ALBERT

Note: Inhalt: Einleitung. - Meeresforschung in der deutschen Nordsee : über Tradition, Beharrlichkeit und Exzellenz. - Gezeiten : ausgewählte Ereignisse. - Themen & Texte. - Die stille Frühgeschichte der Biologischen Anstalt Helgoland : über ihre Entstehung 1892 und über die Wiederaufnahme ihrer Arbeit 1945 / Christian Salewski. - Wassereimer mit wundersamen Kleinstlebewesen : die Wiege der Meeresforschung auf Helgoland / Karen H. Wiltshire und Peter Lemke. - Lebensgemeinschaften erforschen : Karl August Möbius und die Austernbänke / Christian Buschbaum. - "Da muss man tauchen" : die Erfassung der untermeerischen Algenvegetation / Klaus Lüning. - Forschung im Wandel : von Organismen zu Ökosystemen / Maarten Boersma. - Otto Kinne : Direktor der Biologischen Anstalt Helgoland von 1962-1984 / Karen H. Wiltshire. - Ein persönlicher Rückblick : von einer kleinen Feldstation zum Wissenschaftsbetrieb / Harald Asmus und Ragnhild Asmus. - Gerhard Drebes : Experte für marines Phytoplankton / Kerstin Mölter. - Gastliche Häuser : Gestern und Heute / Gotthilf Hempel. - Die Biologische Anstalt Helgoland und ihr Anschluss an das AWI / Jörn Thiede und Rainer Paulenz. - Jubiläumsgemälde / Lionel Playford. - Zahlen & Daten / Karen H. Wiltshire und Kerstin Mölter. - Von "Alte Post" bis "Bluehouse" : Stationsgebäude im Wandel der Zeit. - Entwicklungsgrade° : eine Zeitreihe. - Prägende Persönlichkeiten. - Forschungsflotte. - Literatur. - Fotonachweise, Impressum.

Note: Contents: Preface. - Chapter 1: Overview of modern and Quaternary vegetation in China. - 1.1 Northwest region / Tang Lingyu and Shen Caiming. - 1.1.1 Overview of modern vegetation. - 1.1.1.1 Gobi desert and desert vegetation in eastern Xinjiang. - 1.1.1.2 Extremely arid desert and shrubland vegetation in the Qaidam Basin. - 1.1.1.3 Arid desert shrub and semi-shrub vegetation in the Hexi Corridor. - 1.1.1.4 Sylvosteppe or pine-oak forest in the transitional region between semi-humid and semi-arid monsoonal climate of temperate zone in the Loess Plateau. - 1.1.2 Overview of Quaternary vegetation. - 1.1.2.1 Vegetation and environment since the early Pleistocene in Qinghai. - 1.1.2.2 Holocene vegetation succession of steppe/meadow in north Xizang (Tibet). - 1.1.2.3 Vegetation and environment since the late Pleistocene in the Loess Plateau. - 1.1.2.4 Vegetation and environment since the early Pleistocene in Xinjiang. - 1.2 Northern region / Tang Lingyu and Li Chunhai. - 1.2.1 Overview of modern vegetation. - 1.2.1.1 Coniferous and broadleaved forest and meadow of temperate zone in Northeast China. - 1.2.1.2 Oak forest of river valley, Chinese pine forest, and shrub steppe in the lower valley of Liaohe River, North China plain, southern Shanxi, and central Shaanxi plain. - 1.2.2 Overview of Quaternary vegetation. - 1.2.2.1 Vegetation and environment since the early Pleistocene in North China. - 1.2.2.2 Vegetation and environment since the early Pleistocene in Northeast China. - 1.3 Southeast region / Shu Junwu and Tang Lingyu. - 1.3.1 Overview of modern vegetation. - 1.3.2 Overview of Quaternary vegetation. - 1.3.2.1 Vegetation succession since the mid-Pleistocene in Hubei. - 1.3.2.2 Vegetation and environment since the late Pleistocene in the lower valley of the Yangtze River. - 1.3 .2.3 Forest succession since the last glaciation in southeast coast of Fujian. - 1.3.2.4 Vegetation and environment since the late Pleistocene in the central Taiwan. - 1.4 South region / Mao Limi, Tang Lingyu and Shen Cairning. - 1.4.1 Overview of modern vegetation. - 1.4.1.1 Vegetation in the southern zone of middle subtropical evergreen broadleaved forest. - 1.4.1.2 Vegetation in the zone of south subtropical evergreen broadleaved forest. - 1.4.1.3 Tropical semi-evergreen monsoonal forest and tropical monsoonal forest. - 1.4.2 Overview of Quaternary vegetation. - 1.4.2.1 Vegetation in the Zhujiang delta and Chaozhou plain since the Pleistocene recorded by pollen and spores. - 1.4.2.2 Vegetation and climate since the late Pleistocene in Leizhou Peninsula and Holocene vegetation and climate in Hainan Island. - 1.4.2.3 Late Quaternary pollen and spores, vegetation and climate records in the South. - 1.4.2.4 Vegetation and climate since the late Pleistocene in Hong Kong. - 1.5 Southwest region / Shu Junwu, Tang Lingyu and Shen Caiming. - 1.5.1 Overview of modern vegetation. - 1.5.1.1 Vegetation of evergreen broadleaved forest in the Yunnan , Guizhou and western Sichuan Plateau. - 1.5.1.2 Vegetation of coniferous forest in southeast Xizang. - 1.5.2 Overview of Quaternary vegetation. - 1.5.2.1 Holocene vegetation in northwest Yunnan. - 1.5.2.2 Vegetation and monsoonal climate history since the late Pleistocene in western and south-central Yunnan. - 1.5.2.3 Holocene vegetation in western Sichuan. - 1.5.2.4 Vegetation and environment since the late Pleistocene in Guizhou. - 1.5.2.5 Vegetation and monsoonal climate history since the late Pleistocene in southeastern Xizang. - Chapter 2 Main types of Quaternary pollen and spores and their characteristics in different regions of China. - 2.1 Northwest region / Tang Lingyu and Mao Limi. - 2.1.1 Types of Quaternary pollen and spores in Northwest China. - 2.1.2 Identifiable features of major Quaternary pollen and spores in Northwest China. - 2.1.2.1 Identifiable features of main Compositae pollen types. - 2.1.2.2 Identifiable features of Artemisia, Tamarix, and Zygophyllum pollen. - 2.1.2.3 Identifiable features of Rhamnus, Hippophae, and Elaeagnus pollen. - 2.1.3 Descriptions of morphological features for major Quaternary spores and pollen in Northwest China. - 2.1.3.1 Photomicrographs for major Quaternary pollen types in Northwest China. - 2.1.3.2 Descriptions of morphological features for major Quaternary pollen types in Northwest China. - 2.2 Northern region / Tang Lingyu. - 2.2.1 Types of Quaternary pollen and spores in Northern China. - 2.2.2 Identifiable features of major Quaternary pollen and spores in Northern China. - 2.2.2.1 Identification keys of pollen morphology for several saccate genera of Pinaceae. - 2.2.2.2 Identifiable features of pollen morphology for genera of Betulaceae. - 2.2.2.3 Identifiable features of tricolpate pollen from Salix and Cruciferae. - 2.2.2.4 Identifiable features of tricolpate pollen from Ranunculaceae and Labiatae. - 2.2.3 Descriptions of morphological features for major Quaternary spores and pollen in Northern China. - 2.2.3.1 Photomicrographs for major Quaternary pollen types in Northern China. - 2.2.3.2 Descriptions of morphological features for major Quaternary pollen types in Northern China. - 2.3 Southeast region / Tang Lingyu and Shu Junwu. - 2.3.1 Types of Quaternary pollen and spores in Southeast China. - 2.3.2 Identifiable features of major Quaternary pollen and spores in Southeast China. - 2.3.2.1 Identifiable features of pollen morphology for Fagaceae. - 2.3.2.2 Identification keys of pollen morphology for several genera of Fagaceae. - 2.3.2.3 Identifiable features of pollen morphology for several genera of Fagaceae. - 2.3.2.4 Identifiable features of pollen morphology for several genera of tropical and subtropical. - 2.3.3 Descriptions of morphological features for major Quaternary pollen and spores in Southeast China. - 2.3.3.1 Photomicrographs for major Quaternary pollen types in Southeast China. - 2.3.3.2 Descriptions of morphological features for major Quaternary pollen types in Southeast China. - 2.4 South region / Mao Limi and Tang Lingyu. - 2.4.1 Types of Quaternary pollen and spores in South China. - 2.4.2 Identifiable features of main Quaternary pollen and spores in South China. - 2.4.2.1 Modern distribution and paleophytogeography of Sonneratia and its identifiable features of pollen morphology. - 2.4.2.2 Modern distribution and paleoecology significance of Rhizophoraceae and its identifiable features of pollen morphology. - 2.4.3 Photomicrographs and descriptions of morphological features for major Quaternary pollen and spores in South China. - 2.4.3.1 Photomicrographs for major Quaternary pollen and spores in South China. - 2.4.3.2 Descriptions of morphological features for major Quaternary pollen and spores in South China. - 2.5 Southwest region / Tang Lingyu and Shu Junwu. - 2.5.1 Types of Quaternary pollen and spores in Southwest China. - 2.5.2 Identifiable feature of main Quaternary pollen and spores in Southwest China. - 2.5.2.1 Plant distribution and pollen features of Pinaceae in Southwest China. - 2.5.2.2 Identification keys of pollen morphology for Pinaceae. - 2.5.3 Descriptions of morphological features for major Quaternary pollen and spores in Southwest China. - 2.5.3.1 Photomicrographs for common pollen in Southwest China. - 2.5.3.2 Descriptions of morphological features for major Quaternary pollen and spores in Southwest China. - Chapter 3 Plates and descriptions of Quaternary pollen and spores in different region of China. - 3.1 Northwest region / Tang Lingyu and Mao Limi. - Spores of the pteridophyte Plates 1-3. - Gymnosperm pollen Plates 3-10. - Angiosperm pollen Plates 11-63. - 3.2 Northern region / Tang Lingyu and Li Chunhai. - Spores of the algae Plates 1-3. - Spores of the bryophyte Plate 4. - Spores of the pteridophyte Plates 5-9. - Gymnosperm pollen Plates 9-24. - Angiosperm pollen Plates 25-63. - 3.3 Southeast region / Tang Lingyu, Zhou Zhongze and

Note: Contents: Preface. - Acknowledgements. - 1 Introduction. - 1.1 Origin and characters of silicon and its isotopes. - 1.2 A brief description of silicon geochemistry. - 1.3 The history of silicon isotope studies. - 2 Analytical methods of silicon isotope composition. - 2.1 Gas source isotope ratio mass spectrometric analysis of silicon isotopes. - 2.2 Multi-collector inductively coupled plasma mass spectrometric (MC-ICPMS) analysis of silicon isotopes. - 2.3 Secondary ion mass spectrometry analyses. - 2.4 Standards and reference materials for silicon isotope measurement. - 2.5 Comparison of different methods on silicon isotope analyses. - 3 Mechanisms of silicon isotope fractionation. - 3.1 The thermodynamic silicon isotope exchange fractionation. - 3.2 Kinetic fractionation of silicon isotopes. - 4 Distribution of silicon isotopes in nature. - 4.1 Silicon isotope compositions of extraterrestrial materials. - 4.2 Silicon isotope distribution in lithosphere. - 4.3 Silicon isotope compositions of soils. - 4.4 Hydrosphere. - 4.5 Biosphere. - 5 Several aspects of silicon isotope applications. - 5.1 Studies on global silicon cycle. - 5.2 Silicon isotope studies on environmental variation of ocean. - 5.3 Studies on mechanisms of absorption, transportation and precipitation of silicon in plant growth processes. - 5.4 Studies on silicon source and genesis of ore deposits. - References. - Index.

Note: Content: Preface. - 1 IASC Internal Development. - IASC Organization. - IASC Council . - IASC Executive Committee. - IASC Secretariat. - Allen Pope New IASC Executive Secretary. - IASC Secretariat Moves to Iceland. - IASC Future Strategy. - IASC Medal 2017. - 2 IASC Working Groups. - Cross-Cutting Initiatives. - Atmosphere Working Group (AWG). - Cryosphere Working Group (CWG). - Marine Working Group (MWG). - Social and Human Working Group (SHWG). - Terrestrial Working Group (TWG). - 3 Arctic Science Summit Week 2016. - Upcoming ASSWs. - 4 Data and Observations. - Arctic Data Committee (ADC). - Sustaining Arctic Observing Networks (SAON). - 5 Partnerships. - Asian Forum for Polar Sciences (AFoPS). - Arctic Council. - 6 Capacity Building. - IASC Fellowship Program. - Overview of Supported Early Career Scientists. - Annex. - Polar Acronyms.

