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  • 1
    Call number: AWI G6-19-92375
    In: Berichte / Christian-Albrechts-Universität zu Kiel, Institut für Geowissenschaften, Nr. 9
    Type of Medium: Monograph available for loan
    Pages: 278 Seiten , Illustrationen
    ISSN: 0175-9302
    Series Statement: Berichte / Christian-Albrechts-Universität zu Kiel, Institut für Geowissenschaften 9
    Language: German
    Note: 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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  • 2
    Call number: AWI A3-20-93434-2
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 2
    Type of Medium: Series available for loan
    Pages: 218 Seiten , Illustrationen
    Series Statement: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,2
    Language: German
    Note: 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
    Call number: AWI A3-20-93434
    In: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin, Band XXXII, Heft 1
    Type of Medium: Series available for loan
    Pages: 121 Seiten , Illustrationen
    Series Statement: Meteorologische Abhandlungen / Institut für Meteorologie und Geophysik der Freien Universität Berlin 32,1
    Language: German
    Note: 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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  • 4
    Call number: AWI P1-14-0015 ; PIK N 454-14-0080
    Description / Table of Contents: Contents: - 1 Land, Leute und Bodenschätze. - 1.1 Die Arktis und ihre Grenzen: eine physisch-geographische Einführung. - 1.2 Geologische Entwicklung und tektonischer Bau der Antarktis. - 1.3 Geschichte der antarktischen Entdeckungen. - 1.4 Abriss der Geschichte der Entdeckung der Arktis. - 1.5 Die indigenen Völker im Norden: frühere und gegenwärtige Entwicklungen. - 1.6 Die mittelalterliche Besiedlung Westgrönlands durch die Wikinger - ein fehlgeschlagenes Experiment?. - 1.7 Permafrost - ein weit verbreitetes Klimaphänomen der Arktis und Subarktis. - 1.8 Die Geologie der Arktis, ihre Bodenschätze und ihr rechtlicher Status. - 2 Meeresströmung, Stürme und Eis. - 2.1 Struktur, Dynamik und Bedeutung des antarktischen Wasserringes. - 2.2 Wassermassenänderungen im Arktischen Ozean. - 2.3 Änderungen in der Nordatlantischen Tiefenwasserbildung und ihre Auswirkungen auf das Europäische Klima. - 2.4 Roaring Forties und Riesenwellen - Gefahren im Südpolarmeer. - 2.5 Polare Mesozyklonen: Die Hurrikane der Polargebiete. - 2.6 Die Wechselwirkung zwischen antarktischen Schelfeisgebieten und dem Ozean und der Beitrag zur ozeanischen Wassermassenbildung. - 2.7 Die Massenbilanzen des antarktischen und grönländischen Inlandeises und der Charakter ihrer Veränderungen. - 2.8 Veränderung der Dicke und Ausdehnung des Polarmeereises. - 3 Flora, Fauna und Ökosysteme. - 3.1 Flora und Vegetation des terrestrischen Bereichs. - 3.2 Ökophysiologie und Wachstum arktischer Pflanzen im Klimawandel. - 3.3 Das Meereis als Lebensraum. - 3.4 Einfluss von Fischerei und Klima auf die Bestände des antarktischen Krill. - 3.5 Klimabedingte ökologische Veränderungen in den Bodenfaunen polarer Schelfmeere. - 3.6 Die Fische des Nord- und Südpolarmeeres. - 3.7 Vogelwelt der Polarregionen und ihre Gefährdung. - 3.8 Robben und Robbenschlag in der Antarktis. - 3.9 Arktische Robben und Eisbären - Auswirkungen von Klimaerwärmung und Ressourcennutzung. - 3.10 Warnsignale Walfang. - 3.11 Marine Biodiversität in den Polarregionen nach der Volkszählung der Meere. - 4 Das Weltklima und die Polarregionen. - 4.1 Wechselwirkungen zwischen arktischem Meereis und der atmosphärischen Zirkulation. - 4.2 Niederschläge in den Polarregionen und ihre Erfassung. - 4.3 Atmosphärische Messungen an der AWIPEV Station Spitzbergen. - 4.4 Das Polarlicht. - 4.5 Erwärmung der Polarregionen in den letzten 50 Jahren: Ursachen und Folgen. - 4.6 Verhalltes Warnsignal: Die Erwärmung ds Nordpolargebietes während der ersten Hälfte des 20. Jahrhunderts. - 4.7 Die Rolle ozeanischer Wärmetransporte für das Klima der Arktis im letzten Jahrtausend. - 4.8 Polareiskerne - Archive globaler Klima- und Umweltveränderungen. - 4.9 Die polaren Meeressedimente als Archiv des Weltklimas. - 4.10 Der katabatische Wind über den polaren Eisschilden. - 4.11 Meeresspiegelanstieg - Eisschilde, Gletscher und thermische Ausdehnung: eine kurze Übersicht. - 4.12 Anmerkungen über Veränderungen in den Eisströmen der Eisschilde. - 4.13 Permafrostbeeinflusste Böden (Kryosole) im Klimawandel. - 4.14 Methanhydrate in arktischen Sedimenten - Einfluss auf Klima und Stabilität der Kontinentalränder. - 5 Forschung, Gefährdung und Schutz. - 5.1 Über die deutschen Forschungsaktivitäten in den Polarregionen. - 5.2 Rückgang des Ozons in der Stratosphäre der Polarregionen. - 5.3 Ausbreitung von Schadstoffen in die Polarregionen. - 5.4 Anreicherung und Effekte von organischen Schadstoffen in der polaren Umwelt. - 5.5 Tourismus und seine Auswirkungen. - 5.6 Globale Gefahren durch intensive Nutzung der Taiga-Wälder. - 5.7 Die Nutzung von Öl- und Gasvorkommen in einer nahezu eisfreien Arktis. - 5.8 Antarktis im Spannungsfeld zwischen Forschung, Tourismus und Umweltschutz. - 5.9 Meeresschutzgebiete in der Antarktis: Lassen sich Schutz- und Fischerei-Interessen verbinden?. - 5.10 Gebietsstreitigkeiten in der Arktis - Ist eine friedliche Beilegung mittels Abgrenzung erreichbar?. - 5.11 Umweltschutz in einer Arktis im Wandel. - 6 Sachregister.
    Description / Table of Contents: Die Polarregionen üben trotz ihrer abgelegenen Lage einen erheblichen Einfluss auf das Weltklima aus. Dies hängt besonders mit den bedeutenden Kopplungsprozessen zwischen dem Eis (Eisschilde, Meereis, Schnee und Permafrost) und der atmosphärischen sowie ozeanischen Zirkulation zusammen. Das Abschmelzen aller polaren Eisschilde würde beispielsweise einen globalen Anstieg des Meeresspiegels um etwa 70 m bewirken. Aber auch schon geringe Schwankungen im polaren Eisvolumen führen zu merklichen Veränderungen des Meeresspiegels. Die Klima-Prognosen der letzen Jahre haben sich weitgehend bestätigt. Die heutigen Messungen zeigen sogar, dass sich das Klima eher schneller ändert als erwartet. Die beobachtete Erderwärmung während des 20. Jahrhunderts hat sich in diesem Jahrhundert fortgesetzt; zurzeit beträgt die mittlere globale Erwärmung über den Kontinenten bereit 0,9°C. Diese Entwicklung wird sich fortsetzen, wenn die Anreicherung der Atmosphäre mit Treibhausgasen (vor allem CO2) anhält. Besorgniserregend ist die Tatsache, dass die heute emittierten CO2-Mengen Jahrhunderte in der Atmosphäre verbleiben. Die Folgen des Klimawandels sind vielfältig. Der Meeresspiegelanstieg stieg von 1,7 mm/Jahr in den 1970/80er Jahren auf jetzt 3 mm/Jahr. Der 5. Sachstandsbericht des IPCC (2013) gibt für den Zeitraum 1993 - 2010 einen globalen mittleren Meeresspiegelanstieg von 3,2 mm/Jahr an. Viele Inselstaaten und tief gelegene Küstenländer, die am wenigsten zur Erderwärmung beitragen, werden am härtesten von den Folgen betroffen sein. Sie sind nicht in der Lage, sich mit Dämmen zu schützen. Die Erwärmung ist am stärksten in der nördlichen Polarregion. Die eisbedeckte Fläche hat sich dort fast halbiert. Auch der Westantarktische Eisschild schrumpft; dort gehen 180 km3 Eis jährlich verlären. Zahlreiche polare Arten, zum Beispiel der Eisbär, drohen ihre Lebensräume zu verlieren. Wir befinden uns bereits jetzt in einem Klimawandel, der bei ungenügendem Klimaschutz zu Temperaturen führen kann, die die Erde seit mindestens einer Million Jahre nicht mehr erlebt hat. Studien zeigen, dass der Mensch maßgeblich für den jetzigen Klimawandel verantwortlich ist. Mit diesen und anderen Themen befassen sich rund 100 Experten im vorliegenden Buch. Die Beiträge sind leicht verständlich geschrieben.
    Type of Medium: Monograph available for loan
    Pages: 375 Seiten , Illustrationen
    ISBN: 9783980966863
    Language: German
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  • 5
    Monograph available for loan
    Monograph available for loan
    Chichester : Wiley Blackwell
    Call number: AWI A6-15-0020
    Description / Table of Contents: This book gives a coherent development of the current understanding of the fluid dynamics of the middle latitude atmosphere. lt is primarily aimed at post-graduate and advanced undergraduate level students and does not assume any previous knowledge of fluid mechanics, meteorology or atmospheric science. The book will be an invaluable resource for any quantitative atmospheric scientist who wishes to increase their understanding of the subject. The importance of the rotation of the Earth and the stable stratification of its atmosphere, with their implications for the balance of larger-scale flows, is highlighted throughout. Clearly structured throughout, the first of three themes deals with the development of the basic equations for an atmosphere on a rotating, spherical planet and discusses scale analyses of these equations. The second theme explores the importance of rotation and introduces vorticity and potential vorticity, as well as turbulence. In the third theme, the concepts developed in the first two themes are used to give an understanding of balanced motion in real atmospheric phenomena. lt starts with quasi-geostrophic theory and moves on to linear and nonlinear theories for mid-latitude weather systems and their fronts. The potential vorticity perspective on weather systems is highlighted with a discussion of the Rossby wave propagation and potential vorticity mixing covered in the final chapter.
    Type of Medium: Monograph available for loan
    Pages: XVIII, 408 Seiten , Illustrationen
    ISBN: 9780470795194
    Series Statement: Advancing weather and climate science
    Language: English
    Note: Contents: Series foreword. - Preface. - Select bibliography. - The authors. - 1 Observed flow in the Earth's midlalitudes. - 1.1 Vertical structure. - 1.2 Horizontal structure. - 1.3 Transient activity. - 1.4 Scales of motion. - 1.5 The Norwegian frontal model of cyclones. - Theme 1 Fluid dynamics of the midlatitude atmosphere. - 2 Fluid dynamics in an inertial frame of reference. - 2.1 Definition of fluid. - 2.2 Flow variables and the continuum hypothesis. - 2.3 Kinematics: characterizing fluid flow. - 2.4 Governing physical principles. - 2.5 Lagrangian and Eulerian perspectives. - 2.6 Mass conservation equation. - 2.7 First Law of Thermodynamics. - 2.8 Newton's Second Law of Motion. - 2.9 Bernoulli's Theorem. - 2.10 Heating and water vapour. - 3 Rotating frames of reference. - 3.1 Vectors in a rotating frame of reference. - 3.2 Velocity and Acceleration. - 3.3 The momentum equation in a rotating frame. - 3.4 The centrifugal pseudo-force. - 3.5 The Coriolis pseudo-force. - 3.6 The Taylor-Proudman theorem. - 4 The spherical Earth. - 4.1 Spherical polar coordinates. - 4.2 Scalar equations. - 4.3 The momentum equations. - 4.4 Energy and angular momentum.- 4.5 The shallow atmosphere approximation. - 4.6 The beta effect and the spherical Earth. - 5 Scale analysis and its applications. - 5.1 Principles of scaling methods. - 5.2 The use of a reference atmosphere. - 5.3 The horizontal momentum equations. - 5.4 Natural coordinates, geostrophic and gradient wind balance. - 5.5 Vertical motion. - 5.6 The vertical momentum equation. - 5.7 The mass continuity equation. - 5.8 The thermodynamic energy equation. - 5.9 Scalings for Rossby numbers that are not small. - 6 Alternative vertical coordinates. - 6.1 A general vertical coordinate. - 6.2 Isobaric coordinates. - 6.3 Other pressure-based vertical coordinates. - 6.4 Isentropic coordinates. - 7 Variations of density and the basic equations. - 7.1 Boussinesq approximation. - 7.2 Anelastic approximation. - 7.3 Stratification and gravity waves. - 7.4 Balance, gravity waves and Richardson number. - 7.5 Summary of the basic equation sets. - 7.6 The energy of atmospheric motions. - Theme 2 Rotation in the atmosphere. - 8 Rotation in the atmosphere. - 8.1 The concept of vorticity. - 8.2 The vorticity equation. - 8.3 The vorticity equation for approximate sets of equations. - 8.4 The solenoidal term. - 8.5 The expansion/contraction term. - 8.6 The stretching and tilting terms. - 8.7 Friction and vorticity. - 8.8 The vorticity equation in alternative vertical coordinates. - 8.9 Circulation. - 9 Vorticity and the barotropic vorticity equation. - 9.1 The barotropic vorticity equation. - 9.2 Poisson's equation and vortex interactions. - 9.3 Flow over a shallow hill. - 9.4 Ekman pumping. - 9.5 Rossby waves and the beta plane. - 9.6 Rossby group velocity. - 9.7 Rossby ray tracing. - 9.8 Inflexion point instability. - 10 Potential vorticity. - 10.1 Potential vorticity. - 10.2 Alternative derivations of Ertel's theorem. - 10.3 The principle of invertibility. - 10.4 Shallow water equation potential vorticity. - 11 Turbulence and atmospheric flow. - 11.1 The Reynolds number . - 11.2 Three-dimensional flow at large Reynolds number. - 11.3 Two-dimensional flow at large Reynolds number. - 11.4 Vertical mixing in a stratified fluid. - 11.5 Reynolds stresses. - Theme 3 Balance in atmospheric flow. - 12 Quasi-geostrophic flows. - 12.1 Wind and temperature in balanced flows. - 12.2 The quasi-geostrophic approximation. - 12.3 Quasi-geostrophic potential vorticity. - 12.4 Ertel and quasi-geostrophic potential vorticities. - 13 The omega equation. - 13.1 Vorticity and thermal advection form. - 13.2 Sutcliffe Form. - 13.3 Q-vector form. - 13.4 Ageostrophic flow and the maintenance of balance. - 13.5 Balance and initialization. - 14 Linear theories of baroclinic instability. - 14.1 Qualitative discussion. - 14.2 Stability analysis of a zonal flow. - 14.3 Rossby wave interpretation of the stability conditions. - 14.4 The Eady model. - 14.5 The Charney and other quasi-geostrophic models. - 14.6 More realistic basic states. - 14.7 Initial value problem. - 15 Frontogenesis. - 15.1 Frontal scales. - 15.2 Ageostrophic circulation. - 15.3 Description of frontal collapse. - 15.4 The semi-geostrophic Eady model. - 15.5 The confluence model. - 15.6 Upper-level frontogenesis. - 16 The nonlinear development of baroclinic waves. - 16.1 The nonlinear domain. - 16.2 Semi-geostrophic baroclinic waves. - 16.3 Nonlinear baroclinic waves on realistic jetson the sphere. - 16.4 Eddy transports and zonal mean flow changes. - 16.5 Energetics of baroclinic waves. - 17 The potential vorticity perspective. - 17.1 Setting the scene. - 17.2 Potential vorticity and vertical velocity. - 17.3 Life cycles of some baroclinic waves. - 17.4 Alternative perspectives. - 17.5 Midlatitude blocking. - 17.6 Frictional and heating effects. - 18 Rossby wave propagation and potential vorticity mixing. - 18.1 Rossby wave propagation. - 18.2 Propagation of Rossby waves into the stratosphere. - 18.3 Propagation through a slowly varying medium. - 18.4 The Eliassen-Palm flux and group velocity. - 18.5 Baroclinic life cycles and Rossby waves. - 18.6 Variations of amplitude. - 18.7 Rossby waves and potential vorticity steps. - 18.8 Potential vorticity steps and the Rhines scale. - Appendices. - Appendix A: Notation. - Appendix B: Revision of vectors and vector calculus. - B.1 Vectors and their algebra. - B.2 Products of vectors. - B.3 Scalar fields and the grad operator. - B.4 The divergence and curl operators. - B.5 Gauss' and Stokes' theorems. - B.6 Some useful vector identities. - Index.
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  • 6
    Monograph available for loan
    Monograph available for loan
    Berlin : Nordeuropa-Inst. der Humboldt-Univ.
    Call number: AWI P5-17-91081
    Description / Table of Contents: Iceland, Greenland and the Faroe Islands have in common their history as Danish dependencies within a historically and geographically coherent region. The complex aftermaths of Denmark's sovereignty over its North Atlantic territories and their ongoing nation building processes lie at the core of this book. Today, we are witnessing region building processes beyond bilateral links to Denmark. How do the countries position themselves, individually and collectively, vis-à-vis the European metropolitan centres, a larger transcontinental North Atlantic region, the "hot" Arctic, and global histories of colonialism and decolonisation? By examining the region from cultural, literary, historical, political, anthropological and linguistic perspectives, the articles in this book shed light on Nordic colonialism and its understanding as "exceptional", and challenge and modify established notions of postcolonialism. Iceland, Greenland and the Faroe Islands are shown to be both the (former) subjects as well as the producers of cultural hierarchisations in an entangled world.
    Type of Medium: Monograph available for loan
    Pages: 422 S.
    Edition: 1. Aufl.
    ISBN: 9783932406355
    Series Statement: Berliner Beiträge zur Skandinavistik 20
    Language: English
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  • 7
    Monograph available for loan
    Monograph available for loan
    Amsterdam : Elsevier
    Call number: AWI G2-18-91738
    Type of Medium: Monograph available for loan
    Pages: XI, 716 Seiten , Illustrationen
    Edition: third edition
    ISBN: 9780123877826
    Language: English
    Note: Contents: Preface. - Acknowledgments. - 1. Data Acquisition and Recording. - 1.1 Introduction. - 1.2 Basic Sampling Requirements. - 1.3 Temperature. - 1.4 Salinity. - 1.5 Depth or Pressure. - 1.6 Sea-Level Measurement. - 1.7 Eulerian Currents. - 1.8 Lagrangian Current Measurements. - 1.9 Wind. - 1.10 Precipitation. - 1.11 Chemical Tracers. - 1.12 Transient Chemical Tracers. - 2. Data Processing and Presentation. - 2.1 Introduction. - 2.2 Calibration. - 2.3 Interpolation. - 2.4 Data Presentation. - 3. Statistical Methods and Error Handling. - 3.1 Introduction. - 3.2 Sample Distributions. - 3.3 Probability. - 3.4 Moments and Expected Values. - 3.5 Common PDFs. - 3.6 Central Limit Theorem. - 3.7 Estimation. - 3.8 Confidence Intervals. - 3.9 Selecting the Sample Size. - 3.10 Confidence Intervals for Altimeter-Bias Estimates. - 3.11 Estimation Methods. - 3.12 Linear Estimation (Regression). - 3.13 Relationship between Regression and Correlation. - 3.14 Hypothesis Testing. - 3.15 Effective Degrees of Freedom. - 3.16 Editing and Despiking Techniques: The Nature of Errors. - 3.17 Interpolation: Filling the Data Gaps. - 3.18 Covariance and the Covariance Matrix. - 3.19 The Bootstrap and Jackknife Methods. - 4. The Spatial Analyses of Data Fields. - 4.1 Traditional Block and Bulk Averaging. - 4.2 Objective Analysis. - 4.3 Kriging. - 4.4 Empirical Orrhogonal Functions. - 4.5 Extended Empirical Orrhogonal Functions. - 4.6 Cyclostationary EOFs. - 4.7 Factor Analysis. - 4.8 Normal Mode Analysis. - 4.9 Self Organizing Maps. - 4.10 Kalman Filters. - 4.11 Mixed Layer Depth Estimation. - 4.12 Inverse Methods. - 5. Time Series Analysis Methods. - 5.1 Basic Concepts. - 5.2 Stochastic Processes and Stationarity. - 5.3 Correlation Functions. - 5.4 Spectral Analysis. - 5.5 Spectral Analysis (Parametric Methods). - 5.6 Cross-Spectral Analysis. - 5.7 Wavelet Analysis. - 5.8 Fourier Analysis. - 5.9 Harmonic Analysis. - 5.10 Regime Shift Detection. - 5.11 Vector Regression. - 5.12 Fractals. - 6. Digital Filters. - 6.1 Introduction. - 6.2 Basic Concepts. - 6.3 Ideal Filters. - 6.4 Design of Oceanographic Filters. - 6.5 Running-Mean Filters. - 6.6 Godin-Type Filters. - 6.7 Lanczos-window Cosine Filters. - 6.8 Butterworth Filters. - 6.9 Kaiser-Bessel Filters. - 6.10 Frequency-Domain (Transform) Filtering. - References. - Appendix A: Units in Physical Oceanography. - Appendix B: Glossary of Statistical Terminology. - Appendix C: Means, Variances and Moment,Generating Functions for Some Common Continuous Variables. - Appendix D: Statistical Tables. - Appendix E: Correlation Coefficients at the 5% and 1% Levels of Significance for Various Degrees of Freedom v. - Appendix F: Approximations and Nondimensional Numbers in Physical Oceanography. - Appendix G: Convolution. - Index.
