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  • 1
    facet.materialart.12
    Cambridge : Cambridge University Press
    Signatur: 9781107306189 (e-book)
    Beschreibung / Inhaltsverzeichnis: "The Earth is a dynamic system. Internal processes, together with external gravitational forces of the Sun, Moon and planets, displace the Earth's mass, impacting on its shape, rotation and gravitational field. Doug Smylie provides a rigorous overview of the dynamical behaviour of the solid Earth, explaining the theory and presenting methods for numerical implementation. Topics include advanced digital analysis, earthquake displacement fields, Free Core Nutations observed by the Very Long Baseline Interferometric technique, translational modes of the solid inner core observed by the superconducting gravimeters, and dynamics of the outer fluid core. This book is supported by freeware computer code, available online for students to implement the theory. Online materials also include a suite of graphics generated from the numerical analysis, combined with 100 graphic examples in the book to make this an ideal tool for researchers and graduate students in the fields of geodesy, seismology and solid earth geophysics"--
    Materialart: 12
    Seiten: 1 Online-Ressource (XII, 543 Seiten) , Illustrationen
    Ausgabe: Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries.
    ISBN: 9781107306189
    Sprache: Englisch
    Anmerkung: Contents Preface and acknowledgments The book website www.cambridge.org/smylie 1 Introduction and theoretical background 1.1 Scalar, vector and tensor analysis 1.2 Separation of vector fields 1.3 Vector spherical harmonics 1.4 Elasticity theory 1.5 Linear algebraic systems 1.6 Interpolation and approximation 2 Time sequence and spectral analysis 2.1 Time domain analysis 2.2 Linear optimum Wiener filters 2.3 Frequency domain analysis 2.4 Fourier series and transforms 2.5 Power spectral density estimation 2.6 Maximum entropy spectral analysis 3 Earth deformations 3.1 Equilibrium equations 3.2 The reciprocal theorem of Betti 3.3 Radial equations: spheroidal and torsional 3.4 Dynamical equations 3.5 Solutions near the geocentre 3.6 Numerical integration of the radial equations 3.7 Fundamental, regular solutions in the inner core 4 Earth's rotation: observations and theory 4.1 Reference frames 4.2 Polar motion and wobble 4.3 The dynamics of polar motion and wobble 4.4 Nutation and motion of the celestial pole 5 Earth's figure and gravitation 5.1 Historical development 5.2 External gravity and figure 5.3 Equilibrium theory of the internal figure 5.4 Gravity coupling 6 Rotating fluids and the outer core 6.1 The inertial wave equation 6.2 Dynamics of the fluid outer core 6.3 Scaling of the core equations 6.4 Compressibility and density stratification 7 The subseisniic equation and boundary conditions 7.1 The subseismic wave equation 7.2 Deformation of the shell and inner core 8 Variational methods and core modes 8.1 A subseismic variational principle 8.2 Representation of the functional 8.3 Finite element support functions 8.4 Boundary conditions and constraints 8.5 Numerical implementation and results 8.6 Rotational splitting and viscosity 8.7 A viscosity profile for the outer core 9 Static deformations and dislocation theory 9.1 The elasticity theory of dislocations 9.2 The theory for realistic Earth models 9.3 Changes in the inertia tensor and the secular polar shift Appendix A Elementary results from vector analysis A.1 Vector identities A.2 Vector calculus identities A.3 Integral theorems Appendix B Properties of Legendre functions B.1 Recurrence relations B.2 Evaluation of Legendre functions Appendix C Numerical Earth models C.1 The Earth models References Fortran index Subject index
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  • 2
    facet.materialart.
    Unbekannt
    Universität Göttingen,Abteilung Bodenphysik
    In:  Universität Göttingen
    Publikationsdatum: 2024-06-17
    Beschreibung: research
    Schlagwort(e): Depth ; Time Function ; MicrobialBiomass ; Ploughed ; Grassland Typudalfs ; Lower Saxony ; Germany
    Sprache: Englisch
    Materialart: doc-type:book
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    facet.materialart.
    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-05-08
    Beschreibung: Inhaltsübersicht : Helmut Keupp & Daria Ivanova: Calcareous dinoflagellate cysts from the Late Jurassic and Early Cretaceous of the Western Forebalkan, Bulgaria … 3-31 ; Helmut Keupp & Rolf Kohring: Kalkige Dinoflagellatenzysten aus dem Obermiozän (NN 11 ) W von Rethimnon (Kreta) … 33-53 ; Dimitris Frydas, Helmut Keupp & Spyridon M. Bellas: Biostratigraphical research in Late Neogene marine deposits of the Chania Province, western Crete, Greece … 55-67 ; Glenn Fechner: "Microforaminiferal" lining taphonomy: A cautionary note … 69-81 ; Uwe Gloy & Rolf Kohring: Py-GC-Analysen an einem fossilen Harz aus dem Oberen Jura (Grube Guimarota/Portugal) … 83-88 ; Joachim Gründel: Truncatelloidea (Littorinimorpha, Gastropoda) aus dem Lias und Dogger Deutschlands und Nordpolens … 89-119 ; Helmut Keupp, Martin Röper & Adolf Seilacher: Paläobiologische Aspekte von syn vivo-besiedelten Ammonoideen im Plattenkalk des Ober-Kimmeridgiums von Brunn in Ostbayern … 121-145 ; Nikolaus Malchus: Identification of larval bivalve shells by means of simple statistics … 147-160 ; Carsten Helm, John W.M. Jagt & Manfred Kutscher: Early Campanian ophiuroids from the Hannover area (Lower Saxony, Northern Germany) … 161-173 ; Christian Neumann: New spatangoid echinoids (Echinodermata) from the Upper Cretaceous of Jordan: taxonomy and phylogenetic importance … 175-189 ; Oldrich Fejfar und Daniela C. Kalthoff: Aberrant cricetids (Platacanthomyines, Rodentia, Mammalia) from the Miocene of Eurasia … 191-206 ; Thekla Pfeiffer: Sexualdimorphismus, Ontogenie und innerartliche Variabilität der pleistozänen Cervidenpopulationen von Dama dama geiselana Pfeiffer 1998 und Cervus elaphus L. (Cervidae, Mammalia) aus Neumark-Nord (Sachsen-Anhalt, Deutschland) … 207-313 ; Beiträge zur Baikal-Rift-Forschung : MJ. Kuzmin et al.: Climatic events in Siberia during upper Brunhes according to the Lake Baikal sedimentary record … 315-323 ; S. K. Krivonogov et al.: The prospects of GIS use in investigation of the Baikal area … 325-328 ; Y. Masuda et al.: Perspective Studies of Freshwater Sponges in Lake Baikal … 329-332 ; Oleg A. Timoshkin: Biology of Lake Baikal: „White Spots“ and Progress in Research … 333-348 ; Bibliographie : Uwe Gloy: Bibliographie 1997, Institut für Paläontologie, FU Berlin … 349-352 ;
    Beschreibung: thesis
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:560 ; Paläobiologie ; Paläontologie
    Sprache: Deutsch , Englisch
    Materialart: doc-type:book
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  • 4
    facet.materialart.
    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-05-06
    Beschreibung: Klaus Bandel & Thorsten Kowalke: Systematic value of the larval shell of fossil and modern Vanikoridae, Pickworthiidae and the genus Fossarus (Caenogastropoda, Mollusca) … 3 ; R. Thomas Becker: Eine neue und älteste Glatziella (Clymeniida) aus dem höheren Oberdevon des Nordsauerlandes (Rheinisches Schiefergebirge) … 31 ; Glenn G. Rechner: Eine Dinoflagellaten-Zysten-Vergesellschaftung des tieferen Rupelium (Unter-Oligozän) aus transgressiven Ablagerungen nördlich von Altenhausen in Sachsen-Anhalt (Blatt 3733, Erxleben) … 43 ; Joachim Gründel: Zur Kenntis einiger Gastropoden-Gattungen aus dem französischen Jura und allgemeine Bemerkungen zur Gastropodenfauna aus dem Dogger Mittel- und Westeuropas … 69 ; Joachim Gründel: Heterostropha (Gastropoda) aus dem Dogger Norddeutschlands und Nordpolens. I. Mathildoidea (Mathildidae) … 131 ; Joachim Gründel: Heterostropha (Gastropoda) aus dem Dogger Norddeutschlands und Nordpolens. III. Opisthobranchia … 177 ; C. M. Hampton & J. E. Rae: Genesis of the fossiliferous Pleistocene Hima Limestone, western Uganda, as indicated by its isotopic composition … 225 ; Helmut Keupp: Anomal kiellose Hildoceratidae (= „Subfamilie Monestierinae SAPUNOV 1965“): Ursache taxonomischer Konfusionen (Ammonoidea, Toarcium) … 233 ; Helmut Keupp: Paläopathologische Analyse einer „Population“ von Dactylioceras athleticum (SIMPSON) aus dem Unter-Toarcium von Schlaifhausen/Oberfranken … 243 ; Rolf Kohring: Eischalen neognather Vögel aus dem mitteleozänen Geiseltal (Deutschland) … 269 ; Rolf Kohring: Eggshell Structure as Evidence in Avian Systematics - Preliminary Results … 281 ; Jürgen Kriwet: Beitrag zur Kenntnis der Fischfauna des Oberjura (unteres Kimmeridgium) der Kohlengrube Guimarota bei Leiria, Mittel-Portugal: 2. Neoselachii (Pisces, Elasmobranchii) ... 293 ; Thomas Schlüter: Validity of the Paratrichoptera - an extinct Insect Order related to the Mecoptera, Diptera, Trichoptera or Lepidoptera? Suggestions based on discoveries in the Upper Triassic Molteno Formation of South Africa … 303 ; Rolf Kohring: Bibliographie 1996, Institut für Paläontologie, Freie Universität Berlin … 313 ;
    Beschreibung: thesis
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:560 ; Paläobiologie ; Paläontologie
    Sprache: Deutsch , Englisch
    Materialart: doc-type:book
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  • 5
    facet.materialart.
    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften Freie Universität Berlin
    In:  SUB Göttingen | 98 B 4059
    Publikationsdatum: 2024-05-03
    Beschreibung: Die Andenkordillere entstand entlang des westlichen Randes von Südamerika aufgrund der Subduktion der ozeanischen Nazca-Platte unter die kontinentale Südamerikaplatte seit dem Jura. Als solche werden die Anden als ein klassisches Beispiel eines Orogens entlang eines aktiven Kontinentalrandes betrachtet. Obwohl die gegenwärtige Physiographie das Ergebnis der Andinen Tektonik ist, sind die Zentralanden das Ergebnis von einem komplexen Zusammenspiel von Präkambrischen und Paläozoischen Terrane-Akretionen und Phasen von Kompression und Extension. Die Puna und die Ostkordillere spielen in diesem Zusammenhang eine entscheidende Rolle in der tektonischen Entwicklung der Zentralanden. Die vorliegende Untersuchung befasst sich mit dem Gebiet der nördlichen argentinischen Puna und der Ostkordillere, von etwa 22°S bis 24°S und 65 °W bis 66°30' W. Es wurden etwa 1200 km Seismik interpretiert, deren Ergebnis als Randbedingung in die Konstruktion des gravimetrischen 3D Modells des Gebietes einging.
    Beschreibung: The Andes Mountains developed along the western margin of SouthAmerica in response to the subduction of the oceanic Nazca Plate below the South American plate since the Jurassic times. It is considered as one of the classic examples of a mountain chain developed in an active continental margin. Although their present physiography is given by the Andean tectonics, the Central Andes are the result of complex interplay of Precambrian and Paleozoic terrane accretion and phases of compression and extension. The Puna and Eastern Cordillera represent key elements in the tectonic evolution of the Central Andes. The present study covers a region of the northern Puna and Eastern Cordillera extending from approximately 22°S to 24°S and 65 °W to 66°30'W in Argentina. About 1200 km of seismic lines were interpreted and were used as a geometrical constraint for the construction of a 3D gravity model of the area.
    Beschreibung: thesis
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:558 ; Anden ; Argentinien ; Seismik
    Sprache: Englisch
    Materialart: doc-type:book
    Format: 192
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  • 6
    facet.materialart.
    Unbekannt
    In:  Abstracts | Reports on geodesy
    Publikationsdatum: 2024-05-02
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/conferenceObject
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  • 7
    facet.materialart.
    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-05-02
    Beschreibung: In der vorliegenden Arbeit wird die Krustenstruktur im östlichen Andenvorland untersucht. Das Gebiet umfaßt den Nordwesten Argentiniens, zwischen dem 22° und 25° südlichen Breitengrad und dem 66° und 62° westlichen Längengrad. Aus morphologischer Sicht befindet sich das Untersuchungsgebiet im Übergang zwischen dem Subandin (Sierras Subandinas) und der südlichen Ostkordillere zum Chaco Vorland (Llanura Chaqueña). Im Untersuchungsgebiet zeichnet sich ein Wechsel in den tektonischen Strukturen ab, welcher als Interaktion zwischen der tertiären Andenorogenese und kretazischen Riftbildungen gedeutet wird. Dieser als Inversionstektonik bekannte tektonischer Stil hat nicht nur oberflächennahe Strukturen hervorgerufen, sondern auch tiefgreifende Massenveränderungen verursacht. Teile dieser Modifikationen sind in der Signatur des Schwerefeldes erhalten geblieben, und somit ist die Interpretation gravimetrischer Meßergebnisse zusammen mit den geologischen Randbedingungen eine Grundvorraussetzung zur Untersuchung dieser tektonischen Interaktion. Zum Verständnis dieser Strukturen war es notwendig, sowohl den Teil des Beckens zu untersuchen, welcher nicht von der andinen Orogenese betroffen ist, als auch jenen der direkt in die letztere miteinbezogen wurde. Aus gravimetrischer Sicht ist die Bougueranomalie des Gebietes stark vom Effekt der Andenwurzel geprägt. Jedoch deuten einige Abweichungen auf die Existenz lokalerer Störkörper hin, die Ziel der Modellierung waren. Ein solcher Störkörper wurde am südöstlichen Rand des kretazischen Rifts identifiziert. Die Modellierung wurde einerseits zweidimensional durchgeführt um einen Überblick über das Gebiet zu bekommen. Eine regionale 3D Modellierung führte dann zu einer präziseren Interpretation des Gebietes. Insbesondere wurde dabei der Effekt überschobener Riftschollen am Ostrand des Beckens untersucht. Diese Überschiebungen drücken sich im gravimetrischen Restfeld als deutliche positive Anomalie aus. Allerdings kann diese Anomalie nicht direkt mit einem Astenosphärenanstieg, welcher durch Riftbildung entstanden sein könnte, in Einklang gebracht werden - wie von einigen Autoren vermutet wurde. Eine weitere modellierte Struktur bildete die Vortiefe, welche durch die Auflast der andinen Überschiebung enstanden ist. Die dadurch hervorgerufenen negativen Anomalien bilden einen deutlichen Kontrast zu der beschriebenen positiven Anomalie im Vorland, der sich auch im Restfeld als starker Gradient äußert. Die 2D Modellierung erbrachte folgende Ergebnisse: im anorogenen Breich des Untersuchungsgebietes wurde die Existenz einer deutliche Asymmetrie des Beckens bestätigt, mit einer nach Südosten geneigten Riftabscherungsfläche. Die Orogenese hinterließ deutliche Spuren in der Reaktivierung der Abscherungen wobei entlang der südostvergenten Störungen tieferes Krustenmaterial emporgeschoben wurde. Mit einer größeren Dichte wird dieser Vorgang als Ursache der positiven Anomalie intepretiert. Westvergente Störungen scheinen nur oberflächennahe Bereiche miteinbezogen haben. Im regionalen 3D Modell wurde ein Ansteigen der Unterkruste unterhalb des Beckens angenommen. Die asymmetrische Anordnung dieses Anstiegs deutet eher auf einen kompressive tektonischen Effekt hin als auf eine residuale Krustenverdünnung. Zusammenfassend kann gesagt werden, daß sich in diesem Breich im Schwerefeld die Effekte des Andengradienten mit denen der überschobenen Basement-Tektonik und der Vorlandtief kombinieren und als solche fur einen starken lokalen Gradienten am Rande des Effekts der Andenwurzel verantwortlich sind.