Note: Inhaltsverzeichnis Lyngen-Alpen und Bergland von Kåfjord und Storfjord / Karl-Dieter Meier. - Bemerkungen zur glaziären und periglaziären Landschaftsformung in den Lyngen-Alpen (Lyngen Halbinsel) und im Bergland von Kåfjord und Storfjord, Norwegisch Lappland, mit ausgewählten themenbezogenen Wanderexkursionen. - 1. Einführung. - 2. Physiogeographische Charakteristik der Lyngen-Alpen und des Berglandes von Kåfjord und Storfjord. - 2.1. Relief. - 2.2. Geologisch-tektonischer Bau, Festgesteine. - 2.3. Lockersedimente. - 2.4. Klima. - 2.5. Vegetation. - 3. Glaziäre Formung. - 3.1. Vergletscherungsgeschichte bis zur "Kleinen Eiszeit". - 3.2. Neuzeitliche Vergletscherung und aktuelle Gletscherdynamik. - 3.3. Zusammenhänge zwischen Gletscher- und Klimaschwankungen. - 4. Periglaziäre Formung. - 4.1. Permafrosterscheinungen und -indikatoren. - 4.2. Räumliche Verbreitung des Permafrostbodens. - 4.3. Periglaziäre Formen und Ablagerungen (ohne Permafrostboden). - 4.3.1. Blockfelder. - 4.3 .2. Sturzschutthalden und -kegel. - 4.3.3. Gelisolifluktionserscheinungen und -formen. - 4.3.4. Frostmusterböden. - 5. Exkursionsvorschläge zur glaziären und periglaziären Landschaftsformung. - 5.1. Anfahrt und Logistik. - 5.2. Fahrstrecken und Wanderexkursionen. - 5.2.1. Fornesdal - Rypedalsvatn (ca. 20 km). - 5.2.2. Fugldal - Fugldalsvatn (ca. 12 km). - 5.2.3. Goverdal - Sörvestbre- Rundvatn (ca. 17 km). - 5.2.4. Slettmo- Sörellendal (ca. 12 km). - 5.2.5. Steindal- Nallannjunni - Steindalsbre (ca. 15 km). - 5.2.6. Lyngsdal - Dalbotn - Vest- / Midt- / Sydbre (ca. 20 km). - 5.2.7. Koppangsdal - Koppangsbre (ca. 6 km). - 5.2.8. Tyttebaerdal - Brevatn - Stortinddalsbre (ca. 20 km). - 5.2.9. Bensnes - Trollvatn (ca. 10 km). - 5.2.10. Sörlenangsbotn - unteres Strupskarddal - Blåvatn- oberes Strupskarddal - Strupvatn - Strupbre (ca. 24 km). - 5.2.11. Veidal - Olderelvvatn - Veidalsvatn (ca. 12 km). - 5.2.12. Indre Nordmannvika - Nordmannvikdal - Nordmannviktind (See 549 m ü. Mo) - Jovnnacahca- Sannjariehppi - Gauknes - Kippeldal (ca. 23 km). - 5.2.13. Skarvdal - Kopperlia - Bievlajavri - Moldojokkadal - Bievlavarri ( ca. 22 km). - 6. Ergebnisse, Schlussfolgerungen und Ausblick. - 7. Literaturverzeichnis. - 8. Kartenverzeichnis. - 8.1. Quartärgeologische Karten. - 8.2. Karten der Festgesteine. - 8.3. Topographische Karten. - 9. Luftbildverzeichnis. , Inhaltsverzeichnis westliche Finnmarksvidda / Karl-Dieter Meier und Dietbert Thannheiser. - Eine Exkursion zur kaltklimatischen quartären Landschaftsformung auf der westlichen Finnmarksvidda, Norwegisch Lappland. - 1. Einführung. - 2. Physiogeographische Charakteristik. - 2.1. Relief und Gewässernetz. - 2.2. Geologisch-tektonischer Bau und Lockersedimente. - 2.3. Klima und Permafrostboden. - 2.4. Vegetation und Böden. - 3. Exkursion über die Finnmarksvidda-Hochfläche. - 3.1. Wissenschaftlicher Hintergrund. - 3.2. Streckenverlauf und Logistik. - 3.3. Streckenbeschreibung. - 3.3.1. Alta - Skillemo. - 3.3.2. Skillemo - Gargia - Beskades - Solovorni. - 3.3.3. Skillemo - Trangdalen - Avzejavri - Solovorni (Alternativstrecke). - 3.3.4. Solovorni - Masi. - 3.3.5. Masi - Gievdneguoika. - 3.3.6. Gievdneguoika - Kautokeino. - 3.3.7. Kautokeino - Avze - Kivijärvi. - 4. Schlussfolgerungen. - 5. Literatur. - 6. Geologische und geomorphologische Karten. - 7. Topographische Karten.

Note: Inhaltsverzeichnis: Vorwort. - Einleitung. - 1. Strategische Ziele der Arktisforschung. - 2. Die zentralen Fragen der Arktisforschung. - 2.1. Vergangenheit, Gegenwart und Zukunft des Klimawandels in der Arktis. - 2.2. Beitrag des grönländischen Inlandeises zur Meeresspiegelerhöhung. - 2.3. Rückgang des arktischen Meereises. - 2.4. Permafrost und Gashydrate als unbekannte Größen im Klimasystem. - 2.5. Anpassung polarer Organismen an die arktische Umwelt im Wandel. - 2.6. Chancen und Risiken zunehmender wirtschaftlicher Nutzung der Arktis. - 3. Stand der deutschen Polarforschung. - 3.1. Partner der deutschen Arktisforschung. - 3.2. Regionale Schwerpunkte der deutschen Arktisforschung. - 3.3. Positionierung im internationalen Umfeld. - 4. Umsetzung der Arktisforschungsstrategie. - 4.1. Forschung für Nachhaltigkeit. - 4.2. Wissenstransfer in die Gesellschaft. - 4.3. Technologietransfer. - 4.4. Nachwuchsförderung. - Anmerkungen. - Impressum.

Note: Contents: Preface to Fourth Edition. - Preface to Third Edition. - Preface to Second Edition. - Preface to First Edition. - Acknowledgments. - PART I THE PERIGLACIAL DOMAIN. - 1 Introduction. - 1.1 The Periglacial Concept. - 1.2 Diagnostic Criteria. - 1.3 Periglacial Environments. - 1.4 The Periglacial Domain. - 1.5 The Periglacial Domain and the Cryosphere. - 1.6 Disciplinary Considerations. - 1.6.1 The Growth of Geocryology. - 1.6.2 The Challenge of Quaternary Science. - 1.6.3 Periglacial Geomorphology or Cold-Region Geomorphology?. - 1.7 Societal Considerations. - 1.8 The Growth of Periglacial Knowledge. - 2 Periglacial Climates. - 2.1 Boundary Conditions. - 2.2 Cold Deserts. - 2.3 Regional Climates. - 2.3.1 High Arctic Climates. - 2.3.2 Continental Climates. - 2.3.3 Alpine Climates. - 2.3.4 Montane Climates. - 2.3.5 Climates of Low Annual Temperature Range. - 2.3.6 Antarctica: A Special Case. - 2.4 Snow and Ice. - 2.5 Wind. - 2.6 Ground Climates. - 2.6.1 The 'n'-Factor. - 2.6.2 The Thermal Offset. - 2.6.3 The Ground Temperature Regime. - 2.7 Periglacial Climates and Global Climate Change. - 2.7.1 Basic Facts. - 2.7.2 Why Climate-Cryosphere Interactions Accelerate Climate Warming. - 3 Periglacial Ecosystems. - 3.1 General Statement. - 3.2 Biogeographic Zonation and Major Vegetation Types. - 3.3 Adaptations to Cold, Snow, Wind and Aridity. - 3.4 The Effect of Vegetation. - 3.5 The Polar Deserts. - 3.5.1 The High Arctic Polar Deserts. - 3.5.2 The High Arctic Polar Semi-Deserts. - 3.6 The Polar Desert-Tundra Transition. - 3.7 The Low-Arctic Tundra. - 3.8 The Forest-Tundra Bioclimatic Boundary (The Tree Line). - 3.9 The Boreal Forest. - 3.10 The Alpine and Montane Ecosystems. - 3.11 Antarctica - A Special Case. - 3.12 Periglacial Ecosystems and Climate Change. - PART II FROZEN GROUND AND PERMAFROST. - 4 Ground Freezing, Permafrost and the Active Layer. - 4.1 Introduction. - 4.2 Ground Freezing. - 4.2.1 Basic Concepts. - 4.2.2 Ice Segregation. - 4.2.3 "The Frozen Fringe'. - 4.2.4 Frost Heave. - 4.3 Perennially-Frozen Ground (Permafrost). - 4.4 Moisture and Ice Within Permafrost. - 4.5 Thermal and Physical Properties. - 4.5.1 The Geothermal Regime. - 4.5.2 The TTOP Model. - 4.5.3 Physical Properties. - 4.5.4 Thermal Properties. - 4.6 Permafrost Hydrology. - 4.6.1 Aquifers. - 4.6.2 Hydrochemistry. - 4.6.3 Groundwater Icings. - 4.7 The Active Layer. - 4.7.1 Terminology. - 4.7.2 The Active-Layer Thermal Regime. - 4.7.3 The Transient Layer. - 4.7.4 The Stefan Equation. - 5 Permafrost Distribution and Stability. - 5.1 Introduction. - 5.2 Controls over Permafrost Distribution. - 5.2.1 Relief and Aspect. - 5.2.2 Rock Type. - 5.2.3 Vegetation. - 5.2.4 Snow Cover. - 5.2.5 Fire. - 5.2.6 Lakes and Surface Water Bodies. - 5.3 Spatial Extent of Permafrost and Frozen Ground. - 5.3.1 Latitudinal Permafrost. - 5.3.2 Alpine (Mountain) Permafrost. - 5.3.3 Montane Permafrost. - 5.3.4 Seasonally-Frozen Ground. - 5.4 Sub-Sea and Relict Permafrost. - 5.4.1 Sub-Sea Permafrost. - 5.4.2 Relict (Terrestrial) Permafrost. - 5.5 Permafrost and Ecosystems. - 5.6 Permafrost Monitoring and Mapping. - 5.6.1 CALM and GTN-P (TSP). - 5.6.2 BTS and Mountain Permafrost Probability Mapping. - 5.7 Climate Warming and Permafrost. - 5.7.1 Evidence for Warming Permafrost. - 5.7.2 Evidence for Thawing Permafrost. - 6 Ground Ice and Cryostratigraphy. - 6.1 Introduction. - 6.2 Quantitative Parameters. - 6.3 Epigenetic, Syngenetic and Polygenetic Permafrost. - 6.4 Classification. - 6.4.1 The Russian Approach. - 6.4.2 The North American Approach. - 6.5 Main Ground Ice Types. - 6.5.1 Pore Ice. - 6.5.2 Segregated Ice. - 6.5.3 Intrusive Ice. - 6.5.4 Vein Ice. - 6.5.5 Other Types of Ice. - 6.6 Ice Distribution. - 6.6.1 Amounts. - 6.6.2 Distribution with Depth. - 6.6.3 Ice in Bedrock. - 6.6.4 Ice in Poorly-Lithified Sediments. - 6.7 Cryostratigraphy and Cryolithology. - 6.7.1 Cryostructural Analysis. - 6.7.2 Cryostructures of Epigenetic and Syngenetic Permafrost. - 6.7.3 Thaw Unconformities. - 6.7.4 Aggradational Ice. - 6.7.5 Icy Bodies and Ice, Sand and Soil Pseudomorphs. - 6.8 Ice Crystallography. - 6.9 Ice Geochemistry. - 6.10 Massive Ice and Massive-Icy Bodies. - 6.10.1 Nature and Extent. - 6.10.2 Intra-Sedimental Ice. - 6.10.3 Buried Glacier Ice. - 6.11 Cryostratigraphy and Past Environments. - 7 Aggradational Permafrost Landforms. - 7.1 Introduction. - 7.2 How Does Permafrost Aggrade?. - 7.2.1 The Illisarvik Drained-Lake Experiment. - 7.3 Thermal-Contraction-Crack Polygons. - 7.3.1 Coefficients of Thermal Expansion and Contraction. - 7.3.2 Ice, Sand and Soil ('Ground') Wedges. - 7.3.3 Development of the Polygon Net. - 7.3.4 Polygon Morphology. - 7.3.5 Controls over Cracking. - 7.3.6 Climatic Significance. - 7.4 Ice and Sand Wedges. - 7.4.1 Epigenetic Wedges. - 7.4.2 Syngenetic Wedges. - 7.4.3 Anti-Syngenetic Wedges. - 7.4.4 Growth and Deformation of Wedges. - 7.5 Organic Terrain. - 7.5.1 Palsas. - 7.5.2 Peat Plateaus. - 7.6 Frost Mounds. - 7.6.1 Perennial-Frost Mounds. - 7.6.2 Hydraulic (Open) System Pingos. - 7.6.3 Hydrostatic (Closed) System Pingos. - 7.6.4 Other Perennial-Frost Mounds. - 7.6.5 Seasonal-Frost Mounds. - 7.6.6 Hydrolaccoliths and Other Frost-Induced Mounds. - 8 Thermokarst Processes and Landforms. - 8.1 Introduction. - 8.2 Thawing Ground. - 8.2.1 Thaw Strain and Thaw Settlement. - 8.2.2 Potential Depths of Soil Freezing and Thawing. - 8.2.3 The Development of Thermokarst. - 8.3 Causes of Thermokarst. - 8.3.1 General Comments. - 8.3.2 Specific Causes. - 8.4 Thaw-Related Processes. - 8.4.1 Thermokarst Subsidence (Thaw Settlement). - 8.4.2 Thermal Erosion. - 8.4.3 Other Processes. - 8.5 Thermokarst Sediments and Structures. - 8.5.1 Involuted Structures. - 8.5.2 Retrogressive-Thaw-Slumps and Debris-Flow Deposits. - 8.5.3 Ice-Wedge Pseudomorphs and Composite-Wedge Casts. - 8.5.4 Ice, Silt, Sand and Gravel Pseudomorphs. - 8.6 Thermokarst Landscapes. - 8.6.1 The Alas-Thermokarst Relief of Central Yakutia. - 8.6.2 The Western North American Arctic. - 8.6.3 The Ice-Free Areas of Continental Antarctica. - 8.7 Ice-Wedge Thermokarst Relief. - 8.7.1 Low-Centred Polygons. - 8.7.2 High-Centred Polygons. - 8.7.3 Badland Thermokarst Relief. - 8.8 Thaw Lakes and Depressions. - 8.8.1 Lakes and Taliks. - 8.8.2 Morphology. - 8.8.3 Growth and Drainage. - 8.8.4 Oriented Thaw Lakes. - Part III Periglacial Geomorphology. - 9 Cold-Climate Weathering. - 9.1 Introduction. - 9.2 General Weathering Facts. - 9.3 Freezing and Thawing Indices. - 9.4 Rock (Frost?) Shattering. - 9.4.1 Frost Action and Ice Segregation. - 9.4.2 Insolation and Thermal Shock. - 9.4.3 Perspective. - 9.5 Chemical Weathering. - 9.5.1 Karkevagge. - 9.5.2 Solution and Karstification. - 9.5.3 Salt Weathering. - 9.6 Cryogenic Weathering. - 9.6.1 Cryogenic Disintegration. - 9.6.2 The Coefficient of Cryogenic Contrast. - 9.6.3 Physico-Chemical Changes. - 9.6.4 Problematic Phenomena. - 9.7 Cryobiological Weathering. - 9.8 Rates of Cold-Climate Bedrock Weathering. - 9.9 Cryosols and Cryopedology. - 9.9.1 Cryosols. - 9.9.2 Classification. - 9.9.3 Cryosolic Micromorphology. - 10 Mass-Wasting Processes and Active-Layer Phenomena. - 10.1 Introduction. - 10.2 Slow Mass-Wasting Processes. - 10.2.1 Solifluction. - 10.2.2 Frost Creep. - 10.2.3 Gelifluction. - 10.2.4 Solifluction Deposits and Phenomena. - 10.3 Rapid Mass-Wasting Processes. - 10.3.1 Active-Layer-Detachment Slides. - 10.3.2 Debris Flows, Slush Flows and Avalanches. - 10.3.3 Rockfall. - 10.4 Snow Hydrology and Slopewash Processes. - 10.4.1 Snow Hydrology and Snowbanks. - 10.4.2 Surface and Subsurface Wash. - 10.5 Active-Layer Phenomena. - 10.5.1 Frost Heaving. - 10.5.2 Bedrock Heave. - 10.5.3 Upward Heaving of Stones and Objects. - 10.5.4 Stone Tilting. - 10.5.5 Ne