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  • 8
    Call number: 9781629487991 (e-book)
    Description / Table of Contents: This book described the current status and possible future changes of the thermokarst (thaw) lakes of western Siberia as dominant forms of landscape and regulators of greenhouse gas exchange within the atmosphere. Thawing permafrost and resulting microbial decomposition of previously frozen organic carbon is one of the most significant terrestrial ecosystem positive feedbacks to a warming climate. Ongoing processes of the permafrost thawing in Western Siberia are likely to increase the surface of water bodies via forming so-called thermokarst lakes, mobilizing the organic carbon (OC) from the soil pool to the rivers and, finally, to the ocean, and thus modifying the fluxes of methane (CH4) and CO2 to the atmosphere. Despite their tremendous importance for green house gazes regulation and hydrological regime control, very little is known about hydrochemistry of western Siberia thaw lakes. This book assesses the variation of major and trace elements (TE) and organic carbon (OC) concentration along the chronosequence of lake development and the latitude profile of variable permafrost abundance; characterizes the colloidal status of TE and distinguishes between the relative proportion of organic and organo-mineral colloids; describes the particularity of microbiological composition of thermokarst lake waters and production/mineralization processes in the water column; and presents the perspective of water chemical composition evolution under the climate change scenario. Each of these aforementioned objectives present a scientific challenge given mainly the paucity of existing information on these important but still very poorly studied ecosystems. Taken together, understanding of these issues and identification and quantification of controlling environmental parameters should produce conceptually new knowledge of biogeochemical processes operating within the Western Siberia Plain with the possibility of extrapolation of generated knowledge to much larger territories of arctic and subarctic permafrost-affected areas. (Imprint: Nova)
    Type of Medium: 12
    Pages: 1 Online-Ressource (179 Seiten) , Illustrationen
    ISBN: 9781629487991 (e-book)
    Series Statement: Biochemistry research trends
    Language: English
    Note: Table of Contents Introduction: Thermokarst Lakes of Western Siberia as Dominant Forms of Landscape and Regulators of Greenhouse Gas Exchange with the Atmosphere Chapter 1. Thermokarst Lakes: Distribution, Cycle of Development, Surface Coverage and Evolution Chapter 2. Sources of Dissolved Components in Thermokarst Lakes Chapter 3. Temperature and Gas Regime Chapter 4. Dissolved Organic Carbon Chapter 5. Microbiology of Thermokarst Lake Systems Chapter 6. Trace Elements in Thermokarst Lakes Chapter 7. Colloids in Thermokarst Lakes Chapter 8. Latitude Profile Gradients of Lakes: Substituting Space for Time Chapter 9. Possible Impact of Climate Warming on Stocks and Fluxes of Carbon and Related Elements in Western Siberian Lakes Conclusions: Thaw Lakes as Indicators of Climate Change References Index
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  • 9
    Call number: AWI A13-19-92242
    Description / Table of Contents: Die Dynamik der Atmosphäre der Erde umfasst einen Bereich von mikrophysikalischer Turbulenz über konvektive Prozesse und Wolkenbildung bis zu planetaren Wellenmustern. Für Wettervorhersage und zur Betrachtung des Klimas über Jahrzehnte und Jahrhunderte ist diese Gegenstand der Modellierung mit numerischen Verfahren. Mit voranschreitender Entwicklung der Rechentechnik sind Neuentwicklungen der dynamischen Kerne von Klimamodellen, die mit der feiner werdenden Auflösung auch entsprechende Prozesse auflösen können, notwendig. Der dynamische Kern eines Modells besteht in der Umsetzung (Diskretisierung) der grundlegenden dynamischen Gleichungen für die Entwicklung von Masse, Energie und Impuls, so dass sie mit Computern numerisch gelöst werden können. Die vorliegende Arbeit untersucht die Eignung eines unstetigen Galerkin-Verfahrens niedriger Ordnung für atmosphärische Anwendungen. Diese Eignung für Gleichungen mit Wirkungen von externen Kräften wie Erdanziehungskraft und Corioliskraft ist aus der Theorie nicht selbstverständlich. Es werden nötige Anpassungen beschrieben, die das Verfahren stabilisieren, ohne sogenannte „slope limiter” einzusetzen. Für das unmodifizierte Verfahren wird belegt, dass es nicht geeignet ist, atmosphärische Gleichgewichte stabil darzustellen. Das entwickelte stabilisierte Modell reproduziert eine Reihe von Standard-Testfällen der atmosphärischen Dynamik mit Euler- und Flachwassergleichungen in einem weiten Bereich von räumlichen und zeitlichen Skalen. Die Lösung der thermischen Windgleichung entlang der mit den Isobaren identischen charakteristischen Kurven liefert atmosphärische Gleichgewichtszustände mit durch vorgegebenem Grundstrom einstellbarer Neigung zu(barotropen und baroklinen)Instabilitäten, die für die Entwicklung von Zyklonen wesentlich sind. Im Gegensatz zu früheren Arbeiten sind diese Zustände direkt im z-System(Höhe in Metern)definiert und müssen nicht aus Druckkoordinaten übertragen werden.Mit diesen Zuständen, sowohl als Referenzzustand, von dem lediglich die Abweichungen numerisch betrachtet werden, und insbesondere auch als Startzustand, der einer kleinen Störung unterliegt, werden verschiedene Studien der Simulation von barotroper und barokliner Instabilität durchgeführt. Hervorzuheben ist dabei die durch die Formulierung von Grundströmen mit einstellbarer Baroklinität ermöglichte simulationsgestützte Studie des Grades der baroklinen Instabilität verschiedener Wellenlängen in Abhängigkeit von statischer Stabilität und vertikalem Windgradient als Entsprechung zu Stabilitätskarten aus theoretischen Betrachtungen in der Literatu
    Type of Medium: Dissertations
    Pages: v, 160 Seiten , Illustrationen, Diagramme
    Language: German
    Note: Inhaltsverzeichnis: 1. Einleitung. - 2. Atmosphärische Gleichungssysteme. - 2.1. Zur Notation. - 2.2. Geometrie im β-Kanal. - 2.3. Gleichungen in Flussform. - 2.4. Euler-Gleichungen. - 2.4.1. Energiegleichung. - 2.4.2. Bewegungsgleichungen. - 2.4.3. Flussform des gesamten Gleichungssystems. - 2.4.4. Schallgeschwindigkeit. - 2.4.5. Druck und Energie. - 2.4.6. Energie als Erhaltungsvariable. - 2.5. Euler-Gleichungen mit Referenzfeld. - 2.6. Linearisierte Euler-Gleichungen. - 2.7. Flachwassergleichungen. - 2.8. Flachwasseräquivalente Dynamik mit Euler-Gleichungen. - 3. Unstetiges Galerkin-Verfahren. - 3.1. Räumliche Diskretisierung. - 3.1.1. Integralform und numerischer Fluss. - 3.1.2. Koeffizientendarstellung der Gleichungen. - 3.1.3. Koordinatentransformation mit Orographie. - 3.1.4. Quadratur. - 3.1.5. Basisfunktionen im Rechteckgitter. - 3.1.6. Diskretisierung von analytischen Anfangsbedingungen. - 3.2. Zeitliche Diskretisierung. - 3.2.1. Expliziter Zeitschritt. - 3.2.2. Semi-impliziter Zeitschritt. - 3.2.3. Skalierung von Einheiten. - 3.2.4. Zeitschrittbestimmung. - 3.3. Randbedingungen. - 3.3.1. Periodische Randbedingungen. - 3.3.2. Reflektive Randbedingungen. - 3.3.3. Spezifische Randbedingungen für Euler-Gleichungen. - 3.3.4. Absorptionsschicht. - 3.4. Diffusion. - 4. Atmosphärische Gleichgewichtszustände. - 4.1. Anforderungen an stationäre Zustände. - 4.1.1. Verschwindende Advektion von Masse und potentieller Temperatur. - 4.1.2. Stationäre Impulsgleichung. - 4.2. Wind ohne Corioliskraft. - 4.3. Geostrophischer Wind. - 4.4. Vorgegebener Grundstrom mit einstellbarer Baroklinität. - 4.4.1. Lösungsalgorithmus. - 4.4.2. Zulässige Windfelder und ihre Definition außerhalb des Modellgebietes. - 4.4.3. Spezialfall konstanten thermischen Windes. - 4.5. Barotroper Grundstrom als analytischer Spezialfall. - 4.6. Charakterisierung der Baroklinität. - 4.7. Geostrophischer Zustand für Flachwassergleichungen. - 5. Numerische Stabilität von Gleichgewichtszuständen und Erhaltungseigenschaften. - 5.1. Polynomiale Balancierung des DG-Verfahrens. - 5.1.1. Ausgangssituation („low0bal0“). - 5.1.2. Isotrope Reduktion des Polynomgrades der Quellterme („low1bal0“). - 5.1.3. Isotrope Polynomgradreduktion von Quelltermen sowie Projektion der Flussfunktion („low1bal1“). - 5.1.4. Volle Balancierung mit selektiver Polynomgradreduktion und Projektion der Flussfunktion („low2bal1“). - 5.2. Konvergenz. - 5.3. Langzeitstabilität und Erhaltungseigenschaften. - 6. Atmosphärische Testfälle. - 6.1. Aufsteigende warme Blase. - 6.2. Schwerewellen. - 6.3. Bergüberströmung. - 6.4. Barotrope Instabilität. - 7. Atmosphärische Instabilitäten in mittleren Breiten. - 7.1. Barotrope Instabilität mit Euler-Gleichungen in 2D und 3D. - 7.1.1. Wavelet-Spektrum. - 7.2. Barokline Instabilität in Abhängigkeit von statischer Stabilität und thermischem Wind. - 7.2.1. Einfluss der statischen Stabilität. - 7.2.2. Einfluss der vertikalen Diskretisierung. - 7.3. Entstehung zyklonaler Wirbel aus baroklin instabilem Grundstrom. - 7.3.1. Konfiguration. - 7.3.2. Entwicklung von Impulsdifferenz. - 7.3.3. Vorticity im Horizontalschnitt. - 7.3.4. Globale Charakterisierung . - 7.4. Langzeitentwicklung aus baroklinen Zuständen. - 7.4.1. Konfiguration. - 7.4.2. Entwicklung von Impulsdifferenz und Energie. - 7.4.3. Vorticity im Horizontalschnitt. - 7.4.4 Globale Charakterisierung. - 7.4.5. Wavelet-Spektrum. - 7.4.6. Zonales Mittel. - 8. Zusammenfassung und Ausblick. - A. Mathematische Aspekte. - A.1. Profilfunktionen. - A.2. Differenzen und Normen. - A.3. Wavelet-Analyse. - A.4. Darstellung aus der Diskretisierung. - A.5. Erhaltungseigenschaften mit Quadratur. - B. Details zu Euler-Gleichungen. - B.1. Vertikale Linearisierung der Euler-Gleichungen für Präkonditionierer des semi-impliziten Zeitschrittes. - B.1.1. Vertikales lineares Gleichungssystem. - B.1.2. Diskretisierung und Matrizen. - B.1.3. Implizites Gleichungssystem. - B.2. Zustände im hydrostatischen Gleichgewicht. - B.2.1. Isotherm. - B.2.2. Polytrop. - B.2.3. Isentrop. - B.2.4. Mehrfach polytrop. - B.2.5. Uniform geschichtet. - B.3. Barokliner Zustand imp-System. - C. Zusätzliche Simulationsdaten. - C.1. Stabilitätskarten zu baroklinen Langzeitsimulationen. - C.2. Wirbelentstehung nahe Oberrand. - C.3. Zusätzliche Horizontalschnitte des baroklinen Langzeitlaufes. - D. Implementierung: Programmpaket Polyflux. - E. Korrekturen zur Veröffentlichung. - Mathematische Definitionen. - Abkürzungen und Begriffe. - Literatur.
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  • 10
    Call number: AWI S6-21-94459
    Type of Medium: Monograph available for loan
    Pages: 42 Seiten , Illustrationen
    Edition: Stand: März 2014
    Language: German
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  • 11
    Call number: 9781630810504 (e-book)
    Type of Medium: 12
    Pages: 1 Online-Ressource (1.014 Seiten) , Illustrationen
    ISBN: 9781630810504 (e-book)
    Language: English
    Note: CONTENTS Preface Photo Credits Computer Codes 1 Introduction 1-1 Why Microwaves for Remote Sensing? 1-2 A Brief Overview of Microwave Sensors 1-3 A Short History of Microwave Remote Sensing 1-3.1 Radar 1-3.2 Radiometers 1-4 The Electromagnetic Spectrum 1-5 Basic Operation and Applications of Radar 1-5.1 Operation of Remote-Sensing Radars 1-5.2 Applications of Remote-Sensing Radars 1-6 Basic Operation and Applications of Radiometers 1-6.1 Radiometer Operation 1-6.2 Applications of Microwave Radiometry 1-7 Image Examples 2 Electromagnetic Wave Propagation 2-1 EM Plane Waves 2-1.1 Constitutive Parameters 2-1.2 Maxwell's Equations 2-1.3 Complex Permittivity 2-1.4 Wave Equations 2-2 Plane-Wave Propagation in Lossless Media 2-2.1 Uniform Plane Waves 2-2.2 General Relation between E and H 2-3 Wave Polarization in a Lossless Medium 2-3.1 Linear Polarization 2-3.2 Circular Polarization 2-3.3 Elliptical Polarization 2-4 Plane Wave Propagation in Lossy Media 2-4.1 Low Loss Dielectric 2-4.2 Good Conductor 2-5 Electromagnetic Power Density 2-5.1 Plane Wave in a Lossless Medium 2-5.2 Plane Wave in a Lossy Medium 2-5.3 Decibel Scale tor Power Ratios 2-6 Wave Reflection and Transmission at Normal Incidence 2-6.1 Boundary between Lossless Media 2-6.2 Boundary between Lossy Media 2-7 Wave Reflection and Transmission at Oblique Incidence 2-7.1 Horizontal Polarization—Lossless Media 2-7.2 Vertical Polarization 2-8 Reflectivity and Transmissivity 2-9 Oblique Incidence onto a Lossy Medium 2- 10 Oblique Incidence onto a Two-Layer Composite 2-10.1 Input Parameters 2-10.2 Propagation Matrix Method 2-10.3 Multiple Reflection Method 3 Remote-Sensing Antennas 3-1 The Hertzian Dipole 3-2 Antenna Radiation Characteristics 3-2.1 Antenna Pattern 3-2.2 Beam Dimensions 3-2.3 Antenna Directivity 3-2.4 Antenna Gain 3-2.5 Radiation Efficiency 3-2.6 Effective Area of a Receiving Antenna 3-3 Friis Transmission Formula 3-4 Radiation by Large-Aperture Antennas 3-5 Rectangular Aperture with Uniform Field Distribution 3-5.1 Antenna Pattern in x-y Plane 3-5.2 Beamwidth 3-5.3 Directivity and Effective Area 3-6 Circular Aperture with Uniform Field Illumination 3-7 Nonuniform-Amplitude Illumination 3-8 Beam Efficiency 3-9 Antenna Arrays 3-10 N-Element Array with Uniform Phase Distribution 3-10.1 Uniform Amplitude Distribution 3-10.2 Grating Lobes 3-10.3 Binomial Distribution 3-11 Electronic Scanning of Arrays 3-12 Antenna Types 3-12.1 Horn Antennas 3-12.2 Slot Antennas 3-12.3 Microstrip Antennas 3-13 Active Antennas 3-13.1 Advantages of Active Antennas 3-13.2 Digital Beamforming with Active Antennas 4 Microwave Dielectric Properties of Natural Earth Materials 4-1 Pure-Water Single-Debye Dielectric Model (f 〈 50 GHz) 4-2 Saline-Water Double-Debye Dielectric Model (f〈 1000 GHz) 4-3 Dielectric Constant of Pure Ice 4-4 Dielectric Mixing Models for Heterogeneous Materials 4-4.1 Randomly Oriented Ellipsoidal Inclusions 4-4.2 Polder-van Santen/de Loor Formulas 4-4.3 Tinga-Voss-Blossey (TVB) Formulas 4-4.4 Other Dielectric Mixing Formulas 4-5 Sea Ice 4-5.1 Dielectric Constant of Brine 4-5.2 Brine Volume Fraction 4-5.3 Dielectric Properties 4-6 Dielectric Constant of Snow 4-6.1 Dry Snow 4-6.2 Wet Snow 4-7 Dielectric Constant of Dry Rocks 4-7.1 Powdered Rocks 4-7.2 Solid Rocks 4-8 Dielectric Constant of Soils 4-8.1 Dry Soil 4-8.2 Wet Soil 4-8.3 εsoil in 0.3-1.5 GHz Band 4-9 Dielectric Constant of Vegetation 4-9.1 Dielectric Constant of Canopy Constituents 4-9.2 Dielectric Model 5 Radar Scattering 5-1 Wave Polarization in a Spherical Coordinate System 5-2 Scattering Coordinate Systems 5-2.1 Forward Scattering Alignment (FSA) Convention 5-2.2 Backscatter Alignment (BSA) Convention 5-3 Scattering Matrix 5-3.1 FSA Convention 5-3.2 BSA Convention 5-3.3 Stokes Parameters and Mueller Matrix 5-4 Radar Equation 5-5 Scattering from Distributed Targets 5-5.1 Narrow-Beam Scatterometer 5-5.2 Imaging Radar 5-5.3 Specific Intensities for Distributed Target 5-6 RCS Statistics 5-7 Rayleigh Fading Model 5-7.1 Underlying Assumptions 5-7.2 Linear Detection 5-7.3 Square-Law Detection 5-7.4 Interpretation 5-8 Multiple Independent Samples 5-8.1 N-Look Amplitude Image 5-8.2 N-Look Intensity Image 5-8.3 N-Look Square-Root Intensity Image 5-8.4 Spatial Resolution vs. Radiometric Resolution 5-8.5 Applicability of the Rayleigh Fading Model 5-9 Image Texture and Despeckle Filtering . 5-9.1 Image Texture 5-9.2 Despeckling Filters 5-10 Coherent and Noncoherent Scattering 5-10.1 Surface Roughness 5-10.2 Bistatic Scattering 5-10.3 Specular Reflectivity 5-10.4 Bistatic-Scattering Coefficient 5-10.5 Backscattering Response of a Smooth Surface 5-11 Polarization Synthesis 5-11.1 RCS Polarization Response 5-11.2 Distributed Targets 5-11.3 Mueller Matrix Approach 5-12 Polarimetric Scattering Statistics 5-13 Polarimetric Analysis Tools 5-13.1 Scattering Covariance Matrix 5-13.2 Eigenvector Decomposition 5-13.3 Useful Polarimetric Parameters 5-13.4 Image Examples 5-13.5 Freeman-Durden Decomposition 6 Microwave Radiometry and Radiative Transfer 6-1 Radiometric Quantities 6-2 Thermal Radiation 6-2.1 Quantum Theory of Radiation 6-2.2 Planck's Blackbody Radiation Law 6-2.3 The Rayleigh-Jeans Law 6-3 Power-Temperature Correspondence 6-4 Radiation by Natural Materials 6-4.1 Brightness Temperature 6-4.2 Brightness Temperature Distribution 6-4.3 Antenna Temperature 6-5 Antenna Efficiency Considerations 6-5.1 Beam Efficiency 6-5.2 Radiation Efficiency 6-5.3 Radiometer Measurement Ambiguity 6-6 Theory of Radiative Transfer 6-6.1 Equation of Radiative Transfer 6-6.2 Brightness-Temperature Equation 6-6.3 Brightness Temperature of a Stratified Medium 6-6.4 Brightness Temperature of a Scatter-Free Medium 6-6.5 Upwelling and Downwelling Atmospheric Brightness Temperatures 6-7 Terrain Brightness Temperature 6-7.1 Brightness Transmission Across a Specular Boundary 6-7.2 Emission by a Specular Surface 6-7.3 Emissivity of a Rough Surface 6-7.4 Extreme Surface Conditions 6-7.5 Emissivity of a Two-Layer Composite 6-8 Downward-Looking Satellite Radiometer 6-9 Polarimetric Radiometry 6-10 Stokes Parameters and Periodic Structures 7 Microwave Radiometric Systems 7-1 Equivalent Noise Temperature 7-2 Characterization of Noise 7-2.1 Noise Figure 7-2.2 Equivalent Input Noise Temperature 7-2.3 Noise Temperature of a Cascaded System 7-2.4 Noise Temperature of a Lossy Two-Port Device 7-3 Receiver and System Noise Temperatures 7-3.1 Receiver Alone 7-3.2 Total System Including Antenna 7-4 Radiometer Operation 7-4.1 Measurement Accuracy 7-4.2 Total-Power Radiometer 7-4.3 Radiometric Resolution 7-5 Effects of Receiver Gain Variations 7-6 Dicke Radiometer 7-7 Balancing Techniques 7-7.1 Reference-Channel Control Method 7-7.2 Antenna-Channel Noise-Injection Method 7-7.3 Pulsed Noise-Injection Method 7-7.4 Gain-Modulation Method 7-8 Automatic-Gain-Control (AGC) Techniques 7-9 Noise-Adding Radiometer 7-10 Summary of Radiometer Properties 7-11 Radiometer Calibration Techniques 7-11.1 Receiver Calibration 7-11.2 Calibration Sources 7-11.3 Effects of Impedance Mismatches 7-11.4 Antenna Calibration 7-11.5 Cryoload Technique 7-11.6 Bucket Technique 7-12 Imaging Considerations 7-12.1 Scanning Configurations 7-12.2 Radiometer Uncertainty Principle 7-13 Interferometric Aperture Synthesis 7-13.1 Image Reconstruction 7-13.2 MIR Radiometric Sensitivity 7-14 Polarimetric Radiometer 7-14.1 Coherent Detection 7-14.2 Incoherent Detection 7-15 Calibration of Polarimetric Radiometers 7-15.1 Forward Model for a Fully Polarimetric Radiometer 7-15.2 Forward Model for the Polarimetric Calibration Source 7-15.3 Calibration by Inversion of the Forward Models 7-16 Digital Radiometers 8 Microwave Interaction with Atmospheric Constituents 8-1 Standard Atmosphere 8-1.1 Atmospheric Composition 8-1.2 Temperature Profile 8-1.3 Density Profile 8-1.4 Pressure Profi
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  • 12
    Call number: AWI Bio-20-93993
    Type of Medium: Dissertations
    Pages: III, 127 Seiten , Illustrationen
    Language: English
