anderen benthischen Arten (inkl. Taxonomie) Stabile Isotopenverhältnisse in benthischen Foraminiferen 3.5 AMS 14C-Datierungen Probenreinigung 3. 6 Hauptelementanalysen von vulkanischen Asche-Leithorizonten 3. 7 Geomagnetische Meßgrößen und magnetische Suszeptibiltät 3.8 Techniken zur Spektralanalyse 4. Methodische Ergebnisse 4.1 Zum Einfluß der Probenreinigung auf δ18O-/ δ13C-Werte 4.2 Probleme bei der langfristigen Reproduzierbarkeit von δ18O-Zeitreihen 4.3 Einfluß der Korngröße und Artendefinition planktischer Foraminiferen auf SST-Rekonstruktionen in hohen Breiten 4.4 Vergleich der stabilen Isotopenwerte von Cibicides lobatulus und Cibicidoides wuellerstorfi 5. Stratigraphische Grundlagen und Tiefenprofile der Klimasignale 5.1 Stratigraphische Korrelation zwischen parallel-gekernten GKG- und SL-/KL-Profilen 5.2 Flanktische δ18O-/ δ13C-Kurven, 14C-Alter und biostratigraphische Fixpunkte Westliches Islandbecken Kern PS2644 Kern PS2646 Kern PS2647 Kern 23351 Vøring-Plateau Kern 23071 Kern 23074 5.3 Benthische δ18O-/ δ13C-Werte in Kern PS2644 5.4 Siliziklastische Sedimentkomponenten: Eistransportiertes Material Westliches Islandbecken Kern PS2644 Kern PS2646 Kern PS2647 Vøring-Plateau Kern 23071 Kern 23074 5.5 Vulkanische Glasscherben in Kern PS2644: Wind- und Eiseintrag 5.6 Geochemie und Alter einzelner Tephralagen als Leithorizonte Westliches Islandbecken Kern PS2644 Kern PS2646 Kern PS2647 Vøring-Plateau Kern 23071 Kern 23074 5.7 Magnetische Suszeptibilität in den Kernen PS2644, PS2646 und PS2647 Kern PS2644 Kern PS2646 und PS2647 5.8 Geomagnetische Feldintensität und Richtungsänderungen in Kern PS2644 5.9 Variation von Planktonfauna und -flora Westliches Islandbecken: Kern PS2644 Kern PS2646 und PS2647 Vøring-Plateau: Kern 23071 und 23074 5.10 Benthische Foraminiferen in Kern PS2644 6. Entwicklung von Temperatur und Salzgehalt nördlich der Dänemark-Straße 6.1 Variation der Oberflächentemperatur nach Planktonforaminiferen 6.2 Variation der Oberflächentemperatur nach Uk37 6.3 Variation der Oberflächensalinität 7. Die Feinstratigraphie von Kern PS2644 als Basis für eine Eichung der 14C-Altersskala 22 - 55 ka 7.1 Korrelation zwischen den Klimasignalen in Kern PS2644 und der GISP2-Klimakurve zum Kalibrieren der 14C-Alter und Erstellen eines Altersmodells Tephrachronologische Marker Korrelationsparameter und -regeln Sonderfälle/ Probleme bei der Korrelation 7.2 Alters-stratigraphische Korrelation der Klimakurven von Kern 23071 und 23074 7.3 Variation der Altersanomalien zwischen 20 und 55 14C-ka 7.4 Variabilität des planktischen 14C-Reservoiralters in Schmelzwasserbeeinflußten Seegebieten Variation der planktischen 14C-Alter unmittelbar an der Basis von Heinrich-Ereignis 4 Unterschiede zwischen planktischen und benthischen 14C-Altern in der westlichen Islandsee. Zur Erklärung der inversen Altersdifferenzen 7.5 Differenz zwischen 14C- und Kalenderalter: Zeitliche Variation unter Einfluß des Erdmagnetfeldes - Modell und Befund 7.6 Sedimentationsraten der Kerne 23071, 23074 und PS2644 nach dem GISP2-Altersmodell Vøring-Plateau: Kerne 23071 und 23074 Südwest-Islandsee: Kern PS2644 8. Klimaoszillationen im Europäischen Nordmeer in der Zeit und Frequenzdomäne 8.1 "Der Einzelzyklus" in den Klimakurven von Kern PS2644 8.2 Zur Veränderlichkeit der Warm- und Kaltextreme sowie Zyklenlänge Besonderheiten in der Zyklenlänge Variation der Kalt-(Stadiale) Variation der Interstadiale 8.3 Periodizitäten der Klimasignale im Frequenzband der D.-Oe.-Zyklen. Der D.-Oe.-Zyklus von 1470 J., seine Multiplen und harmonischen Schwingungen Weitere Frequenzen: 1000-1150 Jahre- und 490- 510 Jahre-Zyklizitäten Höhere Frequenzen im Bereich von Jahrhunderten und Dekaden 8.4 Phasenbeziehungen und (örtliche) Steuemngsmechanismen der Dansgaard-Oeschger-Zyklen 9. Schlußfolgerungen Danksagung Literaturverzeichnis Anhang
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  • 4
    Signatur: AWI G3-19-92384
    Beschreibung / Inhaltsverzeichnis: Widespread landscape changes are presently observed in the Arctic and are most likely to accelerate in the future, in particular in permafrost regions which are sensitive to climate warming. To assess current and future developments, it is crucial to understand past environmental dynamics in these landscapes. Causes and interactions of environmental variability can hardly be resolved by instrumental records covering modern time scales. However, long-term environmental variability is recorded in paleoenvironmental archives. Lake sediments are important archives that allow reconstruction of local limnogeological processes as well as past environmental changes driven directly or indirectly by climate dynamics. This study aims at reconstructing Late Quaternary permafrost and thermokarst dynamics in central-eastern Beringia, the terrestrial land mass connecting Eurasia and North America during glacial sea-level low stands. In order to investigate development, processes and influence of thermokarst dynamics, several sediment cores from extant lakes and drained lake basins were analyzed to answer the following research questions: 1. When did permafrost degradation and thermokarst lake development take place and what were enhancing and inhibiting environmental factors? 2. What are the dominant processes during thermokarst lake development and how are they reflected in proxy records? 3. How did, and still do, thermokarst dynamics contribute to the inventory and properties of organic matter in sediments and the carbon cycle? Methods applied in this study are based upon a multi-proxy approach combining sedimentological, geochemical, geochronological, and micropaleontological analyses, as well as analyses of stable isotopes and hydrochemistry of pore-water and ice. Modern field observations of water quality and basin morphometrics complete the environmental investigations. The investigated sediment cores reveal permafrost degradation and thermokarst dynamics on different time scales. The analysis of a sediment core from GG basin on the northern Seward Peninsula (Alaska) shows prevalent terrestrial accumulation of yedoma throughout the Early to Mid Wisconsin with intermediate wet conditions at around 44.5 to 41.5 ka BP. This first wetland development was terminated by the accumulation of a 1-meter-thick airfall tephra most likely originating from the South Killeak Maar eruption at 42 ka BP. A depositional hiatus between 22.5 and 0.23 ka BP may indicate thermokarst lake formation in the surrounding of the site which forms a yedoma upland till today. The thermokarst lake forming GG basin initiated 230 ± 30 cal a BP and drained in Spring 2005 AD. Four years after drainage the lake talik was still unfrozen below 268 cm depth. A permafrost core from Mama Rhonda basin on the northern Seward Peninsula preserved a full lacustrine record including several lake phases. The first lake generation developed at 11.8 cal ka BP during the Lateglacial-Early Holocene transition; its old basin (Grandma Rhonda) is still partially preserved at the southern margin of the study basin. Around 9.0 cal ka BP a shallow and more dynamic thermokarst lake developed with actively eroding shorelines and potentially intermediate shallow water or wetland phases (Mama Rhonda). Mama Rhonda lake drainage at 1.1 cal ka BP was followed by gradual accumulation of terrestrial peat and top-down refreezing of the lake talik. A significant lower organic carbon content was measured in Grandma Rhonda deposits (mean TOC of 2.5 wt%) than in Mama Rhonda deposits (mean TOC of 7.9 wt%) highlighting the impact of thermokarst dynamics on biogeochemical cycling in different lake generations by thawing and mobilization of organic carbon into the lake system. Proximal and distal sediment cores from Peatball Lake on the Arctic Coastal Plain of Alaska revealed young thermokarst dynamics since about 1,400 years along a depositional gradient based on reconstructions from shoreline expansion rates and absolute dating results. After its initiation as a remnant pond of a previous drained lake basin, a rapidly deepening lake with increasing oxygenation of the water column is evident from laminated sediments, and higher Fe/Ti and Fe/S ratios in the sediment. The sediment record archived characterizing shifts in depositional regimes and sediment sources from upland deposits and re-deposited sediments from drained thaw lake basins depending on the gradually changing shoreline configuration. These changes are evident from alternating organic inputs into the lake system which highlights the potential for thermokarst lakes to recycle old carbon from degrading permafrost deposits of its catchment. The lake sediment record from Herschel Island in the Yukon (Canada) covers the full Holocene period. After its initiation as a thermokarst lake at 11.7 cal ka BP and intense thermokarst activity until 10.0 cal ka BP, the steady sedimentation was interrupted by a depositional hiatus at 1.6 cal ka BP which likely resulted from lake drainage or allochthonous slumping due to collapsing shore lines. The specific setting of the lake on a push moraine composed of marine deposits is reflected in the sedimentary record. Freshening of the maturing lake is indicated by decreasing electrical conductivity in pore-water. Alternation of marine to freshwater ostracods and foraminifera confirms decreasing salinity as well but also reflects episodical re-deposition of allochthonous marine sediments. Based on permafrost and lacustrine sediment records, this thesis shows examples of the Late Quaternary evolution of typical Arctic permafrost landscapes in central-eastern Beringia and the complex interaction of local disturbance processes, regional environmental dynamics and global climate patterns. This study confirms that thermokarst lakes are important agents of organic matter recycling in complex and continuously changing landscapes.
    Materialart: Dissertationen
    Seiten: XII, 128 Seiten , Illustrationen , 1 DVD
    Sprache: Englisch
    Anmerkung: Enthält 5 Publikationen: 1) Mid Wisconsin to Holocene permafrost and landscape dynamics based on a drained lake basin core from the northern Seward Peninsula, northwest Alaska / Josefine Lenz, Guido Grosse, Benjamin M. Jones [und 5 weitere] 2) Evidence of multiple thermokarst lake generations from an 11,800-year old permafrost core on the northern Seward Peninsula, Alaska / Josefine Lenz, Sebastian Wetterich, Benjamin M. Jones [und 3 weitere] 3) Impacts of shore expansion and catchment characteristics on lacustrine thermokarst records in permafrost lowlands, Alaska Arctic Coastal Plain / Josefine Lenz, Sebastian Wetterich, Benjamin M. Jones [und 5 weitere] 4) Periglacial landscape dynamics in the western Canadian Arctic: Results from a thermokarst lake record on a push moraine (Herschel Island, Yukon) / Josefine Lenz, Michael Fritz, Lutz Schirrmeister [und 4 weitere] 5) Regional environmental change versus local signal preservation in Holocene thermokarst lake sediments: A case study from Herschel Island, Yukon (Canada) / Michael Fritz, Ingmar Unkel, Josefine Lenz [und 6 weitere] , Table of contents Abstract Zusammenfassung Abbreviations and nomenclature 1 Thesis organization 1.1 Overview of chapters 1.2 Author contribution 2 Introduction 2.1 Scientific background 2.1.1 Arctic environments and permafrost in the study region of Beringia 2.1.2 Permafrost degradation and its global feedbacks 2.1.3 Thermokarst lakes and basins as paleoenvironmental archives 2.2 Aims and approaches 3 Mid Wisconsin to Holocene permafrost and landscape dynamics based on a drained lake basin core from the northern Seward Peninsula, northwest Alaska 3.1 Abstract 3.2 Introduction 3.3 Study area 3.4 Material and methods 3.5 Results 3.5.1 Core stratigraphy 3.5.2 Cryostratigraphy 3.5.3 Grain size distribution 3.5.4 Magnetic susceptibility 3.5.5 Biogeochemical characteristics 3.5.6 Tephra 3.5.7 Palaeoecology 3.5.8 Geochronology 3.6 Discussion 3.7 Conclusions 4 Evidence of multiple thermokarst lake generations from an 11,800-year old permafrost core on the northern Seward Peninsula, Alaska 4.1 Abstract 4.2 Introduction 4.3 Study area 4.4 Material and methods 4.5 Results 4.5.1 Geochronology 4.5.2 Cryolithological description 4.5.3 Geochemical results 4.5.4 Bioindicators 4.5.5 Characteristics of intra-sedimentary ice and comparison with modern waters 4.6 Discussion 4.6.1 Thermokarst lake dynamics 4.6.2 Regional lake dynamics and global environmental change 4.6.3 Carbon cycling 4.7 Conclusions 5 Impacts of shore expansion and catchment characteristics on lacustrine thermokarst records in permafrost lowlands, Alaska Arctic Coastal Plain 5.1 Abstract 5.2 Introduction 5.3 Study area 5.4 Material and methods 5.5 Results 5.5.1 Sedimentological results of near-shore core P1 5.5.2 Sedimentological and palynological results of lake center-cores P2 (and P3) 5.5.3 Lake age estimation 5.6 Discussion 5.6.1 Thermokarst lake development 5.6.2 Impact of catchment genesis and morphology on the lake sediment record 5.6.3 Carbon degradation 5.7 Conclusions 6 Synthesis 6.1 Study sites in central-eastern Beringia: Similarities and differences 6.2 Permafrost degradation and thermokarst development in central-eastern Beringia 6.2.1 Timing of thermokarst development 6.2.2 Environmental factors supporting and inhibiting thermokarst 6.3 Processes of thermokarst lake development and their imprint in proxy records 6.4 Contribution of thermokarst dynamics to the carbon cycle 6.5 Potentials/limitations of thermokarst lake archives and outlook Bibliography Appendix I: Periglacial landscape dynamics in the western Canadian Arctic: Results from a thermokarst lake record on a push moraine (Herschel Island, Yukon) I-1 Abstract I-2 Introduction I-3 Study area I-4 Material and methods I-5 Results I-5.1 Core lithology I-5.2 Radiography I-5.3 Magnetic susceptibility and water content I-5.4 Grain size distribution I-5.5 Biogeochemical characteristics I-5.6 Geochronology I-6 Discussion I-6.1 Evolution of Lake Herschel I-6.2 Paleoenvironmental implications of the Lake Herschel record I-7 Conclusions Appendix II: Regional environmental change versus local signal preservation in Holocene thermokarst lake sediments: A case study from Herschel Island, Yukon (Canada) II-1 Abstract II-2 Introduction and study area II-3 Material and methods II-3.1 Sediment core II-3.2 Radiocarbon dating and age modelling II-3.3 Pore-water chemistry II-3.4 X-ray fluorescence (XRF) scanning II-3.5 Micropaleontology II-4 Results II-4.1 Chronostratigraphy: The revised age model II-4.2 XRF chemistry II-4.3 Pore-water chemistry II-4.4 Calcareous microfossils II-4.5 Pollen II-5 Discussion II-5.1 Sedimentation history of Lake Herschel II-5.2 Limnological, sedimentary and geochemical properties predefine the habitat I-5.3 Autochthonous versus allochthonous deposition of calcareous microfossils II-5.4 Regional pollen-based reconstruction of vegetation and climate II-6 Conclusions Acknowledgements
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  • 5
    Signatur: AWI G3-19-92460
    Beschreibung / Inhaltsverzeichnis: The Yukon Coast in Canada is an ice-rich permafrost coast and highly sensitive to changing environmental conditions. Retrogressive thaw slumps are a common thermoerosion feature along this coast, and develop through the thawing of exposed ice-rich permafrost on slopes and removal of accumulating debris. They contribute large amounts of sediment, including organic carbon and nitrogen, to the nearshore zone. The objective of this study was to 1) identify the climatic and geomorphological drivers of sediment-meltwater release, 2) quantify the amount of released meltwater, sediment, organic carbon and nitrogen, and 3) project the evolution of sediment-meltwater release of retrogressive thaw slumps in a changing future climate. The analysis is based on data collected over 18 days in July 2013 and 18 days in August 2012. A cut-throat flume was set up in the main sediment-meltwater channel of the largest retrogressive thaw slump on Herschel Island. In addition, two weather stations, one on top of the undisturbed tundra and one on the…
    Materialart: Monographie ausleihbar
    Seiten: 163 Seiten , Illustrationen, Diagramme
    Sprache: Englisch
    Anmerkung: Table of Contents Abstract Kurzfassung Abbreviations and nomenclature 1. Introduction 2. Scientific Background 2.1. Permafrost 2.2.Retrogressive Thaw Slumps 2.3. Inputs of Freshwater, Sediment and Carbon into the Canadian Beaufort Sea 3. Study Area 3.1. Regional Setting: Yukon Coast and Herschel Island 3.2. Retrogressive Thaw Slumps 4. Material and Methods 4.1. Field Work 4.1.1. Terrain Photography 4.1.2. Differential Global Positioning System (DGPS) 4.1.3. Light Detection And Ranging (LiDAR) and Digital Elevation Model (DEM) 4.1.4. Micrometeorology 4.1.5. Discharge Measurement 4.1.6. Multiple Regression-Statistical Relationships between Micrometeorological Variables and Discharge 4.1.7. Sampling 4.2. Laboratory Analyses 4.2.1. Sedimentological Analyses 4.2.2. Hydrochemical Analyses 4.3. Fluxes of Sediment and (In-) Organic Matter 5. Results 5.1. Field Work 5.1.1. Terrain Photography 5.1.2. Differential Global Positioning System (DGPS) 5.1.3. Light Detecting And Ranging (LiDAR) and Digital Elevation Model (DEM) 5.1.4. Micrometeorology 5.1.5. Discharge 5.1.6. Multiple Regression - Statistical Relationships between Micrometeorology and Discharge 5.2. Laboratory Analyses 5.2.1. Sedimentological Analyses 5.2.2. Hydrochemical Analyses 5.3. Fluxes of Sediment-meltwater 6. Discussion 6.1. Microclimatological and Geomorphological Factors Controlling Discharge 6.1.1. Diurnal Variations 6.1.2. Seasonal Variations 6.2. Contribution of Retrogressive Thaw Slumps to the Sediment Budget of the Yukon Coast 6.2.1. Origin of Outflow Material 6.2.2. Slump D in the Regional Context 6.2.3. Seasonal Sediment Budget Compilation for Slump D 6.2.4. Retrogressive Thaw Slump Occurrence along the Yukon Coast 6.2.5. Input to the Beaufort Sea 6.3. Projected Climatic Change and its Impact on Retrogressive Thaw Slump Outflow 6.4. Uncertainties and Limitations 6.5. Future Research 7. Conclusion 8. Appendix 8.1. Field Work 8.1.1. Slump D's northern headwall profile 8.1.2. Collinson Head slump 8.1.3. Herschel Island West Coast slump 8.1.4. Roland Bay slump 8.1.5. Kay Point slump 8.2. Laboratory Work 8.2.1. Volumetric Ice Content 8.2.2. Grain Size 8.3. Evolution of Slump D 8.3.1. Geo Eye satellite of Slump D 8.3.2. Aerial Oblique Photography of Slump D 8.3.3. LiDAR of Slump D 8.3.4. Time Lapse Photography of Slump D's Headwall 9. References 10. Financial and technical support 11. Acknowledgement - Danksagung
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  • 6
    Signatur: AWI A8-20-93986
    Materialart: Dissertationen
    Seiten: VI, 129 Seiten , Diagramme
    Sprache: Deutsch
    Anmerkung: Inhaltsverzeichnis Kurzfassung Abstract 1 EINFÜHRUNG 2 GRUNDLAGEN 2.1 Allgemeine Zirkulation 2.2 Barokline Instabiltät 2.3 Horizontale und vertikale Wellenausbreitung 2.4 Die Rolle der Arktis im Klimasystem 2.5 Einfluss des klimatischen Wandels in der Arktis auf die mittleren Breiten 2.6 Atmosphärisches Energiespektrum und Skalenwechselwirkung 3 DATEN UND METHODEN 3.1 Verwendete Reanalyse- und Modelldaten 3.1.1 ERA-Interim 3.1.2 AFES 3.1.3 Aufteilung der verwendeten Daten in Zeiträume mit hoher und niedriger Meereisbedeckung 3.2 Methoden 3.2.1 Instabilitätsanalyse für einen zonalgemittelten Grundzustand 3.2.2 Identifikation bevorzugter großskaliger Zirkulationsmuster 3.2.3 Energie- und Enstrophiespektren 3.2.4 Statistische Testverfahren 4 ERGEBNISSE 4.1 Instabilitätsanalyse für einen zonalgemittelten Grundzustand . 4.1.1 Klimatologie ERA-Interim und AFES 4.1.2 Sensititvitätsstudie 4.2 Identifikation bevorzugter großskaliger Zirkulationsmuster 4.2.1 September 4.2.2 Oktober 4.2.3 November 4.2.4 Dezember 4.2.5 Januar 4.2.6 Februar 4.2.7 Zugehörige synoptisch-skalige Aktivität und 2m-Temperatur 4.3 Kinetische Energiespektren und nichtlineare Wechselwirkungen 4.3.1 Kinetische Energiespektren 4.3.2 Enstrophiespektren 4.3.3 Nichtlineare Energiewechselwirkungen, Energieflüsse und Enstrophieflüsse 5 ZUSAMMENFASSUNG UND AUSBLICK Tabellenverzeichnis Abbildungsverzeichnis Variablen und Symbole Literaturverzeichnis Danksagung Anhang A.1 Hough-Funktionen und vertikale Strukturfunktionen A.2 Zugeordnete Legendre-Polynome und Kugelflächenfunktionen Eidesstattliche Erklärung
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  • 7
    Monographie ausleihbar
    Monographie ausleihbar
    Bonn : Rheinwerk Verlag GmbH
    Signatur: AWI S4-16-90097
    Materialart: Monographie ausleihbar
    Seiten: 467 Seiten , 1 CD-ROM , 24.5 cm
    Ausgabe: 3., aktualisierte und erweiterte Auflage (2. Auflage im Rheinwerk Verlag)
    ISBN: 9783836237789
    Serie: Rheinwerk Computing
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 8
    Dissertationen
    Dissertationen
    Köln : DLR, Deutsches Zentrum für Luft- und Raumfahrt
    Dazugehörige Bände
    Signatur: AWI A11-16-90009
    In: Forschungsbericht / Deutsches Zentrum für Luft- und Raumfahrt ; 2016-01, 2016-01
    Beschreibung / Inhaltsverzeichnis: Recent climate model simulations indicated that sulfate (SO4) formed from ship emissions may be one of the major contributors to the negative anthropogenic aerosol radiative forcing. Due to increasingly stringent regulations on the maximum sulfur content of ship fuels this contribution is expected to decrease strongly in the future. Possibly, nitrate (NO3) formation will compensate for part of the reduction, but measurements indicate that it may be crucial to include coarse mode particle interactions with condensable trace gases in order to quantify this effect. However, none of the aerosol (sub)models previously used for such assessments accounted for the coarse mode particle effects. This provided the motivation to extend one of those submodels, namely MADE, in the present work. The new submodel, MADE3, is based on the second generation of MADE, called MADE-in. It includes nine lognormal modes to represent three size ranges with three types of aerosol particles each. The associated increase in complexity w.r.t. to MADE and MADE-in required a complete revision of the code and careful reexamination of the underlying physical assumptions, as only the fine modes had been considered in the gas–particle interactions in the predecessor submodels. The main new features of MADE3 are the ability of coarse mode particles to take up condensing vapors and to coagulate with fine mode particles, and the gas–particle partitioning of chlorine, which is mainly contained in sea spray (SS) particles. In order to test the algorithms used in the new submodel it was run in a box model setup and the results were compared to those obtained in an analogous setup with the much more detailed, particle-resolved aerosol model PartMC-MOSAIC. The comparison was performed for an idealized marine boundary layer test case and showed improved performance of MADE3 over MADE in the representation of coarse mode particles and total aerosol composition. Subsequently, MADE3 was implemented into the atmospheric chemistry general circulation model EMAC. Due to the new mode structure this required extensive adaptations to other submodels, specifically to the one used for cloud and precipitation processing of aerosol particles. EMAC does not track interstitial aerosol particles separately from those immersed in cloud droplets, ice crystals, or precipitation. Hence, a sophisticated scheme was devised and implemented for the assignment of the in-cloud or in-precipitation aerosol to one of four possible modes, instead of just one possible mode in the MADE case. The coupled model, EMAC with MADE3, was thoroughly evaluated by comparison of simulation output to station network measurements of near-surface aerosol component mass concentrations, to airborne measurements of vertical aerosol mass mixing ratio and number concentration profiles, to ground-based and airborne measurements of particle size distributions, and to station network and satellite measurements of aerosol optical depth. Satisfactory agreement with the observations was obtained and it was thus shown that MADE3 is ready for application within EMAC. The results from an identically designed simulation with the predecessor submodel MADE led to the conclusion that a fraction of the secondary aerosol species partitions to the coarse modes in MADE3 and is thus removed more quickly from the atmosphere. Furthermore, a new evaluation method was developed, which allows for comparison of model output to size-resolved electron microscopy measurements of particle composition. Both submodels, MADE3 and MADE, were finally used in EMAC simulations of the effect of ship emissions on the atmospheric aerosol. As in previous studies for year 2000 conditions, SO4 was found to be the dominant species in the fine modes in this context. In contrast to SO4, the major fraction of ship emissions-induced near-surface NO3 was found to partition to the coarse modes in the MADE3 simulations. A similar amount of fine mode NO3 as in the present and former MADE simulations was also formed. Hence, fine mode particle growth due to ship emissions was also similar, and was reduced in idealized simulations of a future low-sulfur fuel scenario. Particle volume concentration decreased by about 1 % due to ship emissions in the MADE3 simulations, but not in the MADE simulations. This finding was independent of the fuel sulfur content. In summary, the inclusion of coarse mode particle interactions and the gas–particle partitioning of chlorine could alter prior conclusions on the climate effect of ship emissions-induced aerosol perturbations, mainly due to the differences in NO3 formation. This climate effect will be re-quantified in a follow-up study by coupling the MADE3 aerosol to a two-moment cloud microphysics scheme. Further planned applications of the new submodel include the quantification of climate effects of aerosol perturbations via their influence on ice clouds as well as simulations with boundary conditions specific to measurement campaigns. Results from the latter may lead to further model improvements and can also provide guidance for the interpretation of measurement results.
    Materialart: Dissertationen
    Seiten: xiv, 170 Seiten , 42 Illustrationen und Diagramme
    Ausgabe: Als Manuskript gedruckt
    Serie: Forschungsbericht / DLR, Deutsches Zentrum für Luft- und Raumfahrt 2016-01
    Sprache: Englisch
    Anmerkung: Contents: Abstract. - Kurzfassung. - 1 Introduction. - 1.1 Motivation. - 1.2 Scientific questions. - 1.3 Method. - 2 Background and state of the science. - 2.1 The atmospheric aerosol. - 2.1.1 Relevance. - 2.1.2 Aerosol processes. - 2.1.3 Aerosol properties. - 2.2 The influence of ship emissions. - 2.3 Aerosol modeling. - 2.3.1 Selected results. - 2.3.2 Motivation to expand on previous work. - 2.3.3 The computational approach. - 2.3.4 Existing aerosol microphysics submodels. - 2.3.5 MADE3 as a successor of MADE and MADE-in. - 3 The aerosol submodel MADE3. - 3.1 Aerosol characteristics. - 3.1.1 Modes. - 3.1.2 Species. - 3.1.3 Mathematical representation of aerosol characteristics. - 3.2 Aerosol processes. - 3.2.1 Gas–particle partitioning. - 3.2.2 Condensation of H2SO4 and organic vapors. - 3.2.3 New particle formation. - 3.2.4 Coagulation. - 3.2.5 Renaming. - 3.2.6 Aging of insoluble particles. - 4 Box model tests. - 4.1 Model description: MADE vs. MADE3. - 4.2 Model description: PartMC-MOSAIC. - 4.3 Test case scenario. - 4.4 Results: MADE3 vs. MADE. - 4.4.1 Size distributions. - 4.4.2 Composition. - 4.5 Results: MADE3 vs. PartMC-MOSAIC. - 4.5.1 Size distributions. - 4.5.2 Composition. - 4.6 Summary and conclusions. - 5 MADE3 in the atmospheric chemistry general circulation model EMAC. - 5.1 Basic settings. - 5.2 Emissions. - 5.3 Transport. - 5.4 Gas phase chemistry. - 5.5 Cloud formation. - 5.5.1 Stratiform clouds. - 5.5.2 Convective clouds. - 5.6 Cloud and precipitation processing of the aerosol. - 5.7 Wet deposition. - 5.8 Dry deposition. - 5.9 Sedimentation. - 5.10 Optical properties. - 6 Evaluation of simulated tropospheric aerosol properties. - 6.1 Data comparability. - 6.2 The MADE3 aerosol within EMAC. - 6.2.1 Near-surface mass concentrations. - 6.2.2 Vertical distributions. - 6.2.3 Size distributions. - 6.2.4 Aerosol optical depth. - 6.2.5 Global tropospheric burdens and residence times. - 6.2.6 Summary and conclusions. - 6.3 Comparison to MADE. - 6.4 New features of MADE3. - 7 Effects of oceanic ship emissions on atmospheric aerosol particles. - 7.1 Effects of year 2000 emissions. - 7.1.1 Near-surface concentrations. - 7.1.2 Near-surface size distributions. - 7.1.3 Tropospheric burdens. - 7.2 Effects of an idealized fuel sulfur content reduction. - 7.3 Summary and conclusions. - 8 Summary, conclusions, and outlook. - Appendix. - A.1 Particle evolution in the box model study. - A.2 Gas phase chemical mechanism. - A.3 Liquid phase chemical mechanism. - A.4 Mode assignment of cloud residual aerosol. - A.4.1 Terminology. - A.4.2 Basic assumptions. - A.4.3 Algorithm for residual assignment. - A.5 Year 2000 aerosol in EMAC with MADE3. - A.6 Near-surface mass concentration evaluation. - References. - Acronyms, symbols, and species names. - Acronyms. - Symbols. - Tracers and chemical species. - Danksagung.