Note: Enthält 5 Publikationen: 1) Mid Wisconsin to Holocene permafrost and landscape dynamics based on a drained lake basin core from the northern Seward Peninsula, northwest Alaska / Josefine Lenz, Guido Grosse, Benjamin M. Jones [und 5 weitere] 2) Evidence of multiple thermokarst lake generations from an 11,800-year old permafrost core on the northern Seward Peninsula, Alaska / Josefine Lenz, Sebastian Wetterich, Benjamin M. Jones [und 3 weitere] 3) Impacts of shore expansion and catchment characteristics on lacustrine thermokarst records in permafrost lowlands, Alaska Arctic Coastal Plain / Josefine Lenz, Sebastian Wetterich, Benjamin M. Jones [und 5 weitere] 4) Periglacial landscape dynamics in the western Canadian Arctic: Results from a thermokarst lake record on a push moraine (Herschel Island, Yukon) / Josefine Lenz, Michael Fritz, Lutz Schirrmeister [und 4 weitere] 5) Regional environmental change versus local signal preservation in Holocene thermokarst lake sediments: A case study from Herschel Island, Yukon (Canada) / Michael Fritz, Ingmar Unkel, Josefine Lenz [und 6 weitere] , Table of contents Abstract Zusammenfassung Abbreviations and nomenclature 1 Thesis organization 1.1 Overview of chapters 1.2 Author contribution 2 Introduction 2.1 Scientific background 2.1.1 Arctic environments and permafrost in the study region of Beringia 2.1.2 Permafrost degradation and its global feedbacks 2.1.3 Thermokarst lakes and basins as paleoenvironmental archives 2.2 Aims and approaches 3 Mid Wisconsin to Holocene permafrost and landscape dynamics based on a drained lake basin core from the northern Seward Peninsula, northwest Alaska 3.1 Abstract 3.2 Introduction 3.3 Study area 3.4 Material and methods 3.5 Results 3.5.1 Core stratigraphy 3.5.2 Cryostratigraphy 3.5.3 Grain size distribution 3.5.4 Magnetic susceptibility 3.5.5 Biogeochemical characteristics 3.5.6 Tephra 3.5.7 Palaeoecology 3.5.8 Geochronology 3.6 Discussion 3.7 Conclusions 4 Evidence of multiple thermokarst lake generations from an 11,800-year old permafrost core on the northern Seward Peninsula, Alaska 4.1 Abstract 4.2 Introduction 4.3 Study area 4.4 Material and methods 4.5 Results 4.5.1 Geochronology 4.5.2 Cryolithological description 4.5.3 Geochemical results 4.5.4 Bioindicators 4.5.5 Characteristics of intra-sedimentary ice and comparison with modern waters 4.6 Discussion 4.6.1 Thermokarst lake dynamics 4.6.2 Regional lake dynamics and global environmental change 4.6.3 Carbon cycling 4.7 Conclusions 5 Impacts of shore expansion and catchment characteristics on lacustrine thermokarst records in permafrost lowlands, Alaska Arctic Coastal Plain 5.1 Abstract 5.2 Introduction 5.3 Study area 5.4 Material and methods 5.5 Results 5.5.1 Sedimentological results of near-shore core P1 5.5.2 Sedimentological and palynological results of lake center-cores P2 (and P3) 5.5.3 Lake age estimation 5.6 Discussion 5.6.1 Thermokarst lake development 5.6.2 Impact of catchment genesis and morphology on the lake sediment record 5.6.3 Carbon degradation 5.7 Conclusions 6 Synthesis 6.1 Study sites in central-eastern Beringia: Similarities and differences 6.2 Permafrost degradation and thermokarst development in central-eastern Beringia 6.2.1 Timing of thermokarst development 6.2.2 Environmental factors supporting and inhibiting thermokarst 6.3 Processes of thermokarst lake development and their imprint in proxy records 6.4 Contribution of thermokarst dynamics to the carbon cycle 6.5 Potentials/limitations of thermokarst lake archives and outlook Bibliography Appendix I: Periglacial landscape dynamics in the western Canadian Arctic: Results from a thermokarst lake record on a push moraine (Herschel Island, Yukon) I-1 Abstract I-2 Introduction I-3 Study area I-4 Material and methods I-5 Results I-5.1 Core lithology I-5.2 Radiography I-5.3 Magnetic susceptibility and water content I-5.4 Grain size distribution I-5.5 Biogeochemical characteristics I-5.6 Geochronology I-6 Discussion I-6.1 Evolution of Lake Herschel I-6.2 Paleoenvironmental implications of the Lake Herschel record I-7 Conclusions Appendix II: Regional environmental change versus local signal preservation in Holocene thermokarst lake sediments: A case study from Herschel Island, Yukon (Canada) II-1 Abstract II-2 Introduction and study area II-3 Material and methods II-3.1 Sediment core II-3.2 Radiocarbon dating and age modelling II-3.3 Pore-water chemistry II-3.4 X-ray fluorescence (XRF) scanning II-3.5 Micropaleontology II-4 Results II-4.1 Chronostratigraphy: The revised age model II-4.2 XRF chemistry II-4.3 Pore-water chemistry II-4.4 Calcareous microfossils II-4.5 Pollen II-5 Discussion II-5.1 Sedimentation history of Lake Herschel II-5.2 Limnological, sedimentary and geochemical properties predefine the habitat I-5.3 Autochthonous versus allochthonous deposition of calcareous microfossils II-5.4 Regional pollen-based reconstruction of vegetation and climate II-6 Conclusions Acknowledgements

Note: Inhalt Vorwort „Zu diesem Heft“ / B. BRÜMMER 1. Athmosphärische Bedingungen und Energiehaushalt der Arktis im Jahresgang / B. BRÜMMER 2. Regionale und globale Wechselwirkung zwischen arktischem Meereis und der atmosphärischen Zirkulation / K. DETHLOFF, A. RINKE, D. HANDORF, R. JAISER, W. DORN, A. SOMMERFELD 3. Arktische Verstärkung und Wolken / M. WENDISCH, A. EHRLICH 4. Arktische Zyklonen: Häufigkeit und Wirkung auf das Meereis / B. BRÜMMER 5. Polare Kaltluftausbrüche / M. GRYSCHKA 6. Arktische Polynjen / S. WILLMES, G. HEINEMANN, A. PREUSSER 7. Turbulente Energie- und Impulsflüsse in der atmosphärischen Grenzschicht über dem polaren Ozean / C. LÜPKES, A. SCHMITT, V. GRYANIK 8 Der katabatische Wind über Grönland / G. HEINEMANN Buchbesprechung Examina im Jahr 2017

Note: Contents Preface Introduction Helgoland - Treasure trove of species Sylt - Changing tidal flats in a world heritage site Polar Regions - key areas for climate processes Plankton à la carte Plankton and the "extra portion" Forwards, but backwards into the past North Sea in the fast lane of change Vibrios like it hot Detective work in the microcosm Melting glaciers and turbid waters Thawing permafrost comes alive Arctic coasts in retreat A stroll through the underwater forest Mathematical evaluation of the tidal flat menu Let's dive in! Research scientists pay a visit Marine research goes on TV Meeting public needs: Advice and support