    Note: Dissertation, Universität Potsdam, 2014 , Table of contents I - Abstract II - Zusammenfassung Chapter 1 - Introduction 1.1. Introduction 1.1.1 Motivation 1.1.2 Organisation of thesis 1.1 Scientific background 1.2.1 Arctic and wetland bryophytes 1.2.2 Bryophyte remains as palaeo-environmental indicators 1.2.3 Regional setting 1.3 Objectives ofthe thesis 1.4 Overview of the manuscripts 1.5 Contribution of the authors Chapter 2 - Manuscript #1 Abstract 2.1 Introduction 2.2 Geographic setting 2.3 Materials and methods 2.3.1 Fieldwork 2.3.2 Radiocarbon dating 2.3.3 Geochemical, stable carbon isotope, and granulometric analyses 2.3.4 Analyses of moss remains and vascular plant macrofossils 2.3.5 Pollen analysis 2.3.6 Diatom analysis 2.3.7 Statistical analysis 2.4 Results 2.4.1 High-resolution spatial characteristics oft the investigated polygon and vegetation pattern 2.4.2 Geochronology and age-depth relationships 2.4.3 General properties of the sedimentary fill 2.4.4 Bioindicators 2.4.5 Characterization oftwo different types of polygon pond sediment 2.5. Discussion 2.5.1 Small-scale spatial structure of polygons 2.5.2 Age-depth relationships 2.5.3 Proxy value of the analysed parameters 2.5.4 The general polygon development 2.5.5 Polygon development as a function of external controls and internal adjustment mechanisms 2.6 Conclusions Chapter 3 - Manuscript #11 Abstract 3.1 Introduction 3.2 Material und methods 3.2.1 Regional setting 3.2.3 Field methods and environmental data collection 3.2.4 Data analysis 3.3 Results 3.3.1 Major characteristics of the investigated polygons 3.3.2 Vegetation cover and its relationships with micro-relief and vegetation type 3.3.3 Vegetation alpha-diversity and its relationship with micro-relief and vegetation type 3.3.4 Vegetation composition and its relationship with micro-relief and vegetation type 3.4 Discussion 3.4.1 Patterns of cover, alpha-diversity and compositional turnover of vascular plants and bryophytes along the rim-pond transect (local-scale) 3.4.2 Patterns of cover, alpha-diversity and compositional turnover of vascular plants and bryophytes along the regional-scale forest-tundra transect 3.4.3 Indicator potential ofvascular plant and bryophyte remains from polygonal peats for the reconstruction of local hydrological and regional vegetation changes 3.4.4. Implications of the performed vegetation transect studies for future Arctic warming 3.5 Acknowledgements 2.4.4 Bioindicators 2.4.5 Characterization of two different types of polygon pond sediment 2.5. Discussion 2.5.1 Small-scale spatial structure of polygons 2.5.2 Age-depth relationships 2.5.3 Proxy value of the analysed parameters 2.5.4 The general polygon development 2.5.5 Polygon development as a function of external controls and internal adjustment mechanisms 2.6 Conclusions Chapter 3 - Manuscript #II Abstract 3.1 Introduction 3.2 Material und methods 3.2.1 Regional setting 3.2.3 Field methods and environmental data collection 3.2.4 Data analysis 3.3 Results 3.3.1 Major characteristics of the investigated polygons 3.3.2 Vegetation cover and its relationships with micro-relief and vegetation type 3.3.3 Vegetation alpha-diversity and its relationship with micro-relief and vegetation type 3.3.4 Vegetation composition and its relationship with micro-relief and vegetation type 3.4 Discussion 3.4.1 Patterns of cover, alpha-diversity and compositional turnover of vascular plants and bryophytes along the rim-pond transect (local-scale) 3.4.2 Patterns of cover, alpha-diversity and compositional turnover of vascular plants and bryophytes along the regional-scale forest-tundra transect 3.4.3 Indicator potential of vascular plant and bryophyte remains from polygonal peats for the reconstruction of local hydrological and regional vegetation changes 3.4.4. Implications of the performed vegetation transect studies for future Arctic warming 3.5 Acknowledgements Chapter 4 - Manuscript #3 Abstract 4.1 Introduction 4.2 Material and methods 4.2.1 Sites 4.2.2 Sampling 4.2.3 Investigated moss species 4.2.4 Measurements 4.2.5 Statistical Tests 4.3 Results 4.4 Discussion Chapter 5 - Discussion 5.1 Bryophytes of polygonal landscapes in Siberia 5.1.1 Modern bryophytes in the Siberian Arctic 5.1.2 Biochemical and isotopic characteristics of mosses 5.1.3 Reliability and potential of fossil bryophyte remains as palaeoproxies 5.2 Dynamics of low-centred polygons during the late Holocene 5.3 Outlook Appendix I - Preliminary Report Motivation Material and methods Results and first interpretation Appendix II Additional tables and figures of manuscript #1 Appendix III Additional figures of manuscript #2 Appendix IV - Quantitative approach of Standard Moss Stem (SMS3) Bibliography Acknowledgements Eidesstattliche Erklärung
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  • 13
    Monograph available for loan
    Monograph available for loan
    New York, NY : Cambridge Univ. Press
    Call number: AWI A11-15-89031
    Description / Table of Contents: Thermodynamics, Kinetics and Microphysics of Clouds presents a unified theoretical foundation that provides the basis for incorporating cloud microphysical processes in cloud and climate models. In particular, the book provides: • a theoretical basis for understanding the processes of cloud particle formation, evolution and precipitation, with emphasis on spectral cloud microphysics based on numerical and analytical solutions of the kinetic equations for the drop and crystal size spectra along with the supersaturation equation; • the latest detailed theories and parameterizations of drop and crystal nucleation suitable for cloud and climate models derived from the general principles of thermodynamics and kinetics; • a platform for advanced parameterization of clouds in weather prediction and climate models; • the scientific foundation for weather and climate modification by cloud seeding. This book will be invaluable for researchers and advanced students engaged in cloud and aerosol physics, and air pollution and climate research.
    Type of Medium: Monograph available for loan
    Pages: XVIII, 782 S. : graph. Darst., Kt.
    ISBN: 978-1-107-01603-3
    Language: English
    Note: Contents: Preface. - 1. Introduction. - 1.1. Relations among Thermodynamics, Kinetics, and Cloud Microphysics. - 1.2. The Correspondence Principle. - 1.3. Structure of the Book. - 2. Clouds and Their Properties. - 2.1. Cloud Classification. - 2.2. Cloud Regimes and Global Cloud Distribution. - 2.2.1. Large-Scale Condensation in Fronts and Cyclones. - 2.2.2. Sc-St Clouds and Types of Cloud-Topped Boundary Layer. - 2.2.3. Convective Cloudiness in the Intertropical Convergence Zone. - 2.2.4. Orographic Cloudiness. - 2.3. Cloud Microphysical Properties. - 2.4. Size Spectra and Moments. - 2.4.1. Inverse Power Laws. - 2.4.2. Lognormal Distributions. - 2.4.3. Algebraic Distributions. - 2.4.4. Gamma Distributions. - 2.5. Cloud Optical Properties. - Appendix A.2. Evaluation of the Integrals with Lognormal Distribution. - 3. Thermodynamic Relations. - 3.1. Thermodynamic Potentials. - 3.2. Statistical Energy Distributions. - 3.2.1. The Gibbs Distribution. - 3.2.2. The Maxwell Distribution. - 3.2.3. The Boltzmann Distribution. - 3.2.4. Bose–Einstein Statistics. - 3.2.5. Fermi–Dirac Statistics. - 3.3. Phase Rules. - 3.3.1. Bulk Phases. - 3.3.2. Systems with Curved Interfaces. - 3.4. Free Energy and Equations of State. - 3.4.1. An Ideal Gas. - 3.4.2. Free Energy and the van der Waals Equation of State for a Non-Ideal Gas. - 3.5. Thermodynamics of Solutions. - 3.6. General Phase Equilibrium Equation for Solutions. - 3.6.1. General Equilibrium Equation. - 3.6.2. The Gibbs–Duhem Relation. - 3.7. The Clausius–Clapeyron Equation. - 3.7.1. Equilibrium between Liquid and Ice Bulk Phases. - 3.7.2. Equilibrium of a Pure Water Drop with Saturated Vapor. - 3.7.3. Equilibrium of an Ice Crystal with Saturated Vapor. - 3.7.4. Humidity Variables. - 3.8. Phase Equilibrium for a Curved Interface - The Kelvin Equation. - 3.9. Solution Effects and the Köhler Equation. - 3.10. Thermodynamic Properties of Gas Mixtures and Solutions. - 3.10.1. Partial Gas Pressures in a Mixture of Gases. - 3.10.2. Equilibrium of Two Bulk Phases around a Phase Transition Point. - 3.10.3. Raoult’s Law for Solutions. - 3.10.4. Freezing Point Depression and Boiling Point Elevation. - 3.10.5. Relation of Water Activity and Freezing Point Depression. - 3.11. A diabatic Processes. - 3.11.1. Dry Adiabatic Processes. - 3.11.2. Wet Adiabatic Processes. - Appendix A.3. Calculation of Integrals with the Maxwell Distribution. - 4. Properties of Water and Aqueous Solutions. - 4.1. Properties of Water at Low Temperatures and High Pressures. - 4.1.1. Forms of Water at Low Temperatures. - 4.1.2. Forms of Water at High Pressures. - 4.2. Theories of Water. - 4.3. Temperature Ranges in Clouds and Equivalence of Pressure and Solution Effects. - 4.4. Parameterizations of Water and Ice Thermodynamic Properties. - 4.4.1. Saturated Vapor Pressures. - 4.4.2. Heat Capacity of Water and Ice. - 4.4.3. Latent Heats of Phase Transitions. - 4.4.4. Surface Tension between Water and Air or Vapor. - 4.4.5. Surface Tension between Ice and Water or Solutions. - 4.4.6. Surface Tension between Ice and Air or Vapor. - 4.4.7 Density of Water. - 4.4.8. Density of Ice. - 4.5. Heat Capacity and Einstein-Debye Thermodynamic Equations of State for Ice. - 4.6. Equations of State for Ice in Terms of Gibbs Free Energy. - 4.7. Generalized Equations of State for Fluid Water. - 4.7.1. Equations of the van der Waals Type and in Terms of Helmholtz Free Energy. - 4.7.2. Equations of State Based on the Concept of the Second Critical Point. - Appendix A.4. Relations among Various Pressure Units. - 5. Diffusion and Coagulation Growth of Drops and Crystals. - 5.1. Diffusional Growth of Individual Drops. - 5.1.1. Diffusional Growth Regime. - 5.1.2. The Kinetic Regime and Kinetic Corrections to the Growth Rate. - 5.1.3. Psychrometric Correction Due to Latent Heat Release. - 5.1.4. Radius Growth Rate. - 5.1.5. Ventilation Corrections. - 5.2. Diffusional Growth of Crystals. - 5.2.1. Mass Growth Rates. - 5.2.2. Axial Growth Rates. - 5.2.3. Ventilation Corrections. - 5.3. Equations for Water and Ice Supersaturations. - 5.3.1. General Form of Equations for Fractional Water Supersaturation. - 5.3.2. Supersaturation Relaxation Times and Their Limits. - 5.3.3. E quation for Water Supersaturation in Terms of Relaxation Times. - 5.3.4. Equivalence of Various Forms of Supersaturation Equations. - 5.3.5. Equation for Fractional Ice Supersaturation. - 5.3.6. Equilibrium Supersaturations over Water and Ice. - Liquid Clouds. - Ice Clouds. - Mixed Phase Clouds. - 5.3.7. A diabatic Lapse Rates with Non zero Supersaturations. - 5.4. The Wegener–Bergeron–Findeisen Process and Cloud Crystallization. - 5.5. Kinetic Equations of Condensation and Deposition in the Adiabatic Process. - 5.5.1. Derivation of the Kinetic Equations. - 5.5.2. Some Properties of Regular Condensation. - 5.5.3. Analytical Solution of the Kinetic Equations of Regular Condensation. - 5.5.4. Equation for the Integral Supersaturation. - 5.6. Kinetic Equations of Coagulation. - 5.6.1. Various Forms of the Coagulation Equation. - 5.6.2. Collection Kernels for Various Coagulation Processes. - Brownian Coagulation. - Gravitational Coagulation. - 5.7. Thermodynamic and Kinetic Equations for Multidimensional Models. - 5.8. Fast Algorithms for Microphysics Modules in Multidimensional Models. - 6. Wet Aerosol Processes. - 6.1. Introduction. - 6.1.1. Empirical Parameterizations of Hygroscopic Growth. - 6.1.2. Empirical Parameterizations of Droplet Activation. - 6.2. Equilibrium Radii. - 6.2.1. Equilibrium Radii at Subsaturation. - 6.2.2. Equilibrium Radii of Interstitial Aerosol in a Cloud. - 6.3. Critical Radius and Supersaturation. - 6.4. Aerosol Size Spectra. - 6.4.1. Lognormal and Inverse Power Law Size Spectra. - 6.4.2. Approximation of the Lognormal Size Spectra by the Inverse Power Law. - 6.4.3. Examples of the Lognormal Size Spectra, Inverse Power Law, and Power Indices. - 6.4.4. Algebraic Approximation of the Lognormal Distribution. - 6.5. Transformation of the Size Spectra of Wet Aerosol at Varying Humidity. - 6.5.1. Arbitrary Initial Spectrum of Dry Aerosol. - 6.5.2. Lognormal Initial Spectrum of Dry Aerosol. - 6.5.3. Inverse Power Law Spectrum. - 6.5.4. Algebraic Size Spectra. - 6.6. CCN Differential Supersaturation Activity Spectrum. - 6.6.1. A rbitrary Dry Aerosol Size Spectrum. - 6.6.2. Lognormal Activity Spectrum. - 6.6.3. Algebraic Activity Spectrum. - 6.7. Droplet Concentration and the Modified Power Law for Drops Activation. - 6.7.1. Lognormal and Algebraic CCN Spectra. - 6.7.2. Modified Power Law for the Drop Concentration. - 6.7.3. Supersaturation Dependence of Power Law Parameters. - Appendix A.6. Solutions of Cubic Equations for Equilibrium and Critical Radii. - 7. Activation of Cloud Condensation Nuclei into Cloud Drops. - 7.1. Introduction. - 7.2. Integral Supersaturation in Liquid Clouds with Drop Activation. - 7.3. Analytical Solutions to the Supersaturation Equation. - 7.4. Analytical Solutions for the Activation Time, Maximum Supersaturation, and Drop Concentration. - 7.5. Calculations of CCN Activation Kinetics. - 7.6. Four Analytical Limits of Solution. - 7.7. Limit #1: Small Vertical Velocity, Diffusional Growth Regime. - 7.7.1. Lower Bound. - 7.7.2. Upper Bound. - 7.7.3. Comparison with Twomey’s Power Law. - 7.8. Limit #2: Small Vertical Velocity, Kinetic Growth Regime. - 7.8.1. Lower Bound. - 7.8.2. Upper Bound. - 7.9. Limit #3: Large Vertical Velocity, Diffusional Growth Regime. - 7.9.1. Lower Bound. - 7.9.2. Upper Bound. - 7.10. Limit #4: Large Vertical Velocity, Kinetic Growth Regime. - 7.10.1. Lower Bound. - 7.10.2. Upper Bound. - 7.11. Interpolation Equations and Comparison with Exact Solutions. - Appendix A.7. Evaluation of the Integrals J2 and J3 for Four Limiting Cases. - 8. Homogeneous Nucleation. - 8.1. Metastable States and Nucleation of a New Phase. - 8.2. Nucleation Rates for Condensation and Deposition. - 8.2.1. Application of Boltzmann Statistics. - 8.2.2. The Fokker–Planck
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  • 14
    Monograph available for loan
    Monograph available for loan
    Cambridge [u.a.] : Cambridge Univ. Press
    Call number: AWI S2-14-0042 ; M 15.0198
    Description / Table of Contents: This revised and updated edition focuses on constrained ordination (RDA, CCA), variation partitioning and the use of permutation tests of statistical hypotheses about multivariate data. Both classification and modern regression methods (GLM, GAM, loess) are reviewes and species functional traits and spatial structures are analysed. Nine case studies of varying difficulty help to illustrate the suggestes analytical methods, using the latest version of Canoco 5. All studies utilise descriptive and manipulative approaches, and are supported by data sets and project files available from the book website: http://regent.prf.jcu.cz/maed2/. Written primarily for community ecologists needing to analyse data resulting from field observations and experiments, this book is a valuable resource for students and researchers dealing with both simple and complex ecological problems, such as the variation of biotic communities with environmental conditions or their response to experimental manipulation.
    Type of Medium: Monograph available for loan
    Pages: XII, 362 S. : Ill., graph. Darst.
    Edition: 2. ed.
    ISBN: 9781107694408 , 1-107-69440-X
    Language: English
    Note: Contents: Preface. - 1 Introduction and datatypes. - 1.1 Why ordination?. - 1.2 Datatypes. - 1.3 Data transformation and standardisation. - 1.4 Missing values. - 1.5 Types of analyses. - 2 Using Canoco 5. - 2.1 Philosophy of Canoco 5. - 2.2 Data import and editing. - 2.3 Defining analyses. - 2.4 Visualising results. - 2.5 Beware, CANOCO 4.x users!. - 3 Experimental design. - 3.1 Completely randomised design. - 3.2 Randomised complete blocks. - 3.3 Latin square design. - 3.4 Pseudo replicates. - 3.5 Combining more than one factor. - 3.6 Following the development of objects in time: repeated observations. - 3.7 Experimental and observational data. - 4 Basics of gradient analysis. - 4.1 Techniques of gradient analysis. - 4.2 Models of response to gradients. - 4.3 Estimating species optima by weighted averaging. - 4.4 Calibration. - 4.5 Unconstrained ordination. - 4.6 Constrained ordination. - 4.7 Basic ordination techniques. - 4.8 Ordination axes as optimal predictors. - 4.9 Ordination diagrams. - 4.10 Two approaches. - 4.11 Testing significance of the relation with explanatory variables. - 4.12 Monte Carlo permutation tests for the significance of regression. - 4.13 Relating two biotic communities. - 4.14 Community composition as a cause: using reverse analysis. - 5.1 Permutation tests: the philosophy. - 5.2 Pseudo-F statistics and significance. - 5.3 Testing individual constrained axes. - 5.4 Tests with spatial or temporal constraints. - 5.5 Tests with hierarchical constraints. - 5.6 Simple versus conditional effects and stepwises election. - 5.7 Variation partitioning. - 5.8 Significance adjustment for multiple tests. - 6 Similarity measures and distance-based methods. - 6.1 Similarity measures for presence-absence data. - 6.2 Similarity measures for quantitative data. - 6.3 Similarity of cases versus similarity of communities. - 6.4 Similarity between species in trait values. - 6.5 Principal coordinates analysis. - 6.6 Constrained principal coordinates analysis (db-RDA). - 6.7 Non-metric multidimensional scaling. - 6.8 Mantel test. - 7.1 Example data set properties. - 7.2 Non-hierarchical classification (K-means clustering). - 7.3 Hierarchical classification. - 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 Mixed-effect models (LMM, GLMM and GAMM). - 8.7 Classification and regression trees (CART). - 8.8 Modelling species response curves with Canoco. - 9 Interpreting community composition with functional traits. - 9.1 Required data. - 9.2 Two approaches in traits - environment studies. - 9.3 Community-based approach. - 9.4 Species-based approach. - 10 Advanced use of ordination. - 10.1 Principal response curves (PRC). - 10.2 Separating spatial variation. - 10.3 Linear discriminant analysis. - 10.4 Hierarchical analysis of community variation. - 10.5 Partitioning diversity indices into alpha and beta components. - 10.6 Predicting community composition. - 11 Visualising multivariate data. - 11.1 Reading ordination diagrams of linear methods. - 11.2 Reading ordination diagrams of unimodal methods. - 11.3 Attribute plots. - 11.4 Visualising classification, groups, and sequences. - 11.5 T-value biplot. - 12 Case study 1: Variation in forest bird assemblages. - 12.1 Unconstrained ordination: portraying variation in bird community. - 12.2 Simple constrained ordination: the effect of altitude on bird community. - 12.3 Partial constrained ordination: additional effect of other habitat characteristics. - 12.4 Separating and testing alpha and beta diversity. - 13 Case study 2: Search for community composition patterns and their environmental correlates: vegetation of spring meadows. - 13.1 Unconstrained ordination. - 13.2 Constrained ordination. - 13.3 Classification. - 13.4 Suggestions for additional analyses. - 13.5 Comparing two communities. - 14 Case study 3: Separating the effects of explanatory variables. - 14.1 Introduction. - 14.2 Data. - 14.3 Changes in species richness and composition. - 14.4 Changes in species traits. - 15 Case study 4: Evaluation of experiments in randomised complete blocks. - 15.1 Introduction. - 15.2 Data. - 15.3 Analysis. - 15.4 Calculating ANOVA using constrained ordination. - 16 Case study 5: Analysis of repeated observations of species composition from a factorial experiment. - 16.1 Introduction. - 16.2 Experimental design. - 16.3 Data coding and use. - 16.4 Univariate analyses. - 16.5 Constrained ordinations. - 16.6 Principal response curves. - 16.7 Temporal changes across treatments. - 16.8 Changes in composition of functional traits. - 17 Case study 6: Hierarchical analysis of crayfish community variation. - 17.1 Data and design. - 17.2 Differences among sampling locations. - 17.3 Hierarchical decomposition of community variation. - 18 Case study 7: Analysis of taxonomic data with discriminant analysis and distance-based ordination. - 18.1 Data. - 18.2 Summarising morphological data with PCA. - 18.3 Linear discriminant analysis of morphological data. - 18.4 Principal coordinates analysis of AFLP data. - 18.5 Testing taxon differences in AFLP data using db-RDA. - 18.6 Taking populations into account. - 19 Case study 8: Separating effects of space and environment on oribatid community with PCNM. - 19.1 Ignoring the space. - 19.2 Detecting spatial trends. - 19.3 All-scale spatial variation of community and environment. - 19.4 Variation partitioning with spatial predictors. - 19.5 Visualising spatial variation. - 20 Case study 9: Performing linear regression with redundancy analysis. - 20.1 Data. - 20.2 Linear regression using program R. - 20.3 Linear regression with redundancy analysis. - 20.4 Fitting generalized linear models in Canoco. - Appendix A Glossary. - Appendix B Sample data sets and projects. - Appendix C Access to Canoco and overview of other software. - Appendix D Working with R. - References. - Index to useful tasks in Canoco 5. - Subject index.
