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  • Books  (4)
  • Hamburg : maribus gGmbH  (2)
  • Potsdam  (2)
  • English  (3)
  • German  (1)
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  • 1
    Dissertations
    Dissertations
    Soil organic carbon and nitrogen pools in thermokarst-affected permafrost terrain (2019)
    Potsdam
    Details Availability
    Call number: AWI G6-19-92461
    Type of Medium: Dissertations
    Pages: XVI, 203 Seiten , Illustrationen, Diagramme
    URL: https://d-nb.info/1182941680/04
    Language: English
    Note: Dissertation, Universität Potsdam, 2019 , Table of contents Abstract Zusammenfassung Abbreviations 1 Introduction 1.1 Scientific background 1.1.1 Permafrost in the Northern Hemisphere 1.1.2 The permafrost carbon climate feedback 1.1.3 Rapidly changing, deep permafrost environments 1.2 Aims of this dissertation 1.3 Investigated study areas 1.4 Basic method overview 1.4.1 Field work in the Arctic 1.4.2 Laboratory procedure 1.4.3 Analysis ofl andscape-scale carbon and nitrogen stocks 1.5 Thesis organization 1.6 Overview of publications 1.6.1 Publication#1 - Yedoma landscape publication 1.6.2 Publication#2 - Thermokarst lake sequence publication 1.6.3 Publication#3 - North Alaska Arctic river delta publication 1.6.4 Extended Abstract - Western Alaska river delta study 1.6.5 Appendices - Supplementary material and paper in preparation II Carbon and nitrogen pools in thermokarst-affected permafrost landscapes in Arctic Siberia 2.1 Abstract 2.2 Introduction 2.3 Material and methods 2.3.1 Study area 2.3.2 Field Work 2.3.3 Laboratory analysis 2.3.4 Landform classification and upscaling C and N pools 2.4 Results 2.4.1 Sedimentological results 2.4.2 Sampling site SOC and N stocks 2.4.3 Upscaling: Landscape SOC and N stocks 2.4.4 Radiocarbon dates 2.5 Discussion 2.5.1 Site specific soil organic C and N stock characteristics 2.5.2 Upscaling of C and N pools 2.5.3 Sediment and organic C accumulation rates 2.5.4 Characterizing soil organic carbon 2.5.5 The fate of organic carbon in thermokarst-affected yedoma in Siberia 2.6 Conclusions III Impacts of successive thermokarst lake stages on soil organic matter, Arctic Alaska 3.1 Abstract 3.2 Plain language summary 3.3 Introduction 3.4 Study site 3.5 Methods 3.5.1 Core collection 3.5.2 Biogeochemical analyses 3.5.3 Study area OC and N calculation 3.6 Results 3.6.1 Biogeochemistry 3.6.2 Sediment organic carbon and nitrogen stocks 3.6.3 Radiocarbon dates and carbon accumulation rates 3.6.4 Landscape C and N budget 3.7 Discussion 3.7.1 Impact of thermokarst lake dynamics on organic matter storage 3.7.2 High organic C and N stocks on the ACP 3.7.3 Landscape chronology 3.7.4 Organic matter accumulation 3.7.5 Future development 3.8 Conclusions IV Sedimentary and geochemical characteristics of two small permafrost-dominated Arctic river deltas in northern Alaska 4.1 Abstract 4.2 Introduction 4.3 Study area 4.4 Material and Methods 4.4.1 Soil organic carbon and soil nitrogen storage 4.4.2 Radiocarbon dating and organic carbon accumulation rates 4.4.3 Grain size distribution 4.4.4 Scaling carbon and nitrogen contents to landscape level 4.5 Results 4.5.1 Carbon and nitrogen contents 4.5.2 Radiocarbon dates and accumulation rates 4.5.3 Grain size distribution 4.5.4 Arctic river delta carbon and nitrogen storage 4.6. Discussion 4.6.1 Significance of carbon and nitrogen stocks in Arctic river deltas 4.6.2 SOC and SN distribution with depth 4.6.3 Sedimentary characteristics 4.6.3.1 Accumulation rates 4.6.3.2 Sediment distribution 4.6.4 Impacts of future changes 4.6.5 Significance of remotely sensed upscaling results 4.7 Conclusions V Soil carbon