Note: Table of contents Abstract Zusammenfassung 1 Motivation 2 Introduction 2.1 Arctic climate changes and their impacts on Coastal processes 2.2 Shoreline retreat along Arctic coasts 2.3 Impacts of Coastal erosion 2.3.1 Material fluxes 2.3.2 Retrogressive thaw slumps 2.3.3 Socio-economic impacts 2.4 Objectives 2.5 Study area 2.6 Thesis structure 2.7 Authors’ contributions 3 Variability in rates of Coastal change along the Yukon coast, 1951 to 2015 3.1 Introduction 3.2 Study Area 3.3 Data and Methods 3.3.1 Remote sensing data 3.3.2 Field survey data 3.3.3 Classification of shoreline 3.3.4 Transect-wise analyses of shoreline movements through time 3.4 Results 3.4.1 Temporal variations in shoreline change rates 3.4.2 Alongshore rates of change 3.4.3 Shoreline dynamics along field sites 3.4.4 Dynamics of lagoons, barrier Islands and spits (gravel features) 3.4.5 Yukon Territory land loss 3.5 Discussion 3.5.1 Temporal variations in shoreline change rates 3.5.2 Alongshore rates of change 3.5.3 Dynamics of lagoons, barrier Islands, and spits (gravel features) 3.5.4 Expected shoreline changes as a consequence of future climate warming 3.6 Conclusions Context 4 Coastal erosion of permafrost Solls along the Yukon Coastal Plain and Kuxes oforganic carbon to the Canadian Beaufort Sea 4.1 Introduction 4.2 Study Area 4.3 Methods 4.3.1 Sample collection and laboratory analyses 4.3.2 Soll organic carbon determinations 4.3.3 Flux of organic soil carbon and Sediments 4.3.4 Fate of the eroded soil organic carbon 4.4 Results 4.4.1 Ground lce 4.4.2 Organic carbon contents 4.4.3 Material fluxes 4.5 Discussion 4.5.1 Ground lce 4.5.2 Organic carbon contents 4.5.3 Material fluxes 4.5.4 Organic carbon in nearshore Sediments 4.6 Conclusion Context 5 Terrain Controls on the occurrence of Coastal retrogressive thaw slumpsalong the Yukon Coast, Canada 5.1 Introduction 5.2 Study Area 5.3 Methods 5.3.1 Mapping of RTSs and landform Classification 5.3.2 Environmental variables 5.3.3 Univariate regression trees 5.4 Results 5.4.1 Characteristics of RTS along the coast 5.4.2 Density and areal coverage od RTSs along the Yukon Coast 5.5 Discussion 5.5.1 Characteristics and distribution of RTSs along the Yukon Coast 5.5.2 Terrain factors explaining RTS occurrence 5.5.3 Coastal processes 5.6 Conclusions Context 6 Impacts of past and fiiture Coastal changes on the Yukon coast - threats forcultural sites, infrastructure and travel routes 6.1 Introduction 6.2 Study Area 6.3 Methods 6.3.1 Data for shoreline projections 6.3.2 Shoreline projection for the conservative scenario (S1) 6.3.3 Shoreline Projection for the dynamic scenario (S2) 6.3.4 Positioning and characterizing of cultural sites 6.3.5 Calculation of losses under the S1 and S2 scenarios 6.3.6 Estimation of future dynamics in very dynamic areas 6.4 Results and discussion 6.4.1 Past and future shoreline change rates 6.4.2 Cultural sites 6.4.3 Infrastructure and travel routes 6.5 Conclusions 7 Discussion 7.1 The importance of understanding climatic drivers of Coastal changes 7.2 The influence of shoreline change rates on retrogressive thaw slump activity 7.3 On the calculation of carbon fluxes from Coastal erosion along the Yukon coast 7.4 Impacts of present and future Coastal erosion on the natural and human environment 7.5 Synthesis 8 Summary and Conclusions Bibliography Supporting Material Data Set ds01 Table S1 Table S3 Abbreviations and Nomendature Acknowledgements

Note: CONTENTS ABOUT THE AUTHORS PREFACE FROM THE ASSOCIATION OF POLAR EARLY CAREER SCIENTISTS PREFACE FROM THE INTERACT STATION MANAGERS’ FORUM ABOUT INTERACT ABOUT APECS INTERACT STATIONS INTRODUCTION 1. Getting started – Outlining your field project 1.1 Scientific rationale and objectives 1.2 Methods and data requirements 1.3 What scientific equipment will you need? 1.4 Study site(s) 1.5 Risk assessment 1.5.1 Risk identification 1.5.2 Risk assessment 1.5.3 Risk mitigation 1.5.4 Contingency plans 1.6 Time schedules 1.6.1 Logistical organisation 1.6.2 Fieldwork activities 1.7 Project budget 1.8 Data and sample management 1.8.1 Data management plan 1.8.2 Sample labelling 1.8.3 Field instrumentation 1.9 Environmental compliance 1.10 Output Chapter resources 2. Further planning – Practicalities and legal issues 2.1 Applying for access to the station 2.2 Transport to the station and conditions for visiting 2.2.1 Access to the station 2.2.2 Conditions for visiting 2.3 Visas and permits required by national authorities 2.3.1 Visas 2.3.2 Permits 2.4 Working with local communities 2.5 Equipment transport 2.6 Checklists and equipment 2.6.1 Checklists 2.6.2 Personal clothing 2.7 Import and export regulations 2.7.1 Import and export permits 2.7.2 Transporting hazardous goods 2.7.3 Handling cooled and frozen materials 2.8 Insurance 2.9 Check-ups and chronical illness 2.10 Training activities 2.11 Financial and other administrative issues 2.12 Final checks before leaving Chapter resources 3. Safety 3.1 General safety guidelines 3.2 Safety barriers 3.2.1 Knowledge, experience, and skills 3.2.2 Attitude and culture 3.2.3 Judgement and leadership 3.2.4 Trip plan 3.3 Education and training 3.4 Health and first aid 3.4.1 Medicine and chronic illness 3.4.2 First aid 3.5 Transport 3.5.1 Aircraft 3.5.2 Boats 3.5.3 Snowmobiles 3.5.4 Vehicles (Automobiles and ATV’s) 3.6 Risks at the station 3.6.1 Fire 3.6.2 In the kitchen 3.6.3 Electricity 3.6.4 Hygiene 3.6.5 Laboratory work and chemicals 3.6.6 Workshops and equipment use 3.7 Risks in the field and at the camp 3.7.1 Field camps 3.7.2 Cooking and water treatment 3.7.3 Firearms 3.7.4 Extreme activities 3.8 Natural hazards 3.8.1 Weather change 3.8.2 Glacier fieldwork 3.8.3 Snow avalanches and cornice falls 3.8.4 Steep terrain: Rock avalanches, rock falls, and mud slides 3.8.5 Sea-ice or frozen lakes and rivers 3.8.6 River crossings 3.8.7 Wildlife 3.9 Means of communication 3.9.1 Fieldwork plans and sign in/out boards 3.9.2 Routine calls 3.9.3 Non-routine calls 3.9.4 Emergency calls 3.10 Safety equipment 3.10.1 Communication equipment 3.10.2 Navigation equipment 3.10.3 Clothing 3.10.4 Field camp equipment 3.10.5 Specific safety equipment 3.11 Emergency preparedness Chapter resources 4. Arrival at the station and your time in the field 4.1 Getting to know your team 4.2 Arrival at the station 4.3 Working at field sites 4.4 In case something does not go according to plan 4.4.1 Handling delays 4.4.2 Handling conflicts 4.4.3 Harassment and discrimination 4.5 Environmental considerations 4.5.1 Pollution prevention 4.5.2 Waste management 4.5.3 Reducing energy use 4.5.4 Respect protected areas, fauna, and flora 4.6 Working with local communities 4.7 Communication with the outside world 4.8 Leaving the field Chapter resources 5. After fieldwork 5.1 Reporting to the station, funders, and local communities 5.2 Data preservation, backup, and submission APPENDICES Appendix A: Checklists Appendix B: Equipment lists Appendix C: Health risks

Note: Table of contents Abstract Zusammenfassung Abbreviations and nomenclatureI 1. Introduction 1.1 Scientific background 1.1.1 Permafrost and ground ice 1.1.2 Organic carbon pools and fluxes into the Arctic Ocean 1.1.3 Climate warming and permafrost thaw 1.1.4 Permafrost degradation and coastal erosion 1.1.5 Study area Yukon coast and Qikiqtaruk 1.2 Knowledge gaps 1.3 Aims and objectives 1.4 Thesis structure and author's contribution 2. Eroding permafrost coasts release low amounts of dissolved organic carbon (DOC) from ground ice into the nearshore zone of the Arctic Ocean 2.1 Abstract 2.2 Introduction 2.3 Study area 2.4 Methods 2.4.1 Field work 2.4.2 DOC concentration 2.4.3 DOC flux estimation 2.5 Results 2.5.1 Segmentation of the coast - literature synthesis 2.5.2 DOC concentration 2.5.3 DOC stocks and fluxes 2.6 Discussion 2.6.1 DOC concentrations in ground ice 2.6.2 DOC fluxes from the YC 2.6.3 DOC fluxes and the Arctic carbon budget 2.7 Conclusion and Outlook 2.8 Acknowledgements 3.Transformation of terrestrial organic matter along thermokarst-affected permafrost coasts in the Arctic 3.1 Abstract 3.2 Introduction 3.3 Study area 3.3 Methods 3.3.1 Field work 3.3.2 Sedimentology, stratigraphy, and vegetation 3.3.3 Organic matter 3.3.4 Statistics 3.3.5 Transformation of organic matter 3.3.6 Fate of organic matter in the nearshore zone 3.4 Results 3.4.1 Sedimentology, stratigraphy, and vegetation 3.4.2 Organic matter 3.4.3 C/N-ratios and δ13C 3.4.4 Biomarkers 3.5 Discussion 3.5.1 Transformation of organic matter in the disturbed zone 3.5.2 Fate of organic matter in the nearshore zone 3.5.3 Environmental impact of the RTS 3.6 Conclusion 3.7 Acknowledgements 4. Rapid greenhouse gas release from eroding permafrost coasts 4.1 Summary 4.2 Background 4.3 Study site 4.4 Sampling and incubation setup 4.5 Findings and discussion 4.6 Conclusion 4.7 Methods 4.7.1 Incubation conditions 4.7.2 Gas measurements 4.7.3 Geo- and hydrochemical analysis 4.8 Acknowledgements 5. Synthesis 5.1 Mobilization of permafrost OC pools by coastal erosion 5.2 Transformation of permafrost OM on transit from land to sea 5.3 Fate and pathways of permafrost OC in the nearshore zone 5.4 Conclusion and outlook References Appendix I: Dissolved organic carbon (DOC) in Arctic ground ice I-1 Abstract I-2 Introduction I-3 Study area and study sites I-4 Material and methods I-4-1 Laboratory analyses I-4-2 Statistical methods I-5 Results I-5-1 DOC and DIC concentrations I-5-2 Correlation matrix I-5-3 Principal components I-5-4 Univariate Tree Model (UTM) I-6 Discussion I-6-1 DOC stocks in ground ice and relevance to carbon cycling I-6-2 Carbon sequestration and origin in relation to inorganic geochemistry I-6-3 DOC mobility and quality upon permafrost degradation I-7 Conclusions and outlook I-8 Acknowledgements Appendix II: Supplementary material for Chapter 2 II-1 Supplementary table - Ground ice and geochemical data II-2 Supplementary table - Coastal segments and DOC flux Appendix III: Supplementary material for Chapter 3 III-1 Normalized Differenced Vegetation Index map III-2 Photograph of a massive ice bed in a RTS III-3 Calculation of biomarker proxies III-4 Supplementary table - Summary of geochemical data III-5 Supplementary table - Summary of statistical analysis AppendixI V: Supplementary material for Chapter 4 IV-1 Design of the incubation experiment IV-2 Photograph of a standard incubation setup IV-3 Conversion of gas amounts into mass IV-4 Total and daily aerobic CH4 production IV-5 Histogram summarizing OC losses and CO2 emissions IV-6 Supplementary table - Summary of TOC, DOC, and pH data IV-7 Supplementary table - Summary of TN, TOC/TN, and δ13C-TOC data IV-8 Supplementary table - Summary of total CO2 and CH4 production data IV-9 Supplementary table - Comparison of incubation setups IV-10 Supplementary table - Summary of daily CO2 production data IV-11 Supplementary table - Summary of daily CH4 production data Acknowledgements-Danksagung

Note: In norwegischer Sprache

Note: Inhaltsverzeichnis 1 Einleitung 1.1Wissenschaftliche Zielsetzung 2 Grundlagen 2.1 Grundgleichungen 2.2 Potentielle Vorticity 2.3 Planetare Wellen 2.4 Atmosphärische Instabilität 2.5 Grenzschicht 2.6 Kopplung von Tropo- und Stratosphäre 3 Daten und Methoden 3.1 N-ICE2015 3.1.1 Expeditionsbeschreibung 3.1.2 Ziele der Expedition 3.2 Daten 3.2.1 Beobachtungsdaten 3.2.2 ERA-Interim Reanalyse 3.2.3 Das HIRHAM5 Modell 3.3 Analysemethoden 3.3.1 Temperaturinversionen 3.3.2 Vertikale Stabilität 3.3.3 Grenzschichthöhe 3.3.4 Eady Growth Rate 3.3.5 2d-Skalenfilterung und -Pattern-Korrelation 3.3.6 Nudging Experiment 4 Analyse der N-ICE2015 Radiosonden 4.1 Blick auf die Troposphäre 4.2 Fallstudie zum M2-Sturm: A 4.3 Zyklonencharakteristika 4.4 Temperaturinversionen und Stabilität 4.5 Vergleich mit ERA-Interim, SHEBA und Ny-Ålesund 4.6 Résumé der Expeditionsdaten 5 Nudging Studien mit HIRHAM5 5.1 Vergleich mit ERA-Interim 5.2 Vergleich der Simulationen 5.3 Fallstudie zum M2-Sturm: B 5.3.1 Synoptische Aktivität 5.4 Statistischer Vergleich 6 Einfluss der Stratosphäre 6.1 Stratosphäre im Winter 2014/2015 6.2 Fallstudie zum M2-Sturm: C 6.3 PV als Ladung 6.4 Résumé der Beobachtungen 7 Zusammenfassung und Ausblick A Zusätztliche Abbildungen B Literaturverzeichnis