    Beschreibung: In the present study, the structure of the crust beneath the eastern Andean foreland is analyzed. The area comprises part of northwest Argentina, between 22° and 25° S and 66° and 62° W. In terms of morphotectonics, the area studied covers the transition between the Sierras Subandinas (Subandean Ranges) and the southern part of the Cordillera Oriental (Eastern Cordillera) to the Chaco plains (Llanura Chaqueña). In the area, a pervasive change controls the tectonic features, which is interpreted as a consequence of the interaction between the Andean orogeny and preexistent Cretaceous rifting. This inversion tectonics did not only result in a particular suite of near to surface structures but also modified deeply the mass distribution within the crust. This changes in mass distributions and hence density contrasts is evidenced by the gravity field. As such, a careful analysis of gravity data together with the geological boundary conditions are the basis for an analysis of this tectonic interaction. Understanding these structures implied to analyse not only the part of the rift involved in the Andean compressive orogenesis but also that part where original extensional features are still preserved. From a gravimetrical point of view, the Bouguer-anomaly of the area shows a strong overprint related with the Andean root. Some smaller changes in the field however indicate the existence of local sources, which where the target of the modelling. Such a change had been indentified at the southeastern edge of the Cretaceous rift. Modelling was performed towfold. As such, a 2D model was made in order to get an insight into the regional aspects of the area. A more detailed 3D model led to a more precise interpretation of the area. In particular, the effect of the inverted rift tectonics at the eastern edge of the basin was studied. These upthrusts correlate with a readily identifiable positive anomaly within the residual field. The anomaly neverthless cannot be directly related with an astenospheric uprise, preserved since the rifting stage, as suggested by some authors. In addition, the foredeep related with the tectonic load of the Andean overthurst, was modelled. The negative anomalies generated during this process, show a strong contrast in comparison with the positive anomaly described above, depicted also by a prominent gradient in the residual field. 2D modelling led to the following results. In the region, where Creataceous rifting structures were not overprinted by the Andean orogeny an obvious asymmetry of the basin was defined, being the master detachment dipping to the northeast. The orogeny left evidences of reactivation, where the structures of the southeastern edge were the pathways of the uplift if deeper crustal material with a higher density. This process may be responsible for a part of the positive anomaly mentioned. Structures located at the western and northwestern edge of the basin seem to have only involved nearer-to surface structures. The 3D model assumed a slight uprise of the lower crust beneath the basin. The asymmetry in goemetty seem to stand more for a tectonic effect than for a remanent thinned crust. As a summary, the gravity field in this area shows the combined effects of the regional Andean gradient with the more local effects of the basement tectonics (inverted rifting) and the overthrusted foredeep. Hence, at least these three factors seem to be responsible for the strong local gradient in a lateral position of the Andean root.
    Beschreibung: thesis
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:550 ; Geophysik
    Sprache: Englisch
    Materialart: doc-type:book
    Format: 136
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  • 8
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    Unbekannt
    Selbstverl. Fachbereich Geowissenschaften, FU Berlin, Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-04-17
    Beschreibung: Gerhard Hahn & Renate Hahn: Neue Beobachtungen an Plagiaulacoidea (Multituberculata) des Ober-Juras 1 . Zum Zahn-Wechsel bei Kielanodon. ... 1 ; Gerhard Hahn & Renate Hahn: Neue Beobachtungen an Plagiaulacoidea (Multituberculata) des Ober-Juras 2. Zum Bau des Unterkiefers und des Gebisses bei Meketibolodon und bei Guimarotodon. ... 9 ; Gerhard Hahn & Renate Hahn: Neue Beobachtungen an Plagiaulacoidea (Multituberculata) des Ober-Juras 3. Der Bau der Molaren bei den Paulchoffatiidae. ... 39 ; Gerhard Hahn & Renate Hahn: Neue Beobachtungen an Plagiaulacoidea (Multituberculata) des Ober-Juras 4. Ein Vertreter der Albion baataridae im Lusitanien Portugals. … 85 ; Bernard Krebs: Drescheratherium acutum gen. et sp. nov., ein neuer Eupanthotherier (Mammalia) aus dem Oberen Jura von Portugal. ... 91 ; Rolf Kohring: Neue Schildkröten-Eischalen aus dem Oberjura der Grube Guimarota (Portugal). ... 113 ; Thomas Martin: The premolars of Crusafontia cuencana (Dryolestidae, Mammalia) from the Early Cretaceous (Barremian) of Spain. ... 119 ; Spyridon M. Bellas, Karina Kussius, Julia K. Kommerell & Jürgen Kriwet: Integrated biostratigraphical approach of the Neogene Pigadia basin of Karpathos Island (Dodecanes Group, Greece) - Implications on the depositional palaeoenvironment based on calcareous nannofossils, ostracodes and facies development data with special references to Messinian fish assemblages. ... 129 ;
    Beschreibung: thesis
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:560 ; Paläontologie
    Sprache: Deutsch , Englisch
    Materialart: doc-type:book
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  • 9
    facet.materialart.
    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-04-17
    Beschreibung: REITNER, Joachim & KOHRING, Rolf: Prof. Dr. Gundolf ERNST zum 65. Geburtstag. Eine kritische Würdigung des Jubilars ... 5 ; VOIGT, Ehrhard & GORDON, Dennis P.: Ascancestor and Confusocella - two new genera of cheilostomate Bryozoa from the Upper Cretaceous with transitional frontal-shield morphologies ... 15 ; KENNEDY, William J. & KAPLAN, Ulrich: Pseudojacobites farmeryi (CRICK, 1905), ein seltener Ammonit des westfälischen und englischen Ober-Turon ... 25 ; SEIBERTZ, Ekbert & SPAETH, Christian: Die Kreide-Belemniten von Mexiko II. Belemniten des Turon Nord-Mexikos ... 45 ; WIESE, Frank & WILMSEN, Markus: Erstnachweis aus Europa von Litophragmatoceras incomptum (Ammonoidea, Kreide) aus dem Mittel-Cenoman von Liencres (Kantabrien, Nordspanien) ... 53 ; WIESE, Frank: Das mittelturone Romaniceras kallesi-Event im Raum Santander (Nordspanien): Lithologie, Stratigraphie, laterale Veränderung der Ammonitenassoziationen und Paläobiogeographie ... 61 ; KRÜGER, Fritz J.: Leere Oberkretazische Echiniden-Coronen als Habitat benthonischer Organismen ... 79 ; MEHL, Dorte & NIEBUHR, Birgit: Diversität und Wachstumsformen bei Coeloptychium (Hexactinellida, Lychniskosa) der Meiner Mulde (Untercampan, NW-Deutschland) und die Palökologie der Coeloptychidae ... 91 ; REHFELD, Ursula & OTTO, Armin: Distribution and preservation of siliceous sponges of the rhythmically bedded spongiolitic rocks in the Lower Campanian of northern Spain (Cantabria, Santander area): Response to autecology and sea level development ... 109 ; FECHNER, Glenn G.: Phytoplankton und Sporomorphen aus dem Cenoman-Basiskonglomerat von Bochum (Nordrheinwestfalen, Deutschland) ... 129 ; KEUPP, Helmut: Die kalkigen Dinoflagellaten-Zysten aus dem Ober-Alb der Bohrung Kirchrode 1/91 (zentrales Niedersächsisches Becken, NW-Deutschland) ... 155 ; VOIGT, Silke: Verbreitung humider und arider Klimate der nördlichen Hemisphäre während der Oberkreide ... 201 ; HORNA, Frank: Komplexer Nachweis einer Tufflage im Turon von Hoppenstedt ... 207 ; WRAY, David S. & WOOD, Christopher J.: Geochemical identification and correlation of tuff layers in Lower Saxony, Germany ... 215 ; MUTTERLOSE, Jörg & WIEDENROTH, Kurt: Die Bio- und Lithofazies der Unterkreide (Hauterive bis Apt) in NW-Deutschland ... 227 ; TRÖGER, Karl-Armin & VOIGT, Thomas: Event-und Sequenzstratigraphie in der Sächsischen Kreide... 255 ; SEIBERTZ, Ekbert: Towards the single-species boundary definition - a concept proposal with application to the Turonian-Coniacian stage boundary (Upper Cretaceous) ... 269 ; WOOD, Christopher J. & MORTIMORE, Rory N.: An anomalous Black Band succession (Cenomanian - Turonian boundary interval) at Melton Ross, Lincolnshire, eastern England and its international significance ... 277 ; KUTZ, Andreas: Kalk-Mergel-Rhythmite der Oberkreide (Campan und Maastricht) am Massiv von Oroz Betelu (N-Spanien, Provinz Navarra). Ein Exkursionsführer ... 289 ; WOLF, Ernst-Otto.: Sedimentologie, Paläogeographie und Faziesentwicklung der Allochthonite des Campan von Beckum/Zentrales Münsterland ... 305 ; KRIWET, Jürgen & GLOY, Uwe: Zwei mesopelagische Raubfische (Actinopterygii: Euteleostei) aus dem Unterturon der Kronsberg-Mulde bei Hannover / Misburg (NW-Deutschland) ... 335 ; RAUHUT, Oliver W.M.: Zur systematischen Stellung der afrikanischen Theropoden Carcharodontosaurus STROMER 1931 und Bahariasaurus STROMER 1934 ... 357 ; WERNER, Christa: Neue Funde von mesozoischen Wirbeltieren in Äthiopien... 377 ;
    Beschreibung: commemorativepublication
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:560 ; Paläobiologie
    Sprache: Deutsch , Englisch
    Materialart: doc-type:book
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  • 10
    facet.materialart.
    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-04-17
    Beschreibung: Contents ; List of Contributors ; Introduction ; I. General Problems of Sponge Biology. S. M. Efremova: Once more on the position among Metazoa - Gastrulation and germinal layers of sponges ; N. N. Marfenin: Sponges viewed in the light of up-to-date conception on coloniality ; A. V. Ereskovsky & G. P. Korotkova: The reasons of sponge sexual morphogenesis peculiarities II. Developmental Biology of Sponges. O. M. Ivanova-Kazas: Analysis of the sponges ontogeny at sexual reproduction ; R. P. Anakina: The cleavage specifity in embryos of the Barents Sea sponge Leucosolenia complicata Montagu (Calcispongiae, Calcaronea) ; L. V. Ivanova: New data about morphology and metamorphosis of the spongillid larvae (Porifera, Spongillidae). 1. Morphology of the free-swimming larvae ; L. V. Ivanova: New data about morphology and metamorphosis of the spongillid larvae (Porifera, Spongillidae). 2. The metamorphosis of the spongillid larvae ; L. V. Ivanova & V. V. Semenov: Feeding habits of the larvae of sponges ; N. A. Sizova & A. V. Ereskovsky: Ultrastructural peculiarities of the early embryogenesis in a White Sea sponge Halisarca dujardini (Demospongiae, Dendroceratida) ; III. Ecology of Sponges. R. P. Anakina & E. I. Slepian: Spiculas' malformations of freshwater sponges as indicators of water environment in St. Petersburg City ; A. S. Plotkin & A. V. Ereskovsky: Ecological aspects of asexual reproduction of the White Sea sponge Polymastia mammillaris (Demospongiae, Tetractinomorpha) in Kandalaksha Bay ; I. S. Smirnov & V. M. Koltun: Symbiosis of the antarctic sponge genus lophon (Porifera) and ophiuroid genus Ophiurolepis (Ophiuroidea, Echinodermata) ; IV. Palaeontology and Systematics. L. V. Bolshakova: Stromatoporoids - the fossil sponges ; E. V. Veinberg, 0. M. Khlystov, S. S. Vorobyova, E. G. Kornakova, 0. V. Levina, S. M. Efremova, & M. A. Grachev: Distribution of sponge spicules in sediments of the underwater Akademichesky ridge of Lake Baikal ; K. R. Tabachnik & C. Levi: Amphidiscophoran Hexasterophora (Part I & II) ;
    Beschreibung: conference
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:560 ; Porifera ; Paläobiologie
    Sprache: Englisch
    Materialart: doc-type:book
    Standort Signatur Erwartet Verfügbarkeit
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  • 11
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    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-04-17
    Beschreibung: Baron-Szabo, R.C. & Steuber, T.: Korallen und Rudisten aus dem Apt im tertiären Flysch des Pamass-Gebirges bei Delphi-Arachowa (Mittelgriechenland) … 3 ; Fechner, G.G.: Septarienton und Stettiner Sand als Fazieseinheiten im Rupelium der östl. Mark Brandenburg: Palynologisch-fazielle Untersuchungen bei Bad Freienwalde ... 77 ; Fischer, K.: Das Mammut (Mammuthus primigenius Blumenbach, 1799) von Klinge bei Cottbus in der Niederlausitz (Land Brandenburg) ... 121 ; Frydas, D. & Keupp, H.: Biostratigraphical results in Late Neogene deposits of NW Crete, Greece, based on calcareous nannofossils ... 169 ; Kohring, R.: Structure and Biomineralization of Eggshell of Elaphe guttata (Linnö 1766) (Serpentes: Colubridae) ... 191 ; Kriiger, F.J.: Parietale Modifikationen bei Echinocorys obliqua (Nilssohn 1828) (Echinoidea, Holasterida) und ihre Beziehungen zur Weichkörper-Organisation ... 201 ; May, A. & Becker, R.T.: Ein Korallen-Horizont im Unteren Bänderschiefer (höchstes Mitteldevon) von Hohenlimburg-Elsey im Nordsauerland (Rheinisches Schiefergebirge) ... 209 ; Mehl, D. & Reitner, J.: Observations on Astraeospongium meniscum (Roemer, 1848) from the Silurian of western Tennessee: Constructional morphology and palaeobiology of the Astraeospongiidae (Calcarea, Heteractinellidae) 243 ; Neumann, C.: The mode of life and paleobiogeography of the genus Douvillaster Lambert (Echinoidea: Spatangoida) as first recorded in the Lower Cretaceous (Albian) of Spain ... 257 ; Niebuhr, B.: Die Scaphiten (Ammonoidea, Ancyloceratina) des höheren Obercampan der Lehrter Westmulde östlich Hannover (N-Deutschland) ... 267 ; Rehfeld, U.: Der Ausgangschemismus fossiler peloidaler und aphanitischer Zemente - eine geochemische Analyse an jurassischen und kretazischen Karbonatgesteinen ... 289 ; Rehfeld, U.: Steuerungsfaktoren bei der Dissoziierung des Skelettes und der Zementation des Gewebes bei jurassischen und kretazischen Kieselschwämmen ... 303 ; Rehfeld, U.: Paläoredoxpotential während der Diagenese von jurassischen und kretazischen spongiolithischen Biokonstruktionen ... 321 ; Werner, C. & Bardet, N.: New record of elasmosaurs (Reptilia, Plesiosauria) in the Maastrichtian of the Western Desert of Egypt ... 335 ; Wiese, F.: Preliminary Data on the Turanian Ammonite Biostratigraphy of the Liencres Area (Province Cantabria, Northern Spain) ... 343 ; Wilmsen, M.: Flecken-Riffe in den Kalken der „Formaciön de Altamira“ (Cenoman, Cobreces/Tofianes-Gebiet, Prov. Kantabrien, Nord-Spanien): Stratigraphische Position, fazielle Rahmenbedingungen und Sequenzstratigraphie ... 353 ; Rauhut, O.W.M.: Bibliographie 1995, Institut für Paläontologie, Freie Universität Berlin ... 375 ;
    Beschreibung: research
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:560 ; Paläobiologie ; Paläontologie
    Sprache: Deutsch , Englisch
    Materialart: doc-type:book
    Standort Signatur Erwartet Verfügbarkeit
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  • 12
    facet.materialart.