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  • 15
    Monograph available for loan
    Monograph available for loan
    Washington : National Academies Press
    Call number: AWI P5-14-0057
    Description / Table of Contents: Once ice-bound, difficult to access, and largely ignored by the rest of the world, the Arctic is now front and center in the midst of many important questions facing the world today. Our daily weather, what we eat, and coastal flooding are all interconnected with the future of the Arctic. The year 2012 was an astounding year for Arctic change. The summer sea ice volume smashed previous records, losing approximately 75 percent of its value since 1980 and half of its areal coverage. Multiple records were also broken when 97 percent of Greenland's surface experienced melt conditions in 2012, the largest melt extent in the satellite era. Receding ice caps in Arctic Canada are now exposing land surfaces that have been continuously ice covered for more than 40,000 years. What happens in the Arctic has far-reaching implications around the world. Loss of snow and ice exacerbates climate change and is the largest contributor to expected global sea level rise during the next century. Ten percent of the world's fish catches comes from Arctic and sub-Arctic waters. The U.S. Geological Survey estimated that up to 13 percent of the world's remaining oil reserves are in the Arctic. The geologic history of the Arctic may hold vital clues about massive volcanic eruptions and the consequent release of massive amount of coal fly ash that is thought to have caused mass extinctions in the distant past. How will these changes affect the rest of Earth? What research should we invest in to best understand this previously hidden land, manage impacts of change on Arctic communities, and cooperate with researchers from other nations? The Arctic in the Anthropocene reviews research questions previously identified by Arctic researchers, and then highlights the new questions that have emerged in the wake of and expectation of further rapid Arctic change, as well as new capabilities to address them. This report is meant to guide future directions in U.S. Arctic research so that research is targeted on critical scientific and societal questions and conducted as effectively as possible. The Arctic in the Anthropocene identifies both a disciplinary and a cross-cutting research strategy for the next 10 to 20 years, and evaluates infrastructure needs and collaboration opportunities. The climate, biology, and society in the Arctic are changing in rapid, complex, and interactive ways. Understanding the Arctic system has never been more critical; thus, Arctic research has never been more important. This report will be a resource for institutions, funders, policy makers, and students. Written in an engaging style, The Arctic in the Anthropocene paints a picture of one of the last unknown places on this planet, and communicates the excitement and importance of the discoveries and challenges that lie ahead.
    Type of Medium: Monograph available for loan
    Pages: xiii, 210 Seiten , Illustrationen
    Edition: [Final report]
    ISBN: 9780309301831 , 0-309-30183-1
    Language: English
    Note: Contents: SUMMARY. - 1 INTRODUCTION. - Study Context and Charge to the Committee. - Study Approach and Methodology. - Report Organization. - 2 RATIONALE FOR CONTINUED ARCTIC RESEARCH. - 3 EMERGING QUESTIONS. - Evolving Arctic. - Will Arctic communities have greater or lesser influence on their futures?. - Will the land be wetter or drier, and what are the associated implications for surface water, energy balances, and ecosystems?. - How much of the variability of the Arctic system is linked to ocean circulation?. - What are the impacts of extreme events in the new ice-reduced system?. - How will primary productivity change with decreasing sea ice and snow cover?. - How will species distributions and associated ecosystem structure change with the evolving cryosphere?. - Hidden Arctic. - What surprises are hidden within and beneath the ice?. - What is being irretrievably lost as the Arctic changes?. - Why does winter matter?. - What can "break or brake" glaciers and ice sheets?. - How unusual is the current Arctic warmth?. - What is the role of the Arctic in abrupt change?. - What has been the Cenozoic evolution of the Arctic Ocean Basin?. - Connected Arctic. - How will rapid Arctic warming change the jet stream and affect weather patterns in lower latitudes?. - What is the potential for a trajectory of irreversible loss of Arctic land ice, and how will its impact vary regionally?. - How will climate change affect exchanges between the Arctic Ocean andsubpolar basins?. - How will Arctic change affect the long-range transport and persistence of biota?. - How will changing societal connections between the Arctic and the rest of the world affect Arctic communities?. - Managed Arctic. - How will decreasing populations in rural villages and increasing urbanization affect Arctic peoples and societies?. - Will local, regional, and international relations in the Arctic move toward cooperation or conflict?. - How can 21st-century development in the Arctic occur without compromising the environment or indigenous cultures while still benefiting global and Arctic inhabitants?. - How can we prepare forecasts and scenarios to meet emerging management needs?. - What benefits and risks are presented by geoengineering and other large-scale technological interventions to prevent or reduce climate change and associated impacts in the Arctic?. - Undetermined Arctic. - Priority Setting. - 4 MEETING THE CHALLENGES. - Enhancing Cooperation. - Interagency. - International. - Interdisciplinary. - Intersectoral. - Cooperation through Social Media. - Sustaining Long-Term Observations. - Rationale for Long-Term Observations. - Coordinating Long-Term Observation Efforts. - Managing and Sharing Information. - Preserving the Legacy of Research through Data Preservation and Dissemination. - Creating a Culture of Data Preservation and Sharing. - Infrastructure to Ensure Data Flows from Observation to Users, Stakeholders, and Archives. - Data Visualization and Analysis. - Maintaining and Building Operational Capacity. - Mobile Platforms. - Fixed Platforms and Systems. - Remote Sensing. - Sensors. - Power and Communication. - Models in Prediction, Projection, and Re-Analyses. - Partnerships with Industry. - Growing Human Capacity. - Community Engagement. - Investing in Research. - Comprehensive Systems and Synthesis Research. - Non-Steady-State Research. - Social Sciences and Human Capacity. - Stakeholder-Initiated Research. - International Funding Cooperation. - Long-Term Observations. - 5 BUILDING KNOWLEDGE AND SOLVING PROBLEMS. - REFERENCES. - APPENDIXES. - A Acronyms and Abbreviations. - B Speaker and Interviewee Acknowledgments. - C Summary of Questionnaire Responses. - D Biographical Sketches of Committee Members.
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  • 16
    Call number: ZSP-558-26
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 73 S. : Ill., graph. Darst.
    Language: English
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  • 17
    Call number: ZSP-168-42
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 57 S. : graph. Darst.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 42
    Language: English
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  • 18
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-54
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 94 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 54
    Language: German
    Note: Zugl.: Kiel, Univ. Diss., 1987
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  • 19
    Call number: AWI P6-07-0049 ; AWI Atl-20-2041
    Type of Medium: Monograph available for loan
    Pages: 75, 6 Seiten
    Edition: 1. Ausgabe
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 10, Annex
    Language: German , English , French , Russian , Spanish
    Note: Teilweise in deutscher, englischer, französischer, russischer und spanischer Sprache
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  • 20
    Monograph available for loan
    Monograph available for loan
    Heidelberg : Spektrum der Wissenschaft Verl.-ges.
    Associated volumes
    Call number: M 91.0754 ; 4/M 92.0811 ; PIK N 411-94-0207 ; AWI G1-91-1558a ; AWI G1-91-1558b
    In: Spektrum der Wissenschaft : Verständliche Forschung
    Type of Medium: Monograph available for loan
    Pages: 216 S.
    Edition: 2. Aufl.
    ISBN: 3922508405
    Series Statement: Spektrum der Wissenschaft : Verständliche Forschung
    Language: German
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  • 21
    Call number: SR 90.0068(42) ; ZSP-320(E,42)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 208 S. : Ill., graph. Darst., Kt.
    Series Statement: Geologisches Jahrbuch : Reihe E 42
    Language: German
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  • 22
    Call number: 21/SR 90.0917(95) ; MOP 47161 / Mitte ; AWI G9-19-43041
    In: Veröffentlichungen des Zentralinstituts Physik der Erde, Nr. 95
    Type of Medium: Series available for loan
    Pages: 118 Seiten , Illustrationen , 30 cm
    Edition: als Manuskript gedruckt
    ISSN: 0514-8790
    Series Statement: Veröffentlichungen des Zentralinstituts Physik der Erde Nr. 95
    Language: German
    Note: Zugleich: Berlin, Akademie der Wissenschaften der DDR, Dissertation A, 1987 , Inhaltsverzeichnis: 0. Vorbemerkungen. - 1. Einleitung. - 2. Theoretische Grundlagen der gesteinsmagnetischen Anisotropieuntersuchungen. - 2.1. Suszeptibilitätsanisotropien in Mineralen. - 2.1.1. Magnetische Kristallanisotropie. - 2.1.2. Magnetische Formanisotropie. - 2.2. Suszeptibilitätsanisotropien in Gesteinen. - 2.3. Symmetriebeziehungen. - 3. Untersuchungsmethodik. - 3.1. Probenentnahme. - 3.2. Probenaufbereitung. - 3.3. Meßwertaufnahme. - 3.4. Meßwertbearbeitung. - 3.5. Fehlerbetrachtung. - 4. Gesteinsmagnetische Anisotropieuntersuchungen an Sedimentiten der Thüringischen und Subherzynen Senke und Magmatiten aus dem Südteil der DDR. - 4.1. Vorbemerkungen. - 4.2. Gesteinsmagnetische Anisotropieuntersuchungen in Sedimentiten. - 4.2.1. Genetische Klassifizierung der gesteinsmagnetischen Anisotropien. - 4.2.2. Anwendung der Methode auf Karbonate der Allertal-Grabenzone (Subherzyne Senke). - 4.2.2.1. Geologische Stellung 4.2.2.2. Ergebnisse der Anisotropieuntersuchungen. - 4.2.3. Anwendung der Methode auf Karbonate aus Randstörungen der Thüringischen Senke. - 4.2.3.1. Geologische Stellung. - 4.2.3.2. Ergebnisse der Anisotropieuntersuchungen. - 4.2.4. Diskussion der Ergebnisse. - 4.2.5. Schlußfolgerungen. - 4.3. Gesteinsmagnetische Anisotropieuntersuchungen an Magmatiten aus dem Südteil der DDR. - 4.3.1. Genetische Klassifizierung gesteinsmagnetischer Anisotropien in Magmatiten. - 4.3.2. Anwendung der Methode auf die Gesteine des Kirchberger Granits. - 4.3.2.1. Geologische Stellung. - 4.3.2.2. Diskussion der gesteinsmagnetischen Untersuchungsergebnisse. - 4.3.3. Anwendung der Methode auf die Gesteine des Meißener Massivs. - 4.3.3.1. Geologische Stellung. - 4.3.3.2. Diskussion der gesteinsmagnetischen Untersuchungsergebnisse. - 4.3.4. Schlußfolgerungen. - 5. Die Anisotropie der Suszeptibilität in den Ketamorphiten der Schirmacher-Oase (Ostantarktika). - 5.1. Vorbemerkungen. - 5.2. Genetische Klassifizierung gesteinsmagnetischer Anisotropien in Metamorphiten. - 5.2.1. Modellvorstellungen zum Orientierungsverhalten ferromagnetischer Minerale bei Deformation. - 5.2.2. Anisotropie der Suszeptibilität und Regionalmetamorphose. - 5.2.3. Anisotropie der Suszeptibilität und Dynamometamorphose. - 5.3. Petromagnetische und petrographisch/petrochemische Eigenschaften der Tektonite (Kataklasite, Mylonite, Blastomylonite) aus einer Störungszone der Schirmacher Oase. - 5.3.1. Geologisch-geophysikalische Übersicht. - 5.3.2. Strukturelle und stoffliche Untersuchungsergebnisse. - 5.3.2.1. Tektonische und petrographisch/petrochemische Ergebnisse. - 5.3.2.2. Zur Anisotropie der gesteinsmagnetischen Eigenschaften 5.3.2.3. Zur kristallographischen Anisotropie (Textur) des Magnetitanteils. - 5.3.3. Diskussion der Ergebnisse und Schlußfolgerungen. - 5.3.3.1. Parameterbeziehung zwischen den petrophysikalischen und stofflichen Ergebnissen aus methodischer Sicht. - 5.3.3.2. Geowissenschaftliehe Komplexinterpretation zur Kinematik der Störungszone. - 6. Anwendung gesteinsmagnetischer Anisotropieuntersuchungen zur Bewertung paläomagnetischer Meßergebnisse. - 6.1. Anisotropie beim Erwerb einer thermoremanenten Magnetisierung (TRM). - 6.2. Anisotropie beim Erwerb einer Sedimentationsremanenz (DRM). - 6.3. Schlußfolgerungen. - 7. Zusammenfassende Ergebnisdarstellung und Schlußfolgerungen für weiterführende Arbeiten. - Literatur.
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  • 23
    Series available for loan
    Series available for loan
    Ottawa : Geological Survey of Canada
    Associated volumes
    Call number: SR 90.0009(423) ; AWI G6-06-0043
    In: Memoir
    Type of Medium: Series available for loan
    Pages: 98 S. + 1 pl.
    ISBN: 0660127431
    Series Statement: Memoir / Geological Survey of Canada 423
    Language: English
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  • 24
    Monograph available for loan
    Monograph available for loan
    Associated volumes
    Call number: 9/G 9184 ; AWI G3-92-0227
    In: Diagenesis
    Type of Medium: Monograph available for loan
    Pages: XII, 591 S. : graph. Darst.
    ISBN: 0444427201
    Series Statement: 41
    Language: English
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  • 25
    Monograph available for loan
    Monograph available for loan
    Leipzig : Brockhaus
    Call number: 1.4/8928 ; AWI E1-89-0046 ; AWI E1-89-0047 ; AWI E1-18-57292
    Description / Table of Contents: Alfred Wegener (1880-1930) war eine der vielseitigsten Forscherpersönlichkeiten unseres Jahrhunderts. Er beschränkte sich in seinem Schaffen und mit seinen wissenschaftlichen Ideen nicht auf ein enges Fachgebiet. Wegener gab Impulse für die Polarforschung ebenso wie für die Geowissenschaften, von der Geologie über Geophysik und Meteorologie bis hin zur kosmischen Physik. ln seiner Doktorarbeit hatte er in brillanter Weise ein astronomisches Thema behandelt und sich mit seinem 1911 erschienenen Buch "Thermodynamik der Atmosphäre" als Meteorologe vorgestellt, als er am 6.12.1912 mit der kühnen Hypothese vor die in Frankfurt am Main tagende Hauptversammlung der Geologischen Vereinigung trat, nach der die Festländer so "fest" gar nicht wären und sich ihre Lage im Verlauf der Erdgeschichte verschiebe. Er wurde als "Nichtfachmann" nicht ernstgenommen, ja von manchem sogar verhöhnt. Es bedurfte der wissenschaftlichen Erkenntnisse unserer Tage, um die Richtigkeit von Wegeners "Kontinentalverschiebungstheorie'' zu beweisen. Selbst in Fachkreisen ist es wenig bekannt, daß Alfred Wegener aus scharfsinnigen Experimenten Gedanken über die Entstehung der Mondkrater durch Meteoriteneinschlag entwickelte und aus ihnen Vorstellungen über die Entstehung des Mondes und der Erde formulierte, die im Kern wesensgleich mit heutigen Kenntnissen sind. Vier Grönlandexpeditionen boten Alfred Wegener ungelöste wissenschaftliche Aufgaben, ja Abenteuer. Kurz entschlossen hatte er sich als Meteorologe und Physiker um Teilnahme an der Expedition des dänischen Polarforschers Ludvig Mylius-Erichsen beworben und war angenommen worden. Auf dieser seiner ersten GrönIand-Expedition schrieb Wegener am 25.12.1906: "Hier draußen gibt es Arbeit, die des Mannes wert ist, hier gewinnt das Leben Inhalt. Mögen Schwächlinge daheim bleiben und alle Theorien der Welt auswendig lernen, hier draußen Auge in Auge der Natur gegenüberstehen und seinen Scharfsinn an ihren Rätseln erproben, das gibt dem Leben einen ganz ungeahnten Inhalt." Die von Ulrich Wutzke verfaßte Biographie entwirft ein in seinem Detailreichtum fesselndes Bild eines Forscherlebens, dessen wichtigste Stationen Berlin, Marburg, Hamburg und Graz waren. Der Autor hatte Gelegenheit, diese Stationen zu besuchen und an Ort und Stelle zu recherchieren, ja, mit Zeitgenossen Wegeners zu sprechen, die ihn gekannt und erlebt haben, mit Expeditionsteilnehmern, seiner Witwe und seinen Töchtern. Gleichermaßen mit Akribie und Wärme zeichnet Ulrich Wutzke den Lebensweg eines sympathischen, fleißigen Menschen, der immer an der Verbesserung seiner Theorien arbeitete. Durch seinen tragischen Tod im Grönlandeis hat Wegener den Triumph seiner Theorien nicht mehr erleben können.
    Type of Medium: Monograph available for loan
    Pages: 272 S. : Ill.
    Edition: 1. Aufl.
    ISBN: 3325001734
    Series Statement: Pioniere der Menschheit. Hervorragende Forscher und Entdecker
    Language: German
    Note: Inhalt: Expeditionsleiter. - 8. Juni 1930; Pfingstsonntag. - Reifejahre. - Wohlbehütete Kindheit. - Studienjahre hier und dort. - Weltrekord!. - Ein Leben für die Wissenschaft. - Grönland!. - Auf unbekannten Wegen. - Triumph und Unglück. - Privatdozent in Marburg. - Die epochale Idee. - Neue Pläne. - Probe auf Island. - Wieder Grönland. - Auf dem Rücken des Gletschers. - Quer durch Grönland. - Treue Gefährtin. - Krieg. - Neubeginn. - Professor in Hamburg. - Karibisches Intermezzo. - Ruf nach Graz. - Ein Traum wird wahr. - Vorbereitungen. - Im Motorboot vor Grönland. - Erfolgreicher Aufstieg. - Suche nach einem Zugang. - Auf dem Kgmarujuk. - Mit Hundeschlitten ins Innere. - Der letzte Winter. - 13.6.1930, der 35. Wartetag. - Die Transporte. - Eismitte. - Erinnerungen. - Anhang. - Literaturverzeichnis. - Register.