Note: Table of contents Abstract Zusammenfassung Abbreviations and Nomenclature 1. Introduction 1.1 Scientific Background 1.1.1 Climate and Permafrost 1.1.2 Remote Sensing 1.1.3 Research Questions 1.2 General Approach 1.3 Thesis Structure 1.4 Author’ s contributions 1.4.1 Chapter 2 1.4.2 Chapter 3 1.4.3 Chapter 4 1.4.4 Chapter 5 1.4.5 Appendix Paper 1 2. Detection of landscape dynamics in the Arctic Lena Delta withtemporally dense Landsat time-series Stacks 2.1 Abstract 2.2 Introduction 2.3 Study Area and Data 2.3.1 Study Area 2.3.2 Data 2.3.3 Methods/processing 2.4 Results 2.4.1 Regional Scale changes 2.4.2 Local scale changes 2.5 Discussion 2.5.1 Regional scale changes 2.5.2 Local scale changes 2.5.3 Data quality 2.5.4 Data usage and outlook 2.6 Conclusion 2.7 Data Archive 2.8 Acknowledgements 2.9 Appendix A. Supplementary Data 3. Landsat-Based Trend Analysis of Lake Dynamics across NorthernPermafrost Regions 3.1 Abstract 3.2 Introduction 3.3 Study Sites 3.3.1 Alaska North Slope (NSL) 3.3.2 Alaska Kobuk-Selawik Lowlands (AKS) 3.3.3 Central Yakutia (CYA) 3.3.4 Kolyma Lowland (KOL) 3.4 Data and Methods 3.4.1 Data and Trend Analysis 3.4.2 Pixel-Based Machine-Leaming Classification 3.4.3 Object-Based Image Analysis 3.4.4 Data Quality and Post-Processing 3.4.5 Calculation of Lake Change Statistics 3.5 Results 3.5.1 NSL (Alaska North Slope) 3.5.2 AKS (Alaska Kobuk-Selawik Lowlands) 3.5.3 CYA (Central Yakutia) 3.5.4 KOL (Kolyma Lowland) 3.6 Discussion 3.6.1 Data Analysis 3.6.2 Comparison of Sites and Prior Studies 3.7 Conclusions 3.8 Supplementary Materials 3.9 Acknowledgements 3.10 Appendix A 4. Remotely sensing recent permafrost region disturbances across Arcticto Subarctic transects 4.1 Abstract 4.2 Introduction 4.3 Results 4.3.1 Lakes 4.3.2 Retrogressive Thaw Slumps 4.3.3 Wildfire 4.4 Discussion 4.5 Methods 4.5.1 Remote Sensing Data Processing 4.5.2 Auxiliary Data Sources 5. Tundra landform and Vegetation productivity trend maps for theArctic Coastal Plain of northern Alaska 5.1 Abstract 5.2 Background & Summary 5.3 Methods 5.3.1 Polygonal tundra geomorphology mapping 5.3.2 Image processing 5.3.3 Image Classification 5.3.4 Decadal scale NDVI trend analysis 5.4 Data Records 5.5 Technical Validation 5.5.1 Tundra Geomorphology Map 5.5.2 NDVI Trend Map 5.6 Data Citation 6. Discussion/Synthesis 6.1 Landsat-based trend analysis 6.1.1 Spatial Scale 6.1.2 Time series analysis 6.1.3 Model complexity 6.2 Mapping of permafrost landscape dynamics 6.2.1 Lake dynamics 6.2.2 Wildfire 6.2.3 Retrogressive Thaw Slumps 6.3 Pan-arctic scale distribution and consequences of changes inpermafrost 6.4 Outlook Bibliography A-1. Appendix: Reduced arctic tundra productivity linked with landform and climate change interactions A-1.1 Abstract A-1.2 Introduction A-1.3 Methods A-1.4 Results A-1.5 Discussion Danksagung/Acknowledgements Eidesstattliche Erklärung

Note: CONTENTS PREFACE 1 IASC Internal Development IASC Organization IASC Council IASC Executive Committee Secretariat ISIRA IASC Medal 2019 2 IASC Working Groups Cross-cutting Activities Launching of MOSAiC, an IASC Flagship Initiative Atmosphere Working Group (AWG) Cryosphere Working Group (CWG) Marine Working Group (MWG) Social and Human Working Group (SHWG) Terrestrial Working Group (TWG) 3 Arctic Science Summit Week 2018 POLAR2018: Where the Poles Come Together Upcoming ASSWs 4 Data and Observations#Arctic Data Committee (ADC) Sustaining Arctic Observing Networks (SAON) 5 Capacity Building IASC Fellowship Program Fellows’ Voices Overview of Supported Early Career Scientists

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

Note: Dissertation, Universität Potsdam, 2019 , Table of Contents Abstract Zusammenfassung 1 Introduction 1.1 Scientific background 1.1.1 Permafrost - terrestrial and subsea 1.1.2 Subsea permafrost distribution 1.1.3 Relevance in the context of a changing Arctic 1.1.4 Influences on subsea permafrost 1.2 Hypotheses and objectives 1.3 Thesis organization 2 Detection of subsea permafrost degradation rates 2.1 An overview of geophysical methods and studies in subsea permafrost 2.2 Geophysical objectives 2.3 Passive seismic techniques 2.3.1 H/V passive seismics 2.3.2 Passive seismic interferometry 2.4 Instrument design & marine tests on Sylt 2.5 Arctic feasibility test site around Muostakh Island 2.6 Arctic deployment for wide area detection around Muostakh Island 3 Modelling of subsea permafrost degradation processes 3.1 An overview on subsea permafrost modelling 3.2 Salt distribution- mechanisms beyond diffusional transport 3.3 Open questions in salt transport and permafrost degradation 3.4 Modelling objectives 3.5 Study sites 3.5.1 Primary study site: Cape Mamontov Klyk 3.5.2 Secondary study sites: Buor Khaya & Muostakh Island 3.6 Developing a model for subsea permafrost 3.6.1 Thermal regime of the subsurface: governing equations of conductive heat transfer 3.6.2 Model definitions: concentration and thaw depth 3.6.3 Saline effect on the state of permafrost 3.6.4 Salt transport: governing equation & parameterizations 3.6.5 Modelling approach 3.6.6 Model testing 3. 7 Results: Influence of model parameters on subsea permafrost degradation 3.8 Discussion and implications 3.8.1 Modelled inundation parameters 3.8.2 Further factors affecting subsea permafrost degradation 3.8.3 Implications 4 From local to regional scale: Amending sparsely distributed temperature records 4.1 An overview of borehole temperature reconstruction . 4.2 On the transferability of ground to air temperatures . 4.3 Reconstruction objectives 4.4 Borehole sites and climate 4.5 Borehole temperatures 4.6 Inversion method 4.6.1 Forward model 4.6.2 Optimization 4.6.3 Sensitivity analysis 4.7 Results and discussion of the reconstruction from the permafrost boreholes 4.7.1 Recoverable period 4.7.2 Optimization 4.7.3 Surface temperature reconstructions and fit 4.7.4 Inversion method's impact on character of solution & sensitivity to temperature history parameterization 4.8 Discussion of spatial differences and implications 4.8.1 Comparison to other temperature data 4.8.2 Site differences 4.8.3 Methodological considerations 4.8.4 Implications 5 Conclusion and outlook 5.1 Outlook Appendices A Modelling tests for H/V method configuration Bibliography Acknowledgements

Note: Dissertation, Universität Potsdam, 2015 , Table of Contents Acknowledgements Abstract Zusammenfassung List of figures and tables List of Abbreviations 1. Introduction 1.1. Preface and thesis organization 1.2. Research motivation and relevance 1.3. Background knowledge 1.3.1. Terrigenous sediments 1.3.2. Hala Lake 1.3.3. The North Pacific 1.3.4. The Bering Sea 1.4. Aims and objectives 1.5. Methodological overview 1.5.1. Fieldwork 1.5.2. Age-depth modeling 1.5.3. Key proxies: grain size and clay minerals 1.5.4. Supplementary methodology: remote sensing, seismic sub-bottom profiling and geochemistry 1.6. Overview and status of the manuscripts 2 Manuscript 1 : Linkages between Quaternary climate change and sedimentary processes in Hala Lake, northern Tibetan Plateau, China Abstract 2.1. Introduction 2.2. Regional setting 2.3. Materials and methods 2.3.1. Remote sensing of the study area 2.3.2. Fieldwork 2.3.3. Radiocarbon dating of recovered sediment cores 2.3.4. Laboratory work 2.3.5. Statistical data treatment 2.4. Results and interpretation 2.4.1. Remote sensing on the spatial heterogeneity of lake ice and length of lake ice-free days 2.4.2. Seismic sub-bottom profiling 2.4.3. Age and sedimentary characteristics of the sediment core record 2.4.4. Grain-size modeling results 2.5. Discussion 2.5.1. Last Glacial Maximum (~24-17 cal. ka BP) 2.5.2. Time-equivalent of Heinrich Event 1 (~17-15.4 cal. ka BP) 2.5.3. Time-equivalent of Bolling-Allerod (~15.4-13 cal. ka BP) 2.5.4. Time-equivalent of Younger Dryas (~12.9-11.6 cal. ka BP) 2.5.5. Holocene (~11.6 cal. ka BP to present) 2.6. Conclusions Acknowledgments 3 Manuscript 2: Modern modes of provenance and dispersal of terrigenous sediments in the North Pacific and the Bering Sea: Implications and perspectives for palaeoenvironmental reconstructions Abstract 3.1. Introduction 3.2. Study area and regional setting 3.3. Material and methods 3.4. Results 3.4.1. Grain size distribution 3.4.2 Bulk mineralogy 3.4.3. Mineralogy of the clay fraction 3.5. Discussion 3.5.1. Sedimentary processes 3.5.2. Sediment provenance 3.5.3 Implications for palaeoenvironmental studies 3.6. Conclusions Acknowledgements 4 Manuscript 3: Provenance and dispersal of terrigenous sediments in the Bering Sea slope: Implications for late glacial land-ocean linkages Abstract 4.1. Introduction 4.2. Regional setting 4.3. Material and methods 4.4. Results and interpretation 4.4.1. Lithology and stratigraphy 4.4.2. Grain size distribution 4.4.3. Clay mineralogy 4.5. Discussion 4.5.1. Processes of terrigenous sediment supply 4.5.2. Detrital sediment sources 4.5.3. Detrital sediment supply and its relation to regionalpalaeoenvironmental changes 4.5.3.1. Time interval 32-15.7 ka BP: Background sedimentation at low sea level 4.5.3.2. Time interval 15.7-14.5 ka BP: Regional Meltwater Pulse 4.5.3.3. Time interval 14.5-12.9 ka BP: First biological bloom event 4.5.3.4. Time interval 12.9-6 ka BP: Cooling episode, rejuvenation of biological productivity and onset ofmodern conditions 4.5.4. Palaeoenvironmental implications 4.6. Conclusions Acknowledgements 5 Synthesis 5.1. The North Hemisphere synchronization of millennial climate oscillations during the last Glacial: teleconnections from Westerlies and thermohaline Circulation 5.2. The regional asynchronization of millennial climate oscillations during the last Glacial: discrepancy and "recording capacity" 5.3. Secondary connections between global climate transmissions: winter cyclone in the North Pacific 5.4. Future perspectives 6 References 7 Appendix Extended results: Core SO202-39-3 from the mid-latitude North Pacific 7.1. Material 7.2. Results 7.3. Oscillation of eolian sediment transport 7.4. Conclusions