    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-04-17
    Beschreibung: SCHUDACK, Michael E.: Neue mikropaläontologische Beiträge (Ostracoda, Charophyta) zum Morrison-Ökosystem (Oberjura des Western Interior, USA) ... 389 ; BARTHOLDY, Jan, BELLAS, Spyridon M., MERTMANN, Dorothee, MACHANIEC, Elsbieta & MANUTSOGLU, Emmanuil: Fazies- Entwicklung und Biostratigraphie einer Sequenz eozäner Sedimente im Steinbruch Pod Capkami, Tatra-Gebirge, Polen ... 409 ; SCHULZ, Eberhard: Palynologische Untersuchungen des marinen Mittelrhäts im Creuzburger Graben bei Eisenach (W-Thüringen) ... 427 ; KRUTZSCH, Wilfried: Verbreitung der Trockenzonen im Kainophytikum - Eine Skizze ... 439 ; KOHRING, Rolf & SCHLÜTER, Thomas: Erhaltungsmechanismen känozoischer Insekten in fossilen Harzen und Sedimenten ... 457 ; ZILS, Wolfgang, WERNER, Christa, MORITZ, Andrea & SAANANE, Charles: Orientierende Tendaguru-Expedition 1994 ... 483 ; KIENEL, Ulrike, REHFELD, Ursula & BELLAS, Spyridon M.: The Miocene Blue Clay Formation of the Maltese Islands: Sequence-stratigraphic and palaeoceanographic implications based on calcareous nannofossil stratigraphy ... 533 ; SOUJON, Andr6, MANUTSOGLU, Emmanuil, REITNER, Joachim & JACOBSHAGEN, Volker: Lithistide Demospongiae aus der metamorphen Plattenkalk-Serie der Trypali Ori (Kreta/Griechenland) … 559 ; BARON-SZABO, Rosemarie C.: Taxonomy and Palaeoecology of Late Miocene corals of NW-Crete (Gramvoüssa, Roka- and Koukounaras- Fms.) ... 569 ; MANUTSOGLU, Emmanuil, MERTMANN, Dorothee, SoujON, Andre, DORNSIEPEN, Ulrich Friedrich & JACOBSHAGEN, Volker: Zur Nomenklatur der Metamorphite auf der Insel Kreta, Griechenland ... 579 ; FRYDAS, D., KONTOPOULOS, N., STAMATOPOULOS, L., GUERNET, C. & VOLTAGGIO, M.: Middle-Late Pleistocene sediments in the northwestern Peloponnesus, Greece. A combined study of biostratigraphical, radiochronological and sedimentological results ... 589 ; BECKER, R. Thomas: Taxonomy and Evolution of Late Famennian Tornocerataceae (Ammonoidea) ... 607 ; GRÖSCHKE, Manfred & KAPILIMA, Saldi: Ammoniten aus dem Septarienmergel (Kimmeridgium) des Mandawa-Mahokondo-Gebietes bei Nchia, Südtansania ... 645 ; KEUPP, Helmut & RIEDEL, Frank: Nautilus pompilius in captivity: a case study of abnormal shell growth ... 663 ; KRIWET, Jürgen: Beitrag zur Kenntnis der Fisch-Fauna des Ober-Jura (unteres Kimmeridge) der Kohlengrube Guimarota bei Leiria, Mittel-Portugal: 1 . Asteracanthus biformatus n. sp. (Chondrichthyes: Hybodontoidea) ... 683 ; MARTIN, Thomas: Incisor enamel microstructure and phylogenetic interrelationships of Pedetidae and Ctenodactyloidea (Rodentia) ... 693 ; ERESKOVSKY, Alexander V.: Materials to the Faunistic Study of the White and Barents seas sponges. 5. Quantitative Distribution ... 709 ; ERESKOVSKY, Alexander V.: Materials to the Faunistic Study of the White and Barents seas sponges. 6. The origin of the White and Barents seas sponge faunas ... 715 ; WÖRHEIDE, Gert: Bi- und multivariate Analyse borealer und mediterraner Populationen der Echinocardium cordatum - Gruppe (Echinoidea; Spatangoida) ... 731 ; HILBRECHT, Heinz: Computergestützte Methoden in der Morphometrie ... 765 ; CLAUSING, Andreas: Some critical notes on qualitative versus quantitative analysis in terrestrial palaeoecology ... 781 ; GLOY, Uwe: Bibliographie 1994, Institut für Paläontologie, Freie Universität Berlin ... 787 ;
    Beschreibung: commemorativepublication
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:560 ; Paläobiologie
    Sprache: Deutsch , Englisch
    Materialart: doc-type:book
    Standort Signatur Erwartet Verfügbarkeit
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  • 13
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    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-04-17
    Beschreibung: At the beginning of Late Jurassic both the Lochen (LA) and the Cracow areas (CA) were palaeotopographic highs in an epicontinental basin located at the stable northern margin of the Tethyan Ocean. The topographically high position of the LA was probably caused by intensive carbonate production which proceeded on a small sea-floor bulge located close to the boundary between middle and lower parts of the low-angle carbonate ramp. Lack of deep structural control of this rise caused prograding facial unification during the Oxfordian and Kimmeridgian and led to gradual disappearance of the LA individuality in relation to the neighbouring areas. The topographical high of the CA resulted from anomalously low subsidence rate in comparison to the adjacent areas which has lasted at least for the whole Oxfordian. Low subsidence directly gave rise to the development of a barrier (so-called Cracovian Platform) which separated the interior basin in the north from the deeper parts of the basin in the south. Topography of the Polish part of epicontinental basin along the Czestochowa-Cracow line corresponds to the low-gradient rimmed carbonate shelf which graded laterally (to the northeast and east) into the low-angle carbonate ramp. Stratigraphic subdivision of Upper Jurassic strata is very precise in the LA and rather poor in the CA due to scarcity of ammonites in the massive facies which predominates in the latter area. However, ammonite fauna from both areas belongs to the same German-Polish Submediterranean Subprovince which allows to attempt the correlation of lithologies and determination of factors which controlled deposition. Both the studied areas show distinct differences in the development of carbonate buildups. In the LA the main components of carbonate buildups during whole Oxfordian and the Early Kimmeridgian were siliceous sponges and microbolites whilst in the CA the flourishing growth of microbolites and gradual decline of siliceous sponges domination took place during the Late Oxfordian. The sediment was initially diversified into the two varieties: that formed by siliceous sponges and the microbolites incipient rigid framework, and the soft mud. In such carbonate buildups stromatactis cavities might have developed even in early diagenesis due to internal erosion of the soft mud. The principal reason of the internal erosion was turbulent water flow through the sediment. However, in generally low-energy sedimentary environments such flow could be triggered by submarine gravity flows or strong bottom currents. Pseudonodular textures encountered in carbonate buildups in both the areas resulted from shallow-burial diagenesis. During the burial diagenesis some parts of the sediment has been disintegrated under the pressure of overlying strata owing to the existing open spaces and different susceptibility to compaction showed by the incipient rigid framework and the soft sediment. Deposition in the LA was controlled mainly by sea-level pulses and ecological factors. In the CA principal control was provided by subsidence rate supported by synsedimentary tectonics, sea-level changes and ecological factors. All these controlling factors were variable in time which provoked changes in carbonate production rates from intensive, aggradational growth of the buildups to drowning of the carbonate ramp and rimmed shelf. The drowning of carbonate ramp on which the LA was located took place at the Oxfordian/Kimmeridgian break. It is documented by spectacular development of redeposited pelagites of skeletal-calciturbidites type with abundant fragments of Saccocoma sp. which have appeared for the first time in mass quantities in the Upper Jurassic. By analogy, it can be inferred that in the CA similar Saccocoma-calciturbidites prove the drowning of rimmed shelf related to the same trangressive event at the Oxfordian/Kimmeridgian break.
    Beschreibung: Zu Beginn des Ober-Jura waren das Lochengebiet (Schwäbische Alb) und der Raum Krakau (Südpolen) übereinstimmend Hochgebiete eines epikontinentalen Beckens auf dem passiven nördlichen Schelf der Tethys. Die topographische Hochposition des Lochengebietes war vermutlich durch eine hohe Karbonat-Produktion bedingt, welche auf einer schmalen submarinen Schwelle nahe dem Übergangsbereich zwischen unterem und mittlerem Abschnitt einer flach geneigten Karbonatrampe erfolgte. Während des Oxfordiums und Kimmeridgiums war die Lochenschwelle tektonisch inaktiv und ermöglichte einen zunehmenden Faziesausgleich mit den benachbarten Gebieten und führte dadurch zu einer successiven Aufgabe ihrer individuellen Entwicklung. Die Hochposition der Krakau-Region resultierte aus ihrer im Vergleich zur Umgebung ungewöhnlich geringen Subsidenzrate, welche mindestens während des gesamten Oxfordiums anhielt. Die geringe Subsidenz war unmittelbare Ursache für die Entwicklung einer Barriere (die sogenannte Krakau-Plattform), welche das seichtere Innenschelf-Becken im Norden von den tieferen Beckenanteilen im Süden trennte. Die Topographie des polnischen Anteils dieses epikontinentalen Beckens entsprach entlang der Czestochowa-Krakau-Linie einem „low-gradient rimmed carbonate shelf, der nach Nordosten und Osten lateral in eine flache Karbonatrampe überging. Die stratigraphische Gliederungsmöglichkeit der Ober-Jura-Schichfolge ist im Lochengebiet gut und feinauflösend, in der Krakau-Region dagegen, in der die Massenfazies vorherrscht, aufgrund der selteneren Ammonitenfunde zum Teil problematisch. Ungeachtet dessen, gehören die Ammoniten-Vergesellschaftungen beider Regionen derselben deutsch-polnischen, submediterranen Faunensubprovinz an und ermutigen zu einer Korrelation beider lithologischer Abfolgen und einer vergleichenden Abstraktion der Steuermechanismen für die Sedimentation. Beide Gebiete zeigen deutliche Unterschiede in der Entwicklung von karbonatischen Buildups. Im Lochen-Gebiet stellen während des Oxfordiums und Unter-Kimmeridgiums Kieselschwämme und Mikrobolithe die Hauptkomponenten der Riffstrukturen, während in der Krakau-Region die Bedeutung der Mikrobolithe und Kieselschwämme während des Ober-Oxfordiums successive abnimmt. Ursprünglich erfolgte eine Differenzierung der Riffstrukturen in einen autochthonen Hartsubstrat-Anteil, in dem Kieselschwämme und Mikrobolithe eine rigides Gerüst stellten, und in schlammiges Weichsubstrat. Innerhalb der Riffkörper konnten sich wohl frühdiagenetisch durch die interne Erosion der Schlamm-Anteile Stromatactis-Gefüge bilden. Grundsätzlich kann eine solche interne Erosion auf turbulente Porenwasserströme zurückgeführt werden. In den vorliegenden sedimentären Stillwasser-Milieus könnte ein solcher Porenwasserstrom durch submarine Schuttströme oder starke Bodenströmungen ausgelöst worden sein. Pseudonodulare Strukturen, wie sie in den Buildups beider Untersuchungsgebiete angetroffen wurden, werden durch eine flache Versenkungsdiagenese erklärt. Während dieser Vorgänge wurden unter dem Druck der Sedimentauflast aufgrund des vorhandenen, offenen Porenraumes und der unterschiedlichen Kompaktion von primär zementierten Riffkalken und des mergeligen Weichsubstrates Karbonatanteile gelöst. Das Sedimentationsgeschehen wurde in der Lochen-Region vor allem durch Meeresspiegel-Schwankungen und ökologische Parameter beeinflußt. In der Krakau-Region konnte als hauptsächlicher Kontrollfaktor die Subsidenzrate erkannt werden, in deren Gefolge synsedimentäre Tektonik, Änderungen von Meeresspiegel und der ökologischen Faktoren einhergingen. Veränderungen dieser Steuerfaktoren in der Zeit beeinflußten jeweils die Rate der Karbonatproduktion von intensiv (Aggradation der Buildups) bis zum Ertrinken der Karbonatrampe bzw. des Schelfrandes. Das Abtauchen der Karbonatrampe setzte in der Lochen-Region an der Oxfordium-Kimmeridgium-Wende ein. Es wird durch eine auffällige sedimentäre Entwicklung dokumentiert: Resedimentation pelagischer Kalke (skeletal calciturbidites), die häufig Saccocoma-Reste enthalten. Erste Massenvorkommen von Saccocoma treten in der Erdgeschichte im Oberjura auf. Ähnliche Saccoco/na-Kalkturbidite an der Oxfordium-Kimmeridgium-Grenze markieren in der Krakau-Region das Abtauchen des „rimmed shelf. Sie können auf dasselbe transgressive Ereignis zurückgeführt werden.
    Beschreibung: thesis
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:560 ; ddc:554 ; Paläobiologie
    Sprache: Englisch
    Materialart: doc-type:book
    Format: 116
    Standort Signatur Erwartet Verfügbarkeit
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  • 14
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    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, FU Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-04-17
    Beschreibung: The present study considered calcareous nannofossils from material represented by outcrops of Flysch successions of the External Hellenides belt in the area of the Ionian Zone (I.Z.), northwestern Greece. The studied outcrops are located in Epirus mainland and the Ionian island Korfu. Three subdivisions have been traditionally in literature distinguished in the I.Z., the Internal, Middle and External (moving from east to the west), each of which was subsequently recognized in the Flysch deposits as well. Aim of the study was, a refinement of the current biostratigraphic resolution of the area through detailed taxonomic descriptions and consequently, a reliably better correlation of the investigated sedimentary deposits with the help of calcareous nannofossils. The biostratigraphic data were also processed semiquentitatively (frequency variations and distributions), in order to accurately determine important biohorizons. For this purpose, the nannofossils were studied under the LM and the SEM, from ten closely sampled sections representing clastic sequences of all the three subdivisions of the I.Z. The investigated sections are situated at about 39° northern mid latitudes, a fact which resulted to mixed nannoflora assemblages of low and high latitudes character. The sections are namely: Elatos, Korfovouni (Internal I.Z. subdivision), Kato Despotiko, Strouga Goumenou and Ekklisia (Middle I.Z. subdivision), lower and upper Argyrotopos, National Road, Monos and Anacharavi (External I.Z. subdivision). They were found to range in age from the latest Eocene to the Early Miocene. Based on the systematic palaeontology, 107 species of calcareous nannofossils were observed and documented in the studied material. Among them, a new species Rhabdosphaera epirotica sp. nov. was described, and four recombinations were proposed. Moreover, two calcareous dinoflagellate cysts, Cervisiella saxea and Obliquipithonella sp. were reported for the first time from the I.Z. in Greece. Despite the mid latitude palaeogeographic position of the sections, all the conventional calcareous nannofossil zonal markers for the Oligocene and Early Miocene were recorded, although some in fewer abundances than in low latitudes. Improving the biostratigraphic reliability, a new zonational scheme was here developed and proposed for the Oligocene to Early Miocene interval. It was mainly established on use of redefined biohorizons and composed of five zones and five subzones following below: 1. Latest Eocene: Ericsonia formosa Partial-range Zone, 2. Oligocene: llselithina fusa / Ericsonia formosa Concurrent-range Zone, Ericsonia formosa-Reticulofenestra umbilicus/R. hillae Interval Zone, Cyclicargolithus abisectus Partial-range Zone, including the subzones: Rhabdosphaera spp. Interval Subzone, and Sphenolithus predistentus Interval Subzone, Reticulofenestra scissura Interval Zone, including the Sphenolithus delphix Abundance Subzone, and 3. Earliest Miocene: Triquetrorhabdulus spp. Partial-range Subzone Sphenolithus conicus Interval Subzone. Based on a new biohorizon of the absolute First Occurrence (FO) of llselithina fusa, the Eocene/Oligocene (E/O) boundary was identified in the lower part of the Argyrotopos section. On the absence of disc-shaped discoasters, the I. fusa biohorizon represented a better approximation of the boundary, which was clearly correlated with the other studied sections of the three subdivisions of the I.Z. The Oligocene/Miocene (O/M) boundary was identified in the Monos section located in the Plataria syncline (External I.Z.), but Early Miocene strata were recorded in the Middle I.Z. as well. This boundary was placed at the Last Common Occurrence (LCO) biohorizon of the Reticulofenestra scissura. Moreover, six associate bioevents were reported near the O/M boundary, among them the highest occurrence of I. fusa, located above the boundary, in the Anacharavi section of Korfu island (western part of the External I.Z.). For the first time were evaluated reworked together with „autochton“ taxa of calcareous nannofossils in Greece. Maximum diversity values along each of the studied sections, have shown increased reworking and erosional processes in the Internal subdivision of the I.Z. than in the Middle and the External ones. This is interpreted to be connected with the higher tectonic instability along the Pindos thrust to the east, in relation to the central and western parts of the Ionian basin mainly during the Oligocene.