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  • 26
    Call number: G 9135 ; AWI G6-19-54401
    Type of Medium: Monograph available for loan
    Pages: 167 Seiten , Illustrationen
    Language: German
    Note: Karlsruhe, Univ., Diss., 1988 , Inhaltsverzeichnis: 1 Einleitung und Zielsetzung. - 2. Geographie - Geologie - Tektonik. - 3. Geologisch-petrographischer Überblick - Geländebeobachtungen. - 4. Probennahme und Aufbereitung. - 5. Analytik. - 5.1. Methoden. - 5.2. Analysengenauigkeit. - 6. Darstellung und Diskussion der Ergebnisse. - 6.1. Gabbroide Gesteine. - 6.1.1 Petrographie. - 6.1.2. Chemismus. - 6.1.2.1. Nomenklatur. - 6.1.2.2. Haupt- und Spurenelemente. - 6.1.2.3. Seltene Erden und Spider-Diagramme. - 6.1.2.4. Mineralehemimus. - 6.2. Monzodioritische Gesteine. - 6.2.1. Petrographie. - 6.2.2. Chemismus. - 6.2.2.1. Haupt- und Spurenelemente. - 6.2.2.2. Seltene Erden und Spider-Diagramme. - 6.2.2.3. Mineralchemismus. - 6.3. Syenitische Gesteine. - 6.3.1. Petrographie. - 6.3.2. Chemismus. - 6.3.2.1. Haupt- und Spurenelemente. - 6.3.2.2. Seltene Erden und Spider-Diagramme. - 6.3.2.3. Mineralchemismus. - 6.4. Basalte. - 6.4.1. Petrographie. - 6.4.2. Chemismus. - 6.4.2.1. Nomenklatur. - 6.4.2.2. Haupt- und Spurenelemente. - 6.4.2.3. Seltene Erden und Spider-Diagramme. - 6.5. Ganggesteine. - 6.5.1. Petrographie und Verbreitung. - 6.5.2. Chemismus. - 6.5.2.1. Haupt- und Spurenelemente. - 6.5.2.2. Seltene Erden und Spider-Diagramme. - 7. Genetische Überlegungen. - 8. Zusammenfassung. - 9. Literaturverzeichnis. - Anhang. - Anmerkungen zu den Probenkarten 1 bis 3 und den Tabellen A bis E. - Probenkarten 1 bis 3. - Tab. A: Probenverzeichnis. - Tab. B: Haupt- und Spurenelementanalysen, normativer Mineralbestand und berechnete Parameter. - Tab. C: SEE-Analysen. - Tab. D: Mineralanalysen der Clinopyroxene. - Tab. E: Mineralanalysen der Olivine. -
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  • 27
    Monograph available for loan
    Monograph available for loan
    Amsterdam [u.a.] : Elsevier
    Call number: M 92.1175 ; AWI G4-92-0443
    Description / Table of Contents: Contents: Introduction. - Evolution of the freshwater ecosystem: the fossil record. - Lacustrine varve formation through time. - Biological and sedimentary facies of Australian salt lakes. - Freshwater fungi: fossil record and paleoecological potential. - Chrysophycean microfossils in paleolimnological studies. - Fossil diatoms and neogene paleolimnology. - Freshwater macrophytes in palaeolimnology. - Fossil pigments in paleoecology and paleolimnology. - Lacustrine thecamoebians (mainly arcellaceans) as potential tools for palaeolimnological interpretations. - Utilization of freshwater sponges in paleolimnological studies. - Conchostraca. - Guidelines and limitations to cladoceran paleoecological interpretations. - Paleoecology of limnic ostracodes: a review of some major topics. - An account of the techniques using ostracodes in palaeolimnology in Australia. - The historical ecology of aquatic insects: an overview. - The use of caddisflies (Trichoptera) in palaecology. - The significance of chironomid analysis (Insecta: Diptera) for paleolimnological research. - Aspects of freshwater mollusc ecological biogeography. - Fish taphonomy and environmental inference in paleolimnology. - Paleoecology and sedimentology of a Late Triassic lake, Culpeper Basin, Virginia, U. S. A. - Reconstruction of ancient lake environments using both autochthonous and allochthonous fossils.
    Type of Medium: Monograph available for loan
    Pages: IX, 678 S. : Abb.
    ISBN: 0444429395
    Classification:
    Historical Geology
    Language: English
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  • 28
    Journal available for loan
    Journal available for loan
    Woods Hole, Mass. : Woods Hole Oceanographic Institution
    Associated volumes
    Call number: AWI P6-89-0371
    In: Oceanus
    Type of Medium: Journal available for loan
    Pages: 112 Seiten , Illustrationen, graphische Darstellungen, Karten
    ISSN: 0029-8182
    Series Statement: Oceanus 31,2
    Language: English
    Note: Contents: A reader's guide to the Antarctic / James H. W. Hain. - Introduction: The callenge of Antarctic Science / David J. Drewry. - The Antarctic Treaty. - The Antarctic Treaty System / Lee A. Kimball. - The Antarctic Mineral Resources Negotiations / R. Tucker Scully. - The Antarctic Legal Regime and the Law of the Sea / Christopher C. Joyner. - Antarctica: Is there any oil and natural gas? / David H. Elliot. - The Southern Ocean and global climate / Arnold L. Gordon. - The Antarctic Ozone Hole / Mario J. Molina. - The Antarctic Circumpolar current / Thomas Whitworth III. - Antarctic Marine Living Resources / Kenneth Sherman, and Alan F. Ryan. - Whales / Douglas G. Chapman. - Seals / Donald B. Siniff. - The BIOMASS Program / Sayed Z. El-Sayed. - Antarctic Logistics / Alfred N. Fowler. - The Soviet Antarctic Program / Lawson W. Brigham. - The growth of Antarctic Tourism / Paul Dudley Hart. - Protecting the Antarctic Environment / Gerald S. Schatz. - Environmental Threats in Antarctica / Paul S. Bogart. - Letters. - Book reviews.
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  • 29
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-88/2
    In: CRREL Report, 88-2
    Description / Table of Contents: While many materials undergo phase change at a fixed temperature, soil systems exhibit a definite zone of phase change. The variation of unfrozen water with temperature causes a soil system to freeze of thaw over a finite temperature range. Exact and approximate solutions are given for conduction phase change of plane layers of soil with unfrozen water contents that vary linearly and quadratically with temperature. The temperature and phase change depths were found to vary significantly from those predicted for the constant-temperature or Neumann problem. The thermal conductivity and specific heat of the soil within the mushy zone varied as a function of unfrozen water content. It was found that the effect of specific heat is negligible, while the effect of variable thermal conductivity can be accounted for by a proper choice of thermal properties used in the constant-thermal-property solution.
    Type of Medium: Series available for loan
    Pages: v, 30 Seiten , Illustrationen
    Series Statement: CRREL Report 88-2
    Language: English
    Note: CONTENTS Abstract Nomenclature Preface Introduction Basic equations Two-zone problems Linear unfrozen water function Quadratic unfrozen water function Three-zone problems Linear unfrozen water function Quadratic unfrozen water function Conclusions Literature cited Appendix A: Derivation of the mushy zone equation Appendix B: Solution of the two-zone problem with a linear t and variable thermal properties
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  • 30
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-88/11
    In: CRREL Report, 88-11
    Description / Table of Contents: This study assesses the effects of atmospheric icing on broadcast transmission reflections on two mountains- Mount Mansfield in northern Vermont and Mount Washington in New Hampshire. Experience and theory suggest that antenna ice accretions produce large signal reflections. Correlations between reflection coefficients and ice accretions on Rosemount ice detectors adjacent to antennas were low and occasionally negative. The unexpected correlations may be due to factors not measured, such as antenna tuning, ice type and ice location on the antenna system. Other confounding factors may include ice detector performance and methods used to compute antenna ice accretions from the ice detectors.
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    Pages: iii, 19 Seiten , Illustrationen
    Series Statement: CRREL Report 88-11
    Language: English
    Note: CONTENTS Abstract Preface Introduction Data sources Study location and icing conditions Icing data Antenna reflection data Data preparation Analyses Conclusions Literature cited
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  • 31
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-88/5
    In: CRREL Report, 88-5
    Description / Table of Contents: This report describes the structural analysis of multi-year sea ice samples that were tested in the second 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 considered, based on the extensive field sampling that was done in the program. The effect of sample orientation on the results is also discussed.
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    Pages: iii, 32 Seiten , Illustrationen
    Series Statement: CRREL Report 88-5
    Language: English
    Note: CONTENTS Abstract Preface Introduction Sample analysis Continuous multi-year ridge core Tested multi-year ridge ice samples Unconfined constant-strain-rate compression tests Confined constant-strain-rate compression tests Uniaxial constant-strain-rate tension tests Discussion Conclusion Literature cited Appendix A: Multi-year ridge sample data
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  • 32
    Call number: AWI G2-19-93054
    Type of Medium: Monograph available for loan
    Pages: 57 Blätter , Illustrationen
    Language: English , German
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  • 33
    Monograph available for loan
    Monograph available for loan
    [Erscheinungsort nicht ermittelbar] : Arbeitsgemeinschaft Stabile Isotope
    Call number: AWI G6-19-93056
    Type of Medium: Monograph available for loan
    Pages: 31 Blätter
    Language: English , German
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  • 34
    Monograph available for loan
    Monograph available for loan
    San Diego [u.a.] : Academic Press
    Associated volumes
    Call number: AWI A7-90-0207 ; MOP 33002/42
    In: International geophysics series, 42
    Type of Medium: Monograph available for loan
    Pages: XXI, 307 Seiten , Illustrationen
    ISBN: 0120644908
    Series Statement: International geophysics series 42
    Language: English
    Note: Contents Preface Symbols Chapter 1 Introduction 1.1 Scope of Micrometeorology 1.2 Micrometeorology versus Microclimatology 1.3 Importance and Applications of Micrometeorology Problems and Exercises Chapter 2 Energy Budget near the Surface 2.1 Energy Fluxes at an Ideal Surface 2.2 Energy Balance Equations 2.3 Some Examples of Energy Budget 2.4 Applications Problems and Exercises Chapter 3 Radiation Balance near the Surface 3.1 Radiation Laws and Definitions 3.2 Shortwave Radiation 3.3 Longwave Radiation 3.4 Radiation Balance near the Surface 3.5 Radiative Flux Divergence 3.6 Applications Problems and Exercises Chapter 4 Soil Temperatures and Heat Transfer 4.1 Surface Temperature 4.2 Subsurface Temperatures 4.3 Thermal Properties of Soils 4.4 Theory of Soil Heat Transfer 4.5 Applications Problems and Exercises Chapter 5 Air Temperature and Humidity in the PBL 5.1 Factors Influencing Air Temperature and Humidity 5.2 Basic Thermodynamic Relations and Definitions 5.3 Static Stability 5.4 Mixed Layers and Inversions 5.5 Vertical Temperature and Humidity Profiles 5.6 Diurnal Variations 5.7 Applications Problems and Exercises Chapter 6 Wind Distribution in the PBL 6.1 Factors Influencing Wind Distribution 6.2 Geostrophic and Thermal Winds 6.3 The Effects of Friction 6.4 The Effects of Stability 6.5 Observed Wind Profiles 6.6 Diurnal Variations 6.7 Applications Problems and Exercises Chapter 7 An Introduction to Viscous Flows 7.1 Inviscid and Viscous Flows 7.2 Laminar and Turbulent Flows 7.3 Equations of Motion 7.4 Plane-Parallel Flows 7.5 Ekman Layers 7.6 Developing Boundary Layers 7.7 Heat Transfer in Fluids 7.8 Applications Problems and Exercises Chapter 8 Fundamentals of Turbulence 8.1 Instability of Flow and Transition to Turbulence 8.2 The Generation and Maintenance of Turbulence 8.3 General Characteristics of Turbulence 8.4 Mean and Fluctuating Variables 8.5 Variances and Turbulent Fluxes 8.6 Eddies and Scales of Motion 8.7 Applications Problems and Exercises Chapter 9 Semiempirical Theories of Turbulence 9.1 Mathematical Description of Turbulent Flows 9.2 Gradient-Transport Theories 9.3 Dimensional Analysis and Similarity Theories 9.4 Applications Problems and Exercises Chapter 10 Neutral Boundary Layers 10.1 Velocity-Profile Laws 10.2 Surface Roughness Parameters 10.3 Surface Stress and Drag Coefficient 10.4 Turbulence 10.5 Applications Problems and Exercises Chapter 11 Momentum and Heat Exchanges with Homogeneous Surfaces 11.1 The Monin-Obukhov Similarity Theory 11.2 Empirical Forms of Similarity Functions 11.3 Wind and Temperature Profiles 11.4 Drag and Heat Transfer Coefficients 11.5 Methods of Determining Momentum and Heat Fluxes 11.6 Applications Problems and Exercises Chapter 12 Evaporation from Homogeneous Surfaces 12.1 The Process of Evaporation 12.2 Potential Evaporation and Evapotranspiration 12.3 Modified Monin-Obukhov Similarity Relations 12.4 Micrometeorological Methods of Determining Evaporation 12.5 Applications Problems and Exercises Chapter 13 Marine Atmospheric Boundary Layer 13.1 Sea-Surface Characteristics 13.2 Momentum Transfer to the Sea Surface 13.3 Parameterization of Air-Sea Exchanges 13.4 Mean Profiles in the Marine Atmospheric Boundary Layer 13.5 Turbulence over Water 13.6 Applications Problems and Exercises Chapter 14 Nonhomogeneous Boundary Layers 14.1 Types of Surface Inhomogeneities 14.2 Step Changes in Surface Roughness 14.3 Step Changes in Surface Temperature 14.4 Air Modifications over Water Surfaces 14.5 Air Modifications over Urban Areas 14.6 Building Wakes and Street Canyon Effects 14.7 Other Topographical Effects 14.8 Applications Problems and Exercises Chapter 15 Agricultural and Forest Micrometeorology 15.1 Flux-Profile Relations above Plant Canopies 15.2 Radiation Balance within Plant Canopies 15.3 Wind Distribution in Plant Canopies 15.4 Temperature and Moisture Fields 15.5 Turbulence in Plant Canopies 15.6 Applications Problems and Exercises References Index
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  • 35
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    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    Call number: ZSP-168-41
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 87 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 41
    Language: German
    Note: Zugl.: Kiel, Univ., Diss., 1987
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  • 36
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-50
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 164 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 50
    Language: German
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  • 37
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-53
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 118 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 53
    Language: German
    Note: Zugl.: Kiel, Univ., Diss., 1987
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  • 38
    Call number: AWI Bio-99-0079 (5)
    In: The Northwest European pollen flora, V
    Type of Medium: Monograph available for loan
    Pages: 154 S.
    ISBN: 0444418830 , 0-444-87268-X
    Language: English
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  • 39
    Call number: AWI S2-92-0441 ; AWI G2-95-0239
    In: Developments in atmospheric science ; 17, Volume 17
    Type of Medium: Monograph available for loan
    Pages: XVIII, 425 Seiten , Illustrationen
    ISBN: 0444430148
    Series Statement: Developments in atmospheric science 17
    Language: English
    Note: Contents: List of Figures. - List of Tables. - 1. Introduction. - a. An Overview of Principal Component Analysis (PCA). - b. Outline of the Book. - c. A Brief History of PCA. - d. Acknowledgments. - 2. Algebraic Foundations of PCA. - a. Introductory Example: Bivariate Data Sets. - Monterey, California air temperatures. - Centering and rotating the data set. - Variances in the rotated frame. - Principal angles. - Principal variances. - Principal covariance. - Principal directions. - Principal components; principal directions as basis vectors. - Matrix representation. - The PCA property. - Invariance of the total variance under rotation. - Principal variances for standardized data sets. - PCA and estimates of the statistical parameters of normal populations. - PCA and the construction of Monte Carlo experiments. - Eigenvalues and eigenvectors of the covariance and scatter matrices. - b. Principal Component Analysis: Real-valued Scalar Fields. - t-centering the data set. - The scatter probe and the scatter matrix. - The eigenstructures of PCA. - The basic data set representations; analysis and synthesis formulas. - The PCA property. - Second-order properties of PCA; the total scatter . - The singular value decomposition (SVD) of a data set. - Second-order properties of PCA; correlations. - PCA characterized by the PCA property. - The asymptotic PCA property and dynamical systems. - PCA of spatial composites of data sets. - PCA of temporal composites of data sets. - c. Principal Component Analysis: Complex-valued Scalar Fields, and Beyond. - PCA of complex-valued data sets (C-PCA). - Complex algebra conventions. - The scatter probe and scatter matrix for C-PCA. - Derivation of the eigenstructures of C-PCA. - The fundamental formulas of C-PCA. - Generalization of PCA to quaternion-valued data sets (Q-PCA). - Matrix representations of complex and quaternion numbers. - PCA of matrix-valued data sets (M-PCA). - Reduction of M-PCA to C-PCA form. - d. Bibliographic Notes and Miscellaneous Topics. - Alternate interpretation of the scatter probe. - Numerical calculations of eigenstructures of a scatter matrix. - Some elementary properties of eigenstructures of a scatter matrix. - Sample space vs. state space: choosing the dual computation. - PCA for continuous domains. - PCA for continuous domains: the viewpoint of empirical orthogonal functions. - The sixteen possible domain pairs for PCA: abstract PCA. - 3. Dynamical Origins of PCA. - a. One-dimensional Hannonic Motion. - A spring-linked-mass model; general form. - A spring-linked-mass model; special form. - A numerical example of the asymptotic PCA property. - Further investigations of the asymptotic PCA property and of EOF's. - b. Two-dimensional Wave Motion. - Solution of a two-dimensional damped-wave model. - Demonstration of the asymptotic PCA property (forcing and friction absent). - Demonstration of the asymptotic PCA property (forcing and friction present). - Physical basis for eigenframe rotations. - c. Dynamical Origins of Linear Regression (LR). - From continuous to discrete solutions to the regression model. - The linear regression procedure. - Comparison of LRA and PCA. - d. Random Processes and Karhunen-Loeve Analysis. - Origins of random processes in linear settings. - Karhunen-Loeve representation of random data sets and comparison with PCA. - e. Stationary Processes and PCA. - Derivation of the PCA representation of a one-dimensional stationary process via a simple wave model. - Connections between PCA and stationary processes: the case of one dimension. - Connections between PGA and stationary processes: extension to two dimensions. - f. Bibliographic Notes. - 4. Extensions of PCA to Multivariate Fields. - a. Categories of Data and Modes of Analysis. - Examples. - Generalized notation: the concepts of "individual" and "variable" in PCA. - b. Local PCA of a General Vector Field. - The PCA formalism. - Squared correlations. - Variational origin of the scatter matrix. - Examples. - c. Global PCA of a General Vector Field: Time-Modulation Form. - The PGA formalism. - Squared correlations. - Degeneracy of global PGA to local PGA. - Variational origin of the scatter matrix. - d. Global PCA of a General Vector Field: Space-Modulation Form. - The PCA formalism. - Squared correlations. - Variational origin of the scatter matrix. - e. PCA of Spectral Components of a General Vector Field. - Fourier analysis of the vector field components. - The scatter matrix in the spectral setting. - Example of spectral PCA of a windfield. - f. Bibliographic Notes and Miscellaneous Topics. - The eight modes of analysis and Cattell's classifications. - Time-modulation PGA as a special case of matrix-valued PGA. - Applications to the PGA of wind fields. - Distinction between time-modulation PGA and complex PGA. - Applications to the PGA of storm tracks. - 5. Selection Rules for PCA. - a. Random Reference Data Sets. - b. Dynamical Origins of the Dominant-Variance Selection Rules. - A dynamical model. - Rationale for selection rules. - c. Rule A4. - Statistical basis and discussion. - Choice of λ0. - d. Rule N . - Statistical basis and discussion. - Adjustments for correlated data: effective sample size. - Asymptotic eigenvalues for large data sets. - e. Rule M. - f. Comments on Dominant-Variance Rules . - g. Dynamical Origins of the Time-History Selection Rules. - h. Rule KS2. - The white spectrum and the cumulative periodogram. - Statement of Rule KS2. - i. Rules AMPλ. - Fisher's test. - Siegel's test. - Statement of Rules AMPλ. - j. Rule Q. - k. Selection Rules for Vector-Valued Fields. - Local PCA rules. - Global PCA (time-modulated) rules. - Global PCA (space-modulated) rules. - I. A Space-map Selection Rule. - Canonic direction angles. - Differential relations between unit vectors and canonic direction angles. - An r-tile metric for comparing canonic direction angles. - Statistical aspects: critical values for class errors. - Statement of the selection rule. - m. Bibliographic Notes and Miscellaneous Topics. - Puzzles and problems underlying Rule N; the logarithmic eigenvalue curve. - Numerical intractability of the classical formulas for the eigenvalues of a random matrix. - Monte Carlo approaches to the eigenvalue distribution problem. - Comparison of Monte Carlo methods and asymptotic formulas for eigenvalue distributions. - The problem of closely spaced eigenvalues; tests for equal eigenvalues. - The generalized basis for dominant variance selection rules. - Parallel work in atomic physics. - 6. Factor Analysis (FA) and PCA. - a. Comparison of PCA, LRA, and FA. - Similarities between PCA, LRA, and FA. - Dissimilarities between PCA, LRA, and FA. - The usual algebraic form of FA; its PC and LR interpretations. - b. The Central Problems of FA. - The matrix formulation of FA. - The detailed sub-problems of FA. - c. Bibliographic Notes. - The selection rule problem in FA. - The parameter estimation problem in FA. - 7. Diagnostic Procedures via PCA and FA. - a. Dual Interpretations of a Data Set: State Space and Sample Space. - b. Interpreting E-frames in PCA State Space. - Example: graphical display of eigenvectors. - Rationales for interpreting eigenmaps and time series. - PCA as a means, rather than an end. - c. Informative and Uninformative E-frames in PCA State Space. - d. Rotating E-frames in PCA State Space (varimax). - A two-dimensional example of the varimax procedure. - The general varimax procedure. - The loss of the PCA property for rotated E-frames. - e. Projections onto E-frames in PCA State Space (procrustes). - Derivation of the procrustes technique. - Some observations on the generality of the procrustes technique. - f. Interpreting A-frames in PCA Sample Space. - g. Rotating A-frames in PCA Sample Space (varimax). - h. Projections onto A-frames in PCA Sample Space (procrustes). - i. Detecting Clusters of Points in PCA State or Sample Spaces. - Minimal spanning trees. - Defining cluster pairs, and te
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  • 40
    Monograph available for loan
    Monograph available for loan
    Cambridge [u.a.] : Cambridge Univ. Press
    Associated volumes
    Call number: AWI Bio-92-0502
    In: Studies in Polar research
    Description / Table of Contents: Now available in paperback, this wide-ranging account of the life of the tundra provides a fascinating insight into the ways in which animals, plants and climate interact in an inhospitable environment. Although the tundra is not rich in species compared with habitats in the tropics or even in temperate regions, it is an area of great interest to ecologists, botanists and zoologists alike, as an excellent example of nature contending with extreme environmental stress. As a biogeographer and ecologist the author has used his first-hand experience of the Eurasian Sub-Arctic to present an overview of life on the tundra of the Soviet Northlands that has become a classic of ecological literature. The tradition of interdisciplinary studies is very strong among Soviet tundra scientists. The present work, which was the author's first to be translated into English, provides a broad view of the complexities of life in the Soviet Northlands and makes a strong plea for its protection. This important book is a valuable guide to the life of the tundra and will interest all those interested in the conservation of its flora and fauna.