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  • 9
    Signatur: AWI S1-16-89841
    Beschreibung / Inhaltsverzeichnis: This book covers the basics of processing and spectral analysis of monovariate discrete-time signals. The approach is practical, the aim being to acquaint the reader with the indications for and drawbacks of the various methods and to highlight possible misuses. The book is rich in original ideas, visualized in new and illuminating ways, and is structured so that parts can be skipped without loss of continuity. Many examples are included, based on synthetic data and real measurements from the fields of physics, biology, medicine, macroeconomics etc., and a complete set of MATLAB exercises requiring no previous experience of programming is provided. Prior advanced mathematical skills are not needed in order to understand the contents: a good command of basic mathematical analysis is sufficient. Where more advanced mathematical tools are necessary, they are included in an Appendix and presented in an easy-to-follow way. With this book, digital signal processing leaves the domain of engineering to address the needs of scientists and scholars in traditionally less quantitative disciplines, now facing increasing amounts of data.
    Materialart: Monographie ausleihbar
    Seiten: xxiv, 900 Seiten , Illustrationen
    ISBN: 978-3-319-25466-1
    Serie: Signals and Communication Technology
    Sprache: Englisch
    Anmerkung: Contents: 1 Introduction. - 1.1 Chapter Summary. - 1.2 The Meaning of the Book’s Title. - 1.3 Historical Background. - 1.4 How to Read This Book. - 1.5 Further Reading. - References. - PART 1 BASIC THEORETICAL CONCEPTS. - 2 Discrete-Time Signals and Systems. - 2.1 Chapter Summary. - 2.2 Basic Definitions and Concepts. - 2.3 Discrete-Time Signals: Sequences. - 2.3.1 Basic Sequence Operations. - 2.3.2 Basic Sequences. - 2.3.3 Deterministic and Random Signals. - 2.4 Linear Time-Invariant (LTI) Systems. - 2.4.1 Impulse Response of an LTI System and Linear Convolution. - 2.4.2 An Example of Linear Convolution. - 2.4.3 Interconnections of LTI Systems. - 2.4.4 Effects of Stability and Causality Constraints on the Impulse Response of an LTI System. - 2.4.5 Finite (FIR) and Infinite (IIR) Impulse Response Systems. - 2.4.6 Linear Constant-Coefficient Difference Equation (LCCDE). - 2.4.7 Examples of LCCDE. - 2.4.8 The Solutions of an LCCDE. - 2.4.9 From the LCCDE to the Impulse Response: Examples. - 2.4.10 Eigenvalues and Eigenfunctions of LTI Systems. - References. - 3 Transforms of Discrete-Time Signals. - 3.1 Chapter Summary. - 3.2 z-Transform. - 3.2.1 Examples of z-Transforms and Special Cases. - 3.2.2 Rational z-Transforms. - 3.2.3 Inverse z-Transform. - 3.2.4 The z-Transform on the Unit Circle. - 3.2.5 Selected z-Transform Properties. - 3.2.6 Transfer Function of an LTI System. - 3.2.7 Output Sequence of an LTI System. - 3.2.8 Zeros and Poles: Forms for Rational Transfer Functions. - 3.2.9 Inverse System. - 3.3 Discrete-Time Fourier Transform (DTFT). - 3.3.1 An Example of DTFT Converging in the Mean-Square Sense. - 3.3.2 Line Spectra. - 3.3.3 Inverse DTFT. - 3.3.4 Selected DTFT Properties. - 3.3.5 The DTFT of a Finite-Length Causal Sequence. - 3.4 Discrete Fourier Series (DFS). - 3.4.1 Selected DFS Properties. - 3.4.2 Sampling in the Frequency Domain and Aliasing in the Time Domain. - 3.5 Discrete Fourier Transform (DFT). - 3.5.1 The Inverse DFT in Terms of the Direct DFT. - 3.5.2 Zero Padding. - 3.5.3 Selected DFT Properties. - 3.5.4 Circular Convolution Versus Linear Convolution. - 3.6 Fast Fourier Transform (FFT). - 3.7 Discrete Trigonometric Expansion. - 3.8 Appendix: Mathematical Foundations of Signal Representation. - 3.8.1 Vector Spaces. - 3.8.2 Inner Product Spaces. - 3.8.3 Bases in Vector Spaces. - 3.8.4 Signal Representation by Orthogonal Bases. - 3.8.5 Signal Representation by Standard Bases. - 3.8.6 Frames and Biorthogonal Bases. - 3.8.7 Summary and Complements. - References. - 4 Sampling of Continuous-Time Signals. - 4.1 Chapter Summary. - 4.2 Sampling Theorem. - 4.3 Reconstruction of a Continuous-Time Signal from Its Samples. - 4.4 Aliasing in the Frequency Domain and Anti-Aliasing Filter. - 4.5 The Uncertainty Principle for the Analog Fourier Transform. - 4.6 Support of a Continuous-Time Signal in the Time and Frequency Domains. - 4.7 Appendix: Analog and Digital Frequency Variables. - References. - 5 Spectral Analysis of Deterministic Discrete-Time Signals. - 5.1 Chapter Summary. - 5.2 Issues in Practical Spectral Analysis. - 5.2.1 The Effect of Windowing. - 5.2.2 The Effect of Spectral Sampling. - 5.3 Classical Windows. - 5.4 The Kaiser Window. - 5.5 Energy and Power Signals and Their Spectral Representations. - 5.6 Correlation of Deterministic Discrete-Time Signals. - 5.6.1 Correlation of Energy Signals. - 5.6.2 Correlation of Power Signals. - 5.6.3 Effect of an LTI System on Correlation Properties of Input and Output Signals. - 5.7 Wiener-Khinchin Theorem. - 5.7.1 Energy Signals and Energy Spectrum. - 5.7.2 Power Signals and Power Spectrum. - References. - PART 2 DIGITAL FILTERS. - 6 Digital Filter Properties and Filtering Implementation. - 6.1 Chapter Summary. - 6.2 Frequency-Selective Filters. - 6.3 Real-Causal-Stable-Rational (RCSR) Filters. - 6.4 Amplitude Response. - 6.5 Phase Response. - 6.5.1 Phase Discontinuities and Zero-Phase Response. - 6.5.2 Linear Phase (LP). - 6.5.3 Generalized Linear Phase (GLP). - 6.5.4 Constraints on GLP Filters. - 6.6 Digital Filtering Implementation. - 6.6.1 Direct Forms. - 6.6.2 Transposed-Direct Forms. - 6.6.3 FIR Direct and Transposed-Direct Forms. - 6.6.4 Direct and Transposed-Direct Forms for LP FIR Filters. - 6.6.5 Cascade and Parallel Forms. - 6.7 Zero-Phase Filtering. - 6.8 An Incorrect Approach to Filtering. - 6.9 Filtering After Downsampling. - 6.9.1 Theory of Downsampling. - 6.9.2 An Example of Filtering After Downsampling. - References. - 7 FIR Filter Design. - 7.1 Chapter Summary. - 7.2 Design Process. - 7.3 Specifications of Digital Filters. - 7.3.1 Constraints on the Magnitude Response. - 7.3.2 Constraints on the Phase Response. - 7.4 Selection of Filter Type: IIR or FIR?. - 7.5 FIR-Filter Design Methods and Approximation Criteria. - 7.6 Properties of GLP FIR Filters. - 7.6.1 Factorization of the Zero-Phase Response. - 7.6.2 Zeros of the Transfer Function. - 7.6.3 Another Form of the Adjustable Term. - 7.7 Equiripple FIR Filter Approximations: Minimax Design. - 7.8 Predicting the Minimum Filter Order. - 7.9 MPR Algorithm. - 7.10 Properties of Equiripple FIR Filters. - 7.11 The Minimax Method for Bandpass Filters. - References. - 8 IIR Filter Design. - 8.1 Chapter Summary. - 8.2 Design Process. - 8.3 Lowpass Analog Filters. - 8.3.1 Laplace Transform. - 8.3.2 Transfer Function and Design Parameters. - 8.4 Butterworth Filters. - 8.5 Chebyshev Filters. - 8.5.1 Chebyshev-I Filters. - 8.5.2 Chebyshev-II Filters. - 8.6 Elliptic Filters. - 8.7 Normalized and Non-normalized Filters. - 8.8 Comparison Among the Four Analog Filter Types. - 8.9 From the Analog Lowpass Filter to the Digital One. - 8.9.1 Bilinear Transformation. - 8.9.2 Design Procedure. - 8.9.3 Examples. - 8.10 Frequency Transformations. - 8.10.1 From a Lowpass to a Highpass Filter. - 8.10.2 From a Lowpass to a Bandpass Filter. - 8.10.3 From a Lowpass to a Bandstop Filter . - 8.11 Direct Design of IIR Filters. - 8.12 Appendix. - 8.12.1 Trigonometric Functions with Complex Argument. - 8.12.2 Elliptic Integrals. - 8.12.3 Jacobi Elliptic Functions. - 8.12.4 Landen-Gauss Transformation. - 8.12.5 Elliptic Rational Function. - References. - PART 3 SPECTRAL ANALYSIS. - 9 Statistical Approach to Signal Analysis. - 9.1 Chapter Summary. - 9.2 Preliminary Considerations. - 9.3 Random Variables. - 9.4 Ensemble Averages. - 9.5 Stationary Random Processes and Signals. - 9.6 Ergodicity. - 9.7 Wiener-Khinchin Theorem for Random Signals and Power Spectrum. - 9.8 Cross-Power Spectrum of Two Random Signals. - 9.9 Effect of an LTI System on a Random Signal. - 9.10 Estimation of the Averages of Ergodic Stationary Signals. - 9.10.1 General Concepts in Estimation Theory. - 9.10.2 Mean and Variance Estimation. - 9.10.3 Autocovariance Estimation. - 9.10.4 Cross-Covariance Estimation. - 9.11 Appendix: A Road Map to the Analysis of a Data Record. - References. - 10 Non-Parametric Spectral Methods. - 10.1 Chapter Summary. - 10.2 Power Spectrum Estimation. - 10.3 Periodogram. - 10.3.1 Bias. - 10.3.2 Variance. - 10.3.3 Examples. - 10.3.4 Variance Reduction by Band- and Ensemble-Averaging. - 10.4 Bartlett’s Method. - 10.5 Modified Periodogram. - 10.6 Welch’s Method. - 10.7 Blackman-Tukey Method. - 10.8 Statistical Significance of Spectral Peaks. - 10.9 MultiTaper Method. - 10.10 Estimation of the Cross-Power Spectrum of Two Random Signals. - 10.11 Use of the FFT in Power Spectrum Estimation. - 10.12 Power Spectrum Normalization. - References. - 11 Parametric Spectral Methods. - 11.1 Chapter Summary. - 11.2 Signals with Rational Spectra . - 11.3 Stochastic Models and Processes. - 11.3.1 Autoregressive-Moving Average (ARMA) Model. - 11.3.2 Autoregressive (AR) Model. - 11.3.3 Moving Average (MA) Model. - 11.3.4 How the AR and MA Modeling Approaches Are Theoretically Related. - 11.3.5 First-Order AR and MA Models: White, Red and Blue Noise. - 11.3.6 Higher-Order AR Models. - 11.4 The AR Approach to Spectral Estimation. - 11.5 AR Modeling and Linear Prediction. - 11.6
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  • 10
    Signatur: ZSP-760/A-15
    In: Terra Antartica reports, No. 15
    Materialart: Schriftenreihen ausleihbar
    Seiten: 15 Seiten , Illustrationen , 8 Kartenbeilagen, 1 CD-ROM
    ISBN: 978-88-88395-12-8
    Serie: Terra Antartica reports 15
    Sprache: Englisch
    Anmerkung: 1 Kartenbeilage unter dem Titel: Mount Melbourne Quadrangle (Victoria Land) 2012 / P. C. Pertusati, G. Musumeci, R. Carosi, M. Meccheri 〈1 : 250.000〉 aus der Antarctic Geological 1:250.000 Map Series , 1 Kartenbeilage unter dem Titel: Reeves Névé Quadrangle (Victoria Land) 2012 / R. Casnedi, P. C. Pertusati, F. Salvini 〈1 : 250.000〉 aus der Antarctic Geological 1:250.000 Map Series , 1 Kartenbeilage unter dem Titel: Mount Murchison Quadrangle (Victoria Land) 1997 / G. Capponi, M. Meccheri & P. C. Pertusati 〈1 : 250.000〉 aus der Antarctic Geological 1:250.000 Map Series , 1 Kartenbeilage unter dem Titel: Mount Joyce Quadrangle (Victoria Land) 1999 / G. Capponi, L. Crispini, M. Meccheri, G. Musumeci & P. C. Pertusati 〈1 : 250.000〉 aus der Antarctic Geological 1:250.000 Map Series , 1 Kartenbeilage unter dem Titel: Relief Inlet Quadrangle (Victoria Land) 1999 / G. Capponi, L. Crispini, M. Meccheri, G. Musumeci & P. C. Pertusati 〈1 : 250.000〉 aus der Antarctic Geological 1:250.000 Map Series , 1 Kartenbeilage unter dem Titel: Coulman Island Quadrangle (Victoria Land) 1997 / G. Capponi, M. Meccheri & G. Oggiano 〈1 : 250.000〉 aus der Antarctic Geological 1:250.000 Map Series , 1 Kartenbeilage unter dem Titel: Sequence Hills Quadrangle (Victoria Land) 2012 / R. Carosi, M. Meccheri, G. Musumeci, P. C. Pertusati 〈1 : 250.000〉 aus der Antarctic Geological 1:250.000 Map Series , 1 Kartenbeilage unter dem Titel: Freyberg Mountains Quadrangle (Victoria Land) 2012 / G. Capponi, M. Meccheri, P. C. Pertusati 〈1 : 250.000〉 aus der Antarctic Geological 1:250.000 Map Series
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  • 11
    Monographie ausleihbar
    Monographie ausleihbar
    København : Gyldendal
    Signatur: AWI P8-18-91728
    Materialart: Monographie ausleihbar
    Seiten: 230 Seiten , Illustrationen, Karten , 30 x 31 cm
    Ausgabe: First edition, first print
    ISBN: 978-87-02-20964-8
    Sprache: Deutsch
    Anmerkung: Contents: Introduction. - A changing climate. - The emerging land. - The frozen past. - From ice to sea. - Plant adaptation. - Land of contrasts. - Sheep farming - now and in the future. - Methane in the Arctic. , Parallel texts in Danish and English
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  • 12
    Monographie ausleihbar
    Monographie ausleihbar
    Berlin : Springer
    Dazugehörige Bände
    Signatur: AWI S4-18-91822
    In: Texts in computational science and engineering, 6
    Materialart: Monographie ausleihbar
    Seiten: XXXI, 922Seiten , Illustrationen, graphische Darstellungen
    Ausgabe: Fifth edition
    ISBN: 9783662498873 , 9783662498866
    Serie: Texts in computational science and engineering 6
    Sprache: Englisch
    Anmerkung: Contents: 1 Computing with Formulas. - 1.1 The First Programming Encounter: a Formula. - 1.1.1 Using a Program as a Calculator. - 1.1.2 About Programs and Programming. - 1.1.3 Tools for Writing Programs. - 1.1.4 Writing and Running Your First Python Program. - 1.1.5 Warning About Typing Program Text. - 1.1.6 Verifying the Result. - 1.1.7 Using Variables. - 1.1.8 Names of Variables. - 1.1.9 Reserved Words in Python. - 1.1.10 Comments. - 1.1.11 Formatting Text and Numbers. - 1.2 Computer Science Glossary. - 1.3 Another Formula: Celsius-Fahrenheit Conversion. - 1.3.1 Potential Error: Integer Division. - 1.3.2 Objects in Python. - 1.3.3 Avoiding Integer Division. - 1.3.4 Arithmetic Operators and Precedence. - 1.4 Evaluating Standard Mathematical Functions. - 1.4.1 Example: Using the Square Root Function. - 1.4.2 Example: Computing with sinh x. - 1.4.3 A First Glimpse of Rounding Errors. - 1.5 Interactive Computing. - 1.5.1 Using the Python Shell. - 1.5.2 Type Conversion. - 1.5.3 IPython. - 1.6 Complex Numbers. - 1.6.1 Complex Arithmetics in Python. - 1.6.2 Complex Functions in Python. - 1.6.3 Unified Treatment of Complex and Real Functions. - 1.7 Symbolic Computing. - 1.7.1 Basic Differentiation and Integration. - 1.7.2 Equation Solving. - 1.7.3 Taylor Series and More. - 1.8 Summary. - 1.8.1 Chapter Topics. - 1.8.2 Example: Trajectory of a Ball. - 1.8.3 About Typesetting Conventions in This Book. - 1.9 Exercises. - 2 Loops and Lists. - 2.1 While Loops. - 2.1.1 A Naive Solution. - 2.1.2 While Loops. - 2.1.3 Boolean Expressions. - 2.1.4 Loop Implementation of a Sum. - 2.2 Lists. - 2.2.1 Basic List Operations. - 2.2.2 For Loops. - 2.3 Alternative Implementations with Lists and Loops. - 2.3.1 While Loop Implementation of a for Loop. - 2.3.2 The Range Construction. - 2.3.3 For Loops with List Indices. - 2.3.4 Changing List Elements. - 2.3.5 List Comprehension. - 2.3.6 Traversing Multiple Lists Simultaneously. - 2.4 Nested Lists. - 2.4.1 A table as a List of Rows or Columns. - 2.4.2 Printing Objects. - 2.4.3 Extracting Sublists. - 2.4.4 Traversing Nested Lists. - 2.5 Tuples. - 2.6 Summary. - 2.6.1 Chapter Topics. - 2.6.2 Example: Analyzing List Data. - 2.6.3 How to Find More Python Information. - 2.7 Exercises. - 3 Functions and Branching. - 3.1 Functions. - 3.1.1 Mathematical Functions as Python Functions. - 3.1.2 Understanding the Program Flow. - 3.1.3 Local and Global Variables. - 3.1.4 Multiple Arguments. - 3.1.5 Function Argument or Global Variable?. - 3.1.6 Beyond Mathematical Functions. - 3.1.7 Multiple Return Values. - 3.1.8 Computing Sums. - 3.1.9 Functions with No Return Values. - 3.1.10 Keyword Arguments. - 3.1.11 Doc Strings. - 3.1.12 Functions as Arguments to Functions. - 3.1.13 The Main Program. - 3.1.14 Lambda Functions. - 3.2 Branching. - 3.2.1 If-else Blocks. - 3.2.2 Inline if Tests. - 3.3 Mixing Loops, Branching, and Functions in Bioinformatics Examples. - 3.3.1 Counting Letters in DNA Strings. - 3.3.2 Efficiency Assessment. - 3.3.3 Verifying the Implementations. - 3.4 Summary. - 3.4.1 Chapter Topics. - 3.4.2 Example: Numerical Integration. - 3.5 Exercises. - 4 User Input and Error Handling. - 4.1 Asking Questions and Reading Answers. - 4.1.1 Reading Keyboard Input. - 4.2 Reading from the Command Line. - 4.2.1 Providing Input on the Command Line. - 4.2.2 A Variable Number of Command-Line Arguments. - 4.2.3 More on Command-Line Arguments. - 4.3 Turning User Text into Live Objects. - 4.3.1 The Magic Eval Function. - 4.3.2 The Magic Exec Function. - 4.3.3 Turning String Expressions into Functions. - 4.4 Option-Value Pairs on the Command Line. - 4.4.1 Basic Usage of the Argparse Module. - 4.4.2 Mathematical Expressions as Values. - 4.5 Reading Data from File. - 4.5.1 Reading a File Line by Line. - 4.5.2 Alternative Ways of Reading a File. - 4.5.3 Reading a Mixture of Text and Numbers. - 4.6 Writing Data to File. - 4.6.1 Example: Writing a Table to File. - 4.6.2 Standard Input and Output as File Objects. - 4.6.3 What is a File, Really?. - 4.7 Handling Errors. - 4.7.1 Exception Handling. - 4.7.2 Raising Exceptions. - 4.8 A Glimpse of Graphical User Interfaces. - 4.9 Making Modules. - 4.9.1 Example: Interest on Bank Deposits. - 4.9.2 Collecting Functions in a Module File. - 4.9.3 Test Block. - 4.9.4 Verification of the Module Code. - 4.9.5 Getting Input Data. - 4.9.6 Doc Strings in Modules. - 4.9.7 Using Modules. - 4.9.8 Distributing Modules. - 4.9.9 Making Software Available on the Internet. - 4.10 Making Code for Python 2 and 3. - 4.10.1 Basic Differences Between Python 2 and 3. - 4.10.2 Turning Python 2 Code into Python 3 Code. - 4.11 Summary. - 4.11.1 Chapter Topics. - 4.11.2 Example: Bisection Root Finding. - 4.12 Exercises. - 5 Array Computing and Curve Plotting. - 5.1 Vectors. - 5.1.1 The Vector Concept. - 5.1.2 Mathematical Operations on Vectors. - 5.1.3 Vector Arithmetics and Vector Functions. - 5.2 Arrays in Python Programs. - 5.2.1 Using Lists for Collecting Function Data. - 5.2.2 Basics of Numerical Python Arrays. - 5.2.3 Computing Coordinates and Function Values. - 5.2.4 Vectorization. - 5.3 Curve Plotting. - 5.3.1 MATLAB-Style Plotting with Matplotlib. - 5.3.2 Matplotlib; Pyplot Prefix. - 5.3.3 SciTools and Easyviz. - 5.3.4 Making Animations. - 5.3.5 Making Videos. - 5.3.6 Curve Plots in Pure Text. - 5.4 Plotting Difficulties. - 5.4.1 Piecewisely Defined Functions. - 5.4.2 Rapidly Varying Functions. - 5.5 More Advanced Vectorization of Functions. - 5.5.1 Vectorization of StringFunction Objects. - 5.5.2 Vectorization of the Heaviside Function. - 5.5.3 Vectorization of a Hat Function. - 5.6 More on Numerical Python Arrays. - 5.6.1 Copying Arrays. - 5.6.2 In-Place Arithmetics. - 5.6.3 Allocating Arrays. - 5.6.4 Generalized Indexing. - 5.6.5 Testing for the Array Type. - 5.6.6 Compact Syntax for Array Generation. - 5.6.7 Shape Manipulation. - 5.7 High-Performance Computing with Arrays. - 5.7.1 Scalar Implementation. - 5.7.2 Vectorized Implementation. - 5.7.3 Memory-Saving Implementation. - 5.7.4 Analysis of Memory Usage. - 5.7.5 Analysis of the CPU Time. - 5.8 Higher-Dimensional Arrays. - 5.8.1 Matrices and Arrays. - 5.8.2 Two-Dimensional Numerical Python Arrays. - 5.8.3 Array Computing. - 5.8.4 Matrix Objects. - 5.9 Some Common Linear Algebra Operations. - 5.9.1 Inverse, Determinant, and Eigenvalues. - 5.9.2 Products. - 5.9.3 Norms. - 5.9.4 Sum and Extreme Values. - 5.9.5 Indexing. - 5.9.6 Transpose and Upper/Lower Triangular Parts. - 5.9.7 Solving Linear Systems. - 5.9.8 Matrix Row and Column Operations. - 5.9.9 Computing the Rank of a Matrix. - 5.9.10 Symbolic Linear Algebra. - 5.10 Plotting of Scalar and Vector Fields. - 5.10.1 Installation. - 5.10.2 Surface Plots. - 5.10.3 Parameterized Curve. - 5.10.4 Contour Lines. - 5.10.5 The Gradient Vector Field. - 5.11 Matplotlib. - 5.11.1 Surface Plots. - 5.11.2 Contour Plots. - 5.11.3 Vector Field Plots. - 5.12 Mayavi. - 5.12.1 Surface Plots. - 5.12.2 Contour Plots. - 5.12.3 Vector Field Plots. - 5.12.4 A 3D Scalar Field and Its Gradient Field. - 5.12.5 Animations. - 5.13 Summary. - 5.13.1 Chapter Topics. - 5.13.2 Example: Animating a Function. - 5.14 Exercises. - 6 Dictionaries and Strings. - 6.1 Dictionaries. - 6.1.1 Making Dictionaries. - 6.1.2 Dictionary Operations. - 6.1.3 Example: Polynomials as Dictionaries. - 6.1.4 Dictionaries with Default Values and Ordering. - 6.1.5 Example: Storing File Data in Dictionaries. - 6.1.6 Example: Storing File Data in Nested Dictionaries. - 6.1.7 Example: Reading and Plotting Data Recorded at Specific Dates. - 6.2 Strings. - 6.2.1 Common Operations on Strings. - 6.2.2 Example: Reading Pairs of Numbers. - 6.2.3 Example: Reading Coordinates. - 6.3 Reading Data fromWeb Pages. - 6.3.1 About Web Pages. - 6.3.2 How to Access Web Pages
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  • 13
    Signatur: AWI S5-16-89899
    Materialart: Monographie ausleihbar
    Seiten: XXVIII, 2336 Seiten
    Ausgabe: 7. Auflage
    ISBN: 9783452285713 (Gb.)
    Serie: Heymanns Taschenkommentare
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 14
    Monographie ausleihbar
    Monographie ausleihbar
    Frankfurt am Main : Fachmedien Recht und Wirtschaft ; dfv Mediengruppe
    Dazugehörige Bände
    Signatur: AWI S5-16-90229
    In: Heidelberger Musterverträge ; 79
    Materialart: Monographie ausleihbar
    Seiten: 29 Seiten , 21 cm x 14.8 cm
    Ausgabe: 4., aktualisierte Auflage 2016
    ISBN: 9783800543496 , 978-3-8005-4349-6
    Serie: Heidelberger Musterverträge Heft 79
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 15
    Monographie ausleihbar
    Monographie ausleihbar
    Bonn : Bundesministerium für Bildung und Forschung (BMBF), Referat System Erde
    Signatur: AWI P1-18-91711
    Materialart: Monographie ausleihbar
    Seiten: 38 Seiten , Illustrationen
    Ausgabe: Stand: Mai 2016 (unveränderter Nachdruck Januar 2017)
    Sprache: Deutsch
    Anmerkung: Inhaltsverzeichnis: Vorwort. - 1. Einführung. - 2. Herausforderungen an die Küsten-, Meeres- und Polarforschung. - 3. Politischer und programmatischer Rahmen. - 4. Internationale Einbindung der Küsten-, Meeres- und Polarforschung. - 5. Agendaprozesse in der Küsten-, Meeres- und Polarforschung. - 6. Programmstruktur. - 7. Wissenschaftliches Programm. - 7.1 Globaler Wandel und Klima geschehen. - 7.2 Ökosystemfunktion und Biodiversität. - 7.3 Globale Stoffkreisläufe und Energieflüsse. - 7.4 Umgang mit Naturgefahren. - 7.5 Nachhaltige Ressourcennutzung. - 7.6 Governance und Partizipation. - 8. Forschungsinfrastrukturen. - 8.1 Forschungsflotte und Großgeräte. - 8.2 Mess- und Beobachtungstechnik. - 8.3 Daten- und Informationsinfrastrukturen. - 8.4 Modellierungsinfrastruktur. - 9. Innovative Technologien. - 10. Umsetzung des Forschungsprogramms. - 10.1 Zuwendungsgeber, Projektstruktur und Förderhöhe. - 10.2 Auswahlverfahren und Förderbestimmungen. - 10.3 Evaluation. - 11. Weitere Informationen und Ansprechpartner. - Impressum.