and nitrogen stocks in Arctic river deltas - New data for three Western Alaskan deltas 5.1 Abstract 5.2 Introduction 5.3 Study sites 5.4 Methods 5.5 Results and discussion 5.5 Conclusions VI Discussion 6.1 Interregional comparison 6.2 Changing thermokarst landscapes and their global impact 6.3 A growing C and N data base 6.4 Outlook - potential follow-up projects VII Synthesis VIII References Appendix A Synthesis of SOC and N inventories Appendix B Supplementary material to Chapter II Appendix C Supplementary material to Chapter III Appendix D Supplementary material to Chapter IV Appendix E Supplementary material to Chapter V Appendix F Arctic river delta data set - Version 1.0 Acknowledgements - Danksagung
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  • 2
    Series available for loan
    Series available for loan
    Arktis und Antarktis - extrem, klimarelevant, gefährdet (2019)
    Hamburg : maribus gGmbH
    Associated volumes
    Details Availability
    Call number: AWI P7-19-93234 ; IASS 19.93234 ; PIK N 454-20-93234
    In: World ocean review, 6
    Type of Medium: Series available for loan
    Pages: 329 Seiten , Illustrationen
    ISBN: 978-3-86648-634-8
    Series Statement: World ocean review 6
    URL: https://worldoceanreview.com/de/.wor-6/
    Language: German
    Note: Inhalt Vorwort Arktis und Antarktis – Naturräume in Poleposition Eine kurze Geschichte der Polarregionen Der Mensch erobert die Polargebiete Conclusio: Arktis und Antarktis – zwei grundverschiedene Polargebiete Die Polargebiete als Teil des globalen Klimasystems Warum es in den Polarregionen so kalt wird Eisschollen, Eisschilde und das Meer Conclusio: Eine Kettenreaktion mit frostigem Ende Die Auswirkungen des Klimawandels auf die Polarregionen Die Pfade der Wärme Der Rückzug des Eises Conclusio: Mehr Wärme – viel weniger Eis Die Flora und Fauna der Polarregionen Ein Leben in der Kälte Das Leben im Meer Polare Ökosysteme auf dem Rückzug Conclusio: Hochspezialisiert und extrem gefährdet Politik und Wirtschaft in den Polarregionen Die Arktis und die Antarktis als politische Arenen Ein Wirtschaftsaufschwung mit Nebenwirkungen Conclusio: Wachsendes Interesse an den Polarregionen Gesamt-Conclusio Glossar Abkürzungen Quellenverzeichnis Mitwirkende Index Partner und Danksagung Abbildungsverzeichnis Impressum
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  • 3
    Dissertations
    Dissertations
    The changing Arctic freshwater system : the biogeochemistry of small Arctic coastal catchments (2019)
    Potsdam
    Details Availability
    Call number: AWI G3-20-93465
    Type of Medium: Dissertations
    Pages: xi, 113, xxxvii Seiten , Illustrationen, Diagramme
    URL: Inhaltsverzeichnis
    Language: English
    Note: Table of Contents Abstract Zusammenfassung List of Figures List of Tables 1. Introduction 1.1 Scientific Background 1.1.1 Arctic Climate Change 1.1.2 Permafrost Degradation 1.1.3 The Arctic Freshwater System and its Biogeochemistry 1.2 Objectives 1.3 Study Region and Methods 1.3.1 Study Area 1.3.2 Field Sampling and Measurements 1.3.3 Geochemical Analyses 1.3.4 Data Processing 1.4 Thesis Structure 1.5 Author Contributions 2. Spatial Variability of Dissolved Organic Carbon, Solutes and Suspended Sediment in Disturbed Low Arctic Coastal Watersheds 2.1 Abstract 2.2 Introduction 2.3 Study Site 2.4 Methods 2.4.1 Stream Monitoring 2.4.2 Mapping of Disturbances 2.4.3 Flux Estimates and Statistics 2.5 Results 2.5.1 Catchment Disturbance 2.5.2 Runoff and Hydrochemistry 2.5.3 Lateral Transport of Stream Water 2.5.4 Hydrochemical Composition and Fluxes in Nearby Streams 2.6 Discussion 2.6.1 Total Runoff and Water Quality 2.6.2 