    Type of Medium: Monograph available for loan
    Pages: XIII, 213 S. : Ill., graph. Darst.
    Edition: 1. paperback ed.
    ISBN: 0521357543
    Series Statement: Studies in Polar research
    Uniform Title: Žizn' tundry
    Language: English
    Note: Contents: Translator's foreword. - Preface to English edition. - Abstract. - Map showing major place names. - 1 Introduction. - 2 What is the tundra?. - 3 Temperature and humidity in the tundra. - 4 The diversity of tundra landscapes. - 5 Snow and its role in the life of the tundra. - 6 Adaptation of living organisms to conditions in the tundra zone. - 7 Distribution of animals and plants. - 8 Interrelationships between organisms. - 9 Man and the tundra. - Bibliography. - Index. , Aus dem Russ. übers.
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  • 41
    Call number: AWI A11-96-0397
    Type of Medium: Monograph available for loan
    Pages: 76 Bl. : Ill., Kt., graph. Darst.
    Language: German
    Note: Heidelberg, Univ., Diss., 1988 , Inhaltsangabe: 1 Einleitung. - 1.1 Das Backgroundaerosol. - 1.2 Das Aerosol der Antarktis. - 2 Voraussetzungen und Grundlagen. - 2.1 Logistische Voraussetzungen: das Spurenstoffobservatorium. - 2.2 Meßtechnik: Schwermetallanalyse im Ultraspurenbereich. - 2.2.1 Schwermetallanalyse von Aerosolproben. - 2.2.2 Prinzip der Atomabsorptionsspektrometrie (AAS). - 3 Experimentelles. - 3.1 Probenvorbereitung und Filterbesaugung. - 3.2 Filterextraktion. - 3.3 AAS-Schwermetallanalyse. - 3.4 Überprüfung der Messungen. - 3.4.1 Nullpunktsdrift, Nachweisgrenzen und Reproduzierbarkeit. - 3.4.2 Standardüberprüfung. - 3.4.3 Matrixeffekt. - 3.4.4 Ausbeute der Extraktion. - 3.4.5 Beitrag des Filterblanks. - 3.4.6 Doppelmessungen. - 3.4.7 Zusammenstellung der Messfehler. - 4 Meßergebnisse. - 4.1 Berechnung der Luftkonzentrationen. - 4.2 Aussortieren kontaminierter Filter. - 4.2.1 Pb-Kontaminationen. - 4.2.2 Zn-Kontaminationen. - 4.3 Darstellung der Jahresgänge. - 4.4 Häufigkeitsverteilung der Konzentrationen. - 4.5 Mittelwerte und jahreszeitliche Schwankungen. - 5 Diskussion. - 5.1 Kontaminationen durch den Stationsbetrieb: theoretische Abschätzungen. - 5.1.1 Motorschlitten. - 5.1.2 Dieselgeneratorbetrieb. - 5.1.3 Müllverbrennung. - 5.1.4 Zusammenfassung. - 5.2 Quantitative Bewertung der Luftkonzentrationen. - 5.2.1 Charakterisierung des Meßortes. - 5.2.2 Literaturvergleich. - 5.3 Kurzfristige Variationen. - 6 Mineralstaubtransport und Schwermetall-Geochemie. - 6.1 Mineralstaubtransport in die Antarktis. - 6.2 Beiträge verschiedener Quellen zum Schwermetallbackground an der G.v.N.-Station. - 6.2.1 Maritimer Beitrag. - 6.2.2 Beitrag des Mineralstaubs. - 6.2.3 Vulkanischer Beitrag. - 6.2.4 Anthropogene Pb-Quellen. - 6.3 Anreicherungsfaktoren für Pb und Zn: kritische Betrachtungen. - 6.4 Pb-Flüsse. - 6.4.1 Berechnung des Pb-Flusses und der Pb-Konzentration im Oberflächenschnee an der G.v.N.-Station. - 6.4.2 Betrachtung der globalen atmosphärischen Pb-Flüsse. - 7 Ausblick. - Literaturverzeichnis.
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  • 42
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-51
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 140 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 51
    Language: German
    Note: Zugl.: Kiel, Univ., Diss., 1988
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  • 43
    Call number: ZSP-119-4
    In: Altenburger naturwissenschaftliche Forschungen
    Type of Medium: Series available for loan
    Pages: 70 S. : 26 Abb. , 9 Tab. ; 21 cm
    Series Statement: Altenburger naturwissenschaftliche Forschungen 4
    Language: German
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  • 44
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-47
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 167 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 47
    Language: German
    Note: Zugl.: Münster, Univ., Diss., 1986
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  • 45
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-43
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 237 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 43
    Language: English
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  • 46
    Monograph available for loan
    Monograph available for loan
    Bindlach : Gondrom
    Call number: AWI P5-17-90907
    Type of Medium: Monograph available for loan
    Pages: 126 S. , überwiegend Ill. , 28 x 32 cm
    Edition: Sonderausg.
    ISBN: 3811206044
    Language: German
    Note: Aus d. Engl. übers.
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  • 47
    Series available for loan
    Series available for loan
    Leipzig : Acad. of Sciences of the GDR, Central Inst. for Isotope and Radiation Research
    Associated volumes
    Call number: ZSP-980-76
    In: ZfI-Mitteilungen, 76
    Type of Medium: Series available for loan
    Pages: 45 S. , graph. Darst.
    Edition: Preprint
    Series Statement: ZfI-Mitteilungen 76
    Language: English
    Note: Contents: Introduction. - Material and methods. - Characterization of subjects and environmental conditions. - Experimental procedure. - Evaluation of experiments. - Results. - Investigation of protein metabolism. - Investigation of energy metabolism. - Discussion. - Acknowledgements. - References.
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  • 48
    Monograph available for loan
    Monograph available for loan
    Bremerhaven : Alfred-Wegener-Institut für Polar- und Meeresforschung
    Call number: AWI P3-19-92102
    Type of Medium: Monograph available for loan
    Pages: 80 Seiten , Illustrationen , 24 cm
    Language: German
    Note: INHALTSVERZEICHNIS: Einleitung u. Vorbemerkungen . - I. KNOCHENBRÜCHE UND VERRENKUNGEN. - 1.00 Knochenbrüche (nur die häufigsten). - 1.10 Geschlossene Knochenbrüche. - 1.11 Radiusfraktur. - 1.12 Schlüsselbeinbruch. - 1.13 Fingerbrüche. - 1.14 Zehenbrüche. - 1.15 Außenknöchelbruch (Verletzungen am Außenknöchel). - 1.20 Offene Knochenbrüche (allgemeine Behandlungs­grundsätze). - 2.00 Verrenkungen (Schulter). - 3.00 Nasenbluten (Methoden der Blutstillung). - 4.00 Schädelverletzungen (Allgemeines). - 4.10 Schädelhirntrauma (Leitsymptome). - 4.11 Vorgehen. - 4.20 Befunderhebungsbogen (Glasgow-Coma-Scale). - 5.00 Sonstige Verletzungen. - 5.10 Stark blutendeWunden. - 5.20 Offene Thoraxverletzungen. - 5.30 Offene Bauchverletzungen. - II. THERMISCHE SCHÄDEN. - 1.00 Verbrennungen. - 1.10 Sonnenbrand. - 1.20 Verblitzen der Augen (Schneeblindheit). - 2.00 Erfrierungen. - 3.00 Unterkühlung. - III. SCHÄDIGUNG DURCH CHEMIKALIEN (Vergiftung). - 1.00 Vergiftung durch Benzin und Diesel. - 1.10 Einwirkung von Batteriesäure. - 1.20 Rauch und Reizgasvergiftung. - IV. SONSTIGES. - 1.00 Appendicitis. - 2.00 Zahnschmerzen. - 3.00 Eingeschleppte Infektionserkrankungen. - 3.10 Malaria. - V. TECHNIKEN. - 1.00 Zur Technik der intramuskulären Injektion. - 2.00 Das Anlegen einer Infusion. - 3.00 Die Anwendung der Kramerschiene. - Anhang. - Die Ausstattung der Sankiste.
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  • 49
    Call number: ZSP-319/A-14
    In: Geodätische und Geophysikalische Veröffentlichungen : Reihe 1, Heft 14
    Type of Medium: Series available for loan
    Pages: 128 Seiten , Illustrationen
    ISSN: 0533-7577
    Series Statement: Geodätische und Geophysikalische Veröffentlichungen : Reihe 1 14
    Language: German
    Note: INHALTSVERZEICHNIS: 1. Einleitung. - 2. Meteorologische Daten. - 3. Material und Methoden. - 3.1. Quantitative Erfassung der Vögel und Robben. - 3.2. Vogelberingung und -markierung. - 3.3. Robbenmarkierung. - 3.4. Spezielle ethologische und ökologische Untersuchungen. - 3.4.1. Zügelpinguin (Pygoscelis antarctica). - 3.4.2. Südlicher Riesensturmvogel (Macronectes giganteus). - 3.4.3. Skua (Catharacta skua lonnbergi und c. maccormicki). - 3.4.4. Antarktisseeschwalbe (Sterna vittata). - 3.4.5. Südlicher See-Elefant (Mirounga leonina). - 4. Zur Avifauna des Untersuchungsgebietes. - 4.1. Kaiserpinguin (Aptenodytes forsteri) 4.2. Südlicher Eselspinguin (Pygoscelis papua ellsworthii). - 4.3. Zügelpinguin (Pygoscelis antarctica). - 4.4. Adeliepinguin (Pygoscelis adeliae). - 4.5. Goldschopfpinguin (Eudyptes cbrysolophus) 4.6. Wanderalbatros (Diomedea exulans). - 4.7. Mollymauk (Diomedea melanophris). - 4.8. Rußalbatros (Phoebetria palpebrata). - 4.9. Südlicher Riesensturmvogel (Macronectes giganteus). - 4.10. Silbersturmvogel (Fulmarus glacialoides). - 4.11. Weißflügelsturmvogel (Thalassoica antarctica). - 4.12. Kapsturmvogel (Daption capense). - 4.13. Schneesturmvogel (Pagodroma nivea). - 4.14. Blausturmvogel (Halobaena caerulea). - 4.15. Taubensturmvogel (Pachyptila desolate). - 4.16. Buntfußsturmschwalbe (Oceanites oceanicus exasperatus). - 4.17. Schwarzbauchmeeläufer (Fregetta tropioa) 4.18. Blauaugenscharbe (Phalaorocorax atriceps). - 4.19. Kuhreiher (Bubulous ibis). - 4.20. Chilepfeifente (Anas sibilatrix). - 4.21. Weißgesicht-Scheidenschnabel (Chionis alba). - 4.22. Südpolarskua und Braune Skua (Catharaota maccormicki und C. skua lonnbergi). - 4.23. Dominikanermöwe (Larus dominicanus). - 4.24. Küstenseeschwalbe (Sterna paradisaea). - 4.25. Antarktisseeschwalbe (Sterna vittata). - 5. Wissenschaftliche Vogelberingung - Übersicht über Beringungen und Wiederfunde. - 6. Die Robbenfauna des Untersuchungsgebietes. - 6.1 Antarktiacher Seebär (Arctooephalua gazella). - 6.2 Weddellrobbe (Leptonychotes weddelli). - 6.3 Krabbenfresser (Lobodon carcinophagus). - 6.4 Seeleopard (Hydrurga leptonyx). - 6.5 Südlicher See-Elefant (Mirounga leonina). - Zusammenfassung. - Summary. - Rezjume. - Literaturverzeichnis. - Anhang: Abbildungen. , Zusammenfassung in deutscher, englischer und russischer Sprache
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  • 50
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-88/14
    In: CRREL Report, 88-14
    Description / Table of Contents: An experimental study covering a mass flow rate ranging from 1.62 to 67.45 g/cm2-s and snow density varying from 0.377 to 0.472 g/cm3 has been conducted. Pressure drops ranging from 0.012 to 2.868 gf/cm2 were recorded. A plot of the friction factor fp vs Rep (defined as the classical Reynolds number Re for fluid flow through conduits) showed a good representation of all the experimental data. The least-squares analysis resulted in an expression of f sub p = 118/Rep to the 1.095 power for snow, in comparison with the expression f sub p = 64/Rep developed for fluid flow through porous media of randomly packed metallic and nonmetallic materials of spherical and nonspherical shapes.
    Type of Medium: Series available for loan
    Pages: iv, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 88-14
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Experimental setup and procedure Experimental results Discussion and conclusions Literature cited
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  • 51
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-88/13
    In: CRREL Report, 88-13
    Description / Table of Contents: In many sea ice engineering problems the ice sheet has been assumed to be a homogeneous plate whose mechanical properties are estimated from the bulk salinity and average temperature of the ice sheet. Typically no regard has been given to the vertical variation of ice properties in the ice sheet or to the time of ice formation. This paper first reviews some of the mechanical properties of sea ice, including the ice tensile, flexural and shear strengths, as well as the ice modulus. Equations for these properties are given as functions of the ice brine volume, which can be determined from the ice salinity and temperature. Next a numerical, finite difference model is developed to predict the salinity and temperature profiles of a growing ice sheet. In this model ice temperatures are calculated by performing an energy balance of the heat fluxes at the ice surface. The conductive heat flux is used to calculate the rate of ice growth and ice thickness by applying the Stefan ice growth equation. Ice salinities are determined by considering the amount of initial salt entrapment at the ice/water interface and the subsequent brine drainage due to brine expulsion and gravity drainage. Ice salinity and temperature profiles are generated using climatological data for the Central Arctic basin. The predicted salinity and temperature profiles are combined with the mechanical property data to provide mechanical property profiles for first-year sea ice of different thicknesses, grown at different times of the winter. The predicted profiles give composite plate properties that are significantly different from bulk properties obtained by assuming homogeneous plates. In addition the failure strength profiles give maximum strength in the interior of the sheet as contrasted with the usual assumption of maximum strength at the cold, upper ice surface. Surprisingly the mechanical property profiles are only a function of the ice thickness, independent of the time of ice formation.
    Type of Medium: Series available for loan
    Pages: v, 63 Seiten , Illustrationen
    Series Statement: CRREL Report 88-13
    Language: English
    Note: CONTENTS Abstract Preface Introduction Structure Composition Mechanical properties Strength Elastic constants The temperature-salinity model Temperature profiles Salinity profiles Composite plate properties Results Conclusions Literature cited Appendix A: Details of the equations for ice surface temperature and conductive heat flux Appendix B: Calculated profile and bulk properties of an ice sheet of varying thickness Appendix C: Calculated profile and bulk properties of 30- and 91-cm-thick ice sheets
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  • 52
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-88/16
    In: CRREL Report, 88-16
    Description / Table of Contents: Unfrozen water content as a function of temperature was measured in the laboratory using nuclear magnetic resonance (NMR) for a Windsor sandy loam soil. The data were related to previously measured soil moisture retention data through the modified Clapeyron equation with suitable adjustment for surface tension. The results show the usefulness of extending the soil freezing curve to temperatures only slightly below freezing and the soil water curve to very great suction.
    Type of Medium: Series available for loan
    Pages: iii, 42 Seiten , Illustrationen
    Series Statement: CRREL Report 88-16
    Language: English
    Note: CONTENTS Abstract Preface Introduction Soil variable ø SWC and SFC similarity Mathematical representation of SWC and SFC data NMR measurement of unfrozen water content Characterization of SWC Discussion Conclusions Literature cited Appendix A: Soil freezing curve data Appendix B: Error analysis Appendix C: Soil water curve data
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  • 53
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-88/15
    In: CRREL Report, 88-15
    Description / Table of Contents: The main points covered are: (1)modeling criteria for ships in ice, which must take into account the presence of a solid boundary at the water surface; (2) types of model ice used in various tanks-saline ice, urea-doped ice, EG/AD/S ice and synthetic ice; (3) techniques for growing model ice sheets, and achieving and monitoring the required ice properties; (4) limitations of both model ice and property measurement techniques; (5) model testing procedures for EHP and SHP tests and their limitations; (6) comparison between model test results and available full-scale trials data; (7) existing empirical and analytical or semi-analytical algorithms for predicting ship performance in level ice; (8) current research at CRREL and other research facilities to improve modeling techniques and data interpretation; and (9) novel bow designs for ice-transiting vessels.
    Type of Medium: Series available for loan
    Pages: v, 39 Seiten , Illustrationen
    Series Statement: CRREL Report 88-15
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction General considerations Ice properties Modulus, E Characteristic length, Ic Flexural strength, σf Com pressive strength, σc Shear strength, σs Poisson's ratio, ϑ Fracture toughness, Kic Density, ρi Ice-hull friction factor, fi Model ice Synthetic ice Columnar saline ice Columnar carbamide ice Fine-grained ice EG/AD/S model ice Model test procedures Ice growth and monitoring EHP tests SHP test Test data analysis--comparison with full scale Analysis of test results Comparison with full-scale data Analytical and empirical predictors Empirical predictors Analytical and semi-analytical schemes Current research efforts in ice modeling International cooperative research Ice testing CRREL research on ship-ice interaction Novel icebreaking bow designs Conclusions and final remarks Literature cited
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  • 54
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-88/18
    In: CRREL Report, 88-18
    Description / Table of Contents: The results of a laboratory testing program, carried out to compare two independent methods for determining the unfrozen water content of soils, are described. With the time domain reflectometry method, the unfrozen water content is inferred from a calibration curve of apparent dielectric constant vs volumetric water content, determined by experiment. Previously, precise calibration of the TDR technique was hindered by the lack of a reference comparison method, which nuclear magnetic resonance now offers. This has provided a much greater scope for calibration, including a wide range of soil types and temperature (unfrozen water content). The results of the testing program yielded a relationship between dielectric constant and volumetric unfrozen water content that is largely unaffected by soil type, although a subtle but apparent dependency on the texture of the soil was noted. It is suggested that this effect originates from the lower valued dielectric constant for absorbed soil water. In spite of this, the general equation presented may be considered adequate for most practical purposes. The standard error of estimate is 0.015 cc/cc, although this may be reduced by calibrating for individual soils. Brief guidelines on system and probe design are offered to help ensure that use of the TDR method will give results consistent with the relationship presented.
    Type of Medium: Series available for loan
    Pages: ii, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 88-18
    Language: English
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  • 55
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-88/20
    In: CRREL Report, 88-20
    Description / Table of Contents: This study develops design criteria for a new sludge dewatering unit operation called a sludge freezing bed. This bed uses natural freeze-thaw to condition the sludge. The total depth of sludge that can be frozen, thawed and dewatered by this process in a year is the main criterion needed for design. Laboratory tests assessed the dewaterability of freeze-thaw conditioned water treatment plant sludge and both anaerobically and aerobically digested wastewater sludges at various depths. Mathematical models for predicting the design depth were developed; values for the input parameters to the models were obtained from the literature or from laboratory and pilot-scale experiments. The dewaterability tests indicated that the depth of sludge that can be applied is not limited by drainability. Up to 2.0 m of each sludge drained in minutes after freeze-thaw conditioning. Except for the aerobically digested sludge, the solids content after drainage is high enough to permit mechanical removal. The physical and thermal characteristics of frozen sludge were found to be equivalent to those of ice. An analysis of the freezing and thawing models reveals that the design of a freezing bed will depend on the duration and intensity of the freezing and thawing seasons.