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  • 16
    Monographie ausleihbar
    Monographie ausleihbar
    Dessau-Roßlau : Umweltbundesamt
    Signatur: AWI S6-21-94458
    Materialart: Monographie ausleihbar
    Seiten: 43 Seiten , Illustrationen
    Ausgabe: Stand: Oktober 2016
    Sprache: Deutsch
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 17
    Signatur: AWI A4-22-94820
    In: Rendiconti Lincei. Scienze fisiche e naturali, Volume 27, Supplement 1
    Materialart: Zeitschrift ausleihbar
    Seiten: 270 Seiten , Illustrationen
    ISSN: 2037-4631
    Serie: Rendiconti Lincei. Scienze fisiche e naturali Volume 27, Supplement 1
    Sprache: Englisch
    Anmerkung: Table of Contents: Environmental changes in the Arctic: an Italian perspective / David Cappelletti, Roberto Azzolini, Leonardo Langone, Stefano Ventura, Angelo Viola, Stefano Aliani, Vito Vitale & Enrico Brugnoli Atmospheric observations at the Amundsen-Nobile Climate Change Tower in Ny-Ålesund, Svalbard / Mauro Mazzola, Angelo Pietro Viola, Christian Lanconelli & Vito Vitale On turbulence characteristics at Ny-Ålesund–Svalbard / Francesco Tampieri, Angelo Pietro Viola, Mauro Mazzola & Armando Pelliccioni Variability features associated with ozone column and surface UV irradiance observed over Svalbard from 2008 to 2014 / Boyan H. Petkov, Vito Vitale, Mauro Mazzola, Angelo Lupi, Christian Lanconelli, Angelo Viola & Maurizio Busetto Air-snow exchange of reactive nitrogen species at Ny-Ålesund, Svalbard (Arctic) / Antonietta Ianniello, Francesca Spataro, Rosamaria Salvatori, Mauro Valt, Marianna Nardino, Mats P. Björkman, Giulio Esposito & Mauro Montagnoli Size distribution and ion composition of aerosol collected at Ny-Ålesund in the spring–summer field campaign 2013 / F. Giardi, S. Becagli, R. Traversi, D. Frosini, M. Severi, L. Caiazzo, C. Ancillotti, D. Cappelletti, B. Moroni, M. Grotti, A. Bazzano, A. Lupi, M. Mazzola, V. Vitale, O. Abollino, L. Ferrero, E. Bolzacchini, A. Viola & R. Udisti Multi-seasonal ultrafine aerosol particle number concentration measurements at the Gruvebadet observatory, Ny-Ålesund, Svalbard Islands / Angelo Lupi, Maurizio Busetto, Silvia Becagli, Fabio Giardi, Christian Lanconelli, Mauro Mazzola, Roberto Udisti, Hans-Christen Hansson, Tabea Henning, Boyan Petkov, Johan Ström, Radovan Krejci, Peter Tunved, Angelo Pietro Viola & Vito Vitale Elemental and lead isotopic composition of atmospheric particulate measured in the Arctic region (Ny-Ålesund, Svalbard Islands) / Andrea Bazzano, Francisco Ardini, Marco Grotti, Mery Malandrino, Agnese Giacomino, Ornella Abollino, David Cappelletti, Silvia Becagli, Rita Traversi & Roberto Udisti Sulfate source apportionment in the Ny-Ålesund (Svalbard Islands) Arctic aerosol / Roberto Udisti, Andrea Bazzano, Silvia Becagli, Ezio Bolzacchini, Laura Caiazzo, David Cappelletti, Luca Ferrero, Daniele Frosini, Fabio Giardi, Marco Grotti, Angelo Lupi, Mery Malandrino, Mauro Mazzola, Beatrice Moroni, Mirko Severi, Rita Traversi, Angelo Viola & Vito Vitale Water-soluble trace, rare earth elements and organic compounds in Arctic aerosol / Clara Turetta, Roberta Zangrando, Elena Barbaro, Jacopo Gabrieli, Elisa Scalabrin, Piero Zennaro, Andrea Gambaro, Giuseppa Toscano & Carlo Barbante AGAP: an atmospheric gondola for aerosol profiling / Mauro Mazzola, Maurizio Busetto, Luca Ferrero, Angelo Pietro Viola & David Cappelletti Local vs. long-range sources of aerosol particles upon Ny-Ålesund (Svalbard Islands): mineral chemistry and geochemical records / Beatrice Moroni, David Cappelletti, Luca Ferrero, Stefano Crocchianti, Maurizio Busetto, Mauro Mazzola, Silvia Becagli, Rita Traversi & Roberto Udisti Snowpack characteristics of Brøggerhalvøya, Svalbard Islands / Mauro Valt & Rosamaria Salvatori Continuous monitoring of spectral albedo of snowed surfaces in Ny-Ålesund / Roberto Salzano, Christian Lanconelli, Rosamaria Salvatori, Giulio Esposito & Vito Vitale Evolution of the Svalbard annual snow layer during the melting phase / Andrea Spolaor, Elena Barbaro, Jean Marc Christille, Torben Kirchgeorg, Fabio Giardi, David Cappelletti, Clara Turetta, Andrea Bernagozzi, Mats P. Björkman, Enzo Bertolini & Carlo Barbante Characterization of seawater properties and ocean heat content in Kongsfjorden, Svalbard Archipelago / Stefano Aliani, Roberta Sciascia, Ilaria Conese, Alessandra D’Angelo, Fabrizio Del Bianco, Federico Giglio, Leonardo Langone & Stefano Miserocchi Gas hydrate stability zone in shallow Arctic Ocean in presence of sub-sea permafrost / Umberta Tinivella & Michela Giustiniani A numerical algorithm for the assessment of the conjecture of a subglacial lake tested at Amundsenisen, Svalbard / Daniela Mansutti, Edoardo Bucchignani & Piotr Glowacki Trace elements in marine particulate and surface sediments of Kongsfjorden, Svalbard Islands / Francisco Ardini, Andrea Bazzano, Paola Rivaro, Francesco Soggia, Amanda Terol & Marco Grotti Stable isotopes and digital elevation models to study nutrient inputs in high-arctic lakes / Edoardo Calizza, Maria Letizia Costantini, David Rossi, Vittorio Pasquali, Giulio Careddu & Loreto Rossi Legacy and emergent POPs in the marine fauna of NE Greenland with special emphasis on the Greenland shark Somniosus microcephalus / Simonetta Corsolini, Karla Pozo & Jørgen S. Christiansen Body size-related constraints on the movement behaviour of the arctic notostracan Lepidurus arcticus (Pallas, 1973) under laboratory conditions / Giorgio Mancinelli & Vittorio Pasquali Geomorphological features of the Kongsfjorden area: Ny-Ålesund, Blomstrandøya (NW Svalbard, Norway) / Enrico Miccadei, Tommaso Piacentini & Claudio Berti Quantification of fracturing within fault damage zones affecting Late Proterozoic carbonates in Svalbard / Paola Cianfarra & F. Salvini Towards a calibration laboratory in Ny-Ålesund / Chiara Musacchio, Andrea Merlone, Angelo Viola, Vito Vitale & Marion Maturilli Development of an automatic sampler for extreme polar environments: first in situ application in Svalbard Islands / Giuseppe Zappalà, Gabriele Bruzzone, Gabriella Caruso & Maurizio Azzaro Isolation and degradation potential of a cold-adapted oil/PAH-degrading marine bacterial consortium from Kongsfjorden (Arctic region) / Francesca Crisafi, Laura Giuliano, Michail M. Yakimov, Maurizio Azzaro & Renata Denaro
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  • 18
    Signatur: ZSP-994
    Materialart: Schriftenreihen ausleihbar
    Seiten: 21 x 21 cm
    ISSN: 1618-3703
    Vorheriger Titel: Vorgänger: Zweijahresbericht / Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung
    Nachfolgender Titel: Fortsetzung Zweijahresbericht ... / AWI, Alfred-Wegener-Institut für Polar- und Meeresforschung in der Helmholtz-Gemeinschaft
    Sprache: Deutsch , Englisch
    Anmerkung: Erscheint alle 2 Jahre , Text in deutscher und englischer Sprache
    Standort: AWI Lesesaal
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  • 19
    Monographie ausleihbar
    Monographie ausleihbar
    Dordrecht [u.a.] : Kluwer
    Dazugehörige Bände
    Signatur: AWI A2-07-0063
    In: Atmospheric and oceanographic sciences library, 26
    Beschreibung / Inhaltsverzeichnis: This monograph presents a comprehensive synthesis of our current state of knowledge concerning the climate of the Arctic, using the latest meteorological data. All meteorological elements are described in detail for the first time and an up-to-date review of the available literature for each element is given. Climatic regions are distinguished and described. The monograph also provides an account of the present state of research on climate change and variability in the Arctic for three time scales: the Holocene, the last Millennium, and the 20th century. The book concludes with a presentation of the scenarios of the Arctic climate in the 21st century. This monograph is intended for all those with a general interest in the fields of meteorology, climatology, and with a knowledge of the application of statistics in these areas.
    Materialart: Monographie ausleihbar
    Seiten: XI, 270 Seiten , Illustrationen
    ISBN: 1402011342
    Serie: Atmospheric and oceanographic sciences library 26
    Sprache: Englisch
    Anmerkung: CONTENTS Preface Acknowledgements 1. Introduction 1.1 Boundaries of the Arctic 1.2 Main Geographical Factors Shaping the Climate 2. Atmospheric Circulation 2.1 Development of Views on Atmospheric Circulation in the Arctic 2.2 Large-scale Atmospheric Circulation 2.3 Synoptic-scale Circulation 2.4 Winds 2.5 Local Circulation and Mesoscale Disturbances 3. Radiation Conditions 3.1 Sunshine Duration 3.2 Global Solar Radiation 3.3 Short-wave Net Radiation 3.4 Long-wave Net Radiation 3.5 Net Radiation and Other Elements of the Heat Balance 4. Air Temperature 4.1 Mean Monthly, Seasonal, and Annual Air Temperature 4.2 Mean and Absolute Extreme Air Temperatures 4.3 Temperature Inversions 5. Cloudiness 5.1 The Annual Cycle 5.2 Spatial Patterns 5.3 Fog 6. Air Humidity 6.1 Water Vapour Pressure 6.2 Relative Humidity 7. Atmospheric Precipitation and Snow Cover 7.1 Atmospheric Precipitation 7.2 Number of Days with Precipitation 7.3 Snow Cover 8. Air Pollution 9. Climatic Regions 9.1 The Atlantic Region 9.2 The Siberian Region 9.3 The Pacific Region 9.4 The Canadian Region 9.5 The Baffin Bay Region 9.6 The Greenland Region 9.7 The Interior Arctic Region 10. Climatic Change and Variability in the Holocene 10.1 Period 10-11 ka-l ka BP 10.2 Period 1 ka-O.l ka BP 10.3 Period 0.1 ka-Present 11. Scenarios of the Arctic Climate in the 21st Century 11.1 Model Simulations of the Present-day Arctic Climate 11.2 Scenarios of the Arctic Climate in the 21st Century References Copyright Acknowledgements Index
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  • 20
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge [u.a.] : Cambridge University Press
    Signatur: AWI A5-04-0013
    Materialart: Monographie ausleihbar
    Seiten: xi, 612 Seiten , Illustrationen
    Ausgabe: 1st published
    ISBN: 0521624304
    Sprache: Englisch
    Anmerkung: Contents List of contributors Preface 1 Introduction 1.1 Polar lows and other mesoscale lows in the polar regions 1.2 A brief historical review 1.3 Definition 1.4 Nomenclature 1.5 Classification 1.6 Cloud signatures 2 Climatology 2.1 The Arctic 2.2 The Antarctic 3 Observational studies 3.1 The Arctic 3.2 The Antarctic 4 Theoretical investigations 4.1 Introduction 4.2 Baroclinic instability 4.3 Barotropic instability 4.4 Potential vorticity thinking 4.5 The role of thermal instability in polar low formation and maintenance 4.6 Further theoretical considerations 4.7 Summary and concluding remarks 5 Numerical Simulation 5.1 The Arctic 5.2 The Antarctic 6 Forecasting of polar lows 6.1 Aspects common to both polar regions 6.2 Aspects of forecasting specific to the Arctic 6.3 Aspects of forecasting specific to the Antarctic 6.4 Future work required to improve forecasts 7 Conclusions and future research needs 7.1 The spatial distribution of polar lows and other high latitude mesoscale vortices 7.2 Possible climatic effects of polar lows 7.3 Observational and modelling studies 7.4 Formation and development mechanisms 7.5 Forecasting of polar lows 7.6 Final thoughts References Index
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  • 21
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge : Cambridge University Press
    Signatur: AWI A6-04-0010
    Materialart: Monographie ausleihbar
    Seiten: xviii, 719 Seiten , Illustrationen
    Ausgabe: First published
    ISBN: 052100666X , 0-521-00666-X
    Sprache: Englisch
    Anmerkung: Contents Preface Part 1 Mathematical tools M 1 Algebra of vectors M 1.1 Basic concepts and definitions M 1.2 Reference frames M 1.3 Vector multiplication M 1.4 Reciprocal coordinate systems M 1.5 Vector representations M 1.6 Products of vectors in general coordinate systems M 1.7 Problems M 2 Vector functions M 2.1 Basic definitions and operations M 2.2 Special dyadics M 2.3 Principal-axis transformation of symmetric tensors M 2.4 Invariants of a dyadic M 2.5 Tensor algebra M 2.6 Problems M 3 Differential relations M 3.1 Differentiation of extensive functions M 3.2 The Hamilton operator in generalized coordinate systems M 3.3 The spatial derivative of the basis vectors M 3.4 Differential invariants in generalized coordinate systems M 3.5 Additional applications M 3.6 Problems M 4 Coordinate transformations M 4.1 Transformation relations of time-independent coordinate systems M 4.2 Transformation relations of time-dependent coordinate systems M 4.3 Problems M 5 The method of covariant differentiation M 5.1 Spatial differentiation of vectors and dyadics M 5.2 Time differentiation of vectors and dyadics M 5.3 The local dyadic of vP M 5.4 Problems M 6 Integral operations M 6.1 Curves, surfaces, and volumes in the general qi system M 6.2 Line integrals, surface integrals, and volume integrals M 6.3 Integral theorems M 6.4 Fluid lines, surfaces, and volumes M 6.5 Time differentiation of fluid integrals M 6.6 The general form of the budget equation M 6.7 Gauss' theorem and the Dirac delta function M 6.8 Solution of Poisson's differential equation M 6.9 Appendix: Remarks on Euclidian and Riemannian spaces M 6.10 Problems M 7 Introduction to the concepts of nonlinear dynamics M 7.1 One-dimensional flow M 7.2 Two-dimensional flow Part 2 Dynamics of the atmosphere 1 The laws of atmospheric motion 1.1 The equation of absolute motion 1.2 The energy budget in the absolute reference system 1.3 The geographical coordinate system 1.4 The equation of relative motion 1.5 The energy budget of the general relative system 1.6 The decomposition of the equation of motion 1.7 Problems 2 Scale analysis 2.1 An outline of the method 2.2 Practical formulation of the dimensionless flow numbers 2.3 Scale analysis of large-scale frictionless motion 2.4 The geostrophic wind and the Euier wind 2.5 The equation of motion on a tangential plane 2.6 Problems 3 The material and the local description of flow 3.1 The description of Lagrange 3.2 Lagrange's version of the continuity equation 3.3 An example of the use of Lagrangian coordinates 3.4 The local description of Euler 3.5 Transformation from the Eulerian to the Lagrangian system 3.6 Problems 4 Atmospheric flow fields 4.1 The velocity dyadic 4.2 The deformation of the continuum 4.3 Individual changes with time of geometric fluid configurations 4.4 Problems 5 The Navier-Stokes stress tensor 5.1 The general stress tensor 5.2 Equilibrium conditions in the stress field 5.3 Symmetry of the stress tensor 5.4 The frictional stress tensor and the deformation dyadic 5.5 Problems 6 The Helmholtz theorem 6.1 The three-dimensional Helmholtz theorem 6.2 The two-dimensional Helmholtz theorem 6.3 Problems 7 Kinematics of two-dimensional flow 7.1 Atmospheric flow fields 7.2 Two-dimensional streamlines and normals 7.3 Streamlines in a drifting coordinate system 7.4 Problems 8 Natural coordinates 8.1 Introduction 8.2 Differential definitions of the coordinate lines 8.3 Metric relationships 8.4 Blaton's equation 8.5 Individual and local time derivatives of the velocity 8.6 Differential invariants 8.7 The equation of motion for frictionless horizontal flow 8.8 The gradient wind relation 8.9 Problems 9 Boundary surfaces and boundary conditions 9.1 Introduction 9.2 Differential operations at discontinuity surfaces 9.3 Particle invariance at boundary surfaces, displacement velocities 9.4 The kinematic boundary-surface condition 9.5 The dynamic boundary-surface condition 9.6 The zeroth-order discontinuity surface 9.7 An example of a first-order discontinuity surface 9.8 Problems 10 Circulation and vorticity theorems 10.1 ErteFs form of the continuity equation 10.2 The baroclinic Weber transformation 10.3 The baroclinic Ertel-Rossby invariant 10.4 Circulation and vorticity theorems for frictionless baroclinic flow 10.5 Circulation and vorticity theorems for frictionless barotropic flow 10.6 Problems 11 Turbulent systems 11.1 Simple averages and fluctuations 11.2 Weighted averages and fluctuations 11.3 Averaging the individual time derivative and the budget operator 11.4 Integral means 11.5 Budget equations of the turbulent system 11.6 The energy budget of the turbulent system 11.7 Diagnostic and prognostic equations of turbulent systems 11.8 Production of entropy in the microturbulent system 11.9 Problems 12 An excursion into spectral turbulence theory 12.1 Fourier Representation of the continuity equation and the equation of motion 12.2 The budget equation for the amplitude of the kinetic energy 12.3 Isotropie conditions, the transition to the continuous wavenumber space 12.4 The Heisenberg spectrum 12.5 Relations for the Heisenberg exchange coefficient 12.6 A prognostic equation for the exchange coefficient 12.7 Concluding remarks on closure procedures 12.8 Problems 13 The atmospheric boundary layer 13.1 Introduction 13.2 Prandtl-layer theory 13.3 The Monin-Obukhov similarity theory of the neutral Prandtl layer 13.4 The Monin-Obukhov similarity theory of the diabatic Prandtl layer 13.5 Application of the Prandtl-layer theory in numerical prognostic models 13.6 The fluxes, the dissipation of energy, and the exchange coefficients 13.7 The interface condition at the earth's surface 13.8 The Ekman layer - the classical approach 13.9 The composite Ekman layer 13.10 Ekman pumping 13.11 Appendix A: Dimensional analysis 13.12 Appendix B: The mixing length 13.13 Problems 14 Wave motion in the atmosphere 14.1 The representation of waves 14.2 The group velocity 14.3 Perturbation theory 14.4 Pure sound waves 14.5 Sound waves and gravity waves 14.6 Lamb waves 14.7 Lee waves 14.8 Propagation of energy 14.9 External gravity waves 14.10 Internal gravity waves 14.11 Nonlinear waves in the atmosphere 14.12 Problems 15 The barotropic model 15.1 The basic assumptions of the barotropic model 15.2 The tinfiltered barotropic prediction model 15.3 The filtered barotropic model 15.4 Barotropic instability 15.5 The mechanism of barotropic development 15.6 Appendix 15.7 Problems 16 Rossby waves 16.1 One-and two-dimensional Rossby waves 16.2 Three-dimensional Rossby waves 16.3 Normal-mode considerations 16.4 Energy transport by Rossby waves 16.5 The influence of friction on the stationary Rossby wave 16.6 Barotropic equatorial waves 16.7 The principle of geostrophic adjustment 16.8 Appendix 16.9 Problems 17 Inertial and dynamic stability 17.1 Inertial motion in a horizontally homogeneous pressure field 17.2 Inertial motion in a homogeneous geostrophic wind field 17.3 Inertial motion in a geostrophic shear wind field 17.4 Derivation of the stability criteria in the geostrophic wind field 17.5 Sectorial stability and instability 17.6 Sectorial stability for normal atmospheric conditions 17.7 Sectorial stability and instability with permanent adaptation 17.8 Problems 18 The equation of motion in general coordinate systems 18.1 Introduction 18.2 The covariant equation of motion in general coordinate systems 18.3 The contravariant equation of motion in general 18.4 The equation of motion in orthogonal coordinate systems 18.5 Lagrange's equation of motion 18.6 Hamilton's equation of motion 18.7 Appendix 18.8 Problems 19 The geographical coordinate systems 19.1 The equation of motion 19.2 Application of Lagrange's equation of motion 19.3 The first metric simplification 19.4 The coordinate simplification 19.5 The continuity equation 19.6 Problems 20 The stereographic coordinate system 20.1 The stereographic projection 20.2 Metric forms in stereographic coordinates 20.
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  • 22
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Dazugehörige Bände
    Signatur: ZS-090(435) ; ZSP-168-435
    In: Berichte zur Polar- und Meeresforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: XII, 115 S.
    ISSN: 1618-3193
    Serie: Berichte zur Polar- und Meeresforschung 435
    Klassifikation:
    Sedimentologie
    Sprache: Deutsch
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
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  • 23
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Dazugehörige Bände
    Signatur: ZS-090(440) ; ZSP-168-440
    In: Berichte zur Polar- und Meeresforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: VIII, 155 S.
    ISSN: 1618-3193
    Serie: Berichte zur Polar- und Meeresforschung 440
    Klassifikation:
    Ozeanographie
    Sprache: Englisch
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
    Zweigbibliothek: GFZ Bibliothek
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  • 24
    Signatur: AWI A1-03-0001(5)
    In: Encyclopedia of atmospheric sciences, Volume 5
    Materialart: Monographie Präsenzbestand
    Seiten: XLII, Seiten 1825-2241 , Illustrationen, Karten
    ISBN: 0122270959 , 0-12-227095-9
    Sprache: Englisch
    Anmerkung: Contents Volume 5 RADAR MST and ST Radars and Wind Profilers / R.F. Woodman Precipitation Radar / S.E. Yuter Synthetic Aperture Radar (Land Surface Applications) / R.K. Vincent RADIATION (SOLAR) / Q. Fu RADIATIVE TRANSFER Absorption and Thermal Emission / R. Goody, H. Hu Cloud-Radiative Processes / Q. Fu Non-Local Thermodynamic Equilibrium / F.W. Taylor, M. Lopez-Puertas Scattering / M. Mishchenko, L. Travis, A. Lacis RADIOACTIVITY Cosmogenic Radionuclides / D. Lal RADIOSONDES / W.F. Dabberdt, R. Shellhorn, H. Cole, A. Paukkunen, J. Horhammer, V. Antikainen RAINBOWS (See OPTICS, ATMOSPHERIC: Optical Phenomena) REFLECTANCE AND ALBEDO, SURFACE / J.A. Coakley ROSSBY WAVES / P.B. Rhines SATELLITE REMOTE SENSING Aerosol Measurements / Y.J. Kaufman, D. Tanre Cloud Properties / P. Yang, B.A. Baum GPS Meteorology / S.B. Healy Precipitation / Guosheng Liu Surface Wind / W.T. Liu Temperature Soundings / A. Dudhia TOMS Ozone / R.S. Stolarski, R.D. McPeters Water Vapor / J.E. Harries Wind, Middle Atmosphere / P.B. Hays, W.R. Skinner SATELLITES Orbits / S.Q. Kidder Research (Atmospheric Science) / M.D. King, D.D. Herring SEA ICE / W.F. Weeks SEVERE STORMS / C.A. Doswell III SNOW (SURFACE) / M. Sturm SOLAR TERRESTRIAL INTERACTIONS / J.D. Haigh SOLAR WINDS / S.T. Suess, B.T. Tsurutani SOLITARY WAVES / J.P. Boyd SOOT / P. Chylek, S.G. Jennings, R. Pinnick SPECTRAL MODELS / F. Baer STANDARD ATMOSPHERE / W.W. Vaughan STATIC STABILITY / J.A. Young STATIONARY WAVES (OROGRAPHIC AND THERMALLY FORCED) / S. Nigam, E. De Weaver STRATOSPHERE-TROPOSPHERE EXCHANGE Global Aspects / J.R. Holton Local Processes / J.F. Lamarque, P. Hess STRATOSPHERIC CHEMISTRY AND COMPOSITION Overview / J.A. Pyle Halogen Sources, Anthropogenic / A. McCulloch, P.M. Midgley Halogen Sources, Natural / J.H. Butler Halogens / D. Toohey HOx / T.F. Hanisco Hydrogen Budget / J.E. Harries Hydroxyl Radical / D.E. Heard Reactive Nitrogen (NOx and NOy) / Y. Kondo STRATOSPHERIC OZONE RECOVERY / D.J. Hofmann STRATOSPHERIC WATER VAPOR / J.E. Harries SURFACE LAYER MEASUREMENTS OF TURBULENCE / N.O. Jensen SYNOPTIC METEOROLOGY Forecasting / D. Mansfield Weather Maps / R. Reynolds
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  • 25
    Signatur: ZS-090(466) ; ZSP-168-466
    In: Berichte zur Polar- und Meeresforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 341 S.
    ISSN: 1618-3193
    Serie: Berichte zur Polar- und Meeresforschung 466
    Klassifikation:
    Ozeanographie
    Sprache: Englisch
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
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  • 26
    Signatur: AWI G7 04-0015
    In: Developments in quaternary science, Volume 1
    Materialart: Monographie ausleihbar
    Seiten: ix, 584 Seiten , Illustrationen
    Ausgabe: First edition
    ISBN: 0444514716
    Serie: Developments in quaternary science 1
    Sprache: Englisch
    Anmerkung: Contents Foreword / Jim Rose Preface / Alan R. Gillespie, Stephen C. Porter and Brian F. Atwater The southern Laurentide Ice Sheet / David M. Mickelson and Patrick M. Colgan The Cordilleran Ice Sheet / Derek B. Booth, Kathy Goetz Troost, John J. Clague and Richard B. Waitt Controls, history, outbursts, and impact of large late-Quaternary proglacial lakes in North America / James T. Teller Pleistocene glaciations of the Rocky Mountains / Kenneth L. Pierce Quaternary alpine glaciation in Alaska, the Pacific Northwest, Sierra Nevada, and Hawaii / Darrell S. Kaufman, Stephen C. Porter and Alan R. Gillespie Coupling ice-sheet and climate models for simulation of former ice sheets / Shawn J. Marshall, David Pollard, Steven Hostetler and Peter U. Clark Permafrost process research in the United States since 1960 / Bernard Hallet, Jaakko Putkonen, Ronald S. Sletten and Noel Potter Jr. Quaternary sea-level history of the United States / Daniel R. Muhs, John F. Wehmiller, Kathleen R. Simmons, and Linda L. York Western lakes / Larry Benson Isotopic records from ground-water and cave speleothem calcite in North America / Jay Quade Rivers and riverine landscapes / David R. Montgomery and Ellen E. Wohl Landscape evolution models / Frank J. Pazzaglia Eolian sediments / Alan J. Busacca, James E. Beget, Helaine W. Markewich, Daniel R. Muhs, Nicholas Lancaster and Mark R. Sweeney Soils and the Quaternary climate system / Milan J. Pavich and Oliver A. Chadwick Earthquake recurrence inferred from paleoseismology / Brian F. Atwater, Martitia P. Tuttle, Eugene S. Schweig, Charles M. Rubin, David K. Yamaguchi and Eileen Hemphill-Haley Quaternary volcanism in the United States / William E. Scott Late-Quaternary vegetation history of the eastern United States / Eric C. Grimm and George L. Jacobson Jr. Quaternary vegetation and climate change in the western United States: Developments, perspectives, and prospects / Robert S. Thompson, Sarah L. Shafer, Laura E. Strickland, Peter K. Van de Water and Katherine H. Anderson Results and paleoclimate implications of 35 years of paleoecological research in Alaska / Patricia M. Anderson, Mary E. Edwards and Linda B. Brubaker Quaternary history from the U.S. tropics / Sara Hotchkiss Climatically forced vegetation dynamics in eastern North America during the late Quaternary Period / Thompson Webb III, Bryan Shuman and John W. Williams Holocene fire activity as a record of past environmental change / Cathy Whitlock and Patrick J. Bartlein Interannual to decadal climate and streamflow variability estimated from tree rings / David W. Stahle, Falko K. Fye and Matthew D. Therrell Quaternary Coleoptera of the United States and Canada / Allan C. Ashworth Vertebrate paleontology / S. David Webb, Russell W. Graham, Anthony D. Barnosky, Christopher J. Bell, Richard Franz, Elizabeth A. Hadly, Ernest L. Lundelius Jr., H. Gregory McDonald, Robert A. Martin, Holmes A. Semken Jr. and David W. Steadman Peopling of North America / David J. Meltzer Modeling paleoclimates / Patrick J. Bartlein and Steven W. Hostetle
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  • 27
    Signatur: AWI A1-18-91909
    Materialart: Monographie ausleihbar
    Seiten: XIV, 99 Seiten , Illustrationen
    Ausgabe: 1. publ.