    Beschreibung: Die der vorliegenden Arbeit zugrundeliegenden kalkigen Nannofossilien stammen von Flyschabfolgen der Externen Helleniden (Ionische Zone) Nordwest-Griechenlands.So wurden in die Untersuchung Aufschlüsse des Festlandes in Epirus und der Ionischen Insel Korfu aus dem stratigraphischen Intervall vom obersten Eozän bis zum untersten Miozän einbezogen. Die Ionische Zone (I.Z.) wird traditionell von Osten nach Westen in die Interne, Mittlere und Externe Subzone unterteilt. Diese Einteilung läßt sich auch auf die Flyschablagerungen übertragen. Ziel der Arbeit ist eine Verfeinerung der bestehenden Biostratigraphie durch detaillierte taxonomische Beschreibungen, um damit eine bessere Korrelation der untersuchten Ablagerungen mit Hilfe der kalkigen Nannofossilien zu erreichen. Mit einer halbquantitativen Erfassung der biostratigraphischen Daten (Häufigkeitsvariation und -Verteilung) gelingt es darüberhinaus, einzelne Biohorizonte genauer zu definieren. Zu diesem Zwecke wurde das kalkige Nannoplankton von zehn eng-beprobten Profilen aus klastischen Abfolgen aller drei Subzonen der I. Z. unter dem Licht- und Elektronenmikroskop (REM) untersucht. Die Profile im einzelnen sind: Elatos und Korfovouni (Interne Subzone), Kato Despotiko, Strouga Goumenou und Ekklisia (Mittlere Subzone), Unter bzw. Ober Argyrotopos, National Road, Monos und Anacharavi (Externe Subzone). Zur Ablagerungszeit befanden sich die untersuchten Profile in einer nördlichen Paläobreite um 39°, was zu einer gemischten Nannoflora aus charakteristischen Vertretern niedriger und höherer Breiten führte. In dem untersuchten Material konnten insgesamt 107 Spezies von kalkigem Nannoplankton gefunden und dokumentiert werden. Die Art Rhabdosphaera epirotica nov. sp.wird neu beschrieben und vier Rekombinationen werden vorgeschlagen. Darüberhinaus konnten zwei kalkige Dinoflagellatenzysten Cervisiella saxea und Obliquipithonella sp. zum ersten Mal in der I.Z. nachgewiesen werden. Trotz der paläogeographischen Position der Profile in mittleren Paläobreitenbereich konnten alle konventionellen Zonenleitformen des kalkigen Nannoplanktons für das Oligozän und das Untermiozän gefunden werden, einige davon jedoch in geringerer Häufigkeit als in den niedrigeren Breiten. Durch die Verbesserung der biostratigraphischen Genauigkeit wird hier ein neues mediterranes Zonenschema für das Oligozän und das Untermiozän entwickelt, das im wesentlichen auf neu definierten Biohorizonten basiert. Es enthält fünf Zonen und fünf Subzonen: 1. Jüngstes Eozän: Ericsonia formosa Partial-range Zone, 2. Oligozän: llselithina fusa/Ericsonia formosa Concurrent-range Zone, Ericsonia formosa-Reticulofenestra umbilicus/R. hillae Interval Zone, Cyclicargolithus abisectus Partial-range Zone, gegliedert in den Subzonen: Rhabdosphaera spp. Interval Subzone, und Sphenolithus predistentus Interval Subzone, Reticulofenestra scissura Interval Zone, die eine Subzone enthält: Sphenolithus delphix Abundance Subzone, und 3. Ältestes Miozän: Triquetrorhabdulus spp. Partial-range Subzone Sphenolithus conicus Interval Subzone. Mit dem ersten Auftreten (FO) von llselithina fusa wird ein neuer Biohorizont definiert, mit dem die Grenze Eozän/Oligozän (E/O) in dem unteren Teil des Argyrotopos-Profils nachgewiesen wird. Trotz der Abwesenheit von scheibenförmigen Discoasteriden läßt sich nun diese Grenze mit dem I. fusa-Biohorizont besser fassen und kann eindeutig mit den Profilen in den beiden anderen Subzonen der I.Z. korreliert werden. Die Oligozän/Miozän-Grenze (O/M) konnte im Monos-Profil der Plataria-Synklinale (Externe I.Z.) charakterisiert werden. Untermiozän ließ sich aber auch in der Mittleren Subzone nachweisen. Die Grenze O/M ist durch das letzte Vorkommen (LCO) von Reticulofenestra scissura bestimmt. Sechs assoziierte Bioevents fallen in diesen Grenzbereich, darunter im Anacharavi-Profil der Insel Korfu (Westteil der Externen Subzone) das jüngste Vorkommen von I. fusa, unmittelbar über der Grenze O/M. Zum erstem Mal für Griechenland konnten aufgearbeitete Taxa von kalkigen Nannofossilien zusammen mit den autochthonen Taxa nachgewiesen werden. Ein Vergleich der maximalen Diversitätswerte in den untersuchten Profilen zeigt eine signifikant höhere Aufarbeitungsrate in der Internen Subzone gegenüber der Mittleren und Externen Subzonen. Dieser Umstand dürfte mit der höheren tektonischen Instabilität entlang der Pindos-Decken-Front im Osten des Arbeitsgebietes Zusammenhängen.
    Beschreibung: thesis
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:560 ; Tertiär ; Flysch ; Nannofossil ; Biostratigraphie ; Systematik ; Paläobiologie ; Paläontologie
    Sprache: Englisch
    Materialart: doc-type:book
    Format: 206
    Standort Signatur Erwartet Verfügbarkeit
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  • 15
    facet.materialart.12
    Chichester, [England] : Wiley
    Signatur: 9781444328479 (e-book)
    Materialart: 12
    Seiten: 1 Online-Ressource (XIII, 768 Seiten) , Illustrationen
    Ausgabe: Second edition
    ISBN: 9781444328479 (e-book) , 978-1-4443-2847-9
    Sprache: Englisch
    Anmerkung: Contents Contents Preface Acknowledgements Part 1: Making Sediment Introduction Clastic sediment as a chemical and physical breakdown product 1.1 Introduction: clastic sediments—'accidents' of weathering 1.2 Silicate minerals and chemical weathering 1.3 Solute flux: rates and mechanisms of silicate chemical weathering 1.4 Physical weathering 1.5 Soils as valves and filters for the natural landscape 1.6 Links between soil age, chemical weathering and weathered-rock removal 1.7 Provenance: siliciclastic sediment-sourcing Further reading 2 Carbonate, siliceous, iron-rich and evaporite sediments 2.1 Marine vs. freshwater chemical composition and fluxes 2.2 The calcium carbonate system in the oceans 2.3 Ooid carbonate grains 2.4 Carbonate grains from marine plants and animals 2.5 Carbonate muds, oozes and chalks 2.6 Other carbonate grains of biological origins 2.7 Organic productivity, sea-level and atmospheric controls of biogenic CaCO3 deposition rates 2.8 CaCO3 dissolution in the deep ocean and the oceanic CaCO3 compensation mechanism 2.9 The carbonate system on land 2.10 Evaporite salts and their inorganic precipitation as sediment 2.11 Silica and pelagic plankton 2.12 Iron minerals and biomineralizers 2.13 Desert varnish 2.14 Phosphates 2.15 Primary microbial-induced sediments: algal mats and stromatolites Further reading 3 Sediment grain properties 3.1 General 3.2 Grain size 3.3 Grain-size distributions 3.4 Grain shape and form 3.5 Bulk properties of grain aggregates Further reading Part 2: Moving Fluid Introduction 4 Fluid basics 4.1 Material properties of fluids 4.2 Fluid kinematics 4.3 Fluid continuity with constant density 4.4 Fluid dynamics 4.5 Energy, mechanical work and power Further reading 5 Types of fluid motion 5.1 Osborne Reynolds and flow types 5.2 The distribution of velocity in viscous flows: the boundary layer 5.3 Turbulent flows 5.4 The structure of turbulent shear flows 5.5 Shear flow instabilities, flow separation and secondary currents 5.6 Subcritical and supercritical flows: the Froude number and hydraulic jumps 5.7 Stratified flow generally 5.8 Water waves 5.9 Tidal flow—long-period waves Further reading Part 3: Transporting Sediment Introduction 6 Sediment in fluid and fluid flow—general 6.1 Fall of grains through stationary fluids 6.2 Natural flows carrying particulate material are complex 6.3 Fluids as transporting machines 6.4 Initiation of grain motion 6.5 Paths of grain motion 6.6 Categories of transported sediment 6.7 Some contrasts between wind and water flows 6.8 Cohesive sediment transport and erosion 6.9 A warning: nonequilibrium effects dominate natural sediment transport systems 6.10 Steady state, deposition or erosion: the sediment continuity equation and competence vs. capacity Further reading 7 Bedforms and sedimentary structures in flows and under waves 7.1 Trinity of interaction: turbulent flow, sediment transport and bedform development 7.2 Water-flow bedforms 7.3 Bedform phase diagrams for water flows 7.4 Water flow erosional bedforms on cohesive beds 7.5 Water wave bedforms 7.6 Combined flows: wave-current ripples and hummocky cross-stratification 7.7 Bedforms and structures formed by atmospheric flows Further reading 8 Sediment gravity flows and their deposits 8.1 Introduction 8.2 Granular flows 8.3 Debris flows 8.4 Turbidity flows 8.5 Turbidite evidence for downslope transformation from turbidity to debris flows Further reading 9 Liquefaction, fluidization and sliding sediment deformation 9.1 Liquefaction 9.2 Sedimentary structures formed by and during liquefaction 9.3 Submarine landslides, growth faults and slumps 9.4 Desiccation and synaeresis shrinkage structures Further reading Part 4: Major External Controls on Sedimentation and Sedimentary Environments Introduction 10 Major external controls on sedimentation 10.1 Climate 10.2 Global climates: a summary 10.3 Sea-level changes 10.4 Tectonics 10.5 Sediment yield, denudation rate and the sedimentary record Further reading Part 5: Continental Sedimentary Environments Introduction 11 Rivers 11.1 Introduction 11.2 River networks, hydrographs,patterns and long profiles 11.3 Channel form 11.4 Channel sediment transport processes, bedforms and internal structures 11.5 The floodplain 11.6 Channel belts, alluvial ridges and avulsion 11.7 River channel changes, adjustable variables and equilibrium 11.8 Alluvial architecture: product of complex responses 11.9 Alluvial architecture: scale, controls and time Further reading 12 Subaerial Fans: Alluvial and Colluvial 12.1 Introduction 12.2 Controls on the size (area) and gradient of fans 12.3 Physical processes on alluvial fans 12.4 Debris-flow-dominated alluvial fans 12.5 Stream-flow-dominated alluvial fans 12.6 Recognition of ancient alluvial fans and talus cones Further reading 13 Aeolian Sediments in Low-Latitude Deserts 13.1 Introduction 13.2 Aeolian system state 13.3 Physical processes and erg formation 13.4 Erg margins and interbedform areas 13.5 Erg and draa evolution and sedimentary architecture 13.6 Erg construction, stasis and destruction: climate and sea-level controls 13.7 Ancient desert facies Further reading 14 Lakes 14.1 Introduction 14.2 Lake stratification 14.3 Clastic input by rivers and the effect of turbidity currents 14.4 Wind-forced physical processes 14.5 Temperate lake chemical processes and cycles 14.6 Saline lake chemical processes and cycles 14.7 Biological processes and cycles 14.8 Modern temperate lakes and their sedimentary facies 14.9 Lakes in the East African rifts 14.10 Lake Baikal 14.11 The succession of facies as lakes evolve 14.12 Ancient lake facies Further reading 15 Ice 15.1 Introduction 15.2 Physical processes of ice flow 15.3 Glacier flow, basal lubrication and surges 15.4 Sediment transport, erosion and deposition by flowing ice 15.5 Glacigenic sediment: nomenclature and classification 15.6 Quaternary and modern glacial environments and facies 15.7 Ice-produced glacigenic erosion and depositional facies on land and in the periglacial realm 15.8 Glaciofluvial processes on land at and within the ice-front 15.9 Glacimarine environments 15.10 Glacilacustrine environments 15.11 Glacial facies in the pre-Quaternary geological record: case of Cenozoic Antarctica Further reading Part 6: Marine Sedimentary Environments Introduction 16. Estuaries 16.1 Introduction 16.2 Estuarine dynamics 16.3 Modern estuarine morphology and sedimentary environments 16.4 Estuaries and sequence stratigraphy Further reading 17. River and Fan Deltas 17.1 Introduction to river deltas 17.2 Basic physical processes and sedimentation at the river delta front 17.3 Mass movements and slope failure on the subaqueous delta 17.4 Organic deposition in river deltas 17.5 River delta case histories 17.6 River deltas and sea-level change 17.7 Ancient river delta deposits 17.8 Fan deltas Further reading 18. Linear Siliciclastic Shorelines 18.1 Introduction 18.2 Beach processes and sedimentation 18.3 Barrier-inlet-spit systems and their deposits 18.4 Tidal flats, salt marsh and chenier ridges 18.5 Ancient clastic shoreline facies Further reading 19 Siliciclastic Shelves 19.1 Introduction: shelf sinks and lowstand bypass 19.2 Shelf water dynamics 19.3 Holocene highstand shelf sediments: general 19.4 Tide-dominated, low river input, highstand shelves 19.5 Tide-dominated, high river input, highstand shelves 19.6 Weather-dominated highstand shelves Further reading 20 Calcium-carbonate-evaporite Shorelines, Shelves and Basins 20.1 Introduction: calcium carbonate 'nurseries' and their consequences 20.2 Arid carbonate tidal flats, lagoons and evaporite sabkhas 20.3 Humid carbonate tidal flats and marshes 20.4 Lagoons and bays 20.5 Tidal delta and margin-spillover carbonate tidal sands 20.6 Open-shelf carbonate ramps 20.7 Platform margin reefs and carbonate build-ups 20.8 Platform margin slopes and basins 20.9 Carbonate sediments, cycles and sea-level change 20.10 Displacement and destruction of carbonate environments: silicicl
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  • 16
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    Unbekannt
    In:  ACM Transactions on Database Systems
    Publikationsdatum: 2024-02-21
    Beschreibung: Automatic recycling of intermediate results to improve both query response time and throughput is a grand challenge for state-of-the-art databases. Tuples are loaded and streamed through a tuple-at-a-time processing pipeline, avoiding materialization of intermediates as much as possible. This limits the opportunities for reuse of overlapping computations to DBA-defined materialized views and function/result cache tuning. In contrast, the operator-at-a-time execution paradigm produces fully materialized results in each step of the query plan. To avoid resource contention, these intermediates are evicted as soon as possible. In this article we study an architecture that harvests the byproducts of the operator-at-a-time paradigm in a column-store system using a lightweight mechanism, the recycler. The key challenge then becomes the selection of the policies to admit intermediates to the resource pool, to determine their retention period, and devise the eviction strategy when facing resource limitations. The proposed recycling architecture has been implemented in an open-source system. An experimental analysis against the TPC-H ad-hoc decision support benchmark and a complex, real-world application (SkyServer) demonstrates its effectiveness in terms of self-organizing behavior and its significant performance gains. The results indicate the potentials of recycling intermediates and charts a route for further development of database kernels.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
    Standort Signatur Erwartet Verfügbarkeit
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  • 17
    facet.materialart.