    Type of Medium: Series available for loan
    Pages: v, 58 Seiten , Illustrationen
    Series Statement: CRREL Report 88-20
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Background Purpose Scope Literature review Fundamentals of freeze separation Applications of freeze separation technology Conclusions Concept development Background Site visits Final concept Dewaterability studies Sludge characteristics Specific resistance and capillary suction time Filtrate quality Drainage tests Drying tests Development of design models Basic energy balance relationship Development of freezing model Development of thawing model Other models Evaluation of sludge input parameters Frozen sludge density, ϱf Layer thickness, ϵ Settled solids fraction, θ Thermal conductivities, Kfs, Kss Latent heat of fusion, L Absorptance, α Freezing point, Tf Summary Evaluation of climatic input parameters Ambient air temperatures, Taf, Tat Insolation, I Convection coefficient, hc Use of models for design Freezing design depth Thawing design depth Validation Example Conclusions anid recommendations Literature cited Appendix A: Sludge freezing at the Salem, New Hampshire, Wastewater Treatment Plant
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  • 56
    Call number: AWI Bio-89-0098
    Type of Medium: Monograph available for loan
    Pages: 245 S. , Ill., graph. Darst., Kt. , 30 cm
    Language: German
    Note: Inhalt: EINLEITUNG. - Zweck der Exkursion. - Grönland - Godhavn - Arktisk Station. - Vorbereitungen. - Teilnehmerliste. - Reisetagebuch. - ALLGEMEINE VERANSTALTUNGEN. - Exkursionen für alle. - Wanderung zum Inlandeis. - Besuch beim Kommunalrat von Qeqertarssuaq. - BERICHTE DER ARBEITSGRUPPEN. - Rechtliche Bewertung des Meeresumweltschutzes. - Ökologie des Wattengebietes von Nipisat. - Tiefenzonierung der Bodenfauna im Diskofjord. - Fischbiologische Arbeiten. - Algenvegetation von Disko-Island. - Beiträge zur Botanik und Pflanzenökologie. - Liste der beobachteten Vogel- und Säugetierarten. - Homothermische radioaktive Quellen: Die Nematodenfauna. - "Southern" flora and "marine" fauna in the homothermic springs. - Cryptobiosis in arctic tardigrads.
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  • 57
    Call number: ZSP-SCAR-570-10
    In: National Antarctic Research Report to SCAR, 10
    Type of Medium: Series available for loan
    Pages: 61 Seiten
    ISSN: 0179-0072
    Series Statement: National Antarctic Research Report to SCAR 10
    Language: English
    Note: 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 1987 - October 1988. - II. Planned Activities, October 1988 - October 1989. - References. - Addenda to Former Reports. - Index of Activities.
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  • 58
    Monograph available for loan
    Monograph available for loan
    Cambridge : World Data Center 'C' for Glaciology, Scott Polar Research Institute
    Call number: AWI G7-19-92220
    Type of Medium: Monograph available for loan
    Pages: VI, 37 Seiten , 30 cm
    Language: English
    Note: Contents: Preface. - Foreword. - Subject sections. - General articles. - Instruments and methods. - Theory of radio echo-sounding. - Applications to land ice. - Applications to floating ice. - Ancillary methods and observations. - Popular articles. - Theses and abstracts of theses.
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  • 59
    Call number: AWI A1-19-93224
    Type of Medium: Monograph available for loan
    Pages: 38 Seiten , Illustrationen , 23 cm
    Language: English
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  • 60
    Monograph available for loan
    Monograph available for loan
    Bremerhaven : Alfred-Wegener-Institut für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-994(1986/1987)
    In: Zweijahresbericht / Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung, [1]
    Type of Medium: Monograph available for loan
    Pages: 160 Seiten , Illustrationen
    Series Statement: Zweijahresbericht / Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung [1]
    Language: German
    Note: Inhaltsverzeichnis 1. Einleitende Übersicht 2. Nationale und internationale Zusammenarbeit 3. Forschungsarbeiten 3.1 Expeditionen 3.1.1 ANT 1V/3 (mit Kottas-und Filchner-Expeditionen) 3.1.2 ANT IV/4 3.1.3 ANT V/1, 2, 3 Die erste Winter-Weddellmeer-Expedition 3.1.4 ANT V/4 3.1.5 ANT V/5 3.1.6 ARK IV 3.2 Forschungsarbeiten der Sektionen 3.2.1 Biologie I (Zoologie) 3.2.2 Biologie II (Botanik + Mikrobiologie) 3.2.3 Chemie 3.2.4 Geologie 3.2.5 Geophysik, Glaziologie 3.2.6 Meeresphysik und Meßwesen 3.2.7 Theoretische Physik des Ozeans und der Atmosphäre 3.2.8 Experimentelle Physik des Ozeans und der Atmosphäre 3.3 Aus den Forschungsarbeiten 4. Logistik 4.1 Antarktisstationen 4.2 FS "Polarstern" und FS "Victor Hensen" 4.3 Flugzeuge und Hubschrauber 4.4 Schneefahrzeuge 4.5 Hafenlager 5. Zentrale Einrichtungen 5.1 Öffentlichkeitsarbeit 5.2 Bibliothek 5.3 Rechenzentrum 5.4 Elektroniklabor 6. Personeller Aufbau des Instituts und Entwicklung des Institutshaushalts in den Jahren 1986 und 1987 6.1 Personal 6.2 Haushalt Anhang I Anhang II Anhang III Anhang IV Anhang V
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  • 61
    Call number: ZSP-201-88/1
    In: CRREL Report, 88-1
    Description / Table of Contents: The Cornish-Windsor bridge is the longest covered bridge in the United States and has significant historical value. At a large peak flow, dynamic ice breakup of the Connecticut River can threaten the bridge and cause flood damage in the town of Windsor, Vermont. Throughout the 1985-86 winter we regularly monitored ice conditions, including a midwinter dynamic ice breakup on 27 January. We conducted controlled release tests over the operating range of the turbines at Wilder Dam upstream during both open water and ice cover conditions. These data and observations were analyzed in light of more than 60 years of temperature and discharge records. Our analysis indicates that river regulation presents alternatives for ice management that would minimize the probability of bridge damage and flooding during breakup. The flow can be regulated early in the winter to promote the growth of a stable ice cover, minimizing the total ice production in the reach. In the weeks prior to breakup, sustained releases and above-freezing air temperatures cause melting, weakening and gradual breakup of the ice, greatly reducing the flooding potential. Also, it is possible to produce a controlled ice breakup prior to an imminent natural event at lower stage and discharge. All of these ice control alternatives have associated power production costs.
    Type of Medium: Series available for loan
    Pages: iii, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 88-1
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background Analysis of historical data Field observations Controlled release tests January 1986 ice breakup Connecticut River ice control Minimizing ice production Hydrothermal melting Controlled ice breakup Conclusions Literature cited Appendix A: Detailed ice breakup chronology
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  • 62
    Call number: 98.0323 ; AWI Bio-99-0171
    Type of Medium: Monograph available for loan
    Pages: 227 S. , Ill.
    ISBN: 3258039747
    Classification:
    Historical Geology
    Language: German , English , French
    Note: Inhaltsverzeichnis = Table of contents = Table des matières. - Einleitung = Introduction = Introduction. - Bemerkungen zum Inhalt und zur Gestaltung des Buches = Comments on the Contents and lay-out of the book = Remarques quant au contenue et à la structure du livre. - Methode = Methods = Methode. - Oekogramm = Ecogram = Ecogramme. - Bestimmungsschlüssel = Identification key = Clé d'identification. - Charakterisierung der Makroreste = Description of the macro-remains = Description des macrorestes. - Weitere Makroreste = Further macro-remains = Autres macrorestes. - Literatur = Literature = Litterature. - Index der Arten = Index of species = Index des espèces. , Text dt., engl. u. franz.
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  • 63
    Series available for loan
    Series available for loan
    Washington, DC : United States Gov. Print. Off.
    Associated volumes
    Call number: SR 90.0002(1386-B) ; AWI G7-00-0234-1
    In: Satellite image atlas of glaciers of the world
    In: Professional paper
    Type of Medium: Series available for loan
    Pages: XI, B-278 S. + 2 pl.
    Series Statement: Satellite image atlas of glaciers of the world / ed. by Richards S. Williams ... B
    Language: English
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  • 64
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: M 94.0441 ; G 8979 ; FHD 77 ; AWI G1-92-0381
    Type of Medium: Monograph available for loan
    Pages: 311 S. : graph. Darst.
    ISBN: 3540187170
    Classification:
    C.3.7.
    Language: German
    Location: Upper compact magazine
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  • 65
    Monograph available for loan
    Monograph available for loan
    Englewood Cliffs, NJ : Prentice Hall
    Call number: AWI G6-95-0095
    Type of Medium: Monograph available for loan
    Pages: X, 437 Seiten , Illustrationen
    Edition: second edition
    ISBN: 0133513963
    Language: English
    Note: Contents Preface 1 The Hydrologic Cycle Composition of Rainwater Hydrology Nonmeteoric Types of Water Chemical Terms in Hydrology Suggested Reading 2 Chemical Background Units and Terminology Equilibrium Thermodynamics Activity-Concentration Relationships Diffusion Review Questions Suggested Reading 3 Organic Compounds in Natural Waters Structure of Natural Organic Solutes Functional Groups Humic Substances DOC in Natural Environments Review Question Suggested Reading 4 The Carbonate System and pH Control Carbonic Acid System Alkalinity and Titration Curves Calcium Carbonate Solubility Dolomite High-Magnesium Calcite Ground and Surface Waters in Carbonate Terrains Carbonate Chemistry in the Oceans Acid Waters Review Questions Suggested Reading 5 Clay Minerals and Ion Exchange Mineralogy and Composition Colloid Properties Retardation of Pollutant Cations in Ground water Review Questions Suggested Reading 6 Stability Relationships and Silicate Equilibria Solubility Equilibria (Congruent Solution) Incongruent Solution and Stability Diagrams Uncertainty in Mineral Stability Diagrams Graphical Derivation of the Topology of Stability Diagrams Review Questions Suggested Reading 7 Kinetics Nucleation Dissolution and Growth Dissolution of Calcite in Sea water Growth of Calcite and Aragonite in Sea water Dissolution of Silicates Review Questions Suggested Reading 8 Weathering and Water Chemistry: 1. Principles Soil Formation The Mass-Balance Approach The Thermodynamic Approach The Statistical Approach Review Questions Suggested Reading 9 Weathering and Water Chemistry: 2. Examples Amazon River System Mackenzie River System, Canada Cascade Mountains, Washington Rio Tanama System, Puerto Rico Absaroka Mountains, Wyoming Adirondack Mountains, New York Mattole River, California Waters from Ultramafic Rocks Rhine River Soil Solutions in Volcanic Ash Summary Review Topic Suggested Reading 10 Acid Deposition and Surface Water Chemistry Acidity and Alkalinity Solubility of Aluminum Cation Exchange Anion Mobility and Anion Exchange Biological Processes Chemical Weathering Integrated Models Environmental Effects Review Questions Suggested Reading 11 Evaporation and Saline Waters Evaporation of Sierra Nevada Spring Water Chemical Divides and the Hardie-Eugster Model Modifications of the Hardie-Eugster Model Examples Evaporation of Seawater Saline Formation Waters Summary Review Questions Suggested Reading 12 The Oceans Circulation Composition of Sea water Removal Processes for the Major Species Suggested Reading 13 Redox Equilibria The Standard Hydrogen Electrode and Thermodynamic Conventions Measurement of Eh pe-pH and Eh-pH Diagrams Partial Pressure or Fugacity-Fugacity Diagrams Review Questions Suggested Reading 14 Redox Conditions in Natural Waters Photosynthesis Respiration and Decay Redox Buffering Lakes The Ocean Groundwater Summary Review Questions Suggested Reading 15 Trace Elements Sources of Trace Elements Speciation, Equilibrium Solubility Control Adsorption and Coprecipitation Controls Uptake by Living Organisms Summary Review Question Suggested Reading 16 Mathematical and Numerical Models Speciation and Saturation Programs Reactions in a Uniform, Nonadvecting Medium Reactions in a Nonuniform and/ or Advecting Medium Suggested Reading 17 Isotopes Stable Isotopes Radioactive Isotopes Suggested Reading References Glossary of Geological Terms APPENDIXES I Standard-State Thermodynamic Data for Some Common Species II Selected Values for Equilibrium Constants at 298.15K (25°C) and Standard Enthalpies of Reaction Ill Table of Atomic Weights Answers to Problems Author Index Subject Index
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  • 66
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-49
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 129 S. : graph. Darst.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 49
    Language: German
    Note: Zugl.: Kiel, Univ., Diss., 1988
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  • 67
    Call number: AWI E2-89-0439
    Description / Table of Contents: Inhalt: Vorbemerkung. - Stromaufwärts. - Cree-Indianer und Pelzhandel. - Reise im Winter. - Von Carlton House nach Norden. - Neue Reisevorbereitungen. - Zu den Copper-Indianern. - Wir bauen ein Blockhaus. - Winter in Fort Enterprise. - Ärger mit den Indianern. - Zum Coppermine River. - Aufbruch zur Küste. - Erste Kontakte mit den Eskimo. - Der alte Terregannoeuck. - Bootsfahrt im Nordmeer. - Schwieriger Rückmarsch. - Hunger, Kälte und Erschöpfung. - Beschwerlicher Winter. - Hilfe in größter Not. - Nachwort. - Anmerkungen
    Description / Table of Contents: Einen Großteil seines Forscherlebens widmete Sir John Franklin der Suche nach der Nordwestpassage, jener Meeresstraße, die eine Schiffsverbindung zwischen dem Atlantischen und dem Pazifischen Ozean ermöglichen sollte. Bereits bei der ersten von ihm geleiteten Expedition, die ihn 1819 bis 1822 im Auftrag der britischen Admiralität in die kanadische Arktis führte, bestand eine Aufgabe darin, die Möglichkeiten der Schiffahrt in den nordkanadischen Küstengewässern zu erkunden. Während der kurzen arktischen Sommer, die nur als Reisezeit geeignet waren, legte die Expedition fast 9000 km in den unwirtlichen Weiten des kanadischen Nordens zurück, die bis dahin lediglich von Pelztierjägern und Agenten der Pelzhandelsfirmen aufgesucht wurden oder noch völlig unbekannt waren. Das unüberschaubare Gewirr der Flüsse und Seen nutzend, gelangte man in offenen Rindenbooten indianischer Bauart von York Factory and der Küste der Hudson Bay über den Athabascasee und den Großen Sklavensee bei der Mündung des Coppermine River endlich ans Nordpolarmeer, dessen Küste in den zerbrechlichen Fahrzeugen bis Kap Turnagain auf der Halbinsel Kent in östlicher Richtung befahren und kartiert wurde. Die tagebuchartigen Aufzeichnungen Franklins, die hier in einem Auszug wiedergegeben werden, geben eine eindrucksvolle Vorstellung von den Entbehrungen, denen die Mitglieder der Expedition ausgesetzt waren, wobei sich vor allen die Rückreise zu einem verzweifelten Kampf gegen Hunger, Kälte und Erschöpfung gestaltete. Darüber hinaus vermitteln sie wertvolle und zum Teil einzigartige Kenntnisse über das Land und seine Bewohner, die Cree- und Copper-Indianer sowie die Eskimo, auf deren Unterstützung die Reisenden in entscheidendem Maße angewiesen waren.
    Type of Medium: Monograph available for loan
    Pages: 224 S. : zahlr. Ill., Kt.
    Edition: 1. Aufl.
    ISBN: 3361009820
    Series Statement: Klassische Reisen
    Uniform Title: Narrative of a journey to the shores of the Polar Sea in the years 1819 - 22
    Language: German
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  • 68
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-52
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 118 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 52
    Language: German
    Note: Zugl.: Kiel, Univ., Diss., 1988
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  • 69
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    Call number: ZSP-168-45
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 145 S. : graph. Darst.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 45
    Language: German
    Note: Zugl.: Kiel, Univ., Diss., 1987
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  • 70
    Call number: ZSP-168-48
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 117 S. : graph. Darst.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 48
    Language: German
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  • 71
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    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    Call number: ZSP-168-46
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 115 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 46
    Language: English
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  • 72
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    Call number: ZSP-168-44
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 228 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 44
    Language: English
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  • 73
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    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    Call number: ZSP-168-55
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 72 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 55
    Language: English
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  • 74
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    Monograph available for loan
    Stuttgart : E. Schweizerbart'sche Verlagsbuchhandlung
    Associated volumes
    Call number: M 95.0515 ; AWI G1-92-0342
    In: Sediment-Petrologie
    Description / Table of Contents: Inhaltsverzeichnis: 1. Wasser. - 2. Verwitterung und Verwitterungslagerstätten. - 3. Konglomerate und Breccien. - 4. Sandsteine. - 5. Ton- und Siltsteine. - 6. Karbonatgesteine. - 7. Salzgesteine. - 8. Kieselgesteine. - 9. Sedimentäre Phosphatgesteine. - 10. Erzlagerstätten in Sedimenten. - 11. Torf und Kohle. - 12. Pyroklastische Gesteine. - 13. Transportvorgänge und Sedimentstrukturen. - 14. Sedimentäre Ablagerungsräume.
    Type of Medium: Monograph available for loan
    Pages: XVI, 1141 S.
    Edition: 4., gänzlich neubearb. Aufl.
    ISBN: 3510651383
    Classification:
    Petrology, Petrography
    Language: German
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  • 75
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    Monograph available for loan
    Dordrecht [u.a.] : Kluwer
    Call number: M 93.1059 ; AWI A6-92-0298 ; M 93.1094
    Description / Table of Contents: Atmospheric Tidal and Planetary Waves is written for workers in the fields of meteorology, climatology, aeronomy and space physics, and deals in a unified way with global scale dynamical processes within the lower, middle, and upper atmosphere. lrregular ultralong planetary waves with periods ranging from a few days to a few years are considered, as well as regular large-scale waves with basic periods of one (solar or lunar) day and one year, and the climatic mean flow (lumped together as tidal waves). The basic concept is the separation of the atmospheric flow into eigenmodes on a sphere (Hough functions). The sources and the meridional and vertical structure of these modes are discussed in detail, and Observations of tidal and planetary waves within the lower, middle, and upper atmosphere are interpreted in terms of Hough modes. The effects of nonlinear wave-wave interactions are outlined.
    Type of Medium: Monograph available for loan
    Pages: X, 348 S. , graph. Darst.
    ISBN: 9027726302
    Series Statement: Atmospheric sciences library 12
    Classification:
    Geodynamics
    Language: English
    Note: Table of Contents: Preface. - Chapter 1. lntroduction. - Chapter 2. Basic Equations. - 2.1. Hydrodynamic and Thermodynamic Equations. - 2.2. Equations of the Mean Flow. - 2.3. Equations of the Eddies. - 2.4. Energy Balance. - 2.5. Vorticity and Divergence. - 2.6. Linearization. - 2.7. Eliassen-Palm Flux. - 2.8. Ertel Potential Vorticity. - 2.9. Diffusive Separation of Atmospheric Constituents. - 2.10. Spherical Harmonics. - 2.11. Hermite Functions. - Chapter 3. External Energy Sources. - 3.1. Solar Irradiance. - 3.2. Solar Heat Input into Upper Atmosphere. - 3.3. Solar Heat Input into Lower and Middle Atmosphere. - 3.4. Lunar Gravitational Tidal Energy. - 3.5. Solar Wind Energy. - Chapter 4. Internal Energy Sources and Sinks. - 4.1. Eddy Viscosity. - 4.2. Eddy Heat Conduction. - 4.3. Latent Heat. - 4.4. Newtonian Cooling. - 4.5. Rayleigh Friction. - 4.6. Ion Drag. - 4.7. Feedback between Large-Scale Eddies and Mean Flow. - Chapter 5. Horizontal Modal Structure. - 5.1. Separation of Variables. - 5.2. Eigenvalues of Laplace's Equations. - 5.3. Gravity Waves. - 5.4. Rossby- Haurwitz Waves. - 5.5. Kelvin Waves and Yanai Waves. - 5.6. Low Frequency Waves with Positive Eigenvalues. - 5.7. Class Il Waves of Wavenumber m = 0. - 5.8. Diurnal Tides. - 5.9. Dynamo Action of Tidal Winds. - 5.10. Rossby Waves Migrating within Mean Zonal Flow. - 5.11. Influence of Zonal Mean Flow on Rossby-Haurwitz Waves. - 5.12. Salutions of Inhomogeneous Laplace Equations. - Chapter 6. Vertical Modal Structure. - 6.1. Characteristic Waves. - 6.2. Vertical Wavenumber. - 6.3. Particular Salutions. - 6.4. Boundary Conditions. - 6.5. Normal Modes. - 6.6. Height Structure of External Waves. - 6.7. Directly Driven Circulation Cells. - 6.8. Indirectly Driven Circulation Cells. - 6.9. Height Structure of Internal Waves. - 6.10. Impulsive Heat Input. - 6.11. Ray Tracing of Rossby Waves. - 6.12. Mode Conversion. - 6.13. Baroclinic Instability. - Chapter 7. Nonlinear Wave Propagation. - 7.1. Nonlinear Coupling between Rossby- Haurwitz Waves. - 7.2. Analytic Salutions for Weak Coupling of Rossby-Haurwitz Waves. - 7.3. Rossby- Haurwitz Wave Coupling in Realistic Mean Flow. - 7.4. Homogeneous and Isotropic Turbulence. - 7.5. Space-Time Analysis. - 7.6. Nonlinear Normal Mode Initialization. - 7.7. Lorenz Attractor. - 7.8. Logistic Difference Equation. - 7.9. Multiple Equilibria. - Chapter 8. Tidal Waves. - 8.1. Seasonal Tides within Lower and Middle Atmosphere (m = 0). - 8.2. Quasi-Stationary Seasonal Waves (m 〉 0). - 8.3. Climatic Mean Flow. - 8.4. Seasonal Tides within Upper Atmosphere. - 8.5. Migrating Solar Diurnal Tides within Lower and Middle Atmosphere. - 8.6. Migrating Solar Diurnal Tides within Upper Atmosphere. - 8.7. Nonmigrating Solar Diurnal Tides. - 8.8. Lunar Tides. - 8.9. Electromagnetic Effects of Tidal Waves. - 8.10. Energy and Momentum Deposition of Solar Diurnal Tides. - Chapter 9. Planetary Waves. - 9.1. Extratropical Transients. - 9.2. Southern Oscillation. - 9.3. Forty-Day Oscillations. - 9.4. Transients in the Tropical Middle Atmosphere. - 9.5. Fluctuations of Atmospheric Angular Momentum. - 9.6. Sudden Stratospheric Warnings. - 9.7. Thermospheric Response to Solar EUV Fluctuations. - 9.8. Thermospheric Storms. - 9.9. Solar Activity Effects within Middle and Lower Atmosphere. - Chapter 10. Epilogue. - References. - Subject Index.