    ISBN: 9032703196
    Serie: DWC-Report DWCSSO-01
    Sprache: Englisch
    Anmerkung: TABLE OF CONTENTS: Preface. - A summary of key issues addressed in this document. - 1: Brief Overview of the Science on Water and Climate. - 1.1 Introduction. - 1.2 Climatic Information. - 1.2.1 Current expectations of future climate in light of uncertainties. - 1.2.2 Anticipated global climate change and water resources. - 1.2.3 Regional climate change. - 1.3 Water Resources. - 1.3.1 Why do water resources matter?. - 1.3.2 What do we know from past experiences of climate variability and change?. - 1.3.3 What do we expect for the future?. - 1.3.4 How reliable is our information?. - 1.3.5 How do we prepare for the future?. - 1.4 Impacts of Climate Change on Water-Related Extremes: Background. - 1.5 Floods. - 1.5.1 Why do floods matter?. - 1.5.2 What do we know from the past about floods?. - 1.5.3 What do we expect for the future?. - 1.5.4 What are our information needs on flow data?. - 1.5.5 How do we prepare for the future?. - 1.6 Droughts. - 1.6.1 Why do droughts matter?. - 1.6.2 What do we know from the past about droughts?. - 1.6.3 What do we expect for the future?. - 1.6.4 What are our information needs?. - 1.6.5 How do we prepare for the future?. - 1.7 Concluding Thoughts. - 2: Coping with Climate Variability and Climate Change in Water Resources. - 2.1 Introduction. - 2.2 Who are Water Managers and What do They Manage?. - 2.3 Integrated Water Resources Management as Prerequisite for Coping and Adaptation. - 2.3.1 What is IWRM?. - 2.3.2 Spatial and temporal scale issues in IWRM. - 2.3.3 IWRM in developing countries. - 2.4 Coping Strategies for Dealing with Uncertainties Associated with Climate Variability and Change. - 2.4.1 Water resources engineering. - 2.4.2 Agriculture. - 2.4.3 Climate forecasting. - 2.4.4 Indigenous coping strategies. - 2.4.5 Approaches to adapting to and coping with climate variability and change. - 2.5 Concluding Thoughts. - 3: A Conceptual Framework for Identifying ‘Hot Spots’ of Vulnerability to Climate Variability and Climate Change. - 3.1 ‘Hot Spots’: Regions of High Vulnerability. - 3.2 Identifying and Assessing Hot Spots of Water Resources Vulnerability with Respect to Climate Change. - 3.3 Related Research That Can Contribute to Hot Spot Assessment. - 3.4 Development Needed for Improved Vulnerability Assessment. - 3.5 First Steps Towards a New Framework for Vulnerability Assessment of Water Resources. - 3.5.1 The suggested framework. - 3.5.2 Hot spots at different spatial and temporal scales. - 3.6 Examples of Applying the Framework. - 3.6.1 The Ganges-Brahmaputra-Meghna Basin. - 3.6.2 Over-abstracted aquifers in the Mediterranean. - 3.7 Concluding Thoughts. - 4: Policy Analysis and Institutional Frameworks in Climate and Water. - 4.1 Introduction. - 4.2 Evolution of a Political Framework for Water Resource Management. - 4.3 Critical Review of Present Approaches and Policy Responses with Regard to IWRM. - 4.4 Institutional Decision-Making on Water and Climate in the North and South. - 4.4.1 Data and decisions. - 4.4.2 North-South collaboration and dialogue. - 4.4.3 National and regional power structures. - 4.5 Barriers to Success in Current Practices in Water Resources Management. - 4.6 Identification of Solutions. - 4.6.1 The need for new paradigms. - 4.6.2 Economic stability and access to markets. - 4.6.3 Institutional capacity for water management. - 4.6.4 Participation in water management. - 4.6.5 Information sharing and awareness. - 4.6.6 The facilitating role of government. - 4.6.7 Co-operative agreements. - 4.7 Challenges and Recommendations. - 4.7.1 The political debate on ‘the poor’. - 4.7.2 The political debate on climate change. - 4.7.3 Institutional capacity building. - 4.8 Concluding Thoughts. - Appendix A: Summary of Findings from IPCC (2001) Reports on the Theme of Water and Climate. - A.1 Preamble. - A.2 Introduction. - A.3. Current State of Climate Change and Water Research Since the IPCC’s Second Assessment Report of 1995. - A.4 Climate Scenarios. - A.5 Climate Modelling. - A.6 Effects on the Hydrological Cycle. - A.6.1 Precipitation. - A.6.2 Evapotranspiration. - A.6.3 Soil moisture. - A.6.4 Groundwater recharge. - A.6.5 River flows. - A.6.6 Other Hydrological Responses. - A.7 Effects of Climate Change on Water Withdrawals. - A.8 Impacts of Climate Change on Water Resources. - A.9 Adaptation Options and Management Implications. - Appendix B: Abbreviations and Acronyms. - Appendix C: Glossary of Terms. - Appendix D: List of Authors and their Affiliations. - References.
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  • 28
    Monographie ausleihbar
    Monographie ausleihbar
    London [u.a.] : Routledge
    Signatur: AWI A5-18-91525
    Materialart: Monographie ausleihbar
    Seiten: XVI, 421 S. , Ill., graph. Darst., Kt. , 25cm
    Ausgabe: 8. ed.
    ISBN: 0415271711 (pbk.) , 0415271703
    Sprache: Englisch
    Anmerkung: Contents: Preface to the eighth edition. - Acknowledgements. - 1 INTRODUCTION AND HISTORY OF METEOROLOGY AND CLIMATOLOGY. - A The atmosphere. - B Solar energy. - C Global circulation. - D Climatology. - E Mid-latitude disturbances. - F Tropical weather. - G Palaeoclimates. - H The global climate system. - 2 ATMOSPHERIC COMPOSITION, MASS AND STRUCTURE. - A Composition of the atmosphere. - 1 Primary gases. - 2 Greenhouse gases. - 3 Reactive gas species. - 4 Aerosols. - 5 Variations with height. - 6 Variations with latitude and season. - 7 Variations with time. - B Mass of the atmosphere. - 1 Total pressure. - 2 Vapour pressure C The layering of the atmosphere. - 1 Troposphere. - 2 Stratosphere. - 3 Mesosphere. - 4 Thermosphere. - 5 Exosphere and magnetosphere. - 3 SOLAR RADIATION AND THE GLOBAL ENERGY BUDGET. - A Solar radiation. - 1 Solar output. - 2 Distance from the sun. - 3 Altitude of the sun. - 4 Length of day. - B Surface receipt of solar radiation and its effects. - 1 Energy transfer within the earth-atmosphere system. - 2 Effect of the atmosphere. - 3 Effect of cloud cover. - 4 Effect of latitude. - 5 Effect ofland and sea. - 6 Effect of elevation and aspect. - 7 Variation of free-air temperature with height. - C Terrestrial infra-red radiation and the greenhouse effect. - D Heat budget of the earth. - E Atmospheric energy and horizontal heat transport. - 1 The horizontal transport of heat. - 2 Spatial pattern of the heat budget components. - 4 ATMOSPHERIC MOISTURE BUDGET. - A The global hydrological cycle. - B Humidity. - 1 Moisture content. - 2 Moisture transport. - C Evaporation. - D Condensation. - E Precipitation characteristics and measurement. - 1 Forms of precipitation. - 2 Precipitation characteristics. - a Rainfall intensity. - b Areal extent of a rainstorm. - c Frequency of rainstorms. - 3 The world pattern of precipitation. - 4 Regional variations in the altitudinal maximum of precipitation. - 5 Drought. - 5 ATMOSPHERIC INSTABILITY, CLOUD FORMATION AND PRECIPITATION PROCESSES. - A Adiabatic temperature changes. - B Condensation level. - C Air stability and instability. - D Cloud formation. - 1 Condensation nuclei. - 2 Cloud types. - 3 Global cloud cover. - E Formation of precipitation. - 1 Bergeron-Findeisen theory. - 2 Coalescence theories. - 3 Solid precipitation. - F Precipitation types. - 1 'Convective type' precipitation. - 2 'Cyclonic type' precipitation. - 3 Orographic precipitation. - G Thunderstorms. - 1 Development. - 2 Cloud electrification and lightning. - 6 ATMOSPHERIC MOTION: PRINCIPLES. - A Laws of horizontal motion. - 1 The pressure-gradient force. - 2 The earth's rotational deflective (Coriolis) force. - 3 The geostrophic wind. - 4 The centripetal acceleration. - 5 Frictional forces and the planetary boundary layer. - B Divergence, vertical motion and vorticity. - 1 Divergence. - 2 Vertical motion. - 3 Vorticity. - C Local winds. - 1 Mountain and valley winds. - 2 Land and sea breezes. - 3 Winds due to topographic barriers. - 7 PLANETARY-SCALE MOTIONS IN THE ATMOSPHERE AND OCEAN. - A Variation of pressure and wind velocity with height. - 1 The vertical variation of pressure systems. - 2 Mean upper-air patterns. - 3 Upper wind conditions. - 4 Surface pressure conditions. - B The global wind belts. - 1 The trade winds. - 2 The equatorial westerlies. - 3 The mid-latitude (Ferrel) westerlies. - 4 The polar easterlies. - C The general circulation. - 1 Circulations in the vertical and horizontal planes. - 2 Variations in the circulation of the northern hemisphere. - a Zonal index variations. - b North Atlantic Oscillation. - D Ocean structure and circulation. - 1 Above the thermocline. - a Vertical. - b Horizontal. - 2 Deep ocean water interactions. - a Upwelling. - b Deep ocean circulation. - 3 The oceans and atmospheric regulation. - 8 NUMERICAL MODELS OF THE GENERAL CIRCULATION, CLIMATE AND WEATHER PREDICTION / T. N. Chase and R. G. Barry. - A Fundamentals of the GCM. - B Model simulations. - 1 GCMs. - 2 Simpler models. - 3 Regional models. - C Data sources for forecasting. - D Numerical weather prediction. - 1 Short- and medium-range forecasting. - 2 'Nowcasting'. - 3 Long-range outlooks. - 9 MID-LATITUDE SYNOPTIC AND MESOSCALE SYSTEMS. - A The airmass concept. - B Nature of the source area. - 1 Cold airmasses. - 2 Warm airmasses. - C Airmass modification. - 1 Mechanisms of modification. - a Thermodynamic changes. - b Dynamic changes. - 2 The results of modification: secondary airmasses. - a Cold air. - b Warm air. - 3 The age of the airmass. - D Frontogenesis. - 1 Frontal waves. - 2 The frontal-wave depression. - E Frontal characteristics. - 1 The warm front. - 2 The cold front. - 3 The occlusion. - 4 Frontal-wave families. - F Zones of wave development and frontogenesis. - G Surface/upper-air relationships and the formation of frontal cyclones. - H Non-frontal depressions. - 1 The lee cyclone. - 2 The thermal low. - 3 Polar air depressions. - 4 The cold low. - I Mesoscale convective systems. - 10 WEATHER AND CLIMATE IN MIDDLE AND HIGH LATITUDES. - A Europe. - 1 Pressure and wind conditions. - 2 Oceanicity and continentality. - 3 British airflow patterns and their climatic characteristics. - 4 Singularities and natural seasons. - 5 Synoptic anomalies. - 6 Topographic effects. - B North America. - 1 Pressure systems. - 2 The temperate west coast and Cordillera. - 3 Interior and eastern North America. - a Continental and oceanic influences. - b Warm and cold spells. - c Precipitation and the moisture balance. - C The subtropical margins. - 1 The semi-arid southwestern United States. - 2 The interior southeastern United States. - 3 The Mediterranean. - 4 North Africa. - 5 Australasia. - D High latitudes. - 1 The southern westerlies. - 2 The sub-Arctic. - 3 The polar regions. - a The Arctic. - b Antarctica. - 11 TROPICAL WEATHER AND CLIMATE. - A The intertropical convergence. - B Tropical disturbances. - 1 Wave disturbances. - 2 Cyclones. - a Hurricanes and typhoons. - b Other tropical disturbances. - 3 Tropical cloud clusters. - C The Asian monsoon. - 1 Winter. - 2 Spring. - 3 Early summer. - 4 Summer. - 5 Autumn. - D East Asian and Australian summer monsoons. - E Central and southern Africa. - 1 The African monsoon. - 2 Southern Africa. - F Amazonia. - G El Niño-Southern Oscillation (ENSO) events. - 1 The Pacific Ocean. - 2 Teleconnections. - H Other sources of climatic variations in the tropics. - 1 Cool ocean currents. - 2 Topographic effects. - 3 Diurnal variations. - I Forecasting tropical weather. - 1 Short- and extended-range forecasts. - 2 Long-range forecasts. - 12 BOUNDARY LAYER CLIMATES. - A Surface energy budgets. - B Non-vegetated natural surfaces. - 1 Rock and sand. - 2 Water. - 3 Snow and ice C Vegetated surfaces. - 1 Short green crops. - 2 Forests. - a Modification of energy transfers. - b Modification of airflow. - c Modification of the humidity environment. - d Modification of the thermal environment. - D Urban surfaces. - 1 Modification of atmospheric composition. - a Aerosols. - b Gases. - c Pollution distribution and impacts. - 2 Modification of the heat budget. - a Atmospheric composition. - b Urban surfaces. - c Human heat production. - d Heat islands. - 3 Modification of surface characteristics. - a Airflow. - b Moisture. - 4 Tropical urban climates. - 13 CLIMATE CHANGE. - A General considerations. - B Climate forcings and feedbacks. - 1 External forcing. - 2 Short-term forcing and feedback. - C The climatic record. - 1 The geological record. - 2 Late glacial and post-glacial conditions. - 3 The past 1000 years. - D Possible causes of recent climatic change. - 1 Circulation changes. - 2 Energy budgets. - 3 Anthropogenic factors. - E Model s
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  • 29
    Signatur: AWI G7-18-91974
    Materialart: Monographie ausleihbar
    Seiten: 38 Seiten , 1 Beilage
    Sprache: Englisch
    Anmerkung: Contents: Preface. - Abstracts (in the alphabetic order). - The natural environment and cryosphere of the Tatra Mountains by Bogdan Gądek. - IASC Working Group on Arctic Glaciology. - General programme.
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  • 30
    Monographie ausleihbar
    Monographie ausleihbar
    Stuttgart : Reader's Digest
    Signatur: AWI E3-21-94619
    Materialart: Monographie ausleihbar
    Seiten: XVIII, 479 Seiten , Illustrationen, Karten
    Ausgabe: Kurzfassung
    ISBN: 3899150716
    Serie: Vom Pol zum Äquator 162
    Originaltitel: Scott & Amundsen 〈dt.〉
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 31
    Monographie ausleihbar
    Monographie ausleihbar
    München : Bühn
    Signatur: AWI S6-16-90169
    Materialart: Monographie ausleihbar
    Seiten: 302 S. , Ill., graph. Darst.
    ISBN: 3932831217
    Sprache: Deutsch
    Anmerkung: [englischer, deutscher und französischer Text]
    Standort: AWI Lesesaal
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  • 32
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Bremerhaven : Alfred-Wegener-Institut
    Dazugehörige Bände
    Signatur: ZSP-994(2002/2003)
    In: Das AWI in den Jahren, 2002/2003
    Materialart: Schriftenreihen ausleihbar
    Seiten: 308 Seiten , Illustrationen
    ISSN: 1618-3703
    Serie: Das AWI in den Jahren 2002/2003
    Sprache: Deutsch , Englisch
    Anmerkung: Inhalt = Content 1. Vorwort = Introduction 2. Ausgewählte Forschungsthemen = Selected research topics Wer sind die POMORen? = Who are the POMORs? / Kirsten Tuschling, Heidemarie Kassens, Vladimir Troyan, Jörn Thiede, Gerold Wefer Die deutsch-französische Polarforschungsplattform auf Spitzbergen = The French – German polar research platform on Spitsbergen / Roland Neuber, AWI, Franck Delbart, IPEV Auswirkungen der Elbeflutwelle August 2002 auf Muscheln und Fische im Wattenmeer = Health effects of the Elbe flood August 2002 on blue mussel and flounder in the German Wadden Sea / Sonja Einsporn, Katja Broeg, Angela Köhler Sylter Algenfarm: Makroalgen als Nährstoff-Filter für Fischfarmen und neues Nahrungsmittel in Deutschland = Sylt Algal Farm: Marine macroalgae as nutrient filters for fish farms and as a new food resource for Germany / Klaus Lüning, Shaojun Pang, Carsten Pape, Petra Kadel Überleben unter hochantarktischen Bedingungen, Untersuchungen an Pectiniden = Making a living in high-Antarctic waters, a study in pectinids / Daniela Storch, Olaf Heilmayer, Thomas Brey, Christian Bock, Hans-O. Pörtner, Wolf Arntz Die „süßen“ kalten Quellen der Antarktis = Antarctica‘s cold freshwater sources / Hartmut H. Hellmer Eigenschaften von Eisteilchen und ihre Auswirkung auf die Wolkenstruktur = Attributes of ice particles and their effects on the cloud structure / Ulrike Wacker, Thorsten Reinhardt Wärme für das Nordpolarmeer = Warming the Arctic Ocean / Ursula Schauer, Eberhard Fahrbach, Gerd Rohardt Stratosphärischer Ozonabbau: Das Auf und Ab in der Arktis = Stratospheric ozone destruction: the ups and downs in the Arctic / Markus Rex, Peter von der Gathen Permafrost-Küsten der Arktis – Gefrorenes Land versinkt im Meer = Permafrost coasts of the Arctic – frozen land drowns in the Sea / Volker Rachold, Hans-Wolfgang Hubberten Umweltrekonstruktionen mit Bioindikatoren in den polaren Landgebieten = Fossil remains indicate paleoenvironments in the terrestrial Arctic / Andrei Andreev, Frank Kienast, Thomas Kumke Feuer und Eis am Pol = Fire and ice at the North Pole / Wilfried Jokat Die Polarflugzeuge als wissenschaftliche Messplattform = Polar aircraft as platforms for scientific measurements / Uwe Nixdorf Variabilität des Flusseintrags in die Arktis – Natürliche Klimaschwankungen? = Variability of freshwater discharge in the Arctic – natural climate change? / Rüdiger Stein Von Tiefseekorallen über Schlammvulkane in die arktische Tiefsee – ‚Victor 6000‘ an Bord der ‚Polarstern‘ = Via deep-water corals and mud volcanoes into the Arctic deep sea – ’Victor 6000’ onboard the RV ’Polarstern’ / Michael Klages, Thomas Soltwedel Nahrungsnetze – Das Helgoland Foodweb Projekt = The Helgoland Foodweb Project / Karen Wiltshire, Maarten Boersma, Gunnar Gerdts, Reibhard Saborowski, Antje Wichels Faunenveränderung bei Helgoland = Changes in the faunal composition at Helgoland / Heinz-Dieter Franke, Lars Gutow Der antarktische Krill, ein Schlüsselorganismus im Südozean = The Antarctic krill, a key organism in the Southern Ocean / Bettina Meyer Ein Engel mit außergewöhnlicher Lipidbiochemie = An angel with exceptional lipid biochemistry / Marco Böer, Martin Graeve, Gerhard Kattner 3. Forschung = Research 3.1 Klimasystem = 3.1 Climate system 3.2 Pelagische Ökosysteme = 3.2 Pelagic ecosystems 3.3 Benthische Ökosysteme = 3.3 Benthic ecosystems 3.4 Geosysteme = 3.4 Geosystem 3.5 Projektgruppen = 3.5 Project groups 4. Logistik und Expeditionen = Logistics and operational activities 5. Nationale und internationale Zusammenarbeit = National and international cooperation 6. Informationszentrum = Information centre 7. Presse- und Öffentlichkeitsarbeit = Public relation department 8. Personelle Situation und Haushaltsentwicklung = Personal structure and budget trends 9. Veröffentlichungen, Patente = Publications, patents Anhang = Annex I. Wissenschaftliche Veranstaltungen = I. Scientific events II. Abgeschlossene Examensarbeiten = II. Completed theses and dissertations , In deutscher und englischer Sprache
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  • 33
    Signatur: AWI A13-05-0016
    Beschreibung / Inhaltsverzeichnis: Finally, the generalized model is scrutinized in terms of its normal, adjoint, optimal and singular modes. It is found that the modes of the empirically modified model are more stable than the ones of the barotropic model. Also the modified barotropic optimal modes are more difficult to excite than their barotropic counterparts. These results are in accordance with previous studies that found that barotropic dynamics may not quantitatively describe LFV. The singular modes of the modified operator have very similar patterns but explain less variance than the barotropic ones. This is consistent with the difficulty in detecting optimal patterns in observations. Finally, we find that the modified barotropic operator is more normal than the classic barotropic one, and thus less variable.
    Materialart: Monographie ausleihbar
    Seiten: XII, 119 S. , Ill.
    Sprache: Englisch
    Anmerkung: Urbana, Ill., USA, Univ., Diss., 2003
    Standort: AWI Lesesaal
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  • 34
    Signatur: ZSP-320(B,95)
    In: Geologisches Jahrbuch : Reihe B, Regionale Geologie Ausland, H. 95
    In: Polar Issue, No. 8
    Materialart: Schriftenreihen ausleihbar
    Seiten: 235 S. , Ill., graph. Darst., Kt. , 24 cm
    ISBN: 3510959019
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 35
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge [u.a.] : Cambridge Univ. Press
    Signatur: AWI S2-18-91484
    Materialart: Monographie ausleihbar
    Seiten: XI, 269 S. , graph. Darst. , 26 cm
    Ausgabe: Transferred to digital printing 2009
    ISBN: 052181409X (hb) , 0521891086 (pb.)
    Sprache: Englisch
    Anmerkung: Contents: Preface. - 1. Introduction and data manipulation. - 1.1. Why ordination?. - 1.2. Terminology. - 1.3. Types of analyses. - 1.4. Response variables. - 1.5. Explanatory variables. - 1.6. Handling missing values in data. - 1.7. Importing data from spreadsheets - WCanoImp program. - 1.8. Transformation of species data. - 1.9. Transformation of explanatory variables. - 2. Experimental design. - 2.1. Completely randomized design. - 2.2. Randomized complete blocks. - 2.3. Latin square design. - 2.4. Most frequent errors - pseudoreplications. - 2.5. Combining more than one factor. - 2.6. Following the development of objects in time - repeated observations. - 2.7. Experimental and observational data. - 3. Basics of gradient analysis. - 3.1. Techniques of gradient analysis. - 3.2. Models of species response to environmental gradients. - 3.3. Estimating species optima by the weighted averaging method. - 3.4. Calibration. - 3.5. Ordination. - 3.6. Constrained ordination. - 3.7. Basic ordination techniques. - 3.8. Ordination diagrams. - 3.9. Two approaches. - 3.10. Testing significance of the relation with environmental variables. - 3.11. Monte Carlo permutation tests for the significance of regression. - 4. Using the Canoco for Windows 4.5 package. - 4.1. Overview of the package. - 4.2. Typical flow-chart of data analysis with Canoco for Windows. - 4.3. Deciding on the ordination method: unimodal or linear?. - 4.4. PCA or RDA ordination: centring and standardizing. - 4.5. DCA ordination: detrending. - 4.6. Scaling of ordination scores. - 4.7. Running CanoDraw for Windows 4.0. - 4.8. New analyses providing new views of our data sets. - 5. Constrained ordination and permutation tests. - 5.1. Linear multiple regression model. - 5.2. Constrained ordination model. - 5.3. RDA: constrained PCA. - 5.4. Monte Carlo permutation test: an introduction. - 5.5. Null hypothesis model. - 5.6. Test statistics. - 5.7. Spatial and temporal constraints. - 5.8. Split-plot constraints. - 5.9. Stepwise selection of the model. - 5.10. Variance partitioning procedure. - 6. Similarity measures. - 6.1. Similarity measures for presence-absence data. - 6.2. Similarity measures for quantitative data. - 6.3. Similarity of samples versus similarity of communities. - 6.4. Principal coordinates analysis. - 6.5. Non-metric multidimensional scaling. - 6.6. Constrained principal coordinates analysis (db-RDA). - 6.7. Mantel test. - 7. Classification methods. - 7.1. Sample data set. - 7.2. Non-hierarchical classification (K-means clustering). - 7.3. Hierarchical classifications. - 7.4. TWINSPAN. - 8. Regression methods . - 8.1. Regression models in general. - 8.2. General linear model: terms. - 8.3. Generalized linear models (GLM). - 8.4. Loess smoother. - 8.5. Generalized additive models (GAM). - 8.6. Classification and regression trees. - 8.7. Modelling species response curves with CanoDraw. - 9. Advanced use of ordination. - 9.1. Testing the significance of individual constrained ordination axes. - 9.2. Hierarchical analysis of community variation. - 9.3. Principal response curves (PRC) method. - 9.4. Linear discriminant analysis. - 10. Visualizing multivariate data. - 10.1. What we can infer from ordination diagrams: linear methods. - 10.2. What we can infer from ordination diagrams: unimodal methods. - 10.3. Visualizing ordination results with statistical models. - 10.4. Ordination diagnostics. - 10.5. t-value biplot interpretation. - 11. Case study 1: Variation in forest bird assemblages. - 11.1. Data manipulation. - 11.2. Deciding between linear and unimodal ordination. - 11.3. Indirect analysis: portraying variation in bird community. - 11.4. Direct gradient analysis: effect of altitude. - 11.5.Direct gradient analysis: additional effect of other habitat characteristics. - 12. Case study 2: Search for community composition patterns and their environmental correlates: vegetation of spring meadows. - 12.1. The unconstrained ordination. - 12.2. Constrained ordinations. - 12.3. Classification. - 12.4. Suggestions for additional analyses. - 13. Case study 3: Separating the effects of explanatory variables. - 13.1. Introduction. - 13.2. Data. - 13.3. Data analysis. - 14. Case study 4: Evaluation of experiments in randomized complete blocks. - 14.1. Introduction. - 14.2. Data. - 14.3. Data analysis. - 15. Case study 5: Analysis of repeated observations of species composition from a factorial experiment. - 15.1. Introduction. - 15.2. Experimental design. - 15.3. Sampling. - 15.4. Data analysis. - 15.5. Univariate analyses. - 15.6. Constrained ordinations. - 15.7. Further use of ordination results. - 15.8. Principal response curves. - 16. Case study 6: Hierarchical analysis of crayfish community variation. - 16.1. Data and design. - 16.2. Differences among sampling locations. - 16.3. Hierarchical decomposition'of community variation. - 17. Case study 7: Differentiating two species and their hybrids with discriminant analysis. - 17.1. Data. - 17.2. Stepwise selection of discriminating variables. - 17.3. Adjusting the discriminating variables. - 17.4. Displaying results. - Appendix A: Sample datasets and projects. - Appendix B: Vocabulary. - Appendix C: Overview of available software. - References. - Index.
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  • 36
    Signatur: AWI A13-19-92152
    In: HIRLAM technical report, No. 60
    Materialart: Schriftenreihen ausleihbar
    Seiten: 69 Seiten , Illustrationen
    Serie: HIRLAM technical report 60
    Sprache: Englisch
    Anmerkung: Contents: 1 Background. - 2 Processing overview. - 2.1 AAPP. - 2.2 BUFR and CMA. - 2.3 Cloud mask and thinning in HIRLAM 3D-VAR. - 2.4 Radiative transfer calculations. - 2.5 Data selection. - 3 Bias correction and error statistics. - 3.1 The need for bias correction. - 3.2 Bias correction method. - 3.3 Background errors in observation space. - 3.4 Estimation of observation error covariance statistics. - 3.4.1 Rotated channels. - 3.4.2 Estimation from analysis departures (DNMI). - 3.4.3 Non-diagonal cost contributions. - 3.4.4 Approach using comparison with background error (SMHI). - 4 Impact studies. - 4.1 Overview. - 4.2 The May 2001 impact study at DNMI. - 4.3 December 1999 SMHI experiment. - 4.3.1 Data coverage and model area. - 4.3.2 Verification. - 4.3.3 Results. - 4.3.4 The "French storm". - 4.4 December 2001 NOAA 16 impact study at DMI. - 4.5 January 2002 NOAA 16 impact study at DMI. - 5 Ongoing and future work. - 5.1 Overview. - 5.2 Use of observations over ice. - 5.3 Moisture channels. - 5.4 Future sensors. - 6 Conclusions and outlook for the future. - Acknowledgment. - References.