    Unbekannt
    In:  Proceedings
    Publikationsdatum: 2024-02-21
    Beschreibung: As network infrastructures with 10 Gb/s bandwidth and beyond have become pervasive and as cost advantages of large commodity-machine clusters continue to increase, research and industry strive to exploit the available processing performance for large-scale database processing tasks. In this work we look at the use of high-speed networks for distributed join processing. We propose Data Roundabout as alight weight transport layer that uses Remote Direct Memory Access (RDMA) to gain access to the throughput opportunities in modern networks. The essence of Data Roundabout is a ring shaped network in which each host stores one portion of a large database instance. We leverage the available bandwidth to (continuously) pump data through the high-speed network. Based on Data Roundabout, we demonstrate cyclo-join, which exploits the cycling flow of data to execute distributed joins. The study uses different join algorithms (hash join and sort-merge join) to expose the pitfalls and the advantages of each algorithm in the data cycling arena. The experiments show the potential of a large distributed main-memory cache glued together with RDMA into a novel distributed database architecture.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/conferenceObject
    Standort Signatur Erwartet Verfügbarkeit
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  • 18
    facet.materialart.
    Unbekannt
    In:  ACM Transactions on Database Systems
    Publikationsdatum: 2024-02-21
    Beschreibung: A grand challenge of distributed query processing is to devise a self-organizing architecture which exploits all hardware resources optimally to manage the database hot set, minimize query response time, and maximize throughput without single point global coordination. The Data Cyclotron architecture [Goncalves and Kersten 2010] addresses this challenge using turbulent data movement through a storage ring built from distributed main memory and capitalizing on the functionality offered by modern remote-DMA network facilities. Queries assigned to individual nodes interact with the storage ring by picking up data fragments, which are continuously flowing around, that is, the hot set. The storage ring is steered by the Level Of Interest (LOI) attached to each data fragment, which represents the cumulative query interest as it passes around the ring multiple times. A fragment with LOI below a given threshold, inversely proportional to the ring load, is pulled out to free up resources. This threshold is dynamically adjusted in a fully distributed manner based on ring characteristics and locally observed query behavior. It optimizes resource utilization by keeping the average data access latency low. The approach is illustrated using an extensive and validated simulation study. The results underpin the fragment hot set management robustness in turbulent workload scenarios. A fully functional prototype of the proposed architecture has been implemented using modest extensions to MonetDB and runs within a multirack cluster equipped with Infiniband. Extensive experimentation using both microbenchmarks and high-volume workloads based on TPC-H demonstrates its feasibility. The Data Cyclotron architecture and experiments open a new vista for modern distributed database architectures with a plethora of new research challenges.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
    Standort Signatur Erwartet Verfügbarkeit
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  • 19
    facet.materialart.
    Unbekannt
    Selbstverlag Fachbereich Geowissenschaften, Freie Universität Berlin
    In:  Herausgeberexemplar
    Publikationsdatum: 2024-02-14
    Beschreibung: Die Geologie des Arbeitsgebietes Derudeb ist mit Methoden der Fernerkundung und Geo- Informationssystemen auf der Grundlage einer begrenzten Datenbasis untersucht worden. Als Ergebnis wurde ein geologisches Kartenblatt im Maßstab 1 : 250 000 erstellt. Das Gebiet der südlichen Red Sea Hills, im NE des Sudan gelegen, bildet den nubischen Teil des Arabisch-Nubischen Schildes.
    Beschreibung: thesis
    Beschreibung: DFG, SUB Göttingen
    Schlagwort(e): ddc:556 ; ddc:550.285 ; Sudan ; GIS ; Spektralmessungen ; spectral analysis
    Sprache: Englisch
    Materialart: doc-type:book
    Format: 122
    Standort Signatur Erwartet Verfügbarkeit
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  • 20
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge, Mass. : Belknap Press
    Signatur: RIFS 23.95556
    Materialart: Monographie ausleihbar
    Seiten: XVI, 622 Seiten , Ill.
    Ausgabe: 1st paperback ed.
    ISBN: 9780674292130
    Originaltitel: Chute du ciel
    Sprache: Englisch
    Zweigbibliothek: RIFS Bibliothek
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  • 21
    Monographie ausleihbar
    Monographie ausleihbar
    London : Routledge
    Signatur: RIFS 23.95609
    Materialart: Monographie ausleihbar
    Seiten: xii, 163 Seiten , Illustrationen, Diagramme
    ISBN: 041556722X , 9780415567237 , 9780415567220
    Sprache: Englisch
    Zweigbibliothek: RIFS Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 22
    Monographie ausleihbar
    Monographie ausleihbar
    Edinburgh : Edinburgh University Press
    Signatur: RIFS 23.95612
    Materialart: Monographie ausleihbar
    Seiten: vii, 256 Seiten
    Ausgabe: Second edition
    ISBN: 9780748691135
    Sprache: Englisch
    Zweigbibliothek: RIFS Bibliothek
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  • 23
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge, Mass. [u.a.] : MIT Press
    Signatur: RIFS 23.95560
    Materialart: Monographie ausleihbar
    Seiten: XIX, 279 S. , Ill. , 23 cm
    ISBN: 0262515857 , 0262015447 , 9780262515856 , 9780262015448
    Sprache: Englisch
    Zweigbibliothek: RIFS Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 24
    Monographie ausleihbar
    Monographie ausleihbar
    London [u.a.] : Routledge
    Signatur: RIFS 23.95542
    Materialart: Monographie ausleihbar
    Seiten: XIV, 203 S. , graph. Darst., Kt. , 24 cm
    Ausgabe: 1. publ.
    ISBN: 0415477506 , 0415477514 , 9780415477505 , 9780415477512
    Sprache: Englisch
    Zweigbibliothek: RIFS Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 25
    Signatur: RIFS 23.95498
    Beschreibung / Inhaltsverzeichnis: The essays in this volume address the displacement of natural and cultural heritage caused by disasters, whether they be dramatic natural impacts or terrible events unleashed by humankind, including holocaust and genocide. Disasters can be natural or human-made, rapid or slow, great or small, yet the impact is effectively the same; nature, people and cultural heritage are displaced or lost. Yet while heritage and place are at risk from disasters, in time,sites of suffering are sometimes reframed as sites of memory; through this different lens these "difficult" places become heritage sites that attract tourists. Ranging widely chronologically and geographically, the contributors explore the impact of disasters, trauma and suffering on heritage and sense of place, in both theory and practice.
    Materialart: Monographie ausleihbar
    Seiten: xx, 337 pages , Illustrationen
    Ausgabe: Paperback ed.
    ISBN: 9781843839637 , 9781783274307
    Serie: Heritage matters
    Sprache: Englisch
    Zweigbibliothek: RIFS Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 26
    Signatur: 9783034803960 (e-book)
    Materialart: 12
    Seiten: 1 Online-Ressource (XI, 220 Seiten) , Illustrationen
    ISBN: 9783034803960 (e-book) , 978-3-0348-0396-0
    Sprache: Englisch
    Anmerkung: Contents 1 High elevation treelines 1.1 The task 1.2 Previous works 2 Definitions and conventions 2.1 The life form ‘tree’ 2.2 Lines and transitions 2.3 Limitation, stress and disturbance 2.4 Altitude-related and other environmental drivers 2.5 Treeline nomenclature 3 Treeline patterns 3.1 Treeline taxa 3.2 The summit syndrome and other treeline depressions 3.3 Mass elevation effect 3.4 Treeline elevation 3.5 Time matters 3.6 Forest structure near treeline 4 Treeline climate 4.1 Specific aspects of treeline climatology 4.2 Criteria to define temperature regimes at treeline 4.3 Treeline temperatures in different bioclimatic regions 4.3.1 Subarctic and boreal zone (45–68° N) 4.3.2 Cool temperate zone (45–47° N, 44° S) 4.3.3 Warm temperate zone (28–42° N, 36° S) 4.3.4 Subtropical zone (19° S, 19° N) 4.3.5 Equatorial tropics (6° N to 3° S) 4.3.6 Mediterranean ‘treelines’ (38–42° N) 4.3.7 The Nothofagus and Metrosideros case 4.3.8 Treeline temperatures across bioclimatic zones 4.4 Seedbed and branch temperatures 4.5 Whole forest temperatures 5 Global mountain statistics based on treeline elevation 5.1 Mountain geostatistics 5.2 Elevational belts 5.3 Global treeline ecotones 6 Structure and stature of treeline trees 6.1 Foliage properties 6.2 Wood properties 6.3 Bark properties 6.4 Root traits 6.5 Tree stature 6.6 Dry matter allocation in treeline trees 7 Growth and development 7.1 Tree growth near the treeline 7.1.1 In situ growth of seedlings 7.1.2 In situ growth of saplings and adult trees 7.2 Xylogenesis at the treeline 7.2.1 In situ cambial activity 7.2.2 Apical growth dynamics 7.3 Root growth 7.4 Phenology at the treeline 8 Evolutionary adjustments to life at the treeline 8.1 Phylogenetic selection 8.2 Genotypic responses of growth and development 8.3 Genotypic responses of physiological traits 9 Reproduction, early life stages and tree demography 9.1 Amount and quality of seeds at high elevation 9.2 Germination, seedling and sapling stage 9.3 Tree demography at the treeline 10 Freezing and other forms of stress 10.1 Stress at the treeline in a fitness context 10.2 Mechanisms and principles of freezing resistance 10.3 Freezing resistance in treeline trees 10.4 Other forms of stress at the treeline 10.4.1 Freeze-thaw cycles and hydraulic failure 10.4.2 Winter desiccation 11 Water, nutrient and carbon relations 11.1 Tree water relations during the growing season 11.2 Nutrient relations 11.3 Carbon relations 12 Treeline formation - currently, in the past and in the future 12.1 Causes of current treelines 12.2 Treelines in the recent past 12.3 Treelines in the distant past (Holocene) 12.4 Treelines in the future References Subject Index Taxonomic Index
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  • 27
    Signatur: 9783662031674 (e-book)
    Materialart: 12
    Seiten: 1 Online-Ressource (336 Seiten) , Illustrationen
    ISBN: 9783662031674 , 978-3-662-03167-4
    Sprache: Englisch
    Anmerkung: Contents Foreword Preface Contributors I Introduction 1 The Development of Climate Research / by ANTONIO NAVARRA 1.1 The Nature of Climate Studies 1.1.1 The Big Storm Controversy 1.1.2 The Great Planetary Oscillations 1.2 The Components of Climate Research 1.2.1 Dynamical Theory 1.2.2 Numerical Experimentation 1.2.3 Statistical Analysis 2 Misuses of Statistical Analysis in Climate Research / by HANS VON STORCH 2.1 Prologue 2.2 Mandatory Testing and the Mexican Hat 2.3 Neglecting Serial Correlation 2.4 Misleading Names: The Case of the Decorrelation Time 2.5 Use of Advanced Techniques 2.6 Epilogue II Analyzing The Observed Climate 3 Climate Spectra and Stochastic Climate Models / by CLAUDE FRANKIGNOUL 3.1 Introduction 3.2 Spectral Characteristics of Atmospheric Variables 3.3 Stochastic Climate Model 3.4 Sea Surface Temperature Anomalies 3.5 Variability of Other Surface Variables 3.6 Variability in the Ocean Interior 3.7 Long Term Climate Changes 4 The Instrumental Data Record: Its Accuracy and Use in Attempts to Identify the "CO2 Signal" / by PHIL JONES 4.1 Introduction 4.2 Homogeneity 4.2.1 Changes in Instrumentation, Exposure and Measuring Techniques 4.2.2 Changes in Station Locations 4.2.3 Changes in Observation Time and the Methods Used to Calculate Monthly Averages 4.2.4 Changes in the Station Environment 4.2.5 Precipitation and Pressure Homogeneity 4.2.6 Data Homogenization Techniques 4.3 Surface Climate Analysis 4.3.1 Temperature 4.3.2 Precipitation 4.3.3 Pressure 4.4 The Greenhouse Detection Problem 4.4.1 Definition of Detection Vector and Data Used 4.4.2 Spatial Correlation Methods 4.5 Conclusions 5 Interpreting High-Resolution Proxy Climate Data - The Example of Dendr о climatology / by KEITH R. BRIFFA 5.1 Introduction 5.2 Background 5.3 Site Selection and Dating 5.4 Chronology Confidence 5.4.1 Chronology Signal 5.4.2 Expressed Population Signal 5.4.3 Subsample Signal Strength 5.4.4 Wider Relevance of Chronology Signal 5.5 "Standardization" and Its Implications for Judging Theoretical Signal 5.5.1 Theoretical Chronology Signal 5.5.2 Standardization of "Raw" Data Measurements 5.5.3 General Relevance of the "Standardization" Problem 5.6 Quantifying Climate Signals in Chronologies 5.6.1 Calibration of Theoretical Signal 5.6.2 Verification of Calibrated Relationships 5.7 Discussion 5.8 Conclusions 6 Analysing the Boreal Summer Relationship Between World wide Sea-Surface Temperature and Atmospheric Variability / by M. NEIL WARD 6.1 Introduction 6.2 Physical Basis for Sea-Surface Temperature Forcing of the Atmosphere 6.2.1 Tropics 6.2.2 Extratropics 6.3 Characteristic Patterns of Global Sea Surface Temperature: EOFs and Rotated EOFs 6.3.1 Introduction 6.3.2 SST Data 6.3.3 EOF method 6.3.4 EOFs p^→1 - p^→3 6.3.5 Rotation of EOFs 6.4 Characteristic Features in the Marine Atmosphere Associated with the SST Patterns p^→2, p ^→3 and p^→2R in JAS 6.4.1 Data and Methods 6.4.2 Patterns in the Marine Atmosphere Associated with