Water Quality Changes from Headwaters to Downstream 2.6.3 Changes in Hydrochemistry and Isotopic Composition over Time 2.6.4 Importance of Disturbances for Hydrochemistry 2.7 Conclusions 2.8 Supplementary Material 3. Terrestrial Colored Dissolved Organic Matter (cDOM) in Arctic Catchments - Characterizing Organic Matter Composition Across the Arctic 3.1 Introduction 3.2 Study Area 3.3 Methods 3.3.1 Field Methods and Hydrochemistry 3.3.2 Statistical Analyses 3.4 Results 3.4.1 Meteorological Conditions and General Hydrochemistry 3.4.2 DOC and cDOM Absorption Characteristics 3.4.3 Downstream Patterns of DOC and cDOM Along Longitudinal Transects 3.4.4 Temporal Trends ofDOC and cDOM with Changing Meteorological Conditions 3.5 Discussion 3.5.1 Limitations of cDOM Measurements from Terrestrial Sources 3.5.2 Catchment Processes and Biogeochemical Cycling 3.5.2.1 Regional Catchment Properties 3.5.2.2 Rainfall Events 3.5.2.3 Downstream Patterns and Impact of Permafrost Disturbance 3.5.3 Nature of cDOM-DOC Across the Terrestrial Arctic 3.6 Conclusion 3.7 Supplementary Material 4. Summer Rainfall DOC, Solute and Sediment Fluxes in a Small Arctic Coastal Catchment on Herschel Island (Yukon Territory, Canada) 4.1 Abstract 4.2 Introduction 4.3 Study Site 4.4 Methodology 4.4.1 Weather data 4.4.2 Hydrology 4.4.3 Suspended Sediment and Hydrochemistry 4.4.4 Flux Estimates and Statistics 4.5 Results 4.5.1 Meteorological Conditions 4.5.2 Streamflow and Electrical Conductivity 4.5.3 Transport of Suspended Sediment and Organic Matter 4.5.4 Solute Transport 4.5.5 Alluvial Fan Sampling 4.6 Discussion 4.6.1 Hydrological Response 4.6.2 Water Quality and Fluxes 4.6.3 Rainfall Response and Flow Pathways 4.7 Conclusions 4.8 Supplementary Material 5. Synthesis 5.1 Impacts of Permafrost Degradation on Stream Biogeochemistry 5.2 Controls on DOM Quality across the Arctic 5.3 Biogeochemical Fluxes from Small Coastal Catchments to the Arctic Ocean 5.4 Challenges 5.5 Outlook Acronyms Bibliography Acknowledgements Eidesstattliche Erklärung
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  • 4
    Monograph available for loan
    Monograph available for loan
    The Arctic and Antarctic - extreme, climatically crucial and in crisis (2019)
    Hamburg : maribus gGmbH
    Associated volumes
    Details Availability
    Call number: AWI P7-20-93379 ; PIK N 454-21-93379
    In: World ocean review, 6
    Type of Medium: Monograph available for loan
    Pages: 329 Seiten , Illustrationen
    ISBN: 978-3-86648-635-5
    Series Statement: World ocean review 6
    URL: https://worldoceanreview.com/wp-content/downloads/wor6/WOR6_en.pdf
    Language: English
    Note: Contents Preface The Arctic and Antarctic – natural realms at the poles A brief history of the polar regions The human conquest of the polar regions Conclusion: The Arctic and Antarctic – two fundamentally different polar regions The polar regions as components of the global climate system Why it is so cold in the polar regions Ice floes, ice sheets and the sea Conclusion: A chain reaction with an icy end Climate change impacts in the polar regions The pathways of heat Retreating ice Conclusion: More heat – much less ice Polar flora and fauna Living in the cold Marine life Polar ecosystems in retreat Conclusion: Highly specialized and greatly threatened Polar politics and commerce The Arctic and Antarctic as political arenas An economic boom with side effects Conclusion: Growing interest in the polar regions Overall Conclusion Glossary Abbreviations Bibliography Contributors Index Partners and Acknowledgements Table of figures Publication details
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