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  • 37
    Monographie ausleihbar
    Monographie ausleihbar
    Montréal & Kingston : McGill-Queen's University Press
    Signatur: AWI Bio-22-94779
    Materialart: Monographie ausleihbar
    Seiten: 97 Seiten , Illustrationen , 23 cm
    ISBN: 0-7735-2661-7
    Serie: Forest History Society issues series
    Sprache: Englisch
    Anmerkung: Contents Overview Introduction 1 The Canadian Forest 2 Early Forest Use 3 Industrialization of the Forests 4 The Rise of Forest Conservation 5 Sustainable Forest Management Conclusion Sources Further Reading Index
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  • 38
    Signatur: AWI G7-19-92930
    In: Glacier mass balance bulletin, No. 7
    Materialart: Schriftenreihen ausleihbar
    Seiten: 87 Seiten , Illustrationen
    Serie: Glacier mass balance bulletin 7
    Sprache: Englisch
    Anmerkung: CONTENTS 1. INTRODUCTION 2. SUMMARY DATA 2.1 SUMMARY TABLE (NET BALANCE, ELA, ELA0, AAR, AAR0) 2.2 CUMULATIVE SPECIFIC NET BALANCE GRAPHS 3. EXTENSIVE INFORMATION 3.1 WHITE (CANADA) 3.1.1 Topography and observational network 3.1.2 Net balance maps 1999/2000 and 2000/2001 3.1.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.1.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.2 PEYTO (CANADA) 3.2.1 Topography and observational network 3.2.2 Net balance maps 1999/2000 and 2000/2001 3.2.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.2.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.3 ZONGO (BOLIVIA) 3.3.1 Topography and observational network 3.3.2 Net balance maps 1999/2000 and 2000/2001 3.3.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.3.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.4 WALDEMARBREEN (NORWAY/SVALBARD) 3.4.1 Topography and observational network 3.4.2 Net balance maps 1999/2000 and 2000/2001 3.4.3 Net balance altitude (1999/2000 and 2000/2001) 3.4.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.5 NIGARDSBREEN (NORWAY) 3.5.1 Topography and observational network 3.5.2 Net balance maps 1999/2000 and 2000/2001 3.5.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.5.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.6 STORGLACIÄREN (SWEDEN) 3.6.1 Topography and observational network 3.6.2 Net balance maps 1999/2000 and 2000/2001 3.6.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.6.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.7 VERNAGTFERNER (AUSTRIA) 3.7.1 Topography and observational network 3.7.2 Net balance maps 1999/2000 and 2000/2001 3.7.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.7.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.8 DJANKUAT (RUSSIA) 57 3.8.1 Topography and observational network 3.8.2 Net balance map 2000/2001 3.8.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.8.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.9 TSENTRALNIY TUYUKSUYSKIY (KAZAKHSTAN) 3.9.1 Topography and observational network 3.9.2 Net balance maps 1999/2000 and 2000/2001 3.9.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.9.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.10 MALIYAKTRU (RUSSIA) 3.10.1 Topography and observational network 3.10.2 Net balance maps 1999/2000 and 2000/2001 3.10.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.10.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 3.11 URUMQIHE S. NO. 1 (CHINA) 3.11.1 Topography and observational network 3.11.2 Net balance maps 1999/2000 and 2000/2001 3.11.3 Net balance versus altitude (1999/2000 and 2000/2001) 3.11.4 Accumulation area ratio (AAR) and equilibrium line altitude (ELA) versus specific net balance for the whole observation period 4. FINAL REMARKS AND ACKNOWLEDGEMENTS 5. PRINCIPAL INVESTIGATORS AND NATIONAL CORRESPONDENTS 5.1 PRINCIPAL INVESTIGATORS 5.2 NATIONAL CORRESPONDENTS OF WGMS
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  • 39
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Norrköping : HIRLAM-6 Project, SMHI
    Dazugehörige Bände
    Signatur: AWI A13-19-92154
    In: HIRLAM newsletter, No. 43
    Materialart: Schriftenreihen ausleihbar
    Seiten: 207 Seiten , Illustrationen
    Serie: HIRLAM newsletter 43
    Sprache: Englisch
    Anmerkung: CONTENTS: Introduction and general report from All Staff Meeting 2003 / Per Undén. - Operational HIRLAM at DMI - Status and plans for 2003 / Kristian Mogensen. - The operational HIRLAM at the Finnish Meteorological Institute / Kalle Eerola. - Operational NWP suites at Meteo-France / Dominique Giard. - HIRLAM operational activities in Met Éireann / Ray McGrath. - Operational HIRLAM at met.no / Ole Vignes. - HIRLAM at INM. News and plans / Jose Antonio Garcia-Moya. - SMHI operational HIRLAM system / Lars Meuller. - Modelisation of background error statistics in ALADIN and ARPEGE / Dominique Giard and Loïk Berre. - Optimum interpolation analysis method for snow depth / Alberto Cansado and Beatriz Navascués. - Radiation in high-resolution mesoscale models - what can be done? / Hannu Savijärvi. - Testing the modified HIRLAM radiation scheme / Laura Rontu and Simo Järvenoja. - Enhanced formulation of convective cloud cover / Bent Hansen Sass. - Ideas about the water vapour saturation pressure / Carl Fortelius. - Recent physics modifications and results with KFB / Eric Bazile et al. - Comparison of two algorithms to simulate the effect of soil moisture freezing and thawing on the energy balance / J.A. Parodi, Ernesto Rodriguez and Beatriz Navascués. - Characteristics of CBR and STRACO versions / Sander Tijm. - Representing subgrid scale mixing under stable conditions: Importance for overall model synoptic development / Colin Jones, Geert Lenderink and Karl-Ivar Ivarsson. - Sensitivity and robustness of transparent boundary conditions / Aidan McDonald. - Re-arranging the HIRLAM boundary relaxation treatment / Aidan McDonald. - Testing of the MC2 boundary treatment in HIRLAM / Simo Järvenoja. - Experiences from pre-operational HIRLAM 5.1.4 tests at FMI / Simo Järvenoja. - A recent study on the initialization procedure in HIRLAM / Xiaohua Yang and Xiang-Yu Huang. - MLAM- MARS HIRLAM / Simo Järvenoja. - Forecasting snow with HIRLAM 5.2 / Viel Ødegaard. - The flood of Feb 1, 1953 and HIRLAM / Toon Moene. - HIRLAM verification scores, 1st quarter 2003 / Per Undén. - Reference system status / Gerard Cats.
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  • 40
    Signatur: AWI P7-18-91976
    Materialart: Monographie ausleihbar
    Seiten: 140 Seiten , Illustrationen
    Sprache: Englisch
    Anmerkung: Contents: Polar sciences and global environmental changes / Byong-Kwon Park. - The sun earth connection: thermodynamics of the terrestrial atmosphere during geo-effective events / R. J. Niciejewski and Y.-I. Won. - Observations of atmospheric waves in the high-latitude / Y.-I. Won, R. J. Niciejewski, P. Espy, J.-K. Chung and Bang Yong Lee. - Malaysian Antarctic Research Program / Nasaruddin Rahman, Salleh Mohd Nor and Azizan Abu Samah. - Compositional variation in pyrochlore from the Sokoli Phoscorite-Carbonatite complex, Kola Peninsula, Arctic / Mi Jung Lee, C. Terry Williams, Jong Ik Lee, and Yeadong Kim. - U-Th-Pb electron microprobe datings on the Rayner complex, East Antarctica / Yoichi Motoyoshi, Tomokazu Hokada and Kazuyuki Shiraishi. - Geochemical variation during hydrothermal alteration of basaltic andesite at Barton Peninsula, King George Island, Antarctica / Soon Do Hur, Jong Ik Lee and Jeong Hwang. - The paleocene-eocene volcanic succession in the Barton Peninsula, King George Island, Antarctica: Lithofacies, eruption styles and depositional processes / Seung Bum Kim, Young Kwan Shon and Moon Young Choe. - Holocene paleoclimate in Antarctic Lake Langer (King George Island) / B. K. Khim, K. Lee, H. I. Yoon and C. Y. Kang. - Holocene paleoceanography and paleoclimate of the West Spitsbergen Area, Euro-Arctic margin / Morten Hald, Hanne Ebbesen, Matthias Forwick, Sergei Korsun, Tore O. Vorren, Liza Khomenko, and Fred Godtliebsen. - Origins and paleoceanographic significance of layered diatom ooze interval from the Bransfield Strait in the Northern Antarctic Peninsula around 2500 yrs BP / Ho Il Yoon, Byong-Kwon Park, Yeadong Kim, Cheon Yun kang and Sung-Ho Kang. - A record of holocene environmental changes in terrestrial sedimentary deposits on King George Island, Antarctica / A. Tatur, R. del Valle, A. Barczuk, J. Martinez-Macchiavello. - Geochemistry of soils of King George Island, South Shetland Islands, West Antarctica: Implications for pedogenesis in cold polar regions / Yong Il Lee, Hyoun Soo Lim, and Ho Il Yoon. - Seafloor structure around the epicenter of the Great Antarctic Plate earthquake / Yoshifumi Nogi and Kin-ichiro Koizumi. - Multidisciplinary surveys by 'structure and evolution of the East Antarctic Lithosphere': SEAL-2000, -2002 / M. Kanao, H. Miyamachi, S. Toda, H. Murakami, T. Tsutsui, T. Matsushima, M. Takada, A. Watanabe, M. Yamashita, K. Yoshii, K. Kaminuma, and SEAL Geotransect Group. - Local seismic activity around Syowa Station, East Antarctica / Katsutada Kaminuma and Masaki Kanao. - Morphological characteristics of the intersection between Phoenix Ridge and the Hero Fracture Zone / Kyu Jung Kim, Young Keun Jin, Sang Heon Nam, Joo Han Lee and Yeadong Kim. - Visual observation experiments to investigate the formation processes of globular gas hydrate / H. Shoji. - Gas hydrate BSR-derived heat flow variation on the South Shetland Continental Margin, Antarctic Peninsula / Young Keun Jin, Sang Heon Nam, Yeadong Kim, Kyu Jung Kim and Joo Han Lee. - Introduction to ice core drilling program on Amery Ice Shelf in the 2002/2003 Antarctic summer season / Yuansheng Li, Dejun Tan, Zengdi Pan, Zhaoqian Dong, Bo Sun and Jiahong Wen. - 724 M deep ice core from Akademii Nauk Ice Cap Severnaya Zemlya (Russian Arctic) - Electrical conductivity measurements and isotopic record / D. Fritzsche, R. Schütt, H. Meyer, H. Miller, and F. Wilhelms. - Introduction of the Chinese Polar Cryospheric Database System (CPCDS) / Xiang Qin, Dahe Qin and Yongjian Ding. - Natural variations in lead, cadmium, copper and zinc concentrations and their sources in Vostok Antarctic Ice from 65,000 to 240,000 years BP / Sungmin Hong, Kang Hyun Lee, Claude F. Boutron, Christophe P. Ferrari, Jean Robert Petit, Carlo Barbante, Kevin Rosman, Vladimir Y. Lipenkov. - Fluctuation of ice sheet elevation in East Antarctica since the late Pliocene / Xiaohan Liu, Ping Kong, Feixin Huang, Xiaoli Li, and Aimin Fang. - Variations of total ozone amount and erythermal ultraviolet radiation at King Sejong Station in West Antarctica / Bang Yong Lee, Hi-Ku Cho, Yun-Gon Lee and Young-In Won. - Variability of regional atmospheric circulation related with recent warming in the Antarctic Peninsula / Jeong-Soon Lee, Tae-Yong Kwon, Bang-Yong Lee, Ho Il Yoon and Jeong-Woo Kim. - The surface UV-A and erythermal UV-B radiation changes at King Sejong Station of West Antarctica / Kyu-Tae Lee, Joon-Bum Jee, Won-Hak Lee, Youn-Joung Kim, Bang Yong Lee, and Young-In Won. - Climatological characteristics of the polar ionosphere based on the Sondrestrom and Chatanika incoherent scatter radar measurements / Young-Sil Kwak and Byung-Ho Ahn. - Cloudy band and air inclusions observed in deep ice core samples from GRIP, Greenland / Kimiko Shimohara, Hitoshi Shoji and Sepp Kipfstuhl. - Geochemical trends and Milankovitch cycles within sediment from the North Atlantic Ocean / Sangmin Hyun, Naokazu Ahagon and Ho Il Yoon. - Oceanographic mechanism of regional warming in the Antarctic Peninsula / Kyu-Cheul Yoo, Ho Il Yoon, Jae-Kyung Oh, Tae-Yong Kwon and Cheon Yun Kang. - East Asian Monsoon variation during the late pleistocene to holocene: paleoclimate changes indicated by proxy records from Jeju Island, Korea / Seung Hyoun Lee, Yong Il Lee, Ho Il Yoon and Cheon Yun Kang. - Occurrence of vivianite in late pleistocene lacustrine sediments at Sogwipo, Jeju Island, Korea / Seung Hyoun Lee, Yong Il Lee, Ho Il Yoon, Cheon Yun Kang and Yaedong Kim. - Microfabric analysis of laminated diatom ooze in the holocene sediments from the eastern Bransfield Strait, Antarctic Peninsula / Jang Jun Bahk, Ho Il Yoon, Yeadong Kim, Cheon Yun Kang and Sung Ho Bae. - Late Quaternary paleoenvironment of the Saint Anna Trough, Arcitc Russia / Jae Il Lee, Yeadong Kim and Ho Il Yoon. - Formation and dissociation processes of gas hydrates composed of methane and carbon dioxide below the ice point / A. Hachikubo, K. Yamada, T. Miura, K. Hyakutake, K. Abe and H. Shoji. - Visual observations of tubular gas hydrate formation in a pressure cell with water and seafloor sediment / K. Hyakutake, O. Kitamura, S. Kataoka, A. Hachikubo, H. Shoji and L. Mazurenko. - Formation processes of massive gas hydrate in a pressure cell with water-saturated sediment conditions / O. Kitamura, S. Kataoka, K. Hyakutake, A. Hachikubo and H. Shoji. - Phase equilibrium studies on mixed gas hydrates composed of methane and carbon dioxide below the ice point / T. Miura, A. Hachikubo, K. Hyakutake, K. Abe and H. Shoji. - CP-MAS 13C-NMR study on the crystallographic structure of natural gas hydrate in the bottom of the Okhotsk Sea and Lake Baikal / M. Kida, H. Sakagami, H. Minami, Y. Numokawa, N. Takahashi, T. Matveeva, H. Shoji, S. Takeya, Y. Kamata, T. Ebinuma, H. Narita, V. Soloviev, K. Wallmann, N. Biebow, A. Obzhirov, A. Salomatin, J. Poort, O. Khlystov and M. Grachev. - Some features of gas hydrates in the sea of Okhotsk / T. Matveeva, V. Soloviev, K. Wallmann, A. Obzhirov, N. Biebow, J. Poort, A. Salomatin and H. Shoji. - High-resolution echo facies analysis of glacial-marine deposits in the Bransfield Basin, Antarctica / S. H. Yoon, H. I. Yoon and J. Howe. - Characteristics of Beach sands, King George Island, West Antarctica / Tae Jin Choi, Yong Il Lee and Ho Il Yoon. - Transition from debris flow to hyperconcentrated flow in a submarine channel (the Cretaceous Cerro Toro Formation, Southern Chile) / Y. K. Sohn, M. Y. Choe, and H. R. Jo. - Chemical weathering of glacial debris and volcanic ash in King George Island, Antarctica / Gi Young Jeong and Bong Ho Lee. - The cenozoic sedimentary records found in the Grove Mountains, East Antarctica and their climatic implications / Aimin Fang, Xiaohan Liu, Xiaoli Li, Jong Ik Lee, Yitai Ju and Feixin Huang. - The pollen assemblages found in the cenozoic sedimentary rocks in Grove Mountains, East Antarctica / Aimin Fang, Xiaohan Liu, Xiaoli Li, Yitai Ju and Weimin W
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  • 41
    Dissertationen
    Dissertationen
    Bergen : Department of Earth Science, University of Bergen
    Signatur: AWI G7-19-92377
    Materialart: Dissertationen
    Seiten: 1 Band (verschiedene Seitenzählungen) , Illustrationen
    ISBN: 82-92220-22-04
    Sprache: Englisch
    Anmerkung: Enthält 4 Zeitschriftenartikel , Dissertation, University of Bergen, 2003 , Contents: Introduction Paper I: Weichselian stratigraphy and glaciotectonic deformation along the lower Pechora River, Arctic Russia / Henriksen, M., Mangerud, J., Maslenikova, O., Matiouchkov, A. and Tveranger, J. Paper II: Lake stratigraphy implies an 80 000 yr delayed melting of buried dead ice in northern Russia / Henriksen, M., Mangerud, J., Matiouchkov, A., Paus, A. and Svendsen, J. I. Paper III: Late Pleistocene record from Lake Yamozero, Timian Ridge, northern Russia / Henriksen, M., Mangerud, J., Paus, A. and Svendsen, J. I. Paper IV: Ice-dammed lakes and the rerouting of the drainage of Northern Eurasia during the last glaciation / Mangerud, J., Jakobsson, M., Alexanderson, H. [und 11 weitere]
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  • 42
    Signatur: AWI Bio-21-94353
    Materialart: Monographie ausleihbar
    Seiten: 639 Seiten , Illustrationen
    ISBN: 3906166082
    Serie: Diatom monographs 4
    Sprache: Englisch
    Anmerkung: Contents Introduction Taxonomic classification adopted and floristic list References Nomenclatural proposals Index of taxa
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  • 43
    Monographie ausleihbar
    Monographie ausleihbar
    Ambleside : Freshwater Biological Assoc.
    Dazugehörige Bände
    Signatur: AWI Bio-05-0077
    In: Special publication / Freshwater Biological Association, 12
    In: Soil Biodiversity Programme research report, No. 4
    Materialart: Monographie ausleihbar
    Seiten: 40 S.
    ISBN: 090038669X
    Serie: Special publication / Freshwater Biological Association 12
    Sprache: Englisch
    Anmerkung: Contents: Introduction. - Testate amoebae. - Reproduction. - Locomotion and food capture. - Food. - Habitat. - Importance and role of testates in soil. - A note on the use of the identification guide. - References and selected bibliography. - Acknowledgements. - List of Testate amoebae species and numbers (1 to 90) used in the illustrated identification guide. - Illustrated guide to Testate Amoebae. - Index to Genera and Species.
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  • 44
    Signatur: AWI A1-03-0001(4)
    In: Encyclopedia of atmospheric sciences, Volume 4
    Materialart: Monographie Präsenzbestand
    Seiten: XLII, Seiten 1407-1824 , Illustrationen
    ISBN: 0122270940 , 0-12-227090-8
    Sprache: Englisch
    Anmerkung: Contents Volume 4 NOCTILUCENT CLOUDS / G.E. Thomas NORTH ATLANTIC AND ARCTIC OSCILLATION (See CLIMATE VARIABILITY: North Atlantic and Arctic Oscillation) NUMERICAL MODELS Chemistry Models / M.P. Chipperfield Methods / J. Thuburn OBSERVATION PLATFORMS Balloons / J.-P. Pommereau Buoys / J.M. Hemsley Kites / B.B. Balsley Rockets / M.F. Larsen OBSERVATIONS FOR CHEMISTRY (IN SITU) Chemiluminescent Techniques / C.A. Cantrell Gas Chromatography / A.C. Lewis Ozone Sondes / H.G.J. Smit Particles / T. Deshler Resonance Fluorescence / L.M. Avallone Water Vapor Sondes / E. Weinstock, E. Hintsa OBSERVATIONS FOR CHEMISTRY (REMOTE SENSING) IR/FIR / H. Fischer, F. Hase Lidar / G- Vaughan Microwave / J. Waters OCEAN CIRCULATION General Processes / N.C. Wells Surface-Wind-Driven Circulation / P. Bogden, C.A. Edwards Thermohaline Circulation / J.R. Toggweiler, R.M..Key Water Types and Water Masses / W.J. Emery OPERATIONAL METEOROLOGY / J.V. Cortinas Jr, W. Blier OPTICS, ATMOSPHERIC Airglow Instrumentation / M. Conde Optical Phenomena / S.D. Gedzelman Optical Remote Sensing Instruments / G.G. Shepherd OROGRAPHIC EFFECTS Lee Cyclogenesis / C. Schär Mountain Waves and Stratospheric Chemistry / K.S. Carslaw OZONE (See also SATELLITE REMOTE SENSING: TOMS Ozone) OZONE Ozone as a UV Filter / J.E. Frederick Ozone Depletion / J.A. Pyle Ozone Depletion Potentials / D.J. Wuebbles Photochemistry of Ozone / A.R. Ravishankara Role in Climate / P. Forster Surface Ozone (Human Health) / M. Lippmann Surface Ozone Effects on Vegetation / M.R. Ashmore PALEOCLIMATOLOGY Ice Cores / E.J. Steig Varves / A. Weinheimer, F. Biondi PALMER DROUGHT INDEX / L.C. Nkemdirim PARAMETERIZATION OF PHYSICAL PROCESSES Clouds / C. Jakob, M. Miller Gravity Wave Fluxes / M.J. Alexander Turbulence and Mixing / A. Beljaars PERMAFROST / T.E. Osterkamp, C.R. Burn PLANETARY ATMOSPHERES (See also EVOLUTION OF ATMOSPHERIC OXYGEN; EVOLUTION OF EARTH'S ATMOSPHERE) PLANETARY ATMOSPHERES Jupiter and the Outer Planets / A.P. Showman Mars / R.M. Haberle Venus / P.J. Gierasch, Y.L. Yung POLAR LOWS / I.A. Renfrew POLAR THERMOSPHERE / A.G. Burns, T.L. Killeen PREDICTABILITY AND CHAOS / L.A. Smith QUASI-GEOSTROPHIC THEORY / H.C. Davies, H. Wernli RADAR Cloud Radar / T. Uttal Doppler Radar / R.J. Doviak, M.E. Frazier Doviak Incoherent Scatter Radar / M.P. Sulzer Meteor Radar / N.J. Mitchell
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  • 45
    Monographie ausleihbar
    Monographie ausleihbar
    Oxford : Oxford University Press
    Signatur: M 03.0349 ; AWI G10-04-0093
    Materialart: Monographie ausleihbar
    Seiten: xxii, 571 Seiten , Illustrationen
    ISBN: 0198233841
    Serie: The oxford regional environments series [3]
    Klassifikation:
    Regionale Geologie
    Sprache: Englisch
    Anmerkung: Contents: List of Figures. - List of Plates. - List of Tables. - List of Contributors. - 1. Tectonics and geology / Nikolay Koronovsky. - 2. Climatic change and the development of landscapes / Andrey Velichko and Irina Spasskaya. - 3. Climate at the present and in the historical past / Maria Shahgedanova. - 4. Soils / Igor Zamotaev. - 5. Rivers, lakes, inland seas, and wetlands / Nikolay Koronkevich. - 6. Permafrost / Nelly Tumel. - 7. Biodiversity and productivity of ecosystems / Roman Zlotin. - 8. The arctic environments / Maria Shahgedanova and Mikhail Kuznetsov. - 9. Boreal forests / Arkady Tishkov. - 10. Mixed and deciduous forests / Leonid Serebryanny. - 11. Steppe and forest-steppe / Alexander Chibilyov. - 12. Arid environments / Elena Lioubimtseva. - 13. The mountains of Northern Russia / Maria Shahgedanova, Veniamin Perov, and Yury Mudrov. - 14. The mountains of Southern Siberia / Maria Shahgedanova, Nikolay Mikhailov, Sergey Larin, and Aleksandr Bredikhin. - 15. The Caucasus / Natalya Volodicheva. - 16. The mountains of Central Asia and Kazakhstan / Irina Merzlyakova. - 17. Lake Baikal / Anson Mackay, Roger Flower, and Liba Granina. - 18. The Far East / Andrey Ivanov. - 19. Radioactive contamination / Philip R. Pryde. - 20. Environmental impact of oil and gas development / Gregory Vilchek. - 21. Air pollution / Maria Shahgedanova. - 22. The Aral Sea / Nick Middleton. - 23. Deforestation and degradation of forests / Leonid Serebryanny and Igor Zamotaev. - 24. Nature protection and conservation / Arkady Tishkov. - List of plant names in Latin and English. - Index.
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  • 46
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Dazugehörige Bände
    Signatur: ZS-090(462) ; ZSP-168-462
    In: Berichte zur Polar- und Meeresforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: IV, 120 S.
    ISSN: 1618-3193
    Serie: Berichte zur Polar- und Meeresforschung 462
    Klassifikation:
    Ozeanographie
    Sprache: Englisch
    Standort: Kompaktmagazin unten
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  • 47
    Signatur: ZSP-553-18
    In: Meddelelser om Grønland
    Materialart: Monographie ausleihbar
    Seiten: 24 S.
    ISBN: 8717055644
    ISSN: 0106-1046
    Serie: Meddelelser om Grønland : Geoscience 18
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 48
    Monographie ausleihbar
    Monographie ausleihbar
    Kingston : Antarctic Division
    Signatur: AWI P3-89-0313
    Materialart: Monographie ausleihbar
    Seiten: 140 Seiten , Illustrationen
    Ausgabe: third edition
    ISBN: 0642117837
    Sprache: Englisch
    Anmerkung: Contents INTRODUCTION ACKNOWLEDGMENTS 1. GOING OUT? requirements to be met, minimum equipment, field trips 2. STATIONS AND BASES Macquarie Island, Commonwealth Bay, Casey, Edgeworth David, Davis, Law, Mawson, Heard Island 3. TRAVEL IN ANTARCTICA blizzards, whiteout, revasses, sea ice hazards and emergency 4. LIGHT-WEIGHT TRAVEL IN ANTARCTICA walking, skiing, manhauling, dog sledging 5. MOTORISED TOBOGGANS operation, sledges 6. HEAVY VEHICLE TRAVEL IN ANTARCTICA planning, train methods, navigating, extracting crevassed vehicles, Hagglunds on sea ice 7. AIRCRAFT TRAVEL safety, loading, flying, ground-to-air signals, marshalling, forced landings 8. SMALL BOAT TRAVEL safety, minimum equipment, emergency action 9. CLOTHING AND FIELD EQUIPMENT wearing clothing properly, knot tying, slings, harnesses, karabiners, jumars, anchors, ice axes, crampons, packs, sleeping gear 10. SNOW AND ICE TECHNIQUES step-cutting, descending, self-arresting, roping up for climbing, belays, abseiling, roping up for glacier travel, extraction from crevasses, rescue stretcher use 10. SHELTER tent erection, Apple huts, primus, tilley lamp, emergency shelters, bivouac for a lone person 12. FIELD RATIONS packs, cooking, emergency food 13. NAVIGATION maps, magnetic compass, magnetic variation, bearings, locating south at night, locating north, vehicle compass, trail marking 14. RADIO COMMUNICATIONS VHF channels, VHF repeater, VHF hand-helds and repairs, vehicle VHF, HF frequencies, HF radios, HF antennae, EPIRBs, PIRBs, Radio Box, Selcal, callsigns, schedules, Morse, to ships and aircraft, distress and urgency calls 15. EMERGENCY PROCEDURES AND SEARCH AND RESCUE priorities, lost individual, lost party, searchmasters, SAR phases, search techniques, location by dipole aerial, radio failure on Macquarie Island 16. ENVIRONMENT PROTECTION Antarctic Treaty and acts, SPAs, SSSis, offences, Heard and McDonald Islands, Macquarie Island, Southern Ocean APPENDIX I. Field camp equipment list APPENDIX II. Distances, weights and volumes
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  • 49
    Signatur: ZSP-553-19
    In: Meddelelser om Grønland
    Materialart: Monographie ausleihbar
    Seiten: 52 S. : Ill., graph. Darst
    ISBN: 8717055628
    ISSN: 0106-1046
    Serie: Meddelelser om Grønland : Geoscience 19
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 50
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hannover : Schweizerbart
    Dazugehörige Bände
    Signatur: SR 90.0068(37) ; SR 90.0068(37) 2. Ex. ; ZSP-320(E,37)
    In: Geologisches Jahrbuch
    Materialart: Schriftenreihen ausleihbar
    Seiten: 54 S.