Note: Dissertation, Universität Potsdam, 2018 , Table of Content I. Abstract II. Deutsche Zusammenfassung 0 Preface 1 Scientific Background 1.1 Paleoenvironmental changes since the gLGM in arid Central Asia and north-western High Asia 1.1.1 Paleoclimatic changes 1.1.2 Lake level fluctuations following climatic changes 1.1.3 Inferred terrestrial vegetation responses to environmental changes and possible human impact 1.2 The role of proxy records in tracing environmental changes 1.2.1 Archives and Proxies investigated in environmental studies in Central Asia 1.2.2 Limnological systems as environmental archives 1.2.3 The multiproxy approach as a tool to decipher environmental change 1.3 Study area 1.4 Material and Method Overview 1.4.1 Field based sampling 1.4.2 Outline of material and methods 1.5 Aim and objectives ofthis thesis 1.6 Thesis outline 1.7 Contribution of the authors 1.7.1 Manuscript I - published 1.7.2 Manuscript II - published 1.7.3 Manuscript III - published 1.7.4 Manuscript IV - in preparation 2 Manuscript I Climatic and limnological changes at Lake Karakul (Tajikistan) during the last ~29 cal ka 2.1 Abstract 2.2 Introduction 2.3 Study Area 2.4 Material and methods 2.4.1 Fieldwork 2.4.2 Laboratory analysis 2.5 Results 2.5.1 Age-depth relationship in core KK12-1 2.5.2 TIC, TOC, TOC/TN, δ18Ocarb and δ13CCarb 2.5.3 Grain-size distribution and results ofend-member modelling 2.5.4 XRF data 2.5.5 Ordination results of sediment parameters 2.6 Discussion 2.6.1 Paleoenvironmental indicators from sediment variables 2.6.2 Implications ofthe Lake Karakul sediment record 2.6.3 Linking lake internal development to climate change 2.7 Conclusions 2.8 Acknowledgements 2.9 Data availability 3 Manuscript II Aquatic macrophyte dynamics in Lake Karakul (Eastern Pamir) over the last 29 cal ka revealed by sedimentary ancient DNA and geochemical analyses of macrofossil remains 3.1 Abstract 3.2 Introduction 3.3 Material and Methods 3.3.1 Sample acquisition and treatment 3.3.2 Genetic approach 3.3.3 Elemental isotopic analyses ofaquatic macrophyte remains 3.4 Results 3.4.1 Macrophyte records along lake depth transects in Lake Karakul 3.4.2 Submerged plant content 3.4.3 Ancient DNA analyses 3.4.4 C, N, δ13C and δ15N of Stuckenia cf. pamirica remains 3.5 Discussion 3.5.1 Assessment of aDNA and chemical aquatic macrophyte data as proxies for the macrophyte composition and the paleo-productivity 3.5.2 Changes of past submerged plant composition and productivity and potential drivers 3.6 Conclusions 3.7 Acknowledgements 3.8 Data Availability 4 Manuscript III Radiocarbon and optical stimulated luminescence dating of sediments from Lake Karakul, Tajikistan 4.1 Abstract 4.2 Introduction 4.3 Regional setting 4.4 Methods 4.4.1 Collection and correlation of cores 4.4.2 Radiocarbon dating 4.4.3 Optically stimulated luminescence (OSL) dating 4.4.4 Establishment ofage-depth model 4.4.5 Investigation of exposed lake sediments 4.5 Results 4.6 Discussion 4.6.1 Recovered sediments and correlation ofcores from Lake Karakul 4.6.2 Age-depth model, and assessment of radiocarbon and OSL age data 4.6.3 Significance ofexposed sediments at section KK13-S1 4.6.4 Implications ofthe chronological data 4.7 Conclusion 4.8 Acknowledgements 5 Manuscript IV Vegetation change in the Eastern Pamir Mountains inferred from Lake Karakul pollen spectra of the last 28 ka 5.1 Abstract 5.2 Introduction 5.3 Study site 5.4 Material and Methods 5.4.1 Sediment cores and chronology 5.4.2 Pollen sample preparation and pollen analyses 5.4.3 Pollen data treatment 5.5 Results 5.5.1 Composite core (KK12-1/2; 27.6 cal ka BP to present) 5.5.2 Short core TAJ-Kar-08-lB 5.6 Discussion 5.6.1 Interpretation of pollen data 5.6.2 Terrestrial vegetation change in the Eastern Pamir Mountains in response to past climate change 5.7 Conclusions 5.8 Acknowledgements 5.9 Data Availability 6 Synthesis 6.1 Proxy evaluation 6.1.1 Age-depth relationship 6.1.2 Limnological proxies 6.1.3 Terrestrial proxies 6.2 The potential of Lake Karakul as archive for long term environmental change in the Eastern Pamir 6.3 Climate and moisture availability changes over time - inferred from sedimentary proxies 6.4 Assessment ofthe aquatic macrophyte composition and paleoproductivity within Lake Karakul 6.5 Inferred terrestrial vegetation changes as responds to climatic changes over the last 28 cal ka 6.6 Comparison inferred regional vegetation, lake internal and lake external variations and changes in climate reconstructed in other studies 6.6.1 Pre- gLGM and global Last Glacial Maximum (27.6 to 19 cal ka BP) 6.6.2 Late glacial 6.6.3 Early to middle Holocene 6.6.4 Middle to late Holocene 6.7 Outlook 7 Appendix 7.1 Supplementary information for Manuscript I 7.2 Supplementary information for Manuscript II 7.3 Supplementary information for Manuscript III 8 References Danksagung Eldesstattliche Erklärung

Note: Contents Preface Acknowledgements 1 Introduction 1.1 The Periglacial Concept: Definitions and Scope 1.2 The Periglacial Realm 1.3 The Development of Periglacial Geomorphology 1.4 Periglacial Geomorphology: The Quaternary Context 1.5 The Aims and Organization of this Book 2 Periglacial Environments 2.1 Introduction 2.2 Periglacial Climates 2.3 Soils in Periglacial Environments 2.4 Vegetation Cover in Periglacial Environments 2.5 Synthesis 3 Ground Freezing and Thawing 3.1 Introduction 3.2 Ground Heating and Cooling 3.3 Soil Freezing 3.4 Ice Segregation in Freezing Soils 3.5 Thaw Consolidation 3.6 Synthesis 4 Permafrost 4.1 Introduction 4.2 Permafrost Thermal Regime 4.3 Classification of Permafrost 4.4 Detection, Mapping and Modelling of Permafrost 4.5 Permafrost Distribution 4.6 Permafrost-glacier Interactions 4.7 The Geomorphic Importance of Permafrost 5 Ground Ice and Cryostratigraphy 5.1 Introduction 5.2 Genetic Classification of Ground Ice 5.3 Description of Ground Ice 5.4 Ice Contacts 5.5 Cryostratigraphy 5.6 The Transition Zone 5.7 Massive Ground Ice 5.8 Yedoma 6 Thermal Contraction Cracking: Ice Wedges and Related Landforms 6.1 Introduction 6.2 Thermal Contraction Cracking and Polygon Evolution 6.3 Ice Veins and Ice Wedges 6.4 Ice-wedge Polygons 6.5 Sand Veins and Sand Wedges 6.6 Composite Veins and Composite Wedges 6.7 Sand-wedge Polygons 6.8 Frost Cracking of Seasonally Frozen Ground 6.9 Thaw Modification of Frost Wedges 6.10 Frost-Wedge Pseudomorphs and Frost Polygons in Areas of Past Permafrost 7 Pingos, Palsas and other Frost Mounds 7.1 Introduction 7.2 Characteristics of Pingos 7.3 Hydrostatic Pingos 7.4 Hydraulic Pingos 7.5 Pingo Problems and Problem Pingos 7.6 Segregation Ice Mounds: Palsas, Lithalsas and Related Landforms 7.7 Palsas 7.8 Peat Plateaus 7.9 Lithalsas 7.10 Permafrost Plateaus 7.11 Other Permafrost Mounds 7.12 Ephemeral Frost Mounds 7.13 Relict Permafrost Mounds 8 Thermokarst 8.1 Introduction 8.2 Thermokarst Lakes and Drained Lake Basins 8.3 Thermokarst Pits, Bogs and Fens 8.4 Retrogressive Thaw Slumps 8.5 Small-scale Thermokarst Features: Beaded Streams, Sinkholes and Thermokarst Gullies 8.6 Sediment Structures associated with Thermokarst 8.7 Relict Thermokarst Phenomena 9 Seasonally Frozen Ground Phenomena 9.1 Introduction 9.2 Upfreezing of Clasts 9.3 Frost Heave of Bedrock 9.4 Patterned Ground: The Embroidery on the Landscape 9.5 Patterned Ground Processes 9.6 Sorted Patterned Ground 9.7 Nonsorted Patterned Ground 9.8 Cryoturbations 9.9 Pedogenic Effects of Freezing and Thawing 9.10 Fragipans 9.11 Synthesis 10 Rock Weathering and Associated Landforms 10.1 Introduction 10.2 Physical Weathering Processes 10.3 Chemical Weathering Processes 10.4 Biotic Weathering Processes 10.5 Weathering Processes in Periglacial Environments 10.6Cold-climate Karst 10.7 Tors 10.8 Blockfields and Related Periglacial Regolith Covers 10.9 Brecciated Bedrocks 11 Periglacial Mass Movement and Hillslope Evolution 11.1 Introduction 11.2 Solifluction Processes 11.3 Solifluction Landforms 11.4 Pleistocene Solifluction Landforms and Slope Deposits 11.5 Active-layer Failures 11.6 Permafrost Creep 11.7 Nivation 11.8 Cryoplanation 11.9 Slope Form and Slope Evolution 12 Talus Slopes and Related Landforms 12.1 Introduction 12.2 Rockfall Talus 12.3 The Geomorphic Role of Snow Avalanches 12.4 Debris-flow Activity 12.5 Rock Glaciers 12.6 Pronival (Protalus) Ramparts 12.7 Synthesis 13 Fluvial Processes and Landforms 13.1 Introduction 13.2 Periglacial Hydrology 13.3 Slopewash 13.4 Slushflows 13.5 Sediment Transport in Periglacial Rivers 13.6 Bank and Channel Erosion 13.7 River Channels 13.8 Alluvial Landforms in Periglacial Environments 13.9 Valley Form 13.10 Pleistocene Periglacial Rivers 13.11 Synthesis 14 Wind Action 14.1 Introduction 14.2 Aeolian Processes 14.3 Wind Erosion in Present Periglacial Environments 14.4 Aeolian Deposits in Present Periglacial Environments 14.5 Quaternary Aeolian Deposits 14.6 Synthesis 15 Periglacial Coasts 15.1 Introduction 15.2 The Nature of Periglacial Coasts 15.3 The Role of Ice in Shoreline Evolution 15.4 Ice-rich Permafrost Coasts 15.5 Thermokarst Coasts 15.6 Barrier Coasts 15.7 Salt Marshes and Tidal Flats 15.8 Rock Coasts 15.9 Raised and Inherited Shorelines 15.10 Lake Shorelines 15.11 Synthesis 16 Past Periglacial Environments 16.1 Introduction 16.2 Palaeoenvironmental Reconstruction Based on Periglacial Features 16.3 Past Periglacial Environments of the British Isles 16.4 Pre-Late Devensian Periglacial Features in the British Isles 16.5 The Dimlington Stade in the British Isles 16.6 The Younger Dryas (Loch Lomond) Stade in the British Isles 16.7 Past Periglacial Environments of the British Isles: Commentary 16.8 Late Weichselian Periglacial Environments in Continental Europe 16.9 Late Wisconsinan Periglacial Environments in North America 16.10 Permafrost Extent in the Northern Hemisphere During the Last Glacial Stage 16.11 Concluding Comments 17 Climate Change and Periglacial Environments 17.1 Introduction 17.2 Permafrost Degradation 17.3 Geomorphological Implications of Climate Change in the Circumpolar North 17.4Geomorphological Implications of Climate Change in High Mountain Environments 17.5 Climate Change ,Permafrost Degradation and Greenhouse Gas Emissions 17.6 Conclusion Appendix: Text Abbreviations, Units and Symbols Employed in Equations References Index