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  • 76
    Monograph available for loan
    Monograph available for loan
    Associated volumes
    Call number: 9/G 9185 ; AWI G3-92-0228
    In: Diagenesis
    Type of Medium: Monograph available for loan
    Pages: X, 268 S. : graph. Darst.
    ISBN: 0444427201
    Series Statement: 43
    Language: English
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  • 77
    Call number: ZSP-553-18
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 24 S.
    ISBN: 8717055644
    ISSN: 0106-1046
    Series Statement: Meddelelser om Grønland : Geoscience 18
    Language: English
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  • 78
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    Series available for loan
    Koebenhavn : Grønlands Geol. Undersøgelse
    Associated volumes
    Call number: ZSP-683-134
    In: Rapport = Report
    Description / Table of Contents: Table of Contents: U-Pb and Rb-Sr age determinations on Caledonian plutonic rocks in the central part of the Scoresby Sund region, East Greenland / B. T. Hansen, R. H. Steiger & N. Henriksen. - Archaean U-Pb zircon ages form the Soresby Sund region, East Greenland / K. Higgins & B. Borchardt. - Isotopic age dating in Liverpool Land, East Greenland / B. T. Hansen & J. D. Friderichsen. - Rb-Sr and K-AR Caledonian ages from the Upper Eleonore Bay Group and Cambrian metasediments of the East Greenland Caledonian fold belt / M. G. Bonhomme & R. Caby
    Type of Medium: Series available for loan
    Pages: 51 S. : graph. Darst., Kt.
    Series Statement: The Geological Survey of Greenland : Report 134
    Language: English
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  • 79
    Call number: ZSP-553-19
    In: Meddelelser om Grønland
    Type of Medium: Monograph available for loan
    Pages: 52 S. : Ill., graph. Darst
    ISBN: 8717055628
    ISSN: 0106-1046
    Series Statement: Meddelelser om Grønland : Geoscience 19
    Language: English
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  • 80
    Monograph available for loan
    Monograph available for loan
    Kingston : Antarctic Division
    Call number: AWI P3-89-0313
    Type of Medium: Monograph available for loan
    Pages: 140 Seiten , Illustrationen
    Edition: third edition
    ISBN: 0642117837
    Language: English
    Note: 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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  • 81
    Call number: ZSP-558-24 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Type of Medium: Series available for loan
    Pages: 97 S.
    Language: English
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  • 82
    Series available for loan
    Series available for loan
    Leipzig : Deutscher Verlag für Grundstoffindustrie
    Associated volumes
    Call number: SR 99.0015(409) ; ZSP-292-409
    In: Freiberger Forschungshefte, 409
    Type of Medium: Series available for loan
    Pages: 54 Seiten , Illustrationen
    Edition: 1. Auflage
    ISBN: 3-342-00920-9
    ISSN: 0071-9409
    Series Statement: Freiberger Forschungshefte : C 409 : Geowissenschaften - Geologie
    Language: German
    Note: 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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  • 83
    Call number: SR 99.0015(412) ; ZSP-292-412
    In: Freiberger Forschungshefte, 412
    Type of Medium: Series available for loan
    Pages: 68 Seiten , Illustrationen
    Edition: 1. Auflage
    ISBN: 3-342-00923-3
    ISSN: 0071-9409
    Series Statement: Freiberger Forschungshefte : C 412 : Geowissenschaften, Geologie
    Language: German
    Note: 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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  • 84
    Series available for loan
    Series available for loan
    Leipzig : VEB Deutscher Verlag für Grundstoffindustrie
    Associated volumes
    Call number: SR 99.0015(418) ; ZSP-292-418
    In: Freiberger Forschungshefte, 418
    Type of Medium: Series available for loan
    Pages: 75 Seiten , Illustrationen, Diagramme, Karten
    Edition: 1. Auflage
    ISBN: 3-342-00930-6
    ISSN: 0071-9409
    Series Statement: Freiberger Forschungshefte : C 418 : Geowissenschaften - Geologie
    Language: German
    Note: 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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  • 85
    Call number: SR 90.0068(40) ; ZSP-320(E,40)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 7 S. + 1 Kt.-Beil.
    Series Statement: Geologisches Jahrbuch : Reihe E 40
    Language: German
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  • 86
    Call number: SR 90.0068(39) ; SR 90.0068(39) 2 Ex. ; ZSP-320(E,39)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 252 S. : Ill., graph. Darst., Kt.
    Series Statement: Geologisches Jahrbuch : Reihe E 39
    Language: English
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  • 87
    Call number: SR 90.0916(61) ; AWI G6-18-42972
    In: Sonderveröffentlichungen des Instituts der Universität Köln, Nr. 61
    Type of Medium: Series available for loan
    Pages: 105, 13 S. : Ill., graph. Darst., Kt.
    Series Statement: Sonderveröffentlichungen / Geologisches Institut der Universität zu Köln 61
    Language: German
    Note: 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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  • 88
    Call number: SR 99.0054(66) ; ZSP-320(B,66)
    In: German Antarctic North Victoria Land Expedition 1982/83
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 321 S. + 2 Kt.-Beil.
    Series Statement: 66
    Language: English
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  • 89
    Call number: SR 90.0068(37) ; SR 90.0068(37) 2. Ex. ; ZSP-320(E,37)
    In: Geologisches Jahrbuch
    Type of Medium: Series available for loan
    Pages: 54 S.
    Series Statement: Geologisches Jahrbuch : Reihe E 37
    Language: English
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  • 90
    Series available for loan
    Series available for loan
    Berlin : Nationalkomitee für Geodäsie und Geophysik bei der Akademie der Wissenschaften der DDR
    Associated volumes
    Call number: 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
    Type of Medium: Series available for loan
    Pages: 136 Seiten , Illustrationen
    Series Statement: Geodätische und geophysikalische Veröffentlichungen : Reihe 2, Solarterrestrische Beziehungen und Physik der Atmosphäre 28
    Language: English
    Note: 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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  • 91
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    Monograph available for loan
    Wien [u.a.] : Springer
    Associated volumes
    Call number: G 8407/3 ; 14334/1 ; 14334/2 ; AWI G8-92-0398
    In: Angewandte Geophysik
    Type of Medium: Monograph available for loan
    Pages: 420 S. : Ill., graph. Darst., Kt.
    ISBN: 3211817999
    Language: German
    Note: Inhaltsverzeichnis: 1. Einführung / Dr. rer nat. habil. Heinz Militzer. - 2. Theorie seismischer Wellen / Dr. rer. nat. habil. Rolf Rösler. - 2.1. Allgemeine Grundlagen. - 2.1.1. Definition seismischer Wellen. - 2.1.2. Deformationen im elastischen Medium. - 2.1.3. Elastische Spannungen in festen Körpern. - 2.2. Stoffgesetze als Verknüpfung von Spannungen und Deformationen. - 2.2.1. Ideale Elastizität. - 2.2.2. Anelastizität. - 2.3. Die Wellengleichung und einige wichtige Lösungen im unbegrenzten Raum. - 2.3.1. Isotropes Material. - 2.3.1.1. Kompressions-(P-) und Scherungs-(S-) Wellen. - 2.3.1.2. Ebene Wellen. - 2.3.1.3. Kugelwellen. - 2.3.1.4. Zylinderwellen. - 2.3.2. Anisotropes Material. - 2.3.3. Seismische Wellen im anelastischen Material. - 2.4. Das Wellenfeld im geschichteten Raum. - 2.4.1. Stetigkeitsbedingungen an Diskontinuitätsflächen. - 2.4.2. Reflexion und Brechung ebener Wellen an Diskontinuitätsflächen. - 2.4.2.1. Die einfallende Welle ist eine SH-Welle. - 2.4.2.2. Die einfallende Welle ist eine P-Welle. - 2.4.2.3. Die einfallende Welle ist eine SV-Welle. - 2.4.3. Oberflächen- und Grenzschichtwellen. - 2.4.3.1. RAYLEIGH-Wellen. - 2.4.3.2. LOVE-Wellen. - 2.4.3.3. Kanal- oder Flözwellen. - 2.5. Die Berechnung reflexionsseismischer Wellenfelder. - 2.5.1. Methode der Integralgleichungen. - 2.5.1.1. Die KIRCHHOFFsche Formel. - 2.5.1.2. Die Anwendung der KIRCHHOFFschen Formel auf Diffraktionswellen. - 2.5.2. Methoden der endlichen Differenzen. - 3. Petrophysikalische Grundlagen / Dr. rer. nat. habil. Heinz Militzer. - 3.1. Ausbreitungsgeschwindigkeit. - 3.1.1. Allgemeine Grundlagen. - 3.1.2. Geschwindigkeitsbestimmungen unter Laborbedingungen. - 3.1.3. Einige Ergebnisse von Geschwindigkeitsbestimmungen an Gesteinsproben. - 3.2. Absorption. - 3.2.1. Allgemeine Grundlagen. - 3.2.2. Bestimmung des Absorptionskoeffizienten unter Laborbedingungen. - 3.2.3. Einige Ergebnisse der Bestimmung von Absorptionskoeffizienten an Gesteinsproben. - 3.3. Schallhärte. - 3.3.1. Allgemeine Grundlagen. - 3.3.2. Einige Daten zur Schallhärte. - 4. Apparativ-methodische Grundlagen / Dr. rer. nat Bernhard Forkmann ; Tit. ao. Prof. Dipl. Ing. Dr. mont. Rupert Schmöller. - 4.1. Anregung seismischer Wellen. - 4.1.1. Übersicht. - 4.1.2. Impulsanregung. - 4.1.3. Vibrationsanregung. - 4.1.4. Richtstrahlcharakteristik. - 4.2. Aufnahme seismischer Wellen. - 4.2.1. Übersicht. - 4.2.2. Geophone. - 4.2.3. Hydrophone. - 4.2.4. Bündelung. - 4.3. Registrierapparaturen. - 4.3.1. Übersicht. - 4.3.2. Analogapparaturen. - 4.3.3. Digitalapparaturen. - 4.3.4. Zusatz- und Spezialgeräte. - 4.3.4.1. Telemetriesysteme. - 4.3.4.2. Signalgenerator für Vibratorsteuerung. - 4.3.4.3. Korrelator/Summator. - 4.3.4.4. Stapelapparatur für Ingenieurseismik. - 5. Methodik seismischer Erkundungsarbeiten / Tit. ao. Prof. Dipl. Ing. Dr. mont. Rupert Schmöller. - 5.1. Projektierung. - 5.2. Feldmethodik der Reflexionsseismik. - 5.2.1. Trupporganisation. - 5.2.2. Methodik der Feldarbeiten. - 5.2.2.1. Energieanregung. - 5.2.2.2. Beobachtungsschemata. - 5.2.2.3. Besonderheiten der Scherwellenseismik. - 5.2.2.3.1. Scherwellenerzeugung. - 5.2.2.3.2. Aufnahmetechnik in der Scherwellenseismik. - 5.2.2.4. Besonderheiten der 3D-Seismik. - 5.2.2.5. Hilfsprozesse. - 5.2.2.5.1. Störwellenanalyse. - 5.2.2.5.2. Aufzeitschießen. - 5.2.2.5.3. Refraktionsseismische Kurzaufstellungen. - 5.2.2.6. Datenkontrolle und -aufbereitung. - 5.3. Besonderheiten der Seeseismik. - 5.3.1. Organisation. - 5.3.2. Meßtechnik auf See. - 5.3.3. Positionsbestimmung auf See. - 5:3.3.1. Radio-Navigation. - 5.3.3.2. Satelliten-Navigation. - 5.3.3.3. Andere Navigationssysteme. - 5.3.4. Flachwasserseismik. - 5.4. Feldmethodik der Refraktionsseismik. - 6. Geschwindigkeitsbestimmung / Dr. rer. nat. Bernhard Forkmann. - 6.1. Modellbetrachtungen. - 6.2. Geschwindigkeitsdefinitionen. - 6.3. Geschwindigkeitsbestimmung aus seismischen Messungen in Bohrungen. - 6.4. Geschwindigkeitsbestimmung aus reflexionsseismischen Messungen. - 6.5. Geschwindigkeitsbestimmung aus refraktionsseismischen Messungen. - 6.6. Gesehwindigkeitsansatz. - 7. Grundlagen der Analyse seismischer Signale / Dr. rer. nat. Bernhard Forkmann ; Dr. rer. nat. habil. Rolf Rösler. - 7.1. Systemtheoretische Betrachtungen zur Entstehung des Seismogramms. - 7.1.1. Lineare Systeme. - 7.1.2. Übertragungsfunktion und Impulsantwort. - 7.1.3. Physikalisch realisierbare Systeme. - 7.2. Das digitalisierte Seismogramm als diskrete (getastete) Funktion. - 7.2.1. Die Abtastung. - 7.2.1.1. Das Abjast-Theorem. - 7.2.1.2. Der Aliasing-Effekt. - 7.2.1.3. Die Signalrekonstruktion. - 7.2.2. Die Übertragungsfunktion diskreter Systeme. - 7.2.3. Die Z-Transformation. - 7.2.4. Das Signalkonzept. - 7.2.4.1. Die Definition des digitalen Wavelets. - 7.2.4.2. Das seismische Modellsignal. - 7.2.5. Das synthetische Seismogramm. - 7.3. Digitale Filter. - 7.3.1. Der Zusammenhang mit analogen Frequenzfiltern. - 7.3.2. Die Darstellung digitaler Frequenzfilter. - 7.3.2.1. Die Umwandlung von analogen in digitale Frequenzfilter. - 7.3.2.2. Digitale Nullphasenfilter. - 7.3.3. Geschwindigkeitsfilter. - 7.4. Das Seismogramm als stationäre Wertereihe. - 7.4.1. Das Impulsseismogramm als Zufallsprozeß. - 7.4.2. Stationarität und Ergodizität. - 7.4.3. Die Auto- und Kreuzkorrelationsfunktion. - 7.4.4. Die Dekonvolution. - 7.4.4.1. Optimalfilter nach WIENER. - 7.4.4.2. Vorhersage-Filterung. - 7.4.4.3. Homomorphe Dekonvolution. - 8. . Bearbeitung reflexionsseismischer Daten / Tit. ao. Prof. Dipl. Ing. Dr. mont. Rupert Schmöller. - 8.1. Stellung der Bearbeitung im Gesamtprozeß. - 8.2. Zielstellung der seismischen Datenbearbeitung. - 8.3. Methoden der seismischen Datenbearbeitung. - 8.4. Darstellungsmöglichkeiten der seismischen Informationen. - 8.4.1. Profildarstellungen. - 8.4.2. Flächendarstellungen. - 8.4.3. Andere Darstellungen. - 8.5. Rechentechnik. - 8.6. Technologie der Datenbearbeitung. - 8.7. Standardmäßige Datenbearbeitungsprozesse. - 8.7.1. Vorbereitungsphase. - 8.7.2. Amplitudenausgleich. - 8.7.3. Statische Korrekturen und automatische statische Restkorrekturen. - 8.7.4. Dynamische Korrektur. - 8.7.5. Unterdrückung von Erst- und Refraktionseinsätzen. - 8.7.6. Die CMP-Stapelung. - 8.7.7. Frequenzfilterung. - 8.7.8. Inverse Filterung. - 8.8. Weiterführende Bearbeitungen. - 8.8.1. Seismische Migration. - 8.8.1.1. Horizontalmigration. - 8.8.1.2. Wellenfrontmigration und Diffraktionsstapeln. - 8.8.1.3. Migration als Lösung der Wellengleichung. - 8.8.1.4. Tiefenmigration. - 8.8.1.5. 3D-Migration. - 8.8.2. Geschwindigkeitsfilter. - 8.8.3. Waveletprocessing. - 9. Auswertung und Darstellung seismischer Daten / Dr. phil. Franz Weber. - 9.1. Geometrie der Wellenwege und zugehörige Laufzeitkurven (Reflexionsseismik). - 9.1.1. Reflexion an einer Schichtgrenze. - 9.1.2. Horizontaler n-Schichtfall. - 9.1.3. Dreidimensionaler Fall. - 9.1.3.1. Schußpunkt liegt im Profil. - 9.1.3.2. Schußpunkt liegt außerhalb des Profils. - 9.2. Einige einfache Anwendungen bei der Tiefendarstellung von Reflexionen. - 9.2.1. Tangentenmethode. - 9.2.2. Spiegelpunktmethode. - 9.3. Gradientmedien. - 9.3.1. Problemstellung. - 9.3.2. Allgemeine Beziehungen. - 9.3.3. Lineare Geschwindigkeitszunahme mit der Tiefe. - 9.3.4. Wellenfrontkarten. - 9.4. Beugungswellen. - 9.5. Mehrfachreflexionen (multiple Reflexionen). - 9.5.1. Multiple mit langem Weg. - 9.5.2. Mehrfachreflexionen mit kurzem Wellenweg. - 9.5.3. Abschwächung und Eliminierung von Mehrfachreflexionen. - 9.6. Spezielle Lagerungsformen. - 9.6.1. Gekrümmte Reflektoren. - 9.6.2. Antiklinale. - 9.6.3. Synklinale. - 9.6.4. Brüche. - 9.7. Geologische Modellierung reflexionsseismischer Ergebnisse. - 9.7.1. Kriterien für das Erkennen von Reflexionen. - 9.7.2. Kontrolle des Datenmaterials. - 9.7.3. Zeit- und Tiefenprofile. - 9.7.4. Kartend
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  • 92
    Monograph available for loan
    Monograph available for loan
    New York [u.a.] : Springer
    Call number: M 93.0653 ; AWI A6-92-0220
    Type of Medium: Monograph available for loan
    Pages: xiv, 710 S.
    Edition: 2. ed., corr. 2. printing
    ISBN: 038796388X
    Classification:
    Geodynamics
    Language: English
    Note: 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.
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  • 93
    Call number: AWI E1-89-0347
    Type of Medium: Monograph available for loan
    Pages: 50 Seiten , Illustrationen
    Language: English
    Note: Contents: Preface. - Part I German oceanographic institutions. - Part II German oceanographic expeditions. - Part III German oceanographers. - References.
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  • 94
    Series available for loan
    Series available for loan
    Leipzig : Akademie der Wissenschaften der DDR, Zentralinstitut für Isotopen- und Strahlenforschung
    Associated volumes
    Call number: ZSP-980-131
    In: ZfI-Mitteilungen, Nr. 131
    Type of Medium: Series available for loan
    Pages: 142 Seiten , Illustrationen
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 131
    Language: German
    Note: 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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  • 95
    Call number: AWI G6-19-93060
    Type of Medium: Monograph available for loan
    Pages: 6 Seiten, 29 Blätter, 7 Seiten
    Language: German , French , English
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  • 96
    Monograph available for loan
    Monograph available for loan
    Boulder, Colo. : Plant Ecology Laboratory, Institute of Arctic and Alpine Research University of Colorado
    Call number: AWI G3-23-94998
    Type of Medium: Monograph available for loan
    Pages: 29, 27 Seiten , Illustrationen
    Series Statement: U.S. Department of Energy R4D Program Data Report
    Language: English
    Note: 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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  • 97
    Series available for loan
    Series available for loan
    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Associated volumes
    Call number: ZSP-168-40
    In: Berichte zur Polarforschung
    Type of Medium: Series available for loan
    Pages: 161 S. : graph. Darst., Kt.
    ISSN: 0176-5027
    Series Statement: Berichte zur Polarforschung 40
    Language: English
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  • 98
    Call number: AWI G7-88-0758
    Type of Medium: Monograph available for loan
    Pages: X, 368 S. , Ill., Kt.
    ISBN: 9027723702
    Series Statement: Glaciology and Quaternary Geology 4
    Language: English
    Note: 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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  • 99
    Monograph available for loan
    Monograph available for loan
    Berlin : Verlag Neues Leben
    Call number: AWI E3-18-91898
    Type of Medium: Monograph available for loan
    Pages: 32 Seiten , Illustrationen , 20 cm
    ISBN: 3355005347 (geh.)
    Series Statement: Das neue Abenteuer 492
    Language: German
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  • 100
    Call number: AWI G7-19-92305
    Type of Medium: Monograph available for loan
    Pages: 116 Blätter
    Language: English
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