    Serie: Geologisches Jahrbuch : Reihe E 37
    Sprache: Englisch
    Standort: Kompaktmagazin unten
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: GFZ Bibliothek
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  • 51
    Signatur: SR 90.0916(61) ; AWI G6-18-42972
    In: Sonderveröffentlichungen des Instituts der Universität Köln, Nr. 61
    Materialart: Schriftenreihen ausleihbar
    Seiten: 105, 13 S. : Ill., graph. Darst., Kt.
    Serie: Sonderveröffentlichungen / Geologisches Institut der Universität zu Köln 61
    Sprache: Deutsch
    Anmerkung: Zugl.: Köln, Univ., Diss., 1986 , Inhaltsverzeichnis: Abstract, Kurzfassung. - 1. Untersuchungsraum. - 2. Lage der Profile. - 3. Methoden. - 4. Forschungsgeschichte. - 5. Die Schichtenfolge im Helikon-Gebirge. - 6, Die Domvrena-Schichten. - 7. Perdikovouno-Schichten. - 7.1 Profil am Anadematisma. - 7.2 Profil am Perdikovouno. - 7.3 Profil am Korombili. - 7.4 Stratigraphie der Perdikovouno-Schichten. - 7.5 Ablagerungsraum der Perdikovouno-Schichten. - 7.6 Isotopenverhältnisse. - 7.6.1 Profil am Anadematisma. - 7.6.2 Profil am Perdikovouno. - 7.6.3 Profil am Korombili. - 7.7 Diskussion. - 8. Diakopi-Schichten. - 8.1 Profil am Diakopi. - 8.2 Profil am Süßwasserkanal bei Domvrena. - 8.3 Profil am Steinbruch von Domvrena. - 8.4 Stratigraphie der Diakopi-Schichten. - 8.5 Ablagerungsraum der Diakopi-Schichten. - 8.6 Isotopenverhältnisse. - 8.6.1 Profil am Diakopi. - 8.6.2 Profil am Süßwasserkanal bei Domvrena. - 8.6.3 Profil am Steinbruch von Domvrena. - 8.7 Diskussion. - 9. Vounalakia-Schichten. - 9.1 Profil am Vounalakia. - 9.2 Profil an der Tomatenfabrik. - 9.3 Stratigraphie der Vounalakia-Schichten. - 9.4 Ablagerungsraum der Vounalakia-Schichten. - 9.5 Isotopenverhältnisse. - 9.6 Diskussion. - 10. Makariotissa-Schichten 10.1 Profil am Süßwasserkanal bei Domvrena. - 10.2 Profil bei Makariotissa. - 10.3 Radiolarien aus dem Profil von Makariotissa. - 10.4 Profil an der Sphinx. - 10.5 Stratigraphie der Makariotissa-Schichten. - 10.6 Ablagerungsraum der Makariotissa Schichten. - 10.7 Isotopenverhältnisse. - 10.7.1 Profil am Süßwasserkanal bei Domvrena. - 10.7.2 Profil bei Makariotissa. - 10.7.3 Kalksteine mit Kieselknollen. - 10.7.4 Profil an der Sphinx. - 10.8 Diskussion. - 11. Zusammenfassung der Ergebnisse. - 11.1 Profilaufbau. - 11.2 Isotopenkurven. - 11.3 Isotopenverhältnisse. - 12. Fossilienliste. - 13. Isotopendaten. - 14. Literatur. - Danksagung. , Zsfassung in engl. Sprache
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  • 52
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Leipzig : Deutscher Verlag für Grundstoffindustrie
    Dazugehörige Bände
    Signatur: SR 99.0015(409) ; ZSP-292-409
    In: Freiberger Forschungshefte, 409
    Materialart: Schriftenreihen ausleihbar
    Seiten: 54 Seiten , Illustrationen
    Ausgabe: 1. Auflage
    ISBN: 3-342-00920-9
    ISSN: 0071-9409
    Serie: Freiberger Forschungshefte : C 409 : Geowissenschaften - Geologie
    Sprache: Deutsch
    Anmerkung: Inhaltsverzeichnis Annotation (Annotation, Annotacija) 1. Einführung 1.1. Politische Grundlagen 1.2. Rohstoffspekulationen 2. Grundzüge der Tektonik und Mineragenie der Antarktis 2.1. Geotektonische Epochen 2.2. Tektonisch-minerogenetische Rayonierung 3. Vorkommen fester mineralischer Rohstoffe 3.1. Metallische Rohstoffe 3.1.1. Schwarzmetalle 3.1.1.1. Eisen 3.1.1.2. Mangan 3.1.1.3. Chrom, Nickel, Kobalt, Vanadium, Titan 3.1.1.4. Molybdän, Wolfram 3.1.2. Buntmetalle 3.1.2.1. Kupfer 3.1.2.2. Blei, Zink 3.1.2.3. Zinn 3.1.3. Edelmetalle (Silber, Gold, Platin) 3.1.4. Sonstige Metalle 3.2. Nichtmetallische Rohstoffe 3.2.1. Edel- und Schmucksteine 3.2.2. Glimmer 3.2.3. Feuerfestminerale 3.2.4. Phosphat 3.2.5. Fluorit, Baryt 3.2.6. Graphit. 3.2.7. Schwefel 4. Kohlenvorkommen 5. Kohlenwasserstoff-Vorkommen 6. Geothermische Energie 7. Süßwasser(Eis)-Vorräte 8. Schlußfolgerungen 9. Danksagung . 10. Zusammenfassung (Summary, Rezjume) Literaturverzeichnis Tabellen 1 bis 8
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  • 53
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Berlin : Nationalkomitee für Geodäsie und Geophysik bei der Akademie der Wissenschaften der DDR
    Dazugehörige Bände
    Signatur: Q 2453(II,28) ; MOP Per 581(2/28) ; ZSP-319/B-28
    In: Geodätische und geophysikalische Veröffentlichungen : Reihe 2, Solarterrestrische Beziehungen und Physik der Atmosphäre, Heft 28
    Materialart: Schriftenreihen ausleihbar
    Seiten: 136 Seiten , Illustrationen
    Serie: Geodätische und geophysikalische Veröffentlichungen : Reihe 2, Solarterrestrische Beziehungen und Physik der Atmosphäre 28
    Sprache: Englisch
    Anmerkung: Content: Improvement of the coulometric measurement of ozone in the near-ground layer of the atmosphere / W. Warmbt. - Some experimental data on the variability of the ozone density at different level of the lowest atmosphere / A. G. Amiranashvili ; T. G. Gzirishvili ; A. I. Kartsivadse ; A. M. Okudjava ; D. F. Kharchilava ; K. H. Grasnick. - Report on the intercomparison of instruments measuring ozone near the ground at the Hohenpeissenberg Observatory / W. Warmbt. - Some results of ozone-sonde ascents in the CSSR / J. Picha. - A system of monitoring the observation and calibration qualities of Dobson spectrophotometerswithin the Regional Association VI / P. Plessing. - Vertical ozone distribution over Lindenberg (52.22°N, 14.12°E), 1975 - 1982 / U. Feister ; P. Plessing ; K. H. Grasnick. - Correlations of the total ozone with thermal and dynamic processes in the atmosphere / M. Frimescu ; L. Manea. - Numerical simulation of seasonal-latitudinal and 11-year variations in ozonosphere composition based on the two-dimensional photochemical model / I. G. Dyominov ; A. M. Zadorozhny. - Ozone content variation over central Europe and stratospheric dynamics in late winter / G. Entzian ; K. H. Grasnick. - Long-term ozone variation / G. Entzian ; K. H. Grasnick.
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  • 54
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Leipzig : VEB Deutscher Verlag für Grundstoffindustrie
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    Signatur: SR 99.0015(418) ; ZSP-292-418
    In: Freiberger Forschungshefte, 418
    Materialart: Schriftenreihen ausleihbar
    Seiten: 75 Seiten , Illustrationen, Diagramme, Karten
    Ausgabe: 1. Auflage
    ISBN: 3-342-00930-6
    ISSN: 0071-9409
    Serie: Freiberger Forschungshefte : C 418 : Geowissenschaften - Geologie
    Sprache: Deutsch
    Anmerkung: Inhaltsverzeichnis Annotation (Annotation, Annotacija) 1. Einleitung 2. Tektonische Rayonierung Antarktikas 2. I. Der Ostantarktische Kraton (1) 2.1.1. Zentraler Geoblock (1.1.) 2.1.1.1. Enderby Land-Block (1.1.1) 2.1.1.2. Dronning Maud Land-Block (1.1.2) 2.1.1.3. Prince Charles Mountains-Block (1.1.3) 2. 1.2. Östlicher Geoblock (1.2) 2.1.2.1. Vestfold Block (1.2.1) 2.1.2.2. Wilkes Land-Block (1.2.2) 2. 1.2.3. Victoria Land-Block (1.2.3) 2.1.3. Westlicher Geoblock (1.3) 2.1.3.1. Maudheim-Block (1.3.1) 2.1.3.2. Shekleton Range-Block (1.3.2) 2.1.3.3. Thiel Mountains-Block (1.3.3) 2.2. Die jungproterozoisch-altpaläozoische Mobilzone der Transantarctic Mountains (2) 2.2.1. Südlicher Block (2.1) 2.2.2. Nördlicher Block (2.2) 2.2.3. Admirality Mountains-Block (2.3) 2.3. Die jungproterozoisch-paläozoische Mobilzonen der Pensacola und Ellsworth Mountains (3) 2.3.1. Pensacola Mountains-Block (3.1) 2.3.2. Ellsworth Mountains-Block (3.2) 2.4. Die paläozoisch-mesozoische Mobilzone Westantarktikas (4) 2.4.1. Marie Byrd Land-Block (4.1) 2.4.2. Thurston Island/Eights Coast-Block ( 4.2) 2.4.3. Antarctic Peninsula-Block (4.3) 2.5. Die jungen Sedimentbecken der Westantarktis (5) 2.5.1. Weddell Sea-Becken (5.1) 2.5.2. Byrd-Senke (5.2) 2.5.3. Ross Sea-Becken (5.3) 3. Minerogenetische Entwicklung Antarktikas 3. I. Archaische minerogenetische Hauptepoche ( 〉 2,6 Ga) 3.2. Proterozoische minerogenetische Hauptepoche (ca. 2,6 bisca. 0,8 Ga) 3.2.1. Unterproterozoische minerogenetische Epoche (ca. 2,6 bis ca. 2,0 Ga) 3.2.2. Mittel- bis oberproterozoische minerogenetische Epoche (ca. 2,0 bis ca. 0,8 Ga) 3.3. Spätriphäisch-phanerozoische minerogenetische Hauptepoche ( 〈0,8 Ga) 3.3.1. Spätriphäisch-altpaläozoische minerogenetische Epoche (ca. 0,8 Ga bis ca. 450 Mal 3.3.2. Paläozoisch-frühmesozoische minerogenetische Epoche (ca. 450 Ma bis ca. 150 M;l) 3.3.3. Mesozoisch-känozoische minerogenetische Epoche (ab. ca. 190 Ma) 4. Minerogenetische Einheiten Antarktikas 4.1. Archaische minerogenetische Einheiten 4.1.1. Archaische hochmetamorphe Areale 4.1.2. Archaische Grünstein-Granit-Gürtel 4.2. Proterozoische minerogenetische Provinzen . 4.2.1. Tafeldeckgebirgskomplexe 4.2.2. Aktivierte Grundgebirgseinheiten 4.2.3. Intrakontinentale mobile Gürtel 4.3. Riphäisch-phanerozoische minerogenetische Einheiten 4.3.1. Tafeldeckgebirgs-Provinzen 4.3.2. Aktivierte Grundgebirgseinheiten 4.3.2.1. Provinzen spätriphäisch-altpaläozoischer Aktivierung 4.3.2.2. Provinzen mesozoischer Aktivierung 4.3.2.3. Provinzen känozoischer Aktivierung 4.3.3. Intrakontinentale Tröge und Senken 4.3.3.1. Spätriphäisch-altpaläozoische Tröge 4.3.3.2. Intrakontinentales Ellsworth-Orogen 4.3.3.3. Tafelsenken des Victoria und des Wilkes Lands 4.3.3.4. Minerogenetische Provinzen junger Rift- und Spaltenzonen 4.3.3.4.1. Transantarktische Riftzone 4.3.3.4.2. Lambert Glacier-Riftzone des paläozoischemesozoischen Plattenrandes 4.3.3.4.3. Brainsfield-Riftzone 4.3.4. Passive Plattenränder 4.3.5. Aktive Plattenränder 4.3.5.1. Minerogenetische Provinzen des spätriphäisch-frühpaläozoischen Plattenrandes 4.3.5.2. Minerogenetische Provinzen des mittelpaläozoischen Plattenrandes 4.3.5.3. Minerogenetische Provinzen des paläozoisch-mesozoischen Plattenrandes 4.3.5.4. Minerogenetische Provinzen des meso-känozoischen Plattenrandes 5.Zusammenfassung. Abstract, Rezjume Literaturverzeichnis
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  • 55
    Signatur: SR 99.0015(412) ; ZSP-292-412
    In: Freiberger Forschungshefte, 412
    Materialart: Schriftenreihen ausleihbar
    Seiten: 68 Seiten , Illustrationen
    Ausgabe: 1. Auflage
    ISBN: 3-342-00923-3
    ISSN: 0071-9409
    Serie: Freiberger Forschungshefte : C 412 : Geowissenschaften, Geologie
    Sprache: Deutsch
    Anmerkung: Beitrag zur Geologie der Hutton Mountains und der Guettard Range (Palmer Land, Antarktische Halbinsel) : Teilnahme an der 29. Sowjetischen Antarktisexpedition 1984 ; vorläufige Mitteilung / Wolfgang Weber, Karin Rank
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  • 56
    Monographie ausleihbar
    Monographie ausleihbar
    Berlin : Verlag Neues Leben
    Signatur: AWI E3-18-91898
    Materialart: Monographie ausleihbar
    Seiten: 32 Seiten , Illustrationen , 20 cm
    ISBN: 3355005347 (geh.)
    Serie: Das neue Abenteuer 492
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 57
    Signatur: AWI P6-87-0664
    Materialart: Monographie ausleihbar
    Seiten: 41 Seiten
    Sprache: Unbestimmte Sprache
    Anmerkung: TABLE OF CONTENTS: I. Objectives. - II. Summary and Points of General Consensus. - III. Report of the Meeting A. Background. - B. Values of Increased Coordination/Collaboration Among Antarctic Scientific Research Programs. - Presentation by Dr. David Drewry. - C. Opportunities for Increased Coordination/Collaboration. - Working Group Chairmen: Dr. Gotthilf Hernpel jointly with Patrick G. Quilty, and Dr. Fred Roots. - D. How to Give Effect to Increased Coordination/Collaboration. - 1. Information and Communication. - 2. Logistics. - List of Specific Opportunities for Increased Coordination/Collaboration. - Working Group Chairmen: Dr. Gotthilf Hernpel jointly with Patrick G. Quilty, and Dr. Fred Roots. - E. Policy and Responsibility. - 1. The Scientific Research Agenda. - 2. New Entrants. - 3. Consultative Status Requirements. - Chairmen: Robert H. Rutford and R. Tucker Scully. - IV. Participants List.
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  • 58
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge : British Antarctic Survey
    Signatur: AWI E3-89-0106
    Materialart: Monographie ausleihbar
    Seiten: 156 Seiten , 29 cm
    Ausgabe: First edition: June 1987
    ISBN: 0856651230
    Sprache: Englisch
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
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  • 59
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/21
    In: CRREL Report, 87-21
    Beschreibung / Inhaltsverzeichnis: The author measured time series of longitudinal (u) and vertical (w) velocity and temperature (t) and humidity (q) fluctuations with fast-responding sensors in the near-neutrally stable surface layer over a snow-covered field. These series yielded individual spectra and u-w, w-t, w-q and t-q cospectra, phase spectra and coherence spectra for nondimensional frequencies (fz/U) from roughly 0.001 to 10. With the exception of the u-w cospectra, all the spectra and cospectra displayed the expected dependence on frequency in an inertial or inertial-convective subrange. All, however, contained significantly more energy at low frequency than the Kansas neutral-stability spectra and cospectra. This excess low-frequency energy and the erratic behavior of the u-w cospectra imply that forested hills bordering the site on two sides were producing disturbances in the flow field at scales roughly equal to the height of the hills, 100 m. The phase and coherence spectra suggest that internal gravity waves were also frequently present, since the atmospheric boundary layer generally had slightly stable stratification. Consequently, at this complex site, turbulence alone determines the spectra and cospectra at high frequency; at low frequency the spectra and cospectra reflect a combination of topographically generated turbulence and internal waves. From the measured temperature and humidity spectra and the t-q cospectra, the author computed refractive index spectra for light of 0.55-micrometer and millimeter wavelengths. The refractive index spectra had shapes like the other scalar spectra: excess energy at low frequency and an inertial-convective subrange at high frequency.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 50 Seiten , Illustrationen
    Serie: CRREL Report 87-21
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Measurements Spectra u and w velocity spectra Temperature and humidity spectra Inertial-dissipation estimates Cospectra u-w cospectra w-t and w-q cospectra t-q cospectra Refractive index spectra Conclusions Literature cited
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  • 60
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/22
    In: CRREL Report, 87-22
    Beschreibung / Inhaltsverzeichnis: This review discusses problems associated with the anomalous temperature-density relations of water. It covers a) onset of convection, b) temperature structure and natural convective heat transfer, and c) laminar forced convective heat transfer in the water/ice system. The onset of convection in a water/ice system was found to dependent on thermal boundary conditions, not a constant value as in the classical fluids that have a monotonic temperature-density relationship. The water/ice system also exhibits a unique temperature distribution in the melt layer immediately after the critical Rayleigh number is exceeded and soon after it establishes a more or less constant temperature region progressively deepening as the melt layer grows. The constant temperature is approximately 3.2°C for water layers formed from above but varies for melt layers from below. The heat flux across the water/ice interface was found to be a weak power function and to increase linearly with temperature for melted layers from above and below, respectively.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 43 Seiten , Illustrationen
    Serie: CRREL Report 87-22
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Analytical studies on the onset of convection in a horizontal water layer Experimental studies on the onset of convection in a circular horizontal melt layer Temperature structure and heat transfer In a horizontal layer In a circular horizontal melt layer pHeat transfer studies in nonplanar geometries Forced convective heat transfer over a melting surface Discussion and conclusions Onset of convection Temperature structure and natural convective heat transfer Laminar forced convective heat transfer Literature cited
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  • 61
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/10
    In: CRREL Report, 87-10
    Beschreibung / Inhaltsverzeichnis: Uniaxial constant-stress and constant-strain-rate compression tests were conducted on more than 200 remolded, saturated, frozen specimens of Fairbanks silt under various conditions. A series of curves of stress vs strain rate for various temperatures of strain rates ranging from about 6x10-2 to 10-8s-1show a close strength correspondence between the constant-stress and-costant strain-rate tests. All of these "complete" stress vs strain rate curves could not be described by a single power law or exponential equation, indicating that different deformation mechanisms are dominant within different ranges of strainrate Two critical strain rates for distinguishing between the different deformation mechanisms were ob-served to be near 10- 3 and 10-6 s-1 for the medium-dense frozen Fairbanks silt. The former indicates the transition from ductile failure to moderate brittle fracture as strain rate increases, while the latter indicates the transition from dislocation creep to glide creep (by the authors' definition). Based on the change in flow law, two fundamental creeps were classified: short-term creep, which is governed by glide creep, and long-term creep, which is governed by dislocation creep. The failure criterion of frozen silt has a general form of em x tm = Ef, where m depends only on density, and tm is in minutes if m is not 1. The failure strain Ef was not sensitive to temperature and strain rate over a certain range of strain rates, but it was very sensitive to density. Assur's creep model (1980) for ice was used to fit the creep data in this study. It works well for short-term creep but does not fit as well for long-term creep. The rate process theory was applied to the creep data. A very high value of experimental activation energy was obtained for lower stresses, and a very high value of apparent activation energy was observed for higher temperatures. The peak compressive strength was very sensitive to temperature and strain rate but relatively insensitive to density. While the initial tangent modulus is not-sensitive to strain rate, it increases with decreasing temperature and density.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 75 Seiten , Illustrationen
    Serie: CRREL Report 87-10
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Review of previous work Specimen preparation Material Molding Testing procedure and apparatus Test results Definition of strain and stress Definition of creep failure Definition of failure in constant-strain-rate tests Definition of initial yield strength Determination of initial tangent modulus and 50% peak strength modulus Creep behavior General nature of the creep process and the failure mode Minimum creep rate Time to creep failure Relationship between t, and tm Creep failure strain and failure criterion Creep model and prediction of creep strain Strength behavior General stress-strain behavior and failure mode Peak compressive strength Initial yield strength Failure strain Initial yield strain Initial tangent modulus 50% peak strength modulus Correspondence between constant-stress tests and constant-strain-rate tests Conclusions Literature cited Appendix A: Unfrozen water content data Appendix B: Physical properties of samples tested
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  • 62
    Signatur: AWI P7-20-93383
    In: SPRI Review, 86
    Materialart: Schriftenreihen ausleihbar
    Seiten: 26 Seiten , Illustrationen
    Serie: SPRI Review 86
    Sprache: Englisch
    Anmerkung: Contents Report from the Director Research overviews Sea ice studies Glacier geophysics Remote sensing Northern and social affairs Library and information service Aquisitions Archives and museum Teaching, lectures and colloquia International activities Research and visiting scholars Friends of the Polar Institute Gino Watkins Memorial Fund Research Abstracts Sea ice Glacier geophysics Social sciences Institute staff Publications
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  • 63
    Signatur: ZSP-201-87/2
    In: CRREL Report, 87-2
    Beschreibung / Inhaltsverzeichnis: This is the third in a series of four reports on the laboratory and field testing of a number of road and airfield subgrades, covering the laboratory repeated-load triaxial testing of five soils in the frozen and thawed states and analysis of the resulting resilient modulus measurements. The laboratory testing procedures allow simulation of the gradual increase in stiffnessfound in frost-susceptible soils after thawing. The resilient modulus is expressed in a nonlinear model in terms of the applied stresses, the soil moisture tension level (for unfrozen soil), the unfrozen water content (for frozen soil) and the dry density. The resilient modulus is about 10 GPa for the frozen material at temperatures in the range of -5° to -8° C. The decrease in modulus with increasing temperature was well-modeled in terms of the unfrozen water content. Upon thaw, the modulus dropped to about 100 MPa and generally increased with increasing confining stress and decreased with increasing principal stress ratio. The modulus also increased with the soil moisture tension level. The resilient Poisson's ratio did not appear to be a systematic function of any of the test variables.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 36 Seiten , Illustrationen
    Serie: CRREL Report 87-2
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Test sections and materials Specimen preparation Test soils Asphalt concrete Laboratory testing Soil testing Waveforms of applied stress Asphalt concrete Data reduction and analysis Soil Asphalt concrete Results and discussion General Resilient modulus Summary Conclusions Literature cited Appendix A: Soil moisture tension versus water content for several test soils Appendix B: Tabulated results for all tests on frozen and thawed soils
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  • 64
    Zeitschrift ausleihbar
    Zeitschrift ausleihbar
    Signatur: AWI P6-90-0328
    Materialart: Zeitschrift ausleihbar
    Seiten: 128 Seiten , Illustrationen, graphische Darstellungen, Karten
    ISSN: 0207-5709
    Serie: Wissenschaft in der UdSSR 2/1987
    Sprache: Deutsch
    Anmerkung: Inhalt: REPORTAGE. - Der Zeit voraus / J. Knorre. - WISSENSCHAFT AUF DEM VORMARSCH. - Molekularbiologie des Krebses / F. Kisseljow. - Das Antlitz der Venus / O. Rshiga, Ju. Alexandrow, A. Sidorenko, A. Basilewski. - Frost und Pflanzen / T. Trunowa. - Mikroexplosionen an der Metalloberfläche / G. Mesjaz, W. Putschkarjow. - ENTDECKUNGEN UND ERFINDUNGEN. - Katalysator des technischen Fortschritts / I. Najaschkow. - Künstliche "Schmierung" für Gelenke / W. Jefimow. - Recht auf Entdeckung / W. Sapelkin, W. Potozki. - NEUES AUS DEM FORSCHUNGSLABOR. - Kälte zur Herzbehandlung / A. Urakow. - AUSZEICHNUNGEN. - "... immer eine Handbreit Wasser unterm Kiel!" / G. Bushinskaja. - WISSENSCHAFT FÜR DIE PRAXIS. - Badekuren / N. Kamenskaja, I. Kasjanowa. - WISSENSCHAFT IM DIENSTE DER PRODUKTION. - Könnten Diamanten reden / W. Kowalski, P. Schamajew. - GESCHICHTE DER WISSENSCHAFT IN GELEHRTENBIOGRAPHIEN. - Boris Lischkow. "In der Wissenschaft wiegen nicht nur Fakten und Logik, sondern auch die Vorstellungskraft, bildhaftes Denken." / R. Balandin. - UNSER HAUS IST DIE ERDE. - Geheimnisse im Inneren der Antarktis / W. Iwanow, G. Grikurow, W. Massolow. - Die wichtigste Naturressource / W. Bobrinew. - BEI UNS ZU GAST. - Die Zeitschrift "spectrum". - Die Zeitschrift "Mikroprozessornyje sredstwa i sistemy". - KONTAKT: LESER-REDAKTION. - LACHPAUSE. - IN FACHZEITSCHRIFTEN GEBLÄTTERT. - "Die verlorene Welt" der Kurilen. - Die diversen Wirkungen des Drucks. - Wo ist das Leben entstanden? Wieviele Erdteile gibt es?
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  • 65
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/13
    In: CRREL Report, 87-13
    Beschreibung / Inhaltsverzeichnis: Thermodynamic properties of electrolyte solutions change rapidly below 25C, but these properties are seldom measured over the low temperature range (below 0C), even though some salt solutions can remain unfrozen to -50C. The heat capacities of concentrated solutions (0.5-0.6 molal) of NaC-H2O were measured from 25C to -40C as part of a study to provide thermodynamic data of salt solutions for use in cold regions chemical and geophysical studies. A differential scanning calorimeter was used to measure specific heat capacity from cooling scans as a function of temperature and concentration. The heat capacity data were fit to the equations of Pitzer and coworkers to obtain activity and osmotic coefficients of NaC and H2O, respectively, below o C. Supercooling of the solutions was encouraged by using a fast scan rate (10d2/minute) so that specific heat could be measured to lower temperatures than would be possible if the solutions were allowed to equilibrate with the solid phases. The solubility of ice was calculated and compared to the experiment freezing point of NaC solutions.