Note: Contents Preface to the fourth edition Contributors Editor's acknowledgements Acknowledgements Part I: The role of physical geography 1 Approaching physical geography 1.1 Introduction 1.2 Historical development of physical geography 1.2.1 Physical geography before 1800 1.2.2 Physical geography between 1800 and 1950 1.2.3 Physical geography since 1950 1.3 Scientific methods 1.3.1 The positivist method 1.3.2 Critique of the positivist method 1.3.3 Realism as an alternative positivist approach 1.3.4 Benefits of multiple scientific methods in physical geography 1.4 The field, the laboratory and the model 1.4.1 Approaching data collection from the environment 1.4.2 Approaching laboratory work 1.4.3 Approaching numerical modelling 1.5 Using physical geography for managing the environment 1.6 Summary Further reading Part II: Continents and oceans 2 Earth geology and tectonics 2.1 Introduction 2.2 The Earth's structure 2.2.1 The interior of the Earth 2.2.2 The outer layers of the Earth 2.3 Rock type and formation 2.3.1 Igneous rock 2.3.2 Sedimentary rock 2.3.3 Metamorphic rock 2.3.4 The rock cycle 2.4 History of plate tectonics 2.4.1 Early ideas of global tectonics 2.4.2 Evidence that led directly to plate tectonic theory 2.5 The theory of plate tectonics 2.5.1 Lithospheric plates 2.5.2 Rates of plate movement 2.6 Structural features related directly to motion of the plates 2.6.1 Divergent plate boundaries 2.6.2 Transform faults 2.6.3 Convergent plate boundaries 2.6.4 Hot spots 2.7 The history of the continents 2.8 Summary Further reading 3 Oceans 3.1 Introduction 3.2 The ocean basins 3.2.1 The scale of the oceans 3.2.2 Geological structure of the ocean basins 3.2.3 The depth and shape of the ocean basins 3.3 Physical properties of the ocean 3.3.1 Salinity 3.3.2 Temperature structure of the oceans 3.4 Ocean circulation 3.4.1 Surface currents 3.4.2 The deep currents of the oceans 3.4.3 The weather of the ocean 3.5 Sediments in the ocean 3.6 Biological productivity 3.6.1 Photosynthesis in the ocean 3.6.2 Importance of nutrient supply to primary productivity 3.6.3 Animals of the sea 3.6.4 Pollution 3.7 Effect of global climate change on the oceans 3.8 Summary Further reading Part III: Past, present and future climate and weather 4 The Pleistocene 4.1 Introduction 4.2 Long-term cycles, astronomical forcing and feedback mechanisms 4.2.1 Orbital forcing theory 4.2.2 Evidence that orbital forcing causes climate change 4.2.3 Problems with orbital forcing theory 4.2.4 Internal feedback mechanisms 4.3 Short-term cycles 4.3.1 Glacial instability 4.3.2 The Younger Dryas 4.4 Further evidence for environmental change 4.4.1 Landforms 4.4.2 Plants 4.4.3 Insects 4.4.4 Other animal remains 4.5 Dating methods 4.5.1 Age estimation techniques 4.5.2 Age equivalent labels 4.5.3 Relative chronology 4.6 Pleistocene stratigraphy and correlation 4.7 Palaeodimate modelling 4.8 Summary Further reading 5 The Holocene 5.1 Introduction 5.2 Holocene climatic change 5.2.1 How the Holocene began 5.2.2 Drivers of climate change during the Holocene 5.2.3 The Little Ice Age 5.3 Holocene geomorphological change 5.3.1 Retreating ice sheets 5.3.2 Rising seas 5.4 Holocene ecosystem change 5.4.1 Responses of ecosystems to the end of the last glacial 5.4.2 Tropical Africa and the Sahara 5.4.3 European ecosystems 5.4.4 Island ecosystems 5.5 The rise of civilizations 5.5.1 Humans at the end of the last glacial 5.5.2 The beginnings of agriculture 5.5.3 Social and environmental consequences of agriculture 5.6 Human interaction with physical geography 5.6.1 Out of Eden? 5.6.2 Deforestation 5.6.3 Soil erosion and impoverishment 5.6.4 Irrigation and drainage 5.7 Summary Further reading 6 Atmospheric processes 6.1 Introduction 6.2 The basics of climate 6.3 The global atmospheric circulation 6.4 Radiative and energy systems 6.4.1 The nature of energy 6.4.2 Distinguishing between temperature and heat 6.4.3 Radiation 6.4.4 Thermal inertia 6.4.5 The atmospheric energy balance 6.5 Moisture circulation systems 6.5.1 Moisture in the atmosphere and the hydrological cycle 6.5.2 Global distribution of precipitation and evaporation 6.5.3 The influence of vegetation on evaporation 6.5.4 Drought 6.6 Motion in the atmosphere 6.6.1 Convective overturning 6.6.2 The Earth's rotation and the winds 6.6.3 Long waves. Planetary Waves and Rossby Waves 6.6.4 Jet streams 6.7 The influence of oceans and ice on atmospheric processes 6.8 The Walker circulation 6.8.1 El Niño Southern Oscillation 6.8.2 North Atlantic Oscillation 6.9 Interactions between radiation, atmospheric trace gases and clouds 6.9.1 The greenhouse effect 6.9.2 A simple climate model of the enhanced greenhouse effect 6.9.3 Radiative interactions with clouds and sulfate aerosols 6.10 Ceoengineering 6.11 Summary Further reading 7 Contemporary climate change 7.1 Introduction 7.2 Climate change 7.2.1 Long-term change 7.2.2 Recent climate change and its causes 7.2.3 Predictions from global climate models (GCMs) 7.2.4 Critical evaluation of the state-of-the-art in GCMs 7.3 The carbon cycle: interaction with the climate system 7.4 Mitigation 7.5 Destruction of the ozone layer by chlorofluorocarbons (CFCs) 7.6 The future 7.7 Summary Further reading 8 Global climate and weather 8.1 Introduction 8.2 General controls of global climates 8.3 The tropics and subtropics 8.3.1 Equatorial regions 8.3.2 The Sahel and desert margins 8.3.3 Subtropical deserts 8.3.4 Humid subtropics 8.4 Mid and high-latitude climates 8.4.1 Depressions, fronts and anticyclones 8.4.2 Mid-latitude western continental margins 8.4.3 Mid-latitude east continental margins and continental interiors 8.5 Polar climates 8.6 A global overview 8.7 Summary Further reading 9 Regional and local climates 9.1 Introduction 9.2 Altitude and topography 9.2.1 Pressure 9.2.2 Temperature 9.2.3 Wind 9.2.4 Precipitation 9.2.5 Frost hollows 9.3 Influence of water bodies 9.4 Human influences 9.4.1 Shelter belts 9.4.2 Urban climates 9.4.3 Atmospheric pollution and haze 9.5 Summary Further reading Part IV: Biogeography and ecology 10 The biosphere 10.1 Introduction 10.2 Biological concepts 10.2.1 What is a species? 10.2.2 The naming of species 10.2.3 Levels of organization 10.2.4 Biodiversity 10.3 Patterns of distribution 10.3.1 Potential species distributions 10.3.2 Actual species distributions 10.3.3 Spatial patterns in biodiversity 10.4 Terrestrial biomes 10.4.1 Equatorial and tropical forests 10.4.2 Savanna 10.4.3 Hot Desert 10.4.4 Mediterranean-type biome 10.4.5 Temperate grassland 10.4.6 Temperate broadleaf forest 10.4.7 Taiga 10.4.8 Tundra 10.5 Aquatic biomes 10.5.1 Marine regions 10.5.2 Freshwater regions 10.6 Summary Further reading 11 Ecosystem processes 11.1 Introduction 11.2 The flow of energy and resources 11.2.1 Energy entering an ecosystem 11.2.2 Ecological thermodynamics 11.2.3 Trophic levels and food webs 11.2.4 Biogeochemical cycles 11.3 Biotic interactions 11.3.1 Mutualism 11.3.2 Herbivory, prédation and parasitism 11.3.3 Commensalism 11.3.4 Amensalism 11.3.5 Competition 11.4 Temporal change in ecosystems 11.4.1 Short-term changes 11.4.2 Disturbance and resilience 11.4.3 Succession 11.5 Human impact 11.5.1 Degrading ecosystems 11.5.2 Urban ecology 11.5.3 Conservation 11.6 Summary Further reading 12 Freshwater ecosystems 12.1 Introduction 12.2 Running waters: rivers and streams 12.2.1 River ecosystem geomorphological units 12.2.2 Spatial variability of river ecosystems 12.2.3 Temporal variability of river ecosystems 12.2.4 Human alterations to river ecosystems 12.3 Still waters: lakes and ponds 12.3.1 Classification of lake ecosystems 12.3.2 Spatial variability of lake ecosystems 12.3.3 Human influences on lake ecosystems 12.4 Summary Further reading 13 Vegetation and env

Note: Zugleich: Dissertation, Stockholm University, 2015 , Contents Abstract Zusammenfassung Sammanfattning List of Papers Author’s contribution 1 Introduction 2 Sea ice as part of the global climate system 2.1 The global climate system 2.2 Sea-ice characteristics 3 Methodology 3.1 Atmospheric reanalyses 3.2 Global climate models 4 Changes of the sea-ice cover 4.1 Long-term changes of the sea-ice cover 4.2 Inter-annual sea-ice variability 5 Conclusions and Outlook Acknowledgements References

Note: Table of Contents: List of contributors. - Cryosphere Science: Series Preface. - Preface. - Acknowledgments. - About the companion website. - 1 Remote sensing and the cryosphere. - 1.1 Introduction. - 1.2 Remote sensing. - 1.2.1 The electromagnetic spectrum and blackbody radiation. - 1.2.2 Passive systems. - 1.2.3 Active systems. - 1.3 The cryosphere. - References. - 2 Electromagnetic properties of components of the cryosphere. - 2.1 Electromagnetic properties of snow. - 2.1.1 Visible/near-infrared and thermal infrared. - 2.1.2 Microwave region. - 2.2 Electromagnetic properties of sea ice. - 2.2.1 Visible/near-infrared and thermal infrared. - 2.2.2 Microwave region. - 2.3 Electromagnetic properties of freshwater ice. - 2.4 Electromagnetic properties of glaciers and ice sheets. - 2.4.1 Visible/near-infrared and thermal infrared. - 2.4.2 Microwave region. - 2.5 Electromagnetic properties of frozen soil. - 2.5.1 Visible/near-infrared and thermal infrared. - 2.5.2 Microwave region. - References. - Acronyms. - Websites cited. - 3 Remote sensing of snow extent. - 3.1 lntroduction. - 3.2 Visible/near-infrared snow products. - 3.2.1 The normalized difference snow index (NDSI). - 3.3 Passive microwave products. - 3.4 Blended VNIR/PM products. - 3.5 Satellite snow extent as input to hydrological models. - 3.6 Concluding remarks. - Acknowledgments. - References. - Acronyms. - Websites cited. - 4 Remote sensing of snow albedo, grain size, and pollution from space. - 4.1 Introduction. - 4.2 Forward modeling. - 4.3 Local optical properties of a snow layer. - 4.4 Inverse problem. - 4.5 Pitfalls of retrievals. - 4.6 Conclusions. - Acknowledgments. - References. - Acronyms. - Websites cited. - 5 Remote sensing of snow depth and snow water equivalent. - 5.1 Introduction. - 5.2 Photogrammetry. - 5.3 LiDAR. - 5.4 Gamma radiation. - 5.5 Gravity data. - 5.6 Passive microwave data. - 5.7 Active microwave data. - 5.8 Conclusions. - References. - Acronyms. - Websites cited. - 6 Remote sensing of melting snow and ice. - 6.1 Introduction. - 6.2 General considerations on optical/thermal and microwave sensors and techniques for remote sensing of melting. - 6.2.1 Optical and thermal sensors. - 6.2.2 Microwave sensors. - 6.2.3 Electromagnetic properties of dry and wet snow. - 6.3 Remote sensing of melting over land. - 6.4 Remote sensing of melting over Greenland. - 6.4.1 Thermal infrared sensors. - 6.4.2 Microwave sensors. - 6.5 Remote sensing of melting over Antarctica. - 6.6 Conclusions. - References. - Acronyms. - 7 Remote sensing of glaciers. - 7.1 Introduction. - 7.2 Fundamentals. - 7.3 Satellite instruments for glacier research. - 7.4 Methods. - 7.4.1 Image classification for glacier mapping. - 7.4.2 Mapping debris-covered glaciers. - 7.4.3 Glacier mapping with SAR data. - 7.4.4 Assessing glacier changes. - 7.4.5 Area and length changes. - 7.4.6 Volumetrie glacier changes. - 7.4.7 Glacier velocity. - 7.5 Glaciers of the Greenland ice sheet. - 7.5.1 Surface elevation. - 7.5.2 Glacier extent. - 7.5.3 Glacier dynamics. - 7.6 Summary. - References. - Acronyms. - Websites cited. - 8 Remote sensing of accumulation over the Greenland and Antarctic ice sheets. - 8.1 Introduction to accumulation. - 8.2 Spaceborne methods for determining accumulation over ice sheets. - 8.2.1 Microwave remote sensing. - 8.2.2 Other remote sensing techniques and combined methods. - 8.3 Airborne and ground-based measurements of accumulation. - 8.3.1 Ground-based. - 8.3.2 Airborne. - 8.4 Modeling of accumulation. - 8.5 The future for remote sensing of accumulation. - 8.6 Conclusions. - References. - Acronyms. - Website cited. - 9 Remote sensing of ice thickness and surface velocity. - 9.1 Introduction. - 9.1.1 Electrical properties of glacial ice. - 9.2 Radar principles. - 9.2.1 Radar sounder. - 9.2.2 Radar equation. - 9.3 Pulse compression. - 9.4 Antennas. - 9.5 Example results. - 9.6 SAR and array processing. - 9.7 SAR Interferometry. - 9. 7.1 Introduction. - 9.7.2 Basic theory. - 9.7.3 Practical considerations of InSAR systems. - 9.7.4 Application of InSAR to Cryosphere remote sensing. - 9.8 Conclusions. - References. - Acronyms. - 10 Gravimetry measurements from space. - 10.1 Introduction. - 10.2 Observing the Earth's gravity field with inter-satellite ranging. - 10.3 Surface mass variability from GRACE. - 10.4 Results. - 10.5 Conclusions. - References. - Acronyms. - 11 Remote sensing of sea ice. - 11.1 Introduction. - 11.2 Sea ice concentration and extent. - 11.2.1 Passive microwave radiometers. - 11.2.2 Active microwave - scatterometry and radar. - 11.2.3 Visible and infrared. - 11.2.4 Operational sea ice analyses. - 11.3 Sea ice drift. - 11.4 Sea ice thickness and age, and snow depth. - 11.4.1 Altimetric thickness estimates. - 11.4.2 Radiometric thickness estimates. - 11.4.3 Sea ice age estimates as a proxy for ice thickness. - 11.5 Sea ice melt onset and freeze-up, albedo, melt pond fraction and surface temperature. - 11.5.1 Melt onset and freeze-up. - 11.5.2 Sea ice albedo and melt pond fraction. - 11.5.3 Sea ice surface temperature. - 11.6 Summary, challenges and the road ahead. - References. - Acronyms. - Website cited. - 12 Remote sensing of lake and river ice. - 12.1 Introduction. - 12.2 Remote sensing of lake ice. - 12.2.1 Ice concentration, extent and phenology. - 12.2.2 Ice types. - 12.2.3 Ice thickness and snow on ice. - 12.2.4 Snow/ice surface temperature. - 12.2.5 Floating and grounded ice: the special case of shallow Arctic/sub-Arctic lakes. - 12.3 Remote sensing of river ice. - 12.3.1 Ice extent and phenology. - 12.3.2 lce types, ice jams and flooded areas. - 12.3.3 Ice thickness. - 12.3.4 Surface flow velocities. - 12.3.5 Incorporating SAR-derived ice information into a GIS-based system in support of river-flow modeling and flood forecasting. - 12.4 Conclusions and outlook. - Acknowledgments. - References. - Acronyms. - Websites cited. - 13 Remote sensing of permafrost and frozen ground. - 13.1 Permafrost - an essential climate variable of the "Global Climate Observing System". - 13.2 Mountain permafrost. - 13.2.1 Remote sensing of surface features and permafrost landforms. - 13.2.2 Generation of digital elevation models. - 13.2.3 Terrain elevation change and displacement. - 13.3 Lowland permafrost - identification and mapping of surface features. - 13.3.1 Land cover and vegetation. - 13.3.2 Permafrost landforms. - 13.3.3 Landforms and processes indicating permafrost degradation. - 13.4 Lowland permafrost - remote sensing of physical variables related to the thermal permafrost state. - 13.4.1 Land surface temperature through thermal remote sensing. - 13.4.2 Freeze-thaw state of the surface soil through microwave remote sensing. - 13.4.3 Permafrost mapping with airborne electromagnetic surveys. - 13.4.4 Regional surface deformation through radar interferometry. - 13.4.5 A gravimetric signal of permafrost thaw?. - 13.5 Outlook - remote sensing data and permafrost models. - References. - Acronyms. - 14 Field measurements for remote sensing of the cryosphere. - 14.1 Introduction. - 14.2 Physical properties of interest. - 14.2.1 Surface properties. - 14.2.2 Sub-surface properties. - 14.3 Standard techniques for direct measurements of physical properties. - 14.3.1 Topography. - 14.3.2 Snow depth. - 14.3.3 Snow water equivalent and density. - 14.3.4 Temperature. - 14.3.5 Stratigraphy. - 14.3.6 Sea ice depth and ice thickness. - 14.4 New techniques for high spatial resolution measurements. - 14.4.1 Topography. - 14.4.2 Surface properties. - 14.4.3 Sub-surface properties. - 14.5 Simulating airborne and spaceborne observations from the ground. - 14.5.1 Active microwave. - 14.5.2 Passive microwave. - 14.6 Sampling strategies for remote sensing field campaigns: concepts and examples. - 14.6.1 Ice sheet campaigns. - 14.6.2 Seasonal snow campaigns. - 14.6.3 Sea ice campaigns. - 14.7 Conclusions. - References. - Acronyms. - Websites cited. - 15 Remote sensing missions and the cryosphere. - 15.1 In