EOF p^→2 6.4.3 Patterns in the Marine Atmosphere Associated with EOF p^→3 6.4.4 Patterns in the Marine Atmosphere Associated with Rotated EOF p^→2R 6.5 JAS Sahel Rainfall Links with Sea-Surface Temperature and Marine Atmosphere 6.5.1 Introduction 6.5.2 Rainfall in the Sahel of Africa 6.5.3 High Frequency Sahel Rainfall Variations 6.5.4 Low Frequency Sahel Rainfall Variations 6.6 Conclusions III Simulating and Predicting Climate 7 The Simulation of Weather Types in GCMs : A Regional Approach to Control-Run Validation / by KEITH R. BRIFFA 7.1 Introduction 7.2 The Lamb Catalogue 7.3 An "Objective" Lamb Classification 7.4 Details of the Selected GCM Experiments 7.5 Comparing Observed and GCM Climates 7.5.1 Lamb Types 7.5.2 Temperature and Precipitation 7.5.3 Relationships Between Circulation Frequencies and Temperature and Precipitation 7.5.4 Weather-Type Spell Lengths and Storm Frequencies 7.6 Conclusions 7.6.1 Specific Conclusions 7.6.2 General Conclusions 8 Statistical Analysis of GCM Output / by CLAUDE FRANKIGNOUL 8.1 Introduction 8.2 Univariate Analysis 8.2.1 The i-Test on the Mean of a Normal Variable 8.2.2 Tests for Autocorrelated Variables 8.2.3 Field Significance 8.2.4 Example: GCM Response to a Sea Surface Temperature Anomaly 8.3 Multivariate Analysis 8.3.1 Test on Means of Multidimensional Normal Variables 8.3.2 Application to Response Studies 8.3.3 Application to Model Testing and Intercomparison 9 Field Intercomparison / by ROBERT E . LIVEZEY 9.1 Introduction 9.2 Motivation for Permutation and Monte Carlo Testing 9.2.1 Local vs. Field Significance 9.2.2 Test Example 9.3 Permutation Procedures 9.3.1 Test Environment 9.3.2 Permutation (PP) and Bootstrap (BP) Procedures 9.3.3 Properties 9.3.4 Interdependence Among Field Variables 9.4 Serial Correlation 9.4.1 Local Probability Matching 9.4.2 Times Series and Monte Carlo Methods 9.4.3 Independent Samples 9.4.4 Conservatism 9.5 Concluding Remarks 10 The Evaluation of Forecasts / by ROBERT E. LIVEZEY 10.1 Introduction 10.2 Considerations for Objective Verification 10.2.1 Quantification 10.2.2 Authentication 10.2.3 Description of Probability Distributions 10.2.4 Comparison of Forecasts 10.3 Measures and Relationships: Categorical Forecasts 10.3.1 Contingency and Definitions 10.3.2 Some Scores Based on the Contingency Table 10.4 Measures and Relationships: Continuous Forecasts 10.4.1 Mean Squared Error and Correlation 10.4.2 Pattern Verification (the Murphy-Epstein Decomposition) 10.5 Hindcasts and Cross-Validation 10.5.1 Cross-Validation Procedure 10.5.2 Key Constraints in Cross-Validation 11 Stochastic Modeling of Precipitation with Applications to Climate Model Downscaling / by DENNIS LETTENMAIER 11.1 Introduction 11.2 Probabilistic Characteristics of Precipitation 11.3 Stochastic Models of Precipitation 11.3.1 Background 11.3.2 Applications to Global Change 11.4 Stochastic Precipitation Models with External Forcing 11.4.1 Weather Classification Schemes 11.4.2 Conditional Stochastic Precipitation Models 11.5 Applications to Alternative Climate Simulation 11.6 Conclusions IV Pattern Analysis 12 Teleconnections Patterns / by ANTONIO NAVARRA 12.1 Objective Teleconnections 12.2 Singular Value Decomposition 12.3 Teleconnections in the Ocean-Atmosphere System 12.4 Concluding Remarks 13 Spatial Patterns: EOFs and CCA / by HANS VON STORCH 13.1 Introduction 13.2 Expansion into a Few Guess Patterns 13.2.1 Guess Patterns, Expansion Coefficients and Explained Variance 13.2.2 Example: Temperature Distribution in the Mediterranean Sea 13.2.3 Specification of Guess Patterns 13.2.4 Rotation of Guess Patterns 13.3 Empirical Orthogonal Functions 13.3.1 Definition of EOFs 13.3.2 What EOFs Are Not Designed for 13.3.3 Estimating EOFs 13.3.4 Example: Central European Temperature 13.4 Canonical Correlation Analysis 13.4.1 Definition of Canonical Correlation Patterns 13.4.2 CCA in EOF Coordinates 13.4.3 Estimation: CCA of Finite Samples 13.4.4 Example: Central European Temperature 14 Patterns in Time : SSA and MSSA / by ROBERT VAUTARD 14.1 Introduction 14.2 Reconstruction and Approximation of Attractors 14.2.1 The Embedding Problem 14.2.2 Dimension and Noise 14.2.3 The Macroscopic Approximation 14.3 Singular Spectrum Analysis 14.3.1 Time EOFs 14.3.2 Space-Time EOFs 14.3.3 Oscillatory Pairs 14.3.4 Spectral Properties 14.3.5 Choice of the Embedding Dimension 14.3.6 Estimating Time and Space-Time Patterns 14.4 Climatic Applications of SSA 14.4.1 The Analysis of Intraseasonal Oscillations 14.4.2 Empirical Long-Range Forecasts Using MSSA Predictors 14.5 Conclusions 15 Multivariate Statistical Modeling : POP-Model as a First Order Approximation / by JIN-SONG VON STORCH 15.1 Introduction 15.2 The Cross-Covariance Matrix and the Cross-Spectrum Matrix 15.3 Multivariate AR(1) Process and its Cross-Covariance and Cross-Spectrum Matrices 15.3.1 The System Matrix A and its POPs 15.3.2 Cross-Spectrum Matrix in POP-Basis: Its Matrix Formulation 15.3.3 Cross-Spectrum Matrix in POP-Basis: Its Diagonal Components
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  • 28
    Signatur: 4/M 23.95439
    In: Frontiers in earth sciences
    Beschreibung / Inhaltsverzeichnis: This book will constitute the proceedings of the ILP Workshop held in Abu Dhabi in December 2009. It will include a reprint of the 11 papers published in the December 2010 issue of the AJGS, together with 11 other original papers.
    Materialart: Monographie ausleihbar
    Seiten: xx, 474 Seiten , Illustrationen, Karten
    ISBN: 9783642292781 , 978-3-642-29278-1
    ISSN: 1863-4621
    Serie: Frontiers in earth sciences
    Sprache: Englisch
    Anmerkung: Contents Part I The Emirati Foreland and Foothills 1 Structural and stratigraphic evolution of Abu Dhabi in the context of Arabia / Ken W. Glennie 2 Architecture of the Oman–UAE ophiolite: evidence for a multi-phase magmatic history / K. M. Goodenough, M. T. Styles, D. Schofield, R. J. Thomas, Q. C. Crowley, R. M. Lilly, J. McKervey, D. Stephenson and J. N. Carney 3 New constrains on the thickness of the Semail ophiolite in the Northern Emirates / Charles Naville, Martine Ancel, Paul Andriessen, Patrice Ricarte and François Roure 4 The Jurassic–Cretaceous depositional and tectonic evolution of the southernwestern margin of the Neotethys Ocean, Northern Oman and United Arab Emirates / Emrys R. Phillips, Colin N. Waters and Richard A. Ellison 5 Forced folding of the neoautochthonous Late Cretaceous–Early Tertiary sequence at the western end of the Hatta Zone, Northern Oman Mountains / Mohammed Warrak 6 Seismic stratigraphy and subsidence history of the United Arab Emirates (UAE) rifted margin and overlying foreland basins / M. Y. Ali, A. B. Watts and M. P. Searle 7 Depth seismic imaging using reflection and first arrival traveltime tomography: Application to a deep profile across the Northern Emirates Foothills / Anne Jardin, Karine Broto and Timothée Perdrizet 8 Forward kinematic modelling of a regional transect in the Northern Emirates using geological and apatite fission track age constraints on paleo-burial history / Mihai Tarapoanca, Paul Andriessen, Karine Broto, Louis Chérel, Nadine Ellouz-Zimmermann, Jean-Luc Faure, Anne Jardin, Charles Naville and François Roure 9 Paleo-fluids characterisation and fluid flow modelling along a regional transect in Northern United Arab Emirates (UAE) / Jean-Paul Callot, Liesbeth Breesch, Nicole Guilhaumou, François Roure, Rudy Swennen and Nadège Vilasi 10 Diagenesis of the Khuff Formation (Permian–Triassic), northern United Arab Emirates / Simone Fontana, Fadi H. Nader, Sadoon Morad, Andrea Ceriani and Ihsan S. Al-Aasm Part II The Zagros and Makran tectonic wedges 11 Evidence for mantle exhumation along the Arabian margin in the Zagros (Kermanshah area, Iran) / Jean-Christophe Wrobel-Daveau, Jean-Claude Ringenbach, Saeid Tavakoli, Geoffrey M. H. Ruiz, Pierre Masse and Dominique Frizon de Lamotte 12 Structural style of the Makran Tertiary accretionary complex in SE-Iran / J.-P. Burg, A. Dolati, D. Bernoulli and J. Smit 13 Preliminary fault analysis and paleostress evolution in the Makran Fold-and-Thrust Belt in Iran / A. Dolati and J.-P Burg Part III Seismic hazards in Saudi Arabia and adjacent Parts of the Arabian Plate 14 Improvement of seismicity parameters in the Arabian Shield and Platform Using earthquake location and magnitude calibration / A. M. Al-Amri and A. J. Rodgers 15 Seismotectonics and seismogenic source zones of the Arabian Platform / Abdullah M. Al-Amri 16 Seismic zones regionalization and hazard assessment of SW Arabian Shield and Southern Red Sea Region / M. A. Al-Malki and A. M. Al-Amri Part IV Yemen margins and the Gulf of Aden 17 The Cryogenian Arc formation and successive High-K calc-alkaline plutons of Socotra Island (Yemen) / Y. Denèle, S. Leroy, E. Pelleter, R. Pik, J-Y Talbot and K. Khanbarri 18 Sedimentary basins of Yemen: their tectonic development and lithostratigraphic cover / Mustafa Abdullatif As-Saruri, Rasoul Sorkhabi and Rasheed Baraba 19 Paleostress analysis of the volcanic margins of Yemen / Khaled Khanbari and Philippe Huchon 20 From rifting to oceanic spreading in the Gulf of Aden: A synthesis / Sylvie Leroy, Philippe Razin, Julia Autin, François Bache, Elia d’Acremont, Louise Watremez, Jérémy Robinet, Céline Baurion, Yoann Denèle, Nicolas Bellahsen, Francis Lucazeau, Frédérique Rolandone, Stéphane Rouzo, Josep Serra Kiel, Cécile Robin, François Guillocheau, Christel Tiberi, Clémence Basuyau, Marie-Odile Beslier, Cynthia Ebinger, Graham Stuart, Abdulhakim Ahmed, Khaled Khanbari, Ismaël Al-Ganad, Philippe de Clarens, Patrick Unternehr, Khalfan Al-Toubi and Ali Al-Lazki 21 Upper mantle anisotropy of Southeast Arabia passive margin [Gulf of Aden Northern conjugate margin], Oman / Ali Al-Lazki, Cindy Ebinger, Michael Kendall, George Helffrich, Sylvie Leroy, Christel Tiberi, Graham Stuart and Khalfan Al-Toobi Part V Geodynamic Modelling 22 Samovar: a thermomechanical code for modeling of geodynamic processes in the lithosphere—application to basin evolution / Yuriy Elesin, Taras Gerya, Irina M. Artemieva and Hans Thybo Biographies Index
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  • 29
    Signatur: AWI G6-23-95368
    Materialart: Monographie ausleihbar
    Seiten: XIX, 1004 Seiten , Illustrationen
    ISBN: 9780891189602 , 978-0-891-18960-2 , 0891189602
    ISSN: 2163-5804 , 1047-4986
    Serie: Soil Science Society of America book series 10
    Sprache: Englisch
    Anmerkung: Contents Foreword Preface Contributors Chapter 1 Issues of Sampling Design in Wetlands / Monica Rivas Casado, Ron Corstanje, Pat Bellamy, and Ben Marchant DESIGN-BASED SAMPLING APPROACHES MODEL-BASED SAMPLING APPROACHES Chapter 2 Soil and Sediment Sampling of Inundated Environments / Todd Z. Osborne and R.D. DeLaune SAMPLING IN INUNDATED ENVIRONMENTS: SAMPLING PLAN AND GENERAL CONSIDERATIONS SAMPLING METHODS FOR INUNDATION DEPTHS LESS THAN 1.5 METERS SAMPLING METHODS FOR INUNDATION DEPTHS GREATER THAN 1.5 METERS SPECIAL CONDITIONS OR CONSIDERATIONS Chapter 3 Physicochemical Characterization of Wetland Soils / K.R. Reddy, M.W. Clark, R.D. DeLaune, and M. Kongchum SOIL SAMPLING PHYSICOCHEMICAL PROPERTIES CONCLUSIONS Chapter 4 Soil Pore Water Sampling Methods / M.M. Fisher and K.R. Reddy TECHNIQUES FOR SAMPLING SOIL PORE WATER SAMPLE HANDLING CONSIDERATIONS SAMPLING PORE WATER GASES SUMMARY Chapter 5 Reduction–Oxidation Potential and Oxygen / J. Patrick Megonigal and Martin Rabenhorst REDOX POTENTIAL THEORY OXYGEN MEASUREMENT WITH DIFFUSION CHAMBERS REDOX MEASUREMENT Chapter 6 Determination of Dissolved Oxygen, Hydrogen Sulfide, Iron(II), and Manganese(II) in Wetland Pore Waters / George W. Luther III and Andrew S. Madison EXPERIMENTAL PRINCIPLES OF ELECTRODE FABRICATION EXPERIMENTAL PRINCIPLES OF WORKING ELECTRODE CALIBRATIONS PROCEDURES FOR MICROPROFILING SUMMARY Chapter 7 Soil Redox Potential and pH Controllers / Kewei Yu and Jörg Rinklebe REDOX POTENTIAL AND pH CONTROL MODIFICATIONS AN AUTOMATED BIOGEOCHEMICAL MICROCOSM SYSTEM APPLICATIONS Chapter 8 Morphological Methods to Characterize Hydric Soils / M.J. Vepraskas EQUIPMENT METHODS AND TECHNIQUES FOR DESCRIBING HYDRIC SOILS FIELD TEST TO ASSESS SOIL MATERIAL TYPE IDENTIFYING HYDRIC SOIL FIELD INDICATORS Chapter 9 Emergent Macrophyte Biomass Production / Christopher Craft SAMPLING CONSIDERATIONS INDIRECT METHODS DIRECT METHODS EMERGING METHODS Chapter 10 Photosynthetic Measurements in Wetlands / S.R. Pezeshki OXYGEN EXCHANGE MEASUREMENT TECHNIQUE CARBON ISOTOPE TECHNIQUE MICROMETEOROLOGICAL TECHNIQUE CHLOROPHYLL FLUORESCENCE METHOD PHOTOSYNTHETIC MEASUREMENTS USING CHAMBERS SUMMARY Chapter 11 Gas Transport and Exchange through Wetland Plant Aerenchyma / Brian K. Sorrell and Hans Brix GENERAL PRINCIPLES EXPERIMENTAL PRINCIPLES LABORATORY AND GLASSHOUSE CHAMBERS MODELING APPROACHES Chapter 12 A Primer on Sampling Plant Communities in Wetlands / Curtis J. Richardson and Ryan S. King OVERVIEW OF SAMPLING PLANT POPULATIONS AND COMMUNITIES SAMPLE SIZE PLANT SAMPLING APPROACHES RAPID ASSESSMENT APPROACHES TO ESTIMATE PLANT ABUNDANCE AND COVER PERCENTAGE PLANT SAMPLING METHODS AND CALCULATION PROCEDURES ANALYSIS OF DATA COMPARISON OF PLANT COMMUNITIES SUGGESTIONS FOR DEVELOPING A PLANT SAMPLING PROGRAM APPENDIX Chapter 13 Plant Productivity—Bottomland Hardwood Forests / William H. Conner and Julia A. Cherry ABOVEGROUND PRODUCTIVITY BELOWGROUND PRODUCTIVITY Chapter 14 Current Methods to Evaluate Net Primary Production and Carbon Budgets in Mangrove Forests / Victor H. Rivera-Monroy, Edward Castañeda-Moya, Jordan G. Barr, Vic Engel, Jose D. Fuentes, Tiffany