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    Seiten: ii, 16 Seiten , Illustrationen
    Serie: CRREL Report 87-13
    Sprache: Englisch
    Standort: AWI Archiv
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  • 66
    Signatur: ZSP-201-87/14
    In: CRREL Report, 87-14
    Beschreibung / Inhaltsverzeichnis: During February and March 1980 the physical properties of Weddell Sea pack ice were investigated via core drilling of 66 floes located along the transect of 600 nautical miles from 64°S to 74°S latitude at roughly 40°W longitude. These studies revealed widespread frazil ice in amounts not known to exist in Arctic sea ice of comparable age and thickness. It is estimated from structure studies of 62 of the 66 floes that 54% of the total ice production of the Weddell Sea is generated as frazil. The disposition and exceptional thickness of the frazil show that mechanisms other than surface turbulence effects are involved and imply that the circulation and structure of the water in the upper levels of the Weddell Sea are significantly different from those in the Arctic basin. Salinities of both first-year and multi-year floes are notably higher than those of their Arctic counterparts because summer surface melting is rare or absent in the Weddell Sea; in the Arctic, downward percolating meltwater flushes through the ice and lowers its salinity. Fluorescence was evaluated as a means of revealing biological activity in Weddell Sea pack ice. It proved useful as an index of combined living and dead material in the ice, but measurements failed to establish any consistent relationship between fluorescence and salinity as suggested be earlier work in the Weddell Sea.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 80 Seiten , Illustrationen
    Serie: CRREL Report 87-14
    Sprache: Englisch
    Anmerkung: CONTENTS Preface Introduction Sea ice structure and classification Logistics and field operations Analytical techniques Crystalline structure Fluorescence Results Salinity Crystalline structure Fluorescence Description of selected floes Conclusions Literature cited Appendix A: Floe descriptions
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  • 67
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Leipzig : Akademie der Wissenschaften der DDR, Zentralinstitut für Isotopen- und Strahlenforschung
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    Signatur: ZSP-980-131
    In: ZfI-Mitteilungen, Nr. 131
    Materialart: Schriftenreihen ausleihbar
    Seiten: 142 Seiten , Illustrationen
    ISSN: 0323-8776
    Serie: ZfI-Mitteilungen 131
    Sprache: Deutsch
    Anmerkung: Inhaltsverzeichnis: 1. Einleitung. - 2. Aufgabenstellung. - 3. Untersuchungen zur Beschreibung des von Meßgutinhomogenitäten verursachten Meßfehlers. - 3.1. Berechnung der Größe des Meßfehlers für verschiedene Meßanordnungen. - 3.1.1. Transmissionsmessung mit Gammastrahlung. - 3.1.2. 2-Energien-Gammastrahlungs-Transmissionsmeßverfahren. - 3.1.3. Streumeßverfahren. - 3.1.4. Andere Meßverfahren. - 3.2. Experimentelle Überprüfung. - 3.2.1. Ziel der Experimente. - 3.2.2. Beschreibung des Meßaufbaues. - 3.2.3. Durchführung und Ergebnisse der Experimente. - 3.2.4. Größe der Meßgutinhomogenitäten an zwei konkreten Aschemeßstellen. - 4. Vier Verfahren zur Eliminierung und Korrektur des Einflusses der Meßgutinhomogenitäten. - 4.1. Messung des Inhomogenitätsparemeters γ und nachträgliche Korrektur. - 4.1.1. Prinzip des Verfahrens. - 4.1.2. Eine Methode zur Messung des Parameters γ an schnell bewegtem Meßgut. - 4.1.2.1. Beschreibung der γ-Meßmethode. - 4.1.2.2. Experimenteller Test der γ-Meßmethode. - 4.1.3. Hinweise zur Anwendung. - 4.2. Unterteilung der Gesamtmaßzeit in kurze Elementarmeßzeiten. - 4.2.1. Prinzip des Verfahrens. - 4.2.2. Probleme des Verfahrens. - 4.2.2.1. Überblick. - 4.2.2.2. Rechenzeit. - 4.2.2.3. Statistische Effekte durch das Logarithmieren kleiner Impulszahlen. - 4.2.2.4. Restfehler, verursacht durch noch verbleibende r-Schwankungen während der Elementarmeßzeit. - 4.2.3. Erfahrungen bei der praktischen Anwendung. - 4.3. Messung mit langer Totzeit. - 4.3.1. Prinzip des Verfahrens. - 4.3.2. Messung mit nachgeführter Totzeit. - 4.3.3. Messung mit zwei unterschiedlichen Totzeiten. - 4.4. Meßsignalgewinnung aus der Zeitintervallverteilung. - 4.4.1. Prinzip des Verfahrens. - 4.4.2. Experimentelle Überprüfung. - 4.4.3. Probleme des Verfahrens. - 4.4.4. Messung mit speziellem Impulsgenerator zur Linearisierung der mittleren Impulsdichte. - 5. Vergleich der Verfahren zur Eliminierung und Korrektur des Einflusses der Meßgutinhomogenitäten. - 6. Konzept für ein Aschemeßgerät auf der Basis der 2-Energien-Gammastrahlungs-Transmission mit Signalgewinnung aus der Zeitintervallverteilung. - 7. Zusammenfassung und Schlußfolgerungen. - Anlagen 1 - 19. - Erläuterung der Formelzeichen, der Indizes und einiger Begriffe. - Literaturverzeichnis.
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  • 68
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Bremerhaven : Alfred-Wegener-Institut für Polar- und Meeresforschung
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    Signatur: ZSP-290-1995/1996
    In: Forschungsprogramm / Alfred-Wegener-Institut für Polar- und Meeresforschung, 1995/1996
    Materialart: Schriftenreihen ausleihbar
    Seiten: 163 Seiten
    Serie: Forschungsprogramm / Alfred-Wegener-Institut für Polar- und Meeresforschung 1995/1996
    Sprache: Deutsch
    Anmerkung: Inhaltsverzeichnis: AUFGABEN, ZIELE UND RESSOURCEN DES INSTITUTS = Objectives, Targets, and Resources of the Institute. - 1. DAS GEKOPPELTE SYSTEM : OZEAN-ATMOSPHÄRE-KRYOSPHÄRE = The coupled system : Ocean-Atmosphere-Cryosphere. - 1.1 PHYSIKALISCHE PROZESSE IN DEN POLARMEEREN = Physical processes in polar seas. - 1.1.1 Modeliierung der thermohalinen Zirkulation und Spurenstoffausbreitung = Modelling of thermohaline and trace matter circulation. - 1.1.2 Bestimmung der ozeanischen Zirkulation aus Beobachtungen = Determination of ocean circulation from observations. - 1.1.3 Transformation und Ausbreitung von Wassermassen im südlichen Atlantischen Ozean = Transformation and distribution of water masses in the southern Atlantic Ocean. - 1.1.4 Thermohaliner Aufbau und Zirkulation des Nordpolarmeers = Thermohaline structure and circulation of the Arctic Ocean. - 1.1.5 Untersuchung von Küstenpolynyas: Nordwasser-Polynya = lnvestigation of coastal polynyas: North water. - 1.1.6 Transporte und Wassermassenbildung in der Grönlandsee = Transports and formation of water masses in the Greenland Sea. - 1.1.7 Modellierung von Konvektion im Ozean = Modelling of convection in the ocean. - 1.1.8 Variationen des anorganischen Kohlenstoffs in der ozeanischen Deckschicht = Variations of anorganic carbon in the oceanic surface layer. - 1.1.9 Die großräumige Verteilung des Meereises und ihre zeitliche Entwicklung in der Arktis und Antarktis = The large-scale distribution of sea-ice and its evolution in time in the Arctic and Antarctic. - 1.1.10 Die Mikrostruktur des Meereises und ihre physikalischen Auswirkungen = Sea-ice micro-structure and its physical effects. - 1.1.11 Neue Methoden zur Bestimmung der Meereisdicke und ihre Erprobung unter verschiedenen Umgebungsbedingungen = New methods to determine sea-ice thickness and their testing under different environmental conditions. - 1.2 PHYSIKALISCHE UND CHEMISCHE PROZESSE IN DER POLAREN ATMOSPHÄRE = Physical and chemical processes in the polar atmosphere. - 1.2.1 Einfluß heterogener Randbedingungen auf die Turbulenz und die mittleren Größen in der atmosphärischen Grenzschicht = lnfluence of heterogeneaus boundary conditions on turbulence and mean values in the atmospheric boundary layer. - 1.2.2 Die Wirkung von Wolken und Dunst auf den Ozean-Atmosphären-Austausch in Meereisregionen = The effect of clouds and haze on the ocean-atmosphere exchange in sea-ice covered regions. - 1.2.3 Spurenstoffe und Ozon in der polaren Stratosphäre = Trace matters and ozone in the polar atmosphere. - 1.2.4 Die Zirkulation der Stratosphäre über der Arktis und ihr Einfluß auf die Ozonkonzentration = Stratospheric circulation over the Arctic and its influence on ozone concentration. - 1.2.5 Arktischer Dunst und troposphärische Spurenstoffe = Arctic haze and tropospheric trace matter. - 1.2.6 Modellierung von Klimaprozessen der arktischen Tropo- und Stratosphäre = Modelling of climatic processes in the Arctic troposphere and stratosphere. - 1.2.7 Niederfrequente Variabilität der atmosphärischen Zirkulation in polaren Breiten = Low frequency variability of atmospheric eirculation in polar latitudes. - 1.3 PHYSIKALISCHER AUFBAU, MASSENHAUSHALT UND DYNAMIK VON SCHELF- UND INLANDEISEN = Physical structure, mass balance and dynamics of ice shelves and inland-ice. - 1.3.1 Zirkulation und Wassermassentransformation unter dem Filchner-Ronne-Schelfeis = Circulation and transformation of water masses under the Filchner-Ronne Ice Shelf. - 1.3.2 Die physikalischen Eigenschaften, der Massenhaushalt und das Bewegungsfeld des Filchner-Ronne- und des Ekström-Schelfeises = Physical properties, mass balance and dynamics of the Filchner-Ronne and Ekström Ice Shelves. - 1.3.3 Wechselwirkung zwischen Inlandeis und antarktischen Oasen am Beispiel der Schirmacheroase = Interaction between inland ice and Antarctic oases, e.g. at Schirmacher Oasis. - 1.3.4 Numerische Modellierung von Inlandeisen und Schelfeisen = Numerical modelling of inland-ice and ice shelves. - 1.3.5 Struktur, Massenhaushalt, Bewegung und Geschichte des Grönländischen Eisschildes = Structure, mass balance, dynamics and history of the Greenland Ice sheet. - 1.4 KLIMAGESCHICHTE AUS DEM EIS = Climate history derived from ice. - 1.4.1 Klimageschichte aus dem Eis Grönlands: Das Grönländische Eiskern-Projekt (GRIP) = Climate history from the Greenland Ice: The Greenland lce-core Project (GRIP). - 1.4.2 Nördgrönland-Traverse = North Greenland traverse. - 1.4.3 EPICA, Europäisches Eiskern-Programm in der Antarktis = EPICA, European Programme on Polar Ice Coring in the Antarctic. - 1.4.4 Bohrung Berkner Island, Antarktis = Drilling on Berkner lsland, Antarctica. - 2. MARINE ÖKOSYSTEME = Marine Ecosystems. - 2.1 ÖKOLOGIE UND ÖKOPHYSIOLOGIE EINZELNER ARTEN UND GRUPPEN = Ecology and ecophysiology of some species and groups. - 2.1.1 Struktur und Aktivität C-heterotropher Bakterien- und Pilzgesellschaften aus extremen Habitaten = Structures and activities of C-heterotrophic baeteria and fungi communities from extreme habitats. - 2.1.2 Autökologische Untersuchungen zum Planktonwachsturn und zur Planktonmortalität = Auto-ecologieal studies on plankton growth and mortality. - 2.1.3 Genotypische und phenotypische Variationen im Phytoplankton und Phylogenie der Diatomeen und Haptophyten = Genotype and phenotype variations in phytoplankton, and phylogeny of diatoms and haptophytes. - 2.1.4. Vergleiche physiologisch-biochemischer Anpassungen von Benthos- und Nektontieren in polaren und gemäßigten Regionen = Comparison of physiological-biochemieal adaptions of benthic and neotonic animals in polar and moderate regions. - 2.1.5 Ökologie polarer Makroalgen = Ecology of polar macro-algae. - 2.1.6 Lebenszyklen, Lebensstrategien und physiologische Anpassungen polarer Makroalgen und Evertebraten = Life cycles, life strategies and physiological adaptions of polar macro-algae and evertebrates. - 2.2 STRUKTUR UND ENTWICKLUNG MARINER LEBENSGEMEINSCHAFTEN = Structure and evolution of marine living communities. - 2.2.1 Meereis-Lebensgemeinschaften = Sea-ice communities. - 2.2.2 Pelagische Lebensgemeinschaften = Pelagic communities. - 2.2.3 Benthische Lebensgemeinschaften = Benthic communities. - 2.2.4 Biogeographische Zusammenhänge benthischer und planktischer Lebensgemeinschaften der Antarktis mit denen der Magellanregion = Biogeographical connections of benthic and planktonic communities of the Antarctic with those of the Magellan region. - .3 ÖKOLOGISCHE PROZESSE = Ecological processes. - 2.3.1 Nutzungseffizienz der photosynthetisch verwertbaren Unterwasserstrahlung durch das antarktische Phytoplankton = Utilization of the photosynthetically active underwater radiation by Antarctic phytoplankton. - 2.3.2 Messungen und Auswirkungen der UV-B Strahlung auf das Plankton, die Meereisgemeinschaften und die Makroalgen polarer Regionen = Measurements and effects of UV-B radiation on plankton, sea-ice communities, and macro-algae of polar regions. - 2.3.3 Direkte Effekte von CO2 auf das Plankton und deren Auswirkungen auf den marinen Kohlenstoffkreislauf = Direct effects of CO2 on plankton, and their influence on the marine carbon cycle. - 2.3.4 Physikalische und biologische Prozesse an Fronten des Südlichen Ozeans = Physical and biological processes at fronts of the Southern Ocean. - 2.3.5 Biogene Stoffkreisläufe und pelago-benthische Kopplung = Biogeneous cycles and pelago-benthic coupling. - 2.3.6 Energiefluß und Interaktionen in einem antarktischen Flachwasser-System = Energy flux and interactions in an Antarctic shallow water system. - 2.3.7 Robben, Pinguine und ihre Parasiten im Nahrungsnetz antarktischer Schelfgebiete = Seals, penguins and their parasites in the food web of Antarctic shelf areas. - 2.3.8 Biologische Dynamik des Auftriebssystems des Humboldt-Stroms und EI Niño-Einflüsse = Biological dynamics of the upwelling system of the Humboldt Current and influences of "EI N
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  • 69
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/20
    In: CRREL Report, 87-20
    Beschreibung / Inhaltsverzeichnis: The structure and salinity characteristics of saline ice slabs removed from ice sheets grown in an outdoor pool have been studied and related to the complex relative dielectric permittivity measured with free-space transmission techniques at 4.80 and 9.50 GHz. The saline ice closely simulated arctic sea ice in its structural and salinity characteristics, which were regularly monitored in a number of ice sheets grown during the winters of 1983-84 and 1984-85. In-situ transmission measurements at similar frequencies were also made on the ice sheets themselves using antennas located above and beneath the ice. The slab measurements were made during warming from -29° to -2°C on slabs grown during the winter of 1983-84 (4.75 GHz) and during a warming and cooling cycle over a slightly larger temperature range on slabs grown during the winter of 1984-85 (4.80 and 9.50 GHz).
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 41 Seiten , Illustrationen
    Serie: CRREL Report 87-20
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Part I - Structural properties Introduction Experimental setup Analytical techniques Results and discussion 1983-84 experiments 1984-85 experiments Conclusions and recommendations Part Il - Microwave properties Introduction Measurement techniques Results 1983-84 experiments 1984-85 experiments 1984-85 in-situ experiments Discussion Comparison of data Analytical modeling Summary and conclusions Literature cited Appendix A: Dielectric mixing model of sea ice
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  • 70
    Signatur: AWI G7-19-92305
    Materialart: Monographie ausleihbar
    Seiten: 116 Blätter
    Sprache: Englisch
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  • 71
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-87/4
    In: CRREL Report, 87-4
    Beschreibung / Inhaltsverzeichnis: In this report we present results of measurements of the crystalline structure and salinity characteristics of sea ice in Hebron Fiord and vicinity, Labrador. Structurally, the fiord ice was entirely first year and composed predominantly of congelation, columnar-type crystals. At most of the sampling sites the ice exhibited moderately to strongly aligned c-axes consistent with the inferred direction of near surface currents in the fiord. Generally diminished values of bulk salinity at five separate locations reflect the warm ice conditions encountered at the time of sampling (late May) and the effect of meltwater flushing in promoting loss of brine, vertically, from the ice sheet. Observations outside Hebron Fiord indicated the presence of only minor amounts of multiyear ice during the latter part of May.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 25 Seiten , Illustrationen
    Serie: CRREL Report 87-4
    Sprache: Englisch
    Anmerkung: Contents: Abstract Preface Introduction Sampling procedure Analytical techniques Salinities Crystal structure Results Salinity Crystal structure Brine layer spacing Incidental temperatures Conclusions Literature cited Appendix A: Vertical and horizontal thin section photographs of sea ice from various sites
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  • 72
    Signatur: ZSP-201-87/3
    In: CRREL Report, 87-3
    Beschreibung / Inhaltsverzeichnis: This report describes the structural analysis of multi-year sea ice samples that were tested in the first phase of a program designed to obtain a comprehensive understanding of the mechanical properties of multi-year sea ice from the Alaskan Beaufort Sea. Each test specimen is classified into one of three major ice texture categories: granular, columnar, or a mixture of columnar and granular ice. The crystallographic orientation, percent columnar ice, and grain size are then evaluated for the granular and/or columnar ice in the sample. Test results are interpreted with respect to these parameters. The overall composition of multi-year ridges is also considered, based on the extensive field sampling that was done in the program
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 40 Seiten , Illustrationen
    Serie: CRREL Report 87-3
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Sample analysis Continuous multi-year ridge core Tested multi-year ridge ice samples Tested multi-year floe ice samples Ice description Uniaxial constant-strain-rate compression tests Uniaxial constant-load compression tests Uniaxial constant-strain-rate tension tests Triaxial constant-strain-rate compression test Conclusions Literature cited Appendix A: Multi-year ridge sample data Appendix B: Multi-year floe sample data
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  • 73
    Signatur: ZSP-201-87/6
    In: CRREL Report, 87-6
    Beschreibung / Inhaltsverzeichnis: Two-phase dielectric mixing model results are presented showing the electromagnetic properties of sea ice versus depth. The modeled data are compared with field measurements and show comparable results. It is also shown how the model data can be used in support of impulse radar and airborne electromagnetic(AEM) remote sensing of sea ice. Examples of the remote measurement of sea ice thickness using impulse radar operating in the 80- to 300-MHz frequency band and low-frequency (500 to 30,000 Hz) sounding techniques are presented and discussed. Keywords: Polar regions; Radar pulses.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vii, 55 Seiten , Illustrationen
    Serie: CRREL Report 87-6
    Sprache: Englisch
    Anmerkung: Contents Abstract Preface Nomenclature Introduction Sea ice growth and structure Model sea ice Brine salinity Seawater and model brine conductivity Complex dielectric constant of brine Electromagnetic properties of model sea ice at 100 MHz Electromagnetic properties of model sea ice at 100 and 500 MHz and 1 and 5 GHz Example of impulse radar sea ice profiling results Example of frequency-domain electromagnetic sea ice thickness sounding Concluding remarks Literature cited
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  • 74
    Signatur: ZSP-201-87/17
    In: CRREL Report, 87-17
    Beschreibung / Inhaltsverzeichnis: The ability to map frazil ice deposits and water channels beneath an ice-covered river in central Alaska using the magnetic induction conductivity (MI) technique has been assessed. The study was performed during the first week of March of 1986 on the Tanana River near Fairbanks and employed a commercially available instrument operating at a fixed frequency with a fixed antenna (coil) spacing and orientation. Comparisons of the MI data with theoretical models based upon physical data measured along three cross sections of the river demonstrate the sensitivity of the MI technique to frazil ice deposits. The conductivity generally derived for the frazil ice deposits encountered is very low (approx. .00063 s/m) when compared with the measured value for water (approx. 0.011 S/m), and is similar to the calculated values for gravel and sandy gravel bed sediments. In all three cross sections, maxima in the apparent conductivity profiles correlated with frazil ice deposits. Difficulties, possibly due to adverse effects of cold weather upon instrument calibration, affected the quantitative performance of the instrument on one cross section, although the interpretation of the data (locations of open channels vs frazil deposits) was qualitatively unaffected.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 17 Seiten , Illustrationen
    Serie: CRREL Report 87-17
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Magnetic induction conductivity method Site description and survey methods Cross section field data and modeling results X6 X3A X4 Conclusions and recommendations Literature cited Appendix A: Discussion of errors Appendix B: Modeling data
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  • 75
    Signatur: AWI G6-19-93060
    Materialart: Monographie ausleihbar
    Seiten: 6 Seiten, 29 Blätter, 7 Seiten
    Sprache: Deutsch , Französisch , Englisch
    Standort: AWI Lesesaal
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  • 76
    Monographie ausleihbar
    Monographie ausleihbar
    Boulder, Colo. : Plant Ecology Laboratory, Institute of Arctic and Alpine Research University of Colorado
    Signatur: AWI G3-23-94998
    Materialart: Monographie ausleihbar
    Seiten: 29, 27 Seiten , Illustrationen
    Serie: U.S. Department of Energy R4D Program Data Report
    Sprache: Englisch
    Anmerkung: Table of Contents List of figures, tables, appendices Introduction Methods Locations of the transects Site factors Soil Chemical properties Soil pH Cations NO3 Total P and SO4 Vegetation sampling Results Discussion Conclusions Acknowledgements References Figures Tables Appendices
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  • 77
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge : Cambridge University Press
    Signatur: PIK N 630-13-0084 ; AWI Bio-22-20909
    Materialart: Monographie ausleihbar
    Seiten: XII, 178 Seiten , Illustrationen
    ISBN: 0-521-30868-2 , 0-521-54409-2
    Sprache: Englisch
    Anmerkung: Contents Preface Acknowledgements 1 Introduction Terms and abbreviations 2 The biogeographlcal setting Geology, physiography, and surface materials The structural framework Pleistocene geology Bioclimates Arctic and its three subzones Subarctic zone Boreal zone Eastern temperate zone Grassland zone Pacific and Cordilleran zones 3 Autecology and pollen representation Introduction Transcontinental, primarily boreal taxa Eastern, primarily temperate taxa Pacific-Cordilleran taxa Arctic taxa Modern regional pollen spectra The Western Interior The eastern plains transect The Pacific-Cordilleran transect General comments on the modern pollen spectra 4 Full-glacial refugla The southern refugia Pacific-Cordilleran refugia Interior plains and eastern region The Beringian refugia 5 Eastern Canada-fossil record and reconstruction Introduction The late glacial - 12,700 to 10,000 yr BP Southern Quebec and New Brunswick Maritime Canada The Great Lakes Basin Vegetation reconstruction The Holocene - 10,000 yr BP to the present Southern Quebec and New Brunswick The Maritimes, Labrador, and Northern Quebec The Great Lakes Vegetation reconstruction Boreal region 6 The Western Interior Sites near the forest-grassland transition Sites within the modern boreal forest Sites near the modern forest-tundra boundary 7 Pacific-Cordilleran region Southern Pacific zone Southern Cordilleran zone Northern Pacific zone Northern Cordilleran zone 8 Vegetation reconstruction and palaeoenvironments Introduction Origins and history Eastern temperate forests Boreal forest Grasslands and parklands Pacific-Cordilleran complex Tundra (arctic) Palaeoenvironmental controls Climate The Milankovitch model Full-glacial conditions Late-glacial and Holocene Fire Pathogens Paludification Problems for the future Climate disequilibrium Spatial resolution Pollen source area Concluding comments Appendix References Index
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  • 78
    Monographie ausleihbar
    Monographie ausleihbar
    Houston, Tex. : Circum-Pacific Council for Energy and Mineral Resources
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    Signatur: AWI G9-88-0293
    In: Earth science series, Volume 5B
    Materialart: Monographie ausleihbar
    Seiten: IX, 253 Seiten , Illustrationen
    ISBN: 0933687052
    Serie: Earth science series 5B
    Sprache: Englisch
    Anmerkung: CONTENTS Geology and Structure of the Ross Sea Region / F. J. Davey Recording and Processing Procedures for Multichannel Seismic-Reflection Data Collected in the Western Ross Sea, Antarctica / S. V. Dadisman, H. F. Ryan, D. M. Mann Seismic Stratigraphy and Structure of the Victoria Land Basin, Western Ross Sea, Antarctica / A. K. Cooper, F. J. Davey, J. C. Behrendt Extent and Nature of Ross Sea Unconformity in the Western Ross Sea, Antarctica / H. A. Karl, E. Reimnitz, B. D. Edwards Structure of Extensionally Rifted Crust Beneath the Western Ross Sea and lselin Bank, Antarctica, from Sonobuoy Seismic Data / A. K. Cooper, F. J. Davey, G. R. Cochrane Gravity Studies of the Victoria Land Basin and lselin Bank / F. J. Davey, A. K. Cooper The Antarctic Continental Margin Magnetic Gradiometer Data: Suppression of Time Variations / R. O. Hansen, J. R. Childs Interpretation of Marine Magnetic Gradiometer and Multichannel Seismic-Reflection Observations over the Western Ross Sea Shelf, Antarctica / J.C. Behrendt, A. K. Cooper, A. Yuan Heat Flow and Tectonics in the Western Ross Sea, Antarctica / D. K. Blackman, R. P. Von Herzen, L. A. Lawver Geology and Physical Properties of Ross Sea, Antarctica, Continental Shelf Sediment / B. D. Edwards, H. J. Lee, H. A. Karl, E. Reimnitz, L. A. Timothy Hydrocarbon Geochemistry of Sediments Offshore from Antarctica / J. B. Rapp, K. A. Kvenvolden, M. Golan-Bae Diatoms from the 1984 USGS Antarctic Cruise in the Ross Sea / J. A. Barron, L. H. Burckle Petrography of Rock Samples Dredged from lselin Bank, Ross Sea, Antarctica / F. L. Wong, P. J. Barrett, J. Gamble, D. G. Howell
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  • 79
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge : SCAR
    Signatur: AWI P6-88-0329 ; AWI P6-89-0396
    Materialart: Monographie ausleihbar
    Seiten: VI, 146 S. , zahlr. Ill., graph. Darst., Kt.
    ISBN: 019854216X
    Sprache: Englisch
    Anmerkung: Contents: Introduction / Professor James H. Zumberge. - 1. First Impressions and the Setting. - 2. Why Are Scientists Interested in the Antarctic?. - 3. First Studies of Antarctica to the Treaty. - 4. Logistics, Transportation, and Telecommunications. - 5. Geodesy and Cartography in Antarctica. - 6. Geology and Solid-Earth Geophysics. - 7. "Land of Mountainous Ice". - 8. Cold Waters Run Deep. - 9. Antarctic Meteorology. - 10. Cold Climates and Frozen Atmospheres. - 11. The Upper Atmosphere from Antarctica. - 12. The Living Edge of Antarctica. - 13. Hostile Environment for Mankind. - 14. Environmental Impact of Man. - 15. Freedom of Exchange of Antarctic Scientific Information. - 16. A Continent for Collaboration. - Appendix 1: SCAR Publications. - Appendix 2: Antarctic Treaty. - Acknowledgements. - Index.
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  • 80
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Dazugehörige Bände
    Signatur: ZSP-168-39
    In: Berichte zur Polarforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: 259 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Serie: Berichte zur Polarforschung 39
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 81
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Dazugehörige Bände
    Signatur: ZSP-168-40
    In: Berichte zur Polarforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: 161 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Serie: Berichte zur Polarforschung 40
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 82
    Signatur: AWI G7-88-0758
    Materialart: Monographie ausleihbar
    Seiten: X, 368 S. , Ill., Kt.
    ISBN: 9027723702
    Serie: Glaciology and Quaternary Geology 4
    Sprache: Englisch
    Anmerkung: TABLE OF CONTENTS: Preface. - List of participants. - The West Antarctic Ice Sheet : the need to understand its dynamics / C. J. VAN DER VEEN. - Force budget of ice sheets / I. M. WHILLANS. - On the oceanic circulation near a shelf-ice edge / G. J. F. VAN HEIJST. - Quantitative estimates of the mass flux and ice movement along the ice edges in the eastern and southern Weddell Sea / M. A. LANGE. - Some aspects of the flow of the Ronne Ice Shelf / C. S. M. DOAKE. - Unconfined ice-shelf flow / L. W. MORLAND. - Plane and radial ice-shelf flow with prescribed temperature profile / L. W. MORLAND and R. ZAINUDDIN. - Ice-shelf backpressure : form drag versus dynamic drag / D. R. MACAYEAL. - Ice stream-ice shelf interaction in West Antarctica / R. A. BINDSCHADLER, D. R. MACAYEAL and S. N. STEPHENSON. - A few preliminary results from the glaciogeophysical survey of the interior Ross Embayment (GSIRE) / C. R. BENTLEY, S. SHABTAIE, D. D. BLANKENSHIP, R. B. ALLEY and S. T. ROONEY. - On the flow within the transition zone between ice sheet and ice shelf / K. HERTERICH. - The finite-element method applied to a time-dependent flowband model / J. L. FASTOOK. - Longitudinal stresses and basal sliding : a comparative study / C. J. VAN DER VEEN. - A subglacial aquifer bed model and water pressure dependent basal sliding relationship for a West Antarctic ice stream / C. S. LINGLE and T. J. BROWN. - The heat budget of the Ross drainage basin / J. OEKLEMANS. - Numerical modelling of the large-scale basal water flux under the West Antarctic Ice Sheet / W. F. BUDD and D. JENSSEN. - Modelling the response of the West Antarctic Ice Sheet to a climatic warming / W. F. BUDD, B. J. MCINNES, D. JENSSEN and I. N. SMITH. - Subject index. - Geographic index.