G. Troxler, Robert R. Twilley, Steven Bouillon, Thomas J. Smith III, and Thomas L. O’Halloran CURRENT METHODS TO ESTIMATE NET PRIMARY PRODUCTIVITY COMPARING MANGROVE NET PRIMARY PRODUCTION ESTIMATES TO WHOLE-FOREST CARBON FLUX MEASUREMENTS SUMMARY AND FUTURE RESEARCH DIRECTIONS APPENDIX Chapter 15 Characterization of Wetland Soil Organic Matter / Robert L. Cook and Thomas S. Bianchi SAMPLE TREATMENT AND PROCESSING SPECTROSCOPIC CHARACTERIZATION BULK ELEMENTAL AND CHEMICAL BIOMARKER ANALYSES SUMMARY Chapter 16 Dissolved Organic Matter / Robert G. Qualls EQUIPMENT AND INSTRUMENTATION MATERIALS AND REAGENTS SAMPLE PREPARATION PROCEDURES CONCLUSIONS Chapter 17 Soil Microbial Biomass and Phospholipid Fatty Acids / Jörg Rinklebe and Uwe Langer THE SUBSTRATE-INDUCED RESPIRATION METHOD PHOSPHOLIPID FATTY ACIDS ESTIMATES OF MICROBIAL BIOMASS SUMMARY Chapter 18 Molecular Genetic Analysis of Wetland Soils / Hee-Sung Bae and Andrew V. Ogram DNA EXTRACTION QUANTITATIVE POLYMERASE CHAIN REACTION POLYMERASE CHAIN REACTION BASED MOLECULAR CLONING Chapter 19 Enzyme Activities / Hojeong Kang, Seon-Young Kim, and Chris Freeman EQUIPMENT AND INSTRUMENTATION MATERIALS AND REAGENTS SAMPLE PREPARATION PROCEDURE CALCULATION SUMMARY Chapter 20 Organic Matter Mineralization and Decomposition / Scott D. Bridgham and Rongzhong Ye LITTER DECOMPOSITION DECOMPOSITION OF STANDARD SUBSTRATES SOIL HETEROTROPHIC RESPIRATION PHOTODEGRADATION Chapter 21 Methanogenesis and Methane Oxidation in Wetland Soils / Kanika S. Inglett, Jeffery P. Chanton, and Patrick W. Inglett EXPERIMENTAL METHANE MEASUREMENTS ISOTOPIC MEASUREMENTS OF METHANE Chapter 22 Greenhouse Gas Emission by Static Chamber and Eddy Flux Methods / Kewei Yu, April Hiscox, and R.D. DeLaune STATIC CHAMBER MEASUREMENT EDDY COVARIANCE MEASUREMENT SUMMARY Chapter 23 Characterization of Organic Nitrogen in Wetlands / C.M. VanZomeren, H. Knicker, W.T. Cooper, and K.R. Reddy CHEMICAL FRACTIONATION OF SOIL ORGANIC NITROGEN CHLOROFORM FUMIGATION METHOD NUCLEAR RESONANCE SPECTROSCOPY MASS SPECTROMETRY OF ORGANIC NITROGEN CONCLUSIONS Chapter 24 Measurements of Nitrogen Mineralization Potential in Wetland Soils / Eric D. Roy and John R. White POTENTIALLY MINERALIZABLE NITROGEN SUBSTRATE-INDUCED NITROGEN MINERALIZATION LIMITATIONS SUMMARY Chapter 25 Wind Tunnel Method for Measurement of Ammonia Volatilization / M.E. Poach, K.S. Ro, and P.G. Hunt EQUIPMENT AND INSTRUMENTATION MATERIALS AND REAGENTS SAMPLE PREPARATION PROCEDURE SAMPLE ANALYSIS CALCULATION STATISTICAL ANALYSIS QUALITY ASSURANCE SUMMARY Chapter 26 Ammonium Oxidation in Wetland Soils / K.S. Inglett, A.V. Ogram, and K.R. Reddy AEROBIC AMMONIUM OXIDATION (NITRIFICATION) ANAEROBIC AMMONIUM OXIDATION (ANAMMOX) METHODS FOR ASSESSING AEROBIC AMMONIUM OXIDATION (NITRIFICATION) METHODS FOR ASSESSING ANAEROBIC AMMONIUM OXIDATION (ANAMMOX) POTENTIAL MOLECULAR METHODS FOR ASSESSING AMMONIUM OXDIATION IN WETLAND SOILS SUMMARY Chapter 27 Denitrification Measurement Using Membrane Inlet Mass Spectrometry / Patrick W. Inglett, Todd M. Kana, and Soonmo An GENERAL PRINCIPLES EXPERIMENTAL PRINCIPLES ISOTOPE PAIRING BY THE MIMS METHOD SUMMARY Chapter 28 Nitrate Reduction, Denitrification, and Dissimilatory Nitrate Reduction to Ammonium in Wetland Sediments / Amy J. Burgin, Stephen K. Hamilton, Wayne S. Gardner, and Mark J. McCarthy EQUIPMENT AND INSTRUMENTATION MATERIALS AND REAGENTS PROCEDURES SAMPLE PREPARATION CALCULATIONS Chapter 29 System-Level Denitrification Measurement Based on Dissolved Gas Equilibration Theory and Membrane Inlet Mass Spectrometry / Andrew Laursen and Patrick W. Inglett GENERAL THEORY EXPERIMENTAL PRINCIPLES CALCULATIONS DISCUSSION AND LIMITATIONS SUMMARY Chapter 30 Biogeochemical Nitrogen Cycling in Wetland Ecosystems: Nitrogen-15 Isotope Techniques / Dries Huygens, Mark Trimmer, Tobias Rütting, Christoph Müller, Catherine M. Heppell, Katrina Lansdown, and Pascal Boeckx EXPERIMENTAL STUDY SETUPS ISOTOPE PAIRING AND REVISED ISOTOPE PAIRING TECHNIQUES ISOTOPE DILUTION AND TRACING TECHNIQUES Chapter 31 Biological Dinitrogen Fixation / Patrick W. Inglett ACETYLENE REDUCTION DINITROGEN-15 INCORPORATION SUMMARY Chapter 32 Methods for Soil Phosphorus Characterization and Analysis of Wetland Soils / Curtis J. Richardson and K.R. Reddy TERMINOLOGY, OPERATIONAL DEFINITIONS, AND COMPARISON OF PHOSPHORUS FORMS SAMPLE PREPARATION AND STORAGE SOIL PHOSPHORUS ANALYSIS PHOSPHORUS AVAILABILITY INDICES ANION EXCHANGE RESIN AND IRON OXIDE PAPER SOIL INORGANIC PHOSPHORUS FORMS GENERAL COMMENTS Chapter 33 Phosphorus Characterization in Wetland Soils by Solution Phosphorus-31 Nuclear Magnetic Resonance Spectroscopy / Alexander W. Cheesman, James Rocca, and Benjamin L. Turner BRIEF OVERVIEW OF THE PRINCIPLES APPLICATION TO WETLAND SOILS Chapter 34 Phosphorus Sorption and Desorption
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    Zweigbibliothek: AWI Bibliothek
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  • 30
    Monographie ausleihbar
    Monographie ausleihbar
    Sankt-Peterburg : Sankt-Peterburgskij Gosudarstvennyj Universitet
    Signatur: AWI Bio-13-0030
    Beschreibung / Inhaltsverzeichnis: Atlas contains photographic images of 91 plant species and pollen which are found in Lena River Delta as well as information about current conditions of their growth. This is a major advantage of this atlas as compared to other publications of this kind. All information is presented in Russian and English. All materials were collected in framework of the Russian-German expeditions "Lena-2009", "Lena-2010", "Lena-2011" and "Lena-2012". Photographs illustrate the general view of the plant, inflorescence and pollen grains in different positions and from high to low focus. Plants are grouped into families, where each family has its own color. Atlas is addressed not only to specialists in palynology, but to all who are interested in the flora and vegetation of the Arctic region, including students of geographical, biological and environmental fields.
    Materialart: Monographie ausleihbar
    Seiten: 111 Seiten , Illustrationen
    ISBN: 9785439100361
    Sprache: Russisch , Englisch
    Anmerkung: Contents: Introduction. - Apiaceae. - Asteraceae. - Betulaceae. - Boraginaceae. - Brassicaceae. - Campanulaceae. - Caryophyllaceae. - Crassulaceae. - Cyperaceae. - Diapensiaceae. - Ericaceae. - Fabaceae. - Gentianaceae. - Hippuriadaceae. - Juncaceae. - Lentibulariaceae. - Liliaceae. - Onagraceae. - Papaveraceae. - Parnassiaceae. - Pinaceae. - Plumbaginaceae. - Poaceae. - Polemoniaceae. - Polygonaceae. - Portulacaceae. - Primulaceae. - Pyrolaceae. - Ranunculaceae. - Rosaceae. - Salicaceae. - Saxifragaceae. - Scrophulariaceae. - Valerianaceae. - Index of plants by family. - Alphabetical index of plants. , In englischer und russischer Sprache. , Teilw. in kyrillischer Schrift
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  • 31
    Signatur: AWI G3-23-95336
    In: Miscellaneous Report / Geological Survey of Canada, 64
    Materialart: Monographie ausleihbar
    Seiten: 71 Seiten , Illustrationen, Karten
    ISBN: 0660174642 , 0-660-17464-2
    Serie: Miscellaneous Report / Geological Survey of Canada 64
    Sprache: Englisch
    Anmerkung: Abstract Résumé Acknowledgments Welcome to Yellowknife Part I: The landscape and the people Geological evolution of the landscape Bedrock geology Surficial geology Climate and vegetation History of Yellowknife From gold to government Significant events Part II: Living with frozen ground Permafrost Regional distribution Permafrost occurrence in Yellowknife Significance of peat Significance of moisture Ice lenses Thaw stable and thaw unstable ground Thaw settlement Frost heave Development Buildings Roads Utilities Thermosyphons Climate change - an uncertain future for permafrost Climate and permafrost history Air temperature trends over the last century Response of air temperatures to doubling of greenhouse gases Effect of climate warming on permafrost in Yellowknife Impacts of climate warming Part III: Guide to field stops Introduction The Capital Tour - Capital Site to Bowling Green building Stop 1. The Capital Site - a profusion of peat Stop 2. Legislative Assembly - design with nature Stop 3. Legislative Assembly roadway - perils of paving peat Stop 4. Walking path - tipping trails Stop 5. Legislative Assembly parking lot - preserving permafrost Stop 6. Frame Lake - Yellowknife's aquatic centrepiece Stop 7. National Defence building - seeking solid ground Stop 8. Visitors Centre - rocking and rolling Stop 9. 49 Street thermosyphons - keeping it cool Stop 10. Bowling Green building - swallowing sidewalks The City Tour - 49 Avenue to Niven Lake Stop 11. 49 and 49 intersection - rolling roadways Stop 12. 49 Avenue - sagging sidewalks Stop 13. Downtown Yellowknife - safe on sand Stop 14. Gold Range Hotel - making things work Stop 15. Centre Square Mall - stemming shifting sands Stop 16. Boston Pizza - fast food on a slab Stop 17. Royal Oak Mines Inc. houses - half a century later Stop 18. 52 Avenue - up, up, and ... away Stop 19. 49 Street hill - leaving good ground Stop 20. 54 Avenue - frozen dangers underfoot Stop 21. Rockcliffe Apartments - creeping crawl space Stop 22. School Draw subdivision - houses on the move Stop 23. School Draw Park - from basements to basketballs Stop 24. Rock outcrop - on the shores of glacial Lake McConnell Stop 25. Detah ice road - crystal highway Stop 26. Old Town - doing things the old-fashioned way Stop 27. Franklin Avenue - whither frozen ground? Stop 28. Fritz Theil Park - from dump to diamond I Stop 29. Old sewage line - pipes and peat Stop 30. Niven Lake - a subarctic oasis I Part IV: The Niven Lake Trail Introduction Stop 1. A biological magnet for waterbirds Stop 2. The land of little sticks Stop 3. The wonder of wetlands Stop 4. Niven Lake -urban oasis for wildlife Stop 5. Peat, beautiful peat Stop 6. Honolulu north? Stop 7. Home sweet home -all year round Stop 8. Those mud-slinging, bug-poking shorebirds Glossary of terms Selected references List of field guides for Yellowknife
    Standort: AWI Lesesaal
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  • 32
    Signatur: AWI G4-23-95001
    Materialart: Monographie ausleihbar
    Seiten: ii, 62 Seiten , Illustrationen
    Sprache: Englisch
    Anmerkung: Contents Summary Introduction Material and Methods 2.1 Experimental Approach and Concept 2.2 Cold Chamber Experiments 2.2.1 Packed Sand Columns 2.2.2 Undisturbed Soil Monolith 2.3 Tracer Extraction and Determination of Tracer Concentrations 2.4 Digital Image Analysis 2.4.1 Photographic Recording 2.4.2 Image Analysis 2.4.3 Statistical Regression Analysis 2.5 Fluorescence Imaging 2.6 Low-Temperature SEM and X-Ray Analysis 2.7 Numerical Simulation 2.7.1 Model Description 2.7.2 Model Application 3 Results From Cold Chamber Experiments 3.1 Packed Sand Columns (Experiment I-III) 3.1.1 Infiltration Behaviour (Experiment I-III) 3.1.2 Dye Tracer Distribution (Experiment III) 3.1.3 Mass Recovery of Dye Tracers (Experiment III) 3.1.4 Vertical Distribution of Dye Tracers Determined From Large Sections (Experiment III) 3.2 Undisturbed Soil Monolith (Experiment IV) 3.2.1 Infiltration Behaviour 3.2.2 Dye Tracer Distributions 3.2.3 Mass Recovery of all Tracers Determined From Large Sections 3.2.4 Vertical Distribution of all Tracers Determined From Large Sections 4 Results From Low-Temperature SEM and X-Ray Analysis 4.1 Dry Sand and Loam 4.2 Wet Sand 4.3 Wet Loam 5 Modelling Results 5.1 Thermal Regime 5.2 Water Content Profile Before the Irrigation 5.3 Infiltration Behaviour 5.4 Water Content Profile After the Irrigation 5.5 Solute Transport 5.6 Energy Exchange at the Surface 6 Conclusions 6.1 Conclusions About the Methods 6.2 Conclusions About the Water Infiltration in Frozen Soil List of Figures List of Tables Bibliography
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  • 33
    Monographie ausleihbar
    Monographie ausleihbar
    Sankt.Peterburg : Izdatel'stvo "Mir i Sem'ja 95", Glavnoe Agentstvo Vozdušnych Soobščenij Rossijskoj Federacii
    Signatur: AWI Bio-23-95317
    Materialart: Monographie ausleihbar
    Seiten: 119 Seiten , Illustrationen , 1 Beilage
    ISBN: 5-90016-27-1
    Sprache: Russisch , Englisch , Französisch
    Anmerkung: Zum Teil in kyrillischer Schrift. , Text in russischer, englischer und französischer Sprache
    Standort: AWI Lesesaal
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  • 34
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge [u.a.] : Cambridge University Press
    Signatur: AWI A4-11-0035
    Beschreibung / Inhaltsverzeichnis: The polar regions have experienced some remarkable environmental changes in recent decades, such as the Antarctic ozone hole, the loss of large amounts of sea ice from the Arctic Ocean and major warming on the Antarctic Peninsula. The polar regions are also predicted to warm more than any other region on Earth over the next century if greenhouse gas concentrations continue to rise. Yet trying to separate natural climate variability from anthropogenic forcing still presents many problems. This book presents a thorough review of how the polar climates have changed over the last million years and sets recent changes within a long term perspective, as determined from ice and ocean sediment cores. The approach taken is highly cross-disciplinary and the close links between the atmosphere, ocean and ice at high latitudes are stressed. The volume will be invaluable for researchers and advanced students in polar science, climatology, global change, meteorology, oceanography and glaciology.
    Materialart: Monographie ausleihbar
    Seiten: xii, 434 Seiten , Illustrationen
    Ausgabe: First published
    ISBN: 9780521850100 , 978-0-521-85010-0
    Sprache: Englisch
    Anmerkung: Contents: Preface. - 1. Introduction. - 1.1 The environment of the polar regions. - 1.2 The role of the polar regions in the global climate system. - 1.3 Possible implications of high latitude climate change. - 2. Polar climate data and models. - 2.1 Introduction. - 2.2 Instrumental observations. - 2.3 Meteorological analysis fields. - 2.4 Remotely sensed data. - 2.5 Proxy climate data. - 2.6 Models. - 3. The high latitude climates and mechanisms of change. - 3.1 Introduction. - 3.2 Factors influencing the broadscale climated of the polar regions. - 3.3 Processes of the high latitude climates. - 3.4 The mechanisms of high latitude climate change. - 3.5 Atmospheric circulation. - 3.6 Temperature. - 3.7 Cloud and precipitation. - 3.8 Sea ice. - 3.9 The ocean circulation. - 3.10 Concluding remarks. - 4. The last million years. - 4.1 Introduction. - 4.2 The Arctic. - 4.3 The Antarctic. - 4.4 Linking high latitude climate change in the two hemispheres. - 5. The Holocene. - 5.1 Introduction. - 5.2 Forcing of the climate system during the Holocene. - 5.3 Atmospheric circulation. - 5.4 Temperature. - 5.5 The ocean circulation. - 5.6 Sea ice and sea surface temperatures. - 5.7 Atmospheric gases and aerosols. - 5.8 The cryosphere, precipitation and sea level. - 5.9 Concluding remarks. - 6. The instrumental period. - 6.1 Introduction. - 6.2 The main meteorological elements. - 6.3 Changes in the atmospheric circulation. - 6.4 The ocean environment. - 6.5 Sea ice. - 6.6. Snow cover. - 6.7 Permafrost. - 6.8 Atmospheric gases and aerosols. - 6.9 Terrestrial ice and sea level. - 6.10 Attribution of recent changes. - 6.11 Concluding remarks. - 7. Predictions for the next 100 years. - 7.1 Introduction. - 7.2 Possible future greenhouse gas emission scenarios and the IPCC models. - 7.3 Changes in the atmospheric circulation and the modes of climate variability. - 7.4 The main meteorological elements. - 7.5 The ocean circulation and water masses. - 7.6 Sea ice. - 7.7 Seasonal snow cover and the terrestrial environment. - 7.8 Permafrost. - 7.9 Atmospheric gases and aerosols. - 7.10 Terrestrial ice, the ice shelves and sea level. - 7.11 Concluding remarks. - 8. Summary and future research needs. - 8.1 Introduction. - 8.2 Gaining improved understanding of past climate change. - 8.3 Modelling the high latitude climate system. - 8.4 Data required. - 8.5 Concluding remarks. - References. - Index.
    Standort: AWI Lesesaal
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  • 35
    Publikationsdatum: 2023-07-18
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
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  • 36
    facet.materialart.
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    Springer
    Publikationsdatum: 2023-07-18
    Beschreibung: ‘Transgovernance: Advancing Sustainability Governance’ analyses what implications recent and ongoing changes in the relations between politics, science and media – together characterized as the emergence of a knowledge democracy – may have for governance for sustainable development, on global and other levels of societal decision making, and vice versa: How can the discussion on sustainable development contribute to a knowledge democracy? How can concepts such as second modernity, reflexivity, configuration theory, (meta)governance theory and cultural theory contribute to a ‘transgovernance’ approach which goes beyond mainstream sustainability governance? This volume presents contributions from various angles: international relations, governance and metagovernance theory, (environmental) economics and innovation science. It offers challenging insights regarding institutions and transformation processes, and into the paradigms behind contemporary sustainability governance. This book gives the sustainability governance debate a new context. It transforms classical questions into new options for societal decision making and identifies starting points and strategies aimed at effective governance of transitions to sustainability.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/book
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  • 37
    Publikationsdatum: 2023-07-18
    Beschreibung: The concept of boundary work has been put forward as an analytical approach towards the study of interactions between science and policy. While the concept has been useful as a case-study approach, there are several weaknesses and constraints when using the concept in a more systemic analysis of the interactions between knowledge production and sustainable development decision-making at the international level, such as its inability to capture the diversity of institutions involved in such boundary work. Another inability involves a lack of conceptualisation of the impacts of the specific conditions of intergovernmental decision-making, such as rules for representation and the mode of negotiation. This chapter suggests complementing the concept of boundary work with a configuration approach based on a two-dimensional conceptualisation of the boundary space in international decision-making that allows the positioning of institutions with regard to their degree of politicisation and their position in terms of national and regional representation. Such an approach could be a useful guide in the further conceptualisation and application of the boundary concept.
    Sprache: Englisch
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  • 38
    Publikationsdatum: 2023-07-18
    Beschreibung: Hydrothermal carbonization (HTC) is an aqueous-phase route to produce carbon materials using biomass or biomass-derived precursors. In this paper, a comprehensive physicochemical and textural characterization of HTC materials obtained using four different precursors, namely, xylose, glucose, sucrose, and starch, is presented. The development of porosity in the prepared HTC materials as a function of thermal treatment (under an inert atmosphere) was specifically monitored using N2 and CO2 sorption analysis. The events taking place during the thermal treatment process were studied by a combined thermogravimetric/infrared (TGA-IR) measurement. Interestingly, these inexpensive biomass-derived carbon materials show good selectivity for CO2 adsorption over N2 (CO2/N2 selectivity of 20 at 273 K, 1 bar and 1:1 gas composition). Furthermore, the elemental composition, morphologies, degree of structural order, surface charge, and functional groups are also investigated.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
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  • 39
    facet.materialart.
    Unbekannt
    In:  Soils of Urban, Industrial, Traffic, Mining and Military Areas. SUITMA 7. Abstracts
    Publikationsdatum: 2023-07-18
    Beschreibung: The recognition of soils and their functions by the public and, in particular, the planning community isgenerally poor. However, conversion of soils to urban uses is occurring at an unprecedented rate dueto an increasing share of the population living in urban areas and changing lifestyles. Urban planners,developers and planning agencies allocate urban lands to varying uses but land use decisions aregenerally not based on soil information as urban growth is managed predominantly for economicdevelopment. However, urban areas must also deal with challenges such as demographic change,urban densification, climate change and infrastructure provision. Thus, managing urban sustainabilityhas to include ecological aside economic, cultural, and political dimensions. Urban developmentneeds to be managed to minimize negative impacts and maximize environmental quality. Policydecisions towards maximizing short-term economic benefits must be balanced by decisions towardssustainable use and management of urban soils as urban land use has long-term consequences. Therecognition of soils by the planning community can particularly be improved by highlighting the valueof urban soil functions for the well-being of urban dwellers. This approach was recommended at thedialogue session ’Urbanization: Challenges to Soil Management‘ during the first Global Soil Week2012 in Berlin, Germany. Further suggestions how to raise the awareness about urban soils and howto deal with challenges regarding their management will be presented.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/conferenceObject
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  • 40
    Publikationsdatum: 2023-07-18
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
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  • 41
    Publikationsdatum: 2023-07-18
    Beschreibung: Temporal and spatial patterns in eastern North Atlantic sea-surface temperatures (SST) were reconstructed for marine isotope stage (MIS) 11c using a submeridional transect of five sediment cores. The SST reconstructions are based on planktic foraminiferal abundances and alkenone indices, and are supported by benthic and planktic stable isotope measurements, as well as by ice-rafted debris content in polar and middle latitudes. Additionally, the larger-scale dynamics of the precipitation regime over northern Africa and the western Mediterranean region was evaluated from iron concentrations in marine sediments off NW Africa and planktic δ 13C in combination with analysis of planktic foraminiferal abundances down to the species level in the Mediterranean Sea. Compared to the modern situation, it is revealed that during entire MIS 11c sensu stricto (ss), i.e., between 420 and 398ka according to our age models, a cold SST anomaly in the Nordic seas co-existed with a warm SST anomaly in the middle latitudes and the subtropics, resulting in steeper meridional SST gradients than during the Holocene. Such a SST pattern correlates well with a prevalence of a negative mode of the modern North Atlantic Oscillation. We suggest that our scenario might partly explain the longer duration of wet conditions in the northern Africa during MIS 11c compared to the Holocene.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
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  • 42
    facet.materialart.
    Unbekannt
    In:  The Roads From Rio: Lessons Learned from Twenty Years of Multilateral Environmental Negotiations
    Publikationsdatum: 2023-07-18
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/bookPart
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  • 43
    Publikationsdatum: 2023-07-18
    Beschreibung: The dynamics of the 18O(3P) + 32O2 isotope exchange reaction were studied using crossed atomic and molecular beams at collision energies (Ecoll) of 5.7 and 7.3 kcal/mol, and experimental results were compared with quantum statistical (QS) and quasi-classical trajectory (QCT) calculations on the O3(X1A’) potential energy surface (PES) of Babikov et al. [D. Babikov, B. K. Kendrick, R. B. Walker, R. T. Pack, P. Fleurat-Lesard, and R. Schinke, J. Chem. Phys.118, 6298 (2003)]. In both QS and QCT calculations, agreement with experiment was markedly improved by performing calculations with the experimental distribution of collision energies instead of fixed at the average collision energy. At both collision energies, the scattering displayed a forward bias, with a smaller bias at the lower Ecoll. Comparisons with the QS calculations suggest that 34O2 is produced with a non-statistical rovibrational distribution that is hotter than predicted, and the discrepancy is larger at the lower Ecoll. If this underprediction of rovibrational excitation by the QS method is not due to PES errors and/or to non-adiabatic effects not included in the calculations, then this collision energy dependence is opposite to what might be expected based on collision complex lifetime arguments and opposite to that measured for the forward bias. While the QCT calculations captured the experimental product vibrational energy distribution better than the QS method, the QCT results underpredicted rotationally excited products, overpredicted forward-bias and predicted a trend in the strength of forward-bias with collision energy opposite to that measured, indicating that it does not completely capture the dynamic behavior measured in the experiment. Thus, these results further underscore the need for improvement in theoretical treatments of dynamics on the O3(X1A’) PES and perhaps of the PES itself in order to better understand and predict non-statistical effects in this reaction and in the formation of ozone (in which the intermediate O3 * complex is collisionally stabilized by a third body). The scattering data presented here at two different collision energies provide important benchmarks to guide these improvements.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
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  • 44
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    Unbekannt
    In:  Recarbonization of the biosphere : ecosystems and the global carbon cycle
    Publikationsdatum: 2023-07-18
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/bookPart
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  • 45
    facet.materialart.
    Unbekannt
    In:  The Asahi Shimbun AJW, January 27, 2013
    Publikationsdatum: 2023-07-18
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/other
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  • 46
    Publikationsdatum: 2023-07-18
    Beschreibung: Institutions for biodiversity governance are located at the interface of human and ecological systems. The analysis of such institutions is challenged due to addressing a multitude of complex interactions between these two systems occurring at different natural scales and levels of human organization. Due to this complexity, empirical analysis of biodiversity management often leads to context-specific explanations, providing little scope for comparative work or the development of more generalised, theory-based accounts. We aim at reducing complexity in understanding human-biodiversity relations, making cases comparable across sites, and propose that, in order to address complexity, we need a method of abstraction that leads to the development of a more structured analysis, based on selection of explanatory factors according to cconceptual models as well as empirical significance. We suggest that the stylisation of typical "resource use-perspectives" - the combination of typical transactions that are inextricably linked by the interest of the actor - can be a useful method for realizing appropriate model selection. In this paper, we provide an account of how use-perspectives can be developed and to what kind of analysis they can contribute, using the example of agrobiodiversity in grain as seed, food, or genetic material.
    Sprache: Englisch
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  • 47
    Publikationsdatum: 2023-07-18
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
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  • 48
    facet.materialart.
    Unbekannt
    In:  Recarbonization of the biosphere : ecosystems and the global carbon cycle
    Publikationsdatum: 2023-07-18
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/bookPart
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  • 49
    Publikationsdatum: 2023-07-18
    Beschreibung: Abstract. It has been claimed for more than a century that atmospheric new particle formation is primarily influenced by the presence of sulfuric acid. However, the activation process of sulfuric acid related clusters into detectable particles is still an unresolved topic. In this study we focus on the PARADE campaign measurements conducted during August/September 2011 at Mt Kleiner Feldberg in central Germany. During this campaign a set of radicals, organic and inorganic compounds and oxidants and aerosol properties were measured or calculated. We compared a range of organic and inorganic nucleation theories, evaluating their ability to simulate measured particle formation rates at 3 nm in diameter (J3) for a variety of different conditions. Nucleation mechanisms involving only sulfuric acid tentatively captured the observed noon-time daily maximum in J3, but displayed an increasing difference to J3 measurements during the rest of the diurnal cycle. Including large organic radicals, i.e. organic peroxy radicals (RO2) deriving from monoterpenes and their oxidation products, in the nucleation mechanism improved the correlation between observed and simulated J3. This supports a recently proposed empirical relationship for new particle formation that has been used in global models. However, the best match between theory and measurements for the site of interest was found for an activation process based on large organic peroxy radicals and stabilised Criegee intermediates (sCI). This novel laboratory-derived algorithm simulated the daily pattern and intensity of J3 observed in the ambient data. In this algorithm organic derived radicals are involved in activation and growth and link the formation rate of smallest aerosol particles with OH during daytime and NO3 during night-time. Because the RO2 lifetime is controlled by HO2 and NO we conclude that peroxy radicals and NO seem to play an important role for ambient radical chemistry not only with respect to oxidation capacity but also for the activation process of new particle formation. This is supposed to have significant impact of atmospheric radical species on aerosol chemistry and should be taken into account when studying the impact of new particles in climate feedback cycles.
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/article
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  • 50
    facet.materialart.
    Unbekannt
    In:  Recarbonization of the biosphere : ecosystems and the global carbon cycle
    Publikationsdatum: 2023-07-18
    Sprache: Englisch
    Materialart: info:eu-repo/semantics/bookPart
    Standort Signatur Erwartet Verfügbarkeit
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