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  • 83
    Signatur: AWI A6-92-0280 ; 5/M 08.0207
    In: International geophysics series, Vol. 40
    Materialart: Monographie Präsenzbestand
    Seiten: X, 489 Seiten , Illustrationen
    ISBN: 0120585766
    Serie: International geophysics series 40
    Klassifikation:
    Meteorologie und Klimatologie
    Sprache: Englisch
    Anmerkung: Contents: Preface. - Acknowledgements. - Chapter 1 Introduction. - 1.1 The Static Structure of the Middle Atmosphere. - 1.2 Zonal Mean Temperature and Wind Distributions. - 1.3 Composition of the Middle Atmosphere. - 1.4 The Vertical Distribution of Eddy Amplitudes. - 1.5 Observational Techniques. - References. - Chapter 2 Radiative Processes and Remote Sounding. - 2.1 Introduction. - 2.2 Fundamentals. - 2.3 Gaseous Absorption Spectra. - 2.4 Transmission Functions. - 2.5 Infrared Radiative Exchange and Radiative Damping. - 2.6 Departure from Local Thermodynamic Equilibrium. - 2.7 Absorption of Solar Radiation. - 2.8 Radiative Equilibrium Temperature and Heating-Rate Distributions. - 2.9 Remote Sounding. - References. - Chapter 3 Basic Dynamics. - 3.1 Introduction. - 3.2 The Beta-Plane Approximation and Quasi-Geostrophic Theory. - 3.3 The Eulerian-Mean Equations. - 3.4 Linearized Disturbances to Zonal-Mean Flows. - 3.5 The Transformed Eulerian-Mean Equations. - 3.6 The Generalized Eliassen-Palm Theorem and the Charney-Drazin Nonacceleration Theorem. - 3.7 The Lagrangian Approach. - 3.8 Isentropic Coordinates. - 3.9 The Zonal-Mean Equations in Isentropic Coordinates. - Appendix 3A. Derivation of Some Equations in Isentropic Coordinates. - Appendix 3B. Boundary Conditions on the Residual Circulation. - References. - Chapter 4 Linear Wave Theory. - 4.1 Introduction and Classification of Wave Types. - 4.2 Wave Disturbances to a Resting Spherical Atmosphere. - 4.3 Atmospheric Thermal Tides. - 4.4 Free Traveling Planetary Waves. - 4.5 Forced Planetary Waves. - 4.6 Gravity Waves. - 4.7 Equatorial Waves. - Appendix 4A. Ray-Tracing Theory and Wave Action in a Slowly Varying Medium. - References. - Chapter 5 Extratropical Planetary-Scale Circulations. - 5.1 Introduction. - 5.2 The Observed Annual Cycle. - 5.3 Detailed Linear Models of Stationary Planetary Waves in the Middle Atmosphere. - 5.4 Detailed Linear Models of Free Traveling Planetary Waves in the Atmosphere. - 5.5 Barotropic and Baroclinic Instability. - 5.6 Planetary-Wave Critical Layers. - References. - Chapter 6 Stratospheric Sudden Warmings. - 6.1 Introduction. - 6.2 Observed Features of Sudden Warmings. - 6.3 Theoretical Modeling of Sudden Warmings. - 6.4 Conclusions. - References. - Chapter 7 The Extratropical Zonal-Mean Circulation. - 7.1 Introduction. - 7.2 Some Simple Zonally Averaged Models of the Middle Atmosphere. - 7.3 The Upper Mesosphere. - 7.4 The Winter Polar Stratosphere. - 7. 5 Interpretation and Generalization. - References. - Chapter 8 Equatorial Circulations. - 8.1 Introduction. - 8.2 The Observed Structure of the Equatorial Quasi-Biennial Oscillation. - 8.3 Theory of the Quasi-Biennial Oscillation. - 8.4 Observed Structure of the Equatorial Semiannual Oscillations. - 8.5 Dynamics of the Equatorial Semiannual Oscillations. - 8.6 Inertial Instability in the Equatorial Zone. - References. - Chapter 9 Tracer Transport in the Middle Atmosphere. - 9.1 Introduction: Types of Tracers. - 9.2 Long-Lived Chemical Tracers. - 9.3 Transport in the Meridional Plane. - 9.4 Formulations of Eddy and Mean-Flow Transport. - 9.5 Dispersive Wave Transport: Irreversible Mixing of Tracers. - 9.6 Troposphere-Stratosphere Exchange. - 9.7 Transport Modeling. - Appendix 9A. The Transformed Eulerian-Mean Transport for Small-Arnplitude Eddies. - References. - Chapter 10 The Ozone Layer. - 10.1 Introduction. - 10.2 The Climatology of Ozone. - 10.3 Elementary Aspects of Photochemical Modeling. - 10.4 Photochemistry of Ozone: Catalytic Cycles. - 10.5 Models of the Natural and Perturbed Ozone Layer. - Appendix 10A. The Continuity Equation for Chemical Species. - References. - Chapter 11 General Circulation Modeling. - 11.1 Models of the Lower Stratosphere. - 11.2 The GFDL SKYHI Model. - 11.3 Forecasting of Sudden Stratospheric Warmings. - 11.4 Transport Modeling. - References. - Chapter 12 Interaction between the Middle Atmosphere and the Lower Atmosphere. - 12.1 Introduction. - 12.2 Radiative Links: Deductions from Simple Models. - 12.3 Radiative Links: Deductions from GCMs. - 12.4 Dynamical Links: Vertically Propagating Planetary Waves. - 12.5 Interannual Variability in the Stratosphere. - References. - Bibliography. - Index.
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  • 84
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Dazugehörige Bände
    Signatur: ZSP-168-33
    In: Berichte zur Polarforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: 204 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Serie: Berichte zur Polarforschung 33
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 85
    Schriftenreihen ausleihbar
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Dazugehörige Bände
    Signatur: ZSP-168-38
    In: Berichte zur Polarforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: 110 S. : graph. Darst.
    ISSN: 0176-5027
    Serie: Berichte zur Polarforschung 38
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 86
    Monographie ausleihbar
    Monographie ausleihbar
    Chichester [u.a.] : Wiley
    Signatur: PIK M 370-92-0667 ; AWI A13-92-0307
    Materialart: Monographie ausleihbar
    Seiten: XV, 217 S. , Ill., graph. Darst.
    ISBN: 0471914622
    Serie: Research and developments in climate and climatology
    Sprache: Englisch
    Anmerkung: Contents: Preface. - Acknowledgements. - Chapter 1 Climate. - 1.1 The components of climate. - 1.2 Climate modelling and climate prediction. - 1.3 Climate changes and human perception. - 1.4 Feedback mechanisms in climate. - 1.4.1 The ice-albedo feedback mechanism. - 1.4.2 The water vapour “greenhouse”. - 1.4.3 Cloud feedbacks. - 1.4.4 Combining feedback effects. - 1.5 Perturbations on the climate system. - 1.5.1 External causes of climatic change. - 1.5.2 Internal causes of climatic change. - 1.6 Range of questions for climate modelling. - Recommended reading. - Chapter 2 A history of and introduction to climate models. - 2.1 Introducing climate modelling. - 2.2 Types of climate models. - 2.2.1 Energy balance climate models. - 2.2.2 One-dimensional radiative-convective climate models. - 2.2.3 Two-dimensional climate models. - 2.2.4 General circulation climate models. - 2.3 History of climate modelling. - 2.4 Sensitivity of climate models. - 2.5 Parameterization of climatic processes. - 2.6 Simulation of the full, interacting climate system: one goal of modelling. - Chapter 3 Energy balance models. - 3.1 Balancing the planetary radiation budget. - 3.2 The structure of energy balance models. - 3.3 Parameterizing the climate system for energy balance models. - 3.4 A BASIC energy balance climate model. - 3.5 Experiments with energy balance models. - 3.5.1 Explicit modelling of the cryosphere. - 3.6 Box models — another form of energy balance model. - 3.6.1 A simple box model of the ocean-atmosphere. - 3.6.2 A coupled atmosphere, land and ocean energy balance box model. - 3.7 Energy balance models: deceptively simple models. - Recommended reading. - Chapter 4 Radiative-convective models. - 4.1 The concept of a radiative-convective climate model. - 4.2 The structure of global radiative-convective models. - 4.3 Radiation computation. - 4.3.1 Shortwave radiation. - 4.3.2 Longwave radiation. - 4.3.3 Eleat balance at the ground. - 4.4 Convective adjustment. - 4.5 Sensitivity experiments with radiative-convective models. - 4.6 Development of radiative-convective models. - 4.6.1 Cloud amount and height predicted from ‘convection’. - 4.6.2 A water vapour transport model. - 4.7 Radiation: the driver of climate. - Recommended reading. - Chapter 5 Two-dimensional models. - 5.1 Why two-dimensional models?. - 5.2 Two-dimensional statistical dynamical climate models. - 5.3 Convection, cloud cover and precipitation in two-dimensional statistical dynamical models. - 5.4 Radiation and surface characterization in two-dimensional statistical dynamical models. - 5.4.1 Radiation. - 5.4.2 Surface characterization. - 5.5 Intercomparison of a two-and a three-dimensional model. - 5.6 Other types of two-dimensional models. - 5.6.1 An upgraded energy balance model. - 5.6.2 A severely truncated spectral general circulation climate model. - 5.7 Why are some climate modellers Flatlanders?. - Recommended reading. - Chapter 6 General circulation climate models. - 6.1 The structure of general circulation climate models. - 6.2 Dynamics in general circulation climate models. - 6.2.1 Cartesian (or rectangular) grid general circulation climate models. - 6.2.2 Spectral general circulation climate models. - 6.3 Physics in general circulation climate models. - 6.3.1 Radiative transfer. - 6.3.2 Boundary layer. - 6.3.3 Surface parameterization. - 6.3.4 Convection. - 6.3.5 Large scale rainfall. - 6.4 Including ‘other’ elements in general circulation climate models. - 6.4.1 Cloud prediction. - 6.4.2 Modelling the cryosphere. - 6.5 Land surface parameterization in general circulation climate models. - 6.6 Coupled ocean-atmosphere general circulation climate models. - 6.7 Future climate projects and their importance to general circulation climate models. - 6.8 Epilogue. - Recommended reading. - Appendices. - A. Glossary. - B. Climate models: examples of simple microcomputer software. - I. Daisyworld: a simple biospheric feedback climate model. - II. Modelling the climatic impact of anthropogenerated albedo change. - III. An energy balance climate model (EBM). - IV. Carbon dioxide feedback using a simple ocean model. - General Bibliography. - Index.
    Standort: A 18 - Bitte bestellen
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  • 87
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Dazugehörige Bände
    Signatur: ZSP-558-24 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Materialart: Schriftenreihen ausleihbar
    Seiten: 97 S.
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 88
    Monographie ausleihbar
    Monographie ausleihbar
    New York [u.a.] : Springer
    Signatur: M 93.0653 ; AWI A6-92-0220
    Materialart: Monographie ausleihbar
    Seiten: xiv, 710 S.
    Ausgabe: 2. ed., corr. 2. printing
    ISBN: 038796388X
    Klassifikation:
    Geodynamik
    Sprache: Englisch
    Anmerkung: Contents: 1 Preliminaries. - 1.1 Geophysical Fluid Dynamics. - 1.2 The Rossby Number. - 1.3 Density Stratification. - 1.4 The Equations of Motion in a Nonrotating Coordinate Frame. - 1.5 Rotating Coordinate Frames. - 1.6 Equations of Motion in a Rotating Coordinate Frame. - 1.7 Coriolis Acceleration and the Rossby Number. - 2 Fundamentals. - 2.1 Vorticity. - 2.2 The Circulation. - 2.3 Kelvin's Theorem. - 2.4 The Vorticity Equation. - 2.5 Potential Vorticity. - 2.6 The Thermal Wind. - 2.7 The Taylor-Proudman Theorem. - 2.8 Geostrophic Motion. - 2.9 Consequences of the Geostrophic and Hydrostatic Approximations. - 2.10 Geostrophic Degeneracy. - 3 lnviscid Shallow-Water Theory. - 3.1 Introduction. - 3.2 The Shallow-Water Model. - 3.3 The Shallow-Water Equations. - 3.4 Potential-Vorticity Conservation: Shallow-Water Theory. - 3.5 Integral Constraints. - 3.6 Small-Amplitude Motions. - 3.7 Linearized Geostrophic Motion. - 3.8 Plane Waves in a Layer of Constant Depth. - 3.9 Poincare and Kelvin Waves. - 3.10 The Rossby Wave. - 3.11 Dynamic Diagnosis of the Rossby Wave. - 3.12 Quasigeostrophic Scaling in Shallow-Water Theory. - 3.13 Steady Quasigeostrophic Motion. - 3.14 Inertial Boundary Currents. - 3.15 Quasigeostrophic Rossby Waves. - 3.16 The Mechanism for the Rossby Wave. - 3.17 The Beta-Plane. - 3.18 Rossby Waves in a Zonal Current. - 3.19 Group Velocity. - 3.20 The Method of Multiple Time Scales. - 3.21 Energy and Energy Flux in Rossby Waves. - 3.22 The Energy Propagation Diagram. - 3.23 Reflection and the Radiation Condition. - 3.24 Rossby Waves Produced by an Initial Disturbance. - 3.25 Quasigeostrophic Normal Modes in Closed Basins. - 3.26 Resonant Interactions. - 3.27 Energy and Enstrophy. - 3.28 Geostrophic Turbulence. - Appendix to Chapter 3. - 4 Friction and Viscous Flow. - 4.1 Introduction. - 4.2 Turbulent Reynolds Stresses. - 4.3 The Ekman Layer. - 4.4 The Nature of Nearly Frictionless Flow. - 4.5 Boundary-Layer Theory. - 4.6 Quasigeostrophic Dynamics in the Presence of Friction. - 4.7 Spin-Down. - 4.8 Steady Motion. - 4.9 Ekman Layer on a Sloping Surface. - 4.10 Ekman Layer on a Free Surface. - 4.11 Quasigeostrophic Potential Vorticity Equation with Friction and Topography. - 4.12 The Decay of a Rossby Wave. - 4.13 Side-Wall Friction Layers. - 4.14 The Dissipation of Ens trophy in Geostrophic Turbulence. - 5 Homogeneous Models of the Wind-Driven Oceanic Circulation. - 5.1 Introduction. - 5.2 The Homogeneous Model. - 5.3 The Sverdrup Relation. - 5.4 Meridional Boundary Layers: the Munk Layer. - 5.5 Stommel's Model: Bottom Friction Layer. - 5.6 Inertial Boundary-Layer Theory. - 5.7 Inertial Currents in the Presence of Friction. - 5.8 Rossby Waves and the Westward Intensification of the Oceanic Circulation. - 5.9 Dissipation Integrals for Steady Circulations. - 5.10 Free Inertial Modes. - 5.11 Numerical Experiments. - 5.12 Ekman Upwelling Circulations. - 5.13 The Effect of Bottom Topography. - 5.14 Concluding Remarks on the Homogeneous Model. - 6 Quasigeostrophic Motion of a Stratified Fluid on a Sphere. - 6.1 Introduction. - 6.2 The Equations of Motion in Spherical Coordinates: Scaling. - 6.3 Geostrophic Approximation: ε = O(L/r0 ) ≪ 1. - 6.4 The Concept of Static Stability. - 6.5 Quasigeostrophic Potential-Vorticity Equation for Atmospheric Synoptic Scales. - 6.6 The Ekman Layer in a Stratified Fluid. - 6.7 Boundary Conditions for the Potential-Vorticity Equation: the Atmosphere. - 6.8 Quasigeostrophic Potential-Vorticity Equation for Oceanic Synoptic Scales. - 6.9 Boundary Conditions for the Potential-Vorticity Equation: the Oceans. - 6.10 Geostrophic Energy Equation and Available Potential Energy. - 6.11 Rossby Waves in a Stratified Fluid. - 6.12 Rossby-Wave Normal Modes: the Vertical Structure Equation. - 6.13 Forced Stationary Waves in the Atmosphere. - 6.14 Wave-Zonal Flow Interactions. - 6.15 Topographic Waves in a Stratified Ocean. - 6.16 Layer Models. - 6.17 Rossby Waves in the Two-Layer Model. - 6.18 The Relationship of the Layer Models to the "Level" Models. - 6.19 Geostrophic Approximation ε ≪ L/r0 〈 1; the Sverdrup Relation. - 6.20 Geostrophic Approximation ε ≪ 1, L/r0 = O(1). - 6.21 The Thermocline Problem. - 6.22 Layer Models of the Thermocline. - 6.23 Flow in Unventilated Layers: Potential Vorticity Homogenization. - 6.24 Quasigeostrophic Approximation: an Alternative Derivation. - 7 Instability Theory. - 7.1 Introduction. - 7.2 Formulation of the Instability Problem: the Continuously Stratified Model. - 7.3 The Linear Stability Problem: Conditions for Instability. - 7.4 Normal Modes. - 7.5 Bounds on the Phase Speed and Growth Rate. - 7.6 Baroclinic Instability: the Basic Mechanism. - 7.7 Eady's Model. - 7.8 Charney's Model and Critical Layers. - 7.9 Instability in the Two-Layer Model: Formulation. - 7.10 Normal Modes in the Two-Layer Model: Necessary Conditions for Instability. - 7.11 Baroclinic Instability in the Two-Layer Model: Phillips' Model. - 7.12 Effects of Friction. - 7.13 Baroclinic Instability of Nonzonal Flows. - 7.14 Barotropic Instability. - 7.15 Instability of Currents with Horizontal and Vertical Shear. - 7.16 Nonlinear Theory of Baroclinic Instability. - 7.17 Instability of Non parallel Flow. - 8 Ageostrophic Motion. - 8.1 Anisotropic Scales. - 8.2 Continental-Shelf Waves. - 8.3 Slow Circulation of a Stratified, Dissipative Fluid. - 8.4 The Theory of Frontogenesis. - 8.5 Equatorial Waves. - Selected Bibliography. - Index.
    Standort: Kompaktmagazin oben
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  • 89
    Signatur: AWI Bio-18-91560-2
    In: Flora in desertis Reipublicae Populorum Sinarum, Tomus 2
    Materialart: Monographie ausleihbar
    Seiten: III, 464 S. , Ill.
    Sprache: Chinesisch , Latein
    Anmerkung: Contents: Papaveraceae. - 1. Glaucium Mill. - 2. Papaver L. - 3. Hypecoum L. - 4. Corydalis Vent. - 5. Fumaria L. - Capparidaceae. - 1. Capparis L. - Cruciferae. - 1. Spirorrhynchus Kar. et Kir. - 2. Tauscheria Fisch. ex. DC. - 3. Isatis L. - 4. Pachypterygium Bge. - 5. Pugionium Gaertn. - 6. Cardaria Desv. - 7. Litwinowia Woron. - 8. Goldbachia DC. - 9. Hymenolobus Nutt. ex Torr. et Gray. - 10. Thlaspi L. - 11. Lepidium L. - 12. Berteroa DC. - 13. Microstigma Trautv. - 14. Lachnoloma Bge. - 15. Euclidium R. Br. - 16. Alyssum L. - 17. Ptilotrichum C. A. Mey. - 18. Camelina Crantz. - 19. Draba L. - 20. Megacarpaea DC. - 21. Capsella Medic. - 22. Rorippa Scop. - 23. Diptychocarpus Trautv. - 24. Chorispora R. Br. ex DC. - 25. Thellungiella O E. Schluz. - 26. Conringia Heist. ex Fabr. - 27. Turritis L. - 28. Synstemon Botsch. - 29. Dontostemon Andrz. ex C. A. Mey. - 30. Dimorphostemon Kitag. - 31. Clausia Korn.-Tr. - 32. Sterigmostemum M. B. - 33. Leptaleum DC. - 34. Tetracme Bge. - 35. Matthiola R. Br. - 36. Erysimum L. - 37. Syrenia Andrz. ex Bess. - 38. Torularia O. E. Schulz. - 39. Malcolmia R. Br. - 40. Arabidopsis (DC.) Heynh. - 41. Sisymbrium L. - 42. Eruca Mill. - 43. Descurainia Webb et Berth. - Crassulaceae. - 1. Orostachys Fisch. - 2. Sedum L. - Saxifragaceae. - 1. Parnassia L. - 2. Ribes L. - Rosaceae. - I. Spiraeoideae Agardh. - 1. Spiraea L. - II. Maloideae Weber. - 1. Cotoneaster B. Ehrhart. - 2. Crataegus L. - 3. Pyrus L. - 4. Malus Mill. - 5. Cydonia Mill. - III. Rosoideae Focke. - 1. Rosa L. - 2. Potaninia Maxim. - 3. Agrimonia L. - 4. Sanguisorba L. - 5. Rubus L. - 6. Geum L. - 7. Fragaria L. - 8. Potentilla L. - 9. Comarum L. - 10. Sibbalida L. - 11. Chamaerhodos Bge. - IV. Prunoideae Focke. - 1. Prinsepia Royle. - 2. Prunus L. - Leguminosae. - I. Mimosoideae Taub. - 1. Albizzia Durazz. - II. Caesalpinioideae Taub. - 1. Gleditsia L. - III. Papilionatae Taub. - 1. Eremosparton Fisch. et Mey. - 2. Sophora L. - 3. Ammodendron Fisch. - 4. Ammopiptanthus Cheng f. - 5. Thermopsis R. Br. - 6. Oronis L. - 7. Crotalaria L. - 8. Alhagi Gagneb. - 9. Lotus L. - 10. Kummerowia Schindl. - 11. Lespedeza Michx. - 12. Campylotropis Bge. - 13. Glycine Willd. - 14. Trifolium L. - 15. Melilotus Adans. - 16. Trigonella L. - 17. Melissitus Medic. - 18. Medicago L. - 19. Halimodendron Fisch. - 20. Vicia L. - 21. Lathyrus L. - 22. Amorpha L. - 23. Indigofera L. - 24. Robinia L. - 25. Swainsonia Salisb. (Sphaerophysa DC.). - 26. Caragana Fabr. - 27. Calophaca Fisch. - 28. Chesneya Lindl. - 29. Glycyrrhiza L. - 30. Hedysarum L. - 31. Oxytropis DC. - 32. Astragalus L. - 33. Gueldenstaedtia Fisch. (Amblytropis Kitag.). - Geraniaceae. - 1. Erodium L'Herit. - 2. Geranium L. - 3. Bieberstenia Steph. ex. Fisch. - Linaceae. - 1. Linum L. - Zygophyllaceae. - 1. Nitraria L. - 2. Peganum L. - 3. Zygophyllum L. - 4. Tribulus L. - 5. Tetraena Maxim. - Rutaceae. - 1. Phellodendron Rupr. - 2. Haplophyllum Adr. Juss. - Simaroubaceae. - 1. Ailanthus Desf. - Polygalaceae. - 1. Polygala L. - Euphorbiaceae. - 1. Chrozophora Adr. Juss. - 2. Speranskia Baill. - 3. Securinega Comm. ex Adr. Juss. - 4. Euphorbia L. - Callitrichaceae. - 1. Callitriche L. - Anacardiaceae. - 1. Pistacia L. - Celastraceae. - 1. Euonymus L. - 2. Celastrus L. - Aceraceae. - 1. Acer L. - Sapindaceae. - 1. Xanthoceras Bge. - 2. Koelreuteria Laxm. - Rhamnaceae. - 1. Rhamnus L. - 2. Ziziphus Mill. - Vitaceae. - 1. Vitis L. - 2. Ampelopsis Michx. - Tiliaceae. - 1. Tilia L. - Malvaceae. - 1. Malva L. - 2. Althaea L. - 3. Hibiscus L. - Guttiferae. - 1. Hypericum L. - Frankeniaceae. - 1. Frankenia L. - Tamaricadeae. - 1. Reamuria L. (Hololachne Ehrenb.). - 2. Tamarix L. - 3. Myricaria Desv. - Cistaceae. - 1. Helianthemum Mill. - Violaceae. - 1. Viola L. - Thymelaeacaae. - 1. Diarthron Turcz. - 2. Stellera L. - 3. Wikstroemia Endl. - Elaeagnaceae. - 1. Elaeagnus L. - 2. Hippophaë L. - Lythraceae. - Lythrum L. - Trapaceae. - 1. Trapa L. - Onagraceae. - 1. Epilobium L. - Haloragaceae. - 1. Myriophyllum L. - Hippuridaceae. - Hippuris L. - Cynomoriaceae. - 1. Cynomorium L. - Umbelliferae. - 1. Daucus L. - 2. Foeniculum Mill. - 3. Bupleurum L. - 4. Sium L. - 5. Aegopodium L. - 6. Sphallerocarpus Bess. ex. DC. - 7. Heracleum L. - 8. Ferula L. - 9. Seseli L. - 10. Schumannia Kuntze. - 11. Libanotis Hill. - 12. Saposhnikovia Schisck. - 13. Cicuta L. - 14. Oenanthe L. - 15. Cenolophium Koch. - 16. Carum L. - 17. Cnidium Cuss. - 18. Soranthus Ledeb. - 19. Archangelica N. M. Wolf. - Addenda Diagnoses Taxorum Novarum. , Titel und Text in chines. Schr. , Nomenclature also in Latin.
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  • 90
    Signatur: AWI E1-89-0347
    Materialart: Monographie ausleihbar
    Seiten: 50 Seiten , Illustrationen
    Sprache: Englisch
    Anmerkung: Contents: Preface. - Part I German oceanographic institutions. - Part II German oceanographic expeditions. - Part III German oceanographers. - References.
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  • 91
    Signatur: ZSP-SCAR-570-9
    In: National Antarctic Research Report to SCAR, No. 9
    Materialart: Schriftenreihen ausleihbar
    Seiten: 34 Seiten
    ISSN: 0179-0072
    Serie: National Antarctic Research Report to SCAR 9
    Sprache: Englisch
    Anmerkung: Contents: Membership of the National Committee on Antarctic Research in the Federal Republic of Germany. - Members of Permanent Working Groups and Groups of Specialists of SCAR. - Introduction. - Stations. - I. Record of Activities (past and ongoing), April 1986 - October 1987. - II. Planned Activities, October 1987 - October 1988. - References. - Addenda to Former Reports. - Index of Activities.
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  • 92
    Signatur: ZSP-292-438
    In: Freiberger Forschungshefte, 438
    Materialart: Schriftenreihen ausleihbar
    Seiten: 38 Seiten , Illustrationen
    Ausgabe: 1. Auflage
    ISBN: 3-342-00952-7
    ISSN: 0071-9404
    Serie: Freiberger Forschungshefte : C 438 : Geowissenschaften - Geologie
    Sprache: Deutsch
    Standort: AWI Archiv
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  • 93
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-87/19
    In: CRREL Report, 87-19
    Beschreibung / Inhaltsverzeichnis: The approximate heat balance integral method (HBIM) is extended to the case of a medium with variable properties such as snow. The case of linear variation of thermal conductivity was investigated. An alternative heat balance integral method (AHBIM) was developed. Both constant surface temperature and surface heat flux were considered. A comparison was made of the temperature distribution from the HBIM, AHBIM and an analytical method for the case of constant surface temperature. In general, results agree quite well with the analytical method for small values of dimensionless time τ, but the difference becomes more pronounced as τ increases. It was found that the AHBIM with a quadratic temperature profile gave a somewhat better result, especially when the value of the dimensionless distance η is small. For a specific property function of E(η) = eη, closed form solutions were obtained. The results, when compared with those from HBIM, AHBIM and the analytical method were found to agree exceptionally well with the analytical method, especially for large values of τ.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 26 Seiten , Illustrationen
    Serie: CRREL Report 87-19
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Mathematical analysis Constant surface temperature Constant surface heat flux Comparison with exact solution Alternative method Conclusions and comments Literature cited Appendix A: Derivation of equation 25 Appendix B: Derivations of equations 37 and 40 Appendix C: Derivation of equations 37a and 40
    Standort: AWI Archiv
    Zweigbibliothek: AWI Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 94
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-87/15
    In: CRREL Report, 87-15
    Beschreibung / Inhaltsverzeichnis: Constant strain-rate tension tests were conducted on remolded saturated frozen Fairbanks silt at various temperatures, strain rates, and densities. It was found that the critical strain rate of the ductile-brittle transition is not temperature-dependent at temperatures down to -5°C, but varies with density. The peak tensile strength decreases considerable with decreasing strain rate for ductile failure, but it decreases slightly with increasing strain rate for brittle fracture. The failure strain remains almost constant at temperatures lower than about -2°C, but it varies with density and strain rate at -5°C. The initial tangent modulus is independent of strain rate and increases with decreasing temperature and density.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 29 Seiten , Illustrationen
    Serie: CRREL Report 87-15
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Testing Material Specimen preparation Testing procedure and apparatus Results Discussion Peak tensile strength, σm Failure tensile strain, ϵf Initial tangent modulus and 50% peak strength modulus Discussion of test techniques Conclusions Literature cited Appendix A: Physical properties of Fairbanks silt specimens Appendix B: Unfrozen water content data of Fairbanks silt with three typical water contents
    Standort: AWI Archiv
    Zweigbibliothek: AWI Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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