Note: Contents: 1 Introduction. - 1.1 Basic Concepts and Definitions. - 1.1.1 What Gas Seepage Is, What It Is Not. - 1.1.2 A Jungle of Names: Seeps, Macroseeps, Microseepage, Microseeps, and Miniseepage. - 1.1.3 Seepage id est Migration. - 1.1.4 Microbial, Thermogenic, and Abiotic Methane. - 1.2 Significance of Seepage and Implications. - 1.2.1 Seepage and Petroleum Exploration. - 1.2.2 Marine Seepage on the Crest of the Wave. - 1.2.3 From Sea to Land. - 1.2.4 A New Vision. - References. - 2 Gas Seepage Classification and Global Distribution. - 2.1 Macro-Seeps. - 2.1.1 Gas Seeps. - 2.1.2 Oil Seeps. - 2.1.3 Gas-Bearing Springs. - 2.1.4 Mud Volcanoes. - 2.1.5 Miniseepage. - 2.1.6 The Global Distribution of Onshore Macro-Seeps. - 2.2 Microseepage. - 2.3 Marine Seepage Manifestations. - References. - 3 Gas Migration Mechanisms. - 3.1 Fundamentals. - 3.1.1 Sources and Pathways. - 3.1.2 Diffusion and Advection. - 3.2 Actual Mechanisms and Migration Forms. - 3.2.1 Bubble and Microbubble Flow. - 3.2.2 Gas Seepage Velocity. - 3.2.3 Matter Transport by Microbubbles. - 3.2.4 The Concept of Carrier Gas and Trace Gas. - References. - 4 Detecting and Measuring Gas Seepage. - 4.1 Gas Detection Methods. - 4.1.1 Above-Ground (Atmospheric) Measurements. - 4.1.2 Ground Measurements. - 4.1.3 Measurements in Aqueous Systems. - 4.2 Indirect Methods. - 4.2.1 Chemical-Mineralogical Alterations of Soils. - 4.2.2 Vegetation Changes (Geobotanical Anomalies). - 4.2.3 Microbiological Analyses of Soils. - 4.2.4 Radiometric Surveys. - 4.2.5 Geophysical Techniques. - References. - 5 Seepage in Field Geology and Petroleum Exploration. - 5.1 Seepage and Faults. - 5.2 Microseepage Applied to Areal Petroleum Exploration. - 5.2.1 Which Gas Can Be Measured?. - 5.2.2 Microseepage Methane Flux Measurements. - 5.3 Seep Geochemistry for Petroleum System Evaluation. - 5.3.1 Recognising Post-genetic Alterations of Gases. - 5.3.2 Assessing Gas Source Type and Maturity. - 5.3.3 The Presence of Undesirable Gases (CO2, H2S, N2). - 5.3.4 Helium in Seeps… for Connoisseurs. - References. - 6 Environmental Impact of Gas Seepage. - 6.1 Geohazards. - 6.1.1 Methane Explosiveness. - 6.1.2 The Toxicity of Hydrogen Sulphide. - 6.1.3 Mud Expulsions and the Degradation of Soil-Sediments. - 6.2 Stray Gas, Natural versus Man-Made. - 6.3 Hypoxia in Aquatic Environments. - 6.4 Gas Emissions to the Atmosphere. - 6.4.1 Methane Fluxes and the Global Atmospheric Budget. - 6.4.2 Ethane and Propane Seepage, a Forgotten Potential Source of Ozone Precursors. - 6.5 Natural Seepage and CO2 Geological Sequestration. - References. - 7 Seepage in Serpentinised Peridotites and on Mars. - 7.1 Seeps and Springs in Active Serpentinisation Systems. - 7.1.1 Where Abiotic Methane Is Seeping. - 7.1.2 How Abiotic Methane in Land-Based Serpentinisation Systems Is Formed. - 7.1.3 How to Distinguish Abiotic and Biotic Methane. - 7.1.4 Seepage to the Surface. - 7.1.5 Is Abiotic Gas Seepage Important for the Atmospheric Methane Budget?. - 7.2 Potential Methane Seepage on Mars. - 7.2.1 Looking for Methane on Mars. - 7.2.2 A Theoretical Martian Seepage. - References. - 8 Gas Seepage and Past Climate Change. - 8.1 Past Seepage Stronger than Today. - 8.2 Potential Proxies of Past Seepage. - 8.3 Methane and Quaternary Climate Change. - 8.3.1 Traditional Models: Wetlands versus Gas Hydrates. - 8.3.2 Adding Submarine Seeps. - 8.3.3 Considering Onshore and Offshore Seepage in Total. - 8.3.4 CH4 Isotope Signatures in Ice Cores. - 8.4 Longer Geological Time Scale Changes. - 8.4.1 The Concept of Sedimentary Organic Carbon Mobilization. - 8.4.2 Paleogene Changes. - References. - 9 Seeps in the Ancient World: Myths, Religions, and Social Development. - 9.1 Seeps in Mythology and Religion. - 9.2 Seeps in Social and Technological Development. - References. - Epilogue. - Index.

Note: Contents: Preface. - Acknowledgements. - 1. The boy: Berlin and Brandenburg, 1880-1899. - 2. The student: Berlin - Heidelberg - Innsbruck - Berlin, 1899-1901. - 3. The astronomer: Berlin, 1901-1904. - 4. The aerologist: Lindenberg, 1905-1906. - 5. The polar meteorologist: Greenland, 1906. - 6. The Arctic explorer (1): Greenland, 1907-1908. - 7. The atmospheric physicist (1): Berlin und Marburg, 1908-1910. - 8. The atmospheric physicist (2): Marburg, 1910. - 9. At a crossroads: Marburg, 1911. - 10. The theorist of continental drift (1): Marburg, December 1911 - February 1912. - 11. The theorist of continental drift (2): Marburg, February - April 1912. - 12. The Arctic explorer (2): Greenland, 1912-1913. - 13. The soldier: Marburg and "The Field", 1913-1915. - 14. The meteorologist: "In the field", 1916-1918. - 15. The geophysicist: Hamburg, 1919-1920. - 16. From geophysicist to climatologist: Hamburg, 1920-1922. - 17. The paleoclimatologist: Hamburg, 1922-1924. - 18. The professor: Graz, 1924-1928. - 19. Theorist and Arctic explorer: Graz and Greenland, 1928-1929. - 20. The expedition leader: Graz and Greenland, 1929-1930. - Epilogue. - Notes. - Bibliographical essay. - Index.

Note: Inhalt: Auftakt. - Ein gefährliches Wort: Natur. - 1. 1754-1772. ANFÄNGE. - Wie ein unbeschriebenes Blatt. - Erste Eindrücke von Weite. - Zur rechten Zeit am rechten Ort. - 2. 1772-1775. ANSICHTEN DER NATUR: DIE REISE UM DIE WELT. - Wahrnehmungsmuster. - Die große Erzählung. - Das Meer. - Entfernungen. - Strapazen. - Wagnisse im Eis. - Das sonnige Arkadien. - Erste und letzte Anblicke. - Edle Wilde?. - Unter Menschenfressern. - Mord und Totschlag. - Eine Gemeinschaft von Gleichen. - Die gekränkten Rechte der Menschheit. - 3. 1776-1788. ZWISCHENSPIELE. - Blue devils. - Der Balsam der Natur. - Eine physische Anthropologie. - Ein Streit um Menschenrassen. - Politisches Wetterleuchten: Cook, der Staatsmann. - 4. 1789-1793. ANSICHTEN DES POLITISCHEN: DIE REVOLUTION. - Pariser Unruhen und politische Öffentlichkeit. - Geschichtszeichen der neuen Welt: Revolutionen. - Politische Ansichten vom Niederrhein. - Natur als Schicksal. - Das Prinzip des politischen Wandels: Gärung. - Die französische Mainzer Freiheit. - Die Mainzer Republik. - Kundige der unterirdischen Gänge: Forster und Goethe. - 5. 1793-1794. DAS ENDE: DIE GROßE RATLOSIGKEIT. - Das ungeheure Haupt der Revolution: Paris. - Das kalte Fieber des Terrors. - Tänzer am Rande des Unsinns: Adam Lux. - Zurück zur Natur: Menschenwürde. - Die Revolution ist die Revolution. - Verlassen wie ein Kind. - Eine Quelle sonderbarer Beschauung. - Schluss. - Das Mahagoni-Schränkchen. - Anmerkungen. - Literatur.

Note: Contents: 1. Introduction. - (1) The purposes of the long-term plan report. - (2) The background and particulars of this report. - (3) Contents of this report. - 2.Changes in the Arctic environment to date and in the near future. - 3. History of Arctic environmental research. - 4. Abstracts of all themes. - (1) Elucidation of abrupt environmental change in the Arctic associated with the on-going global warming. - Theme 1: Arctic amplification of global warming. - Theme 2: Mechanisms and influence of sea ice decline. - Theme 3: Biogeochemical cycles and ecosystem changes. - Theme 4: Ice sheet, glaciers, permafrost, snowfall, snow cover and hydrological cycle. - Theme 5: Interactions between the Arctic and the entire earth. - Theme 6: Predicting future environmental conditions of the Arctic based on paleoenvironmental records. - Theme 7: Effects of the Arctic environment on human society. - (2) Elucidation of environmental change concerning biodiversity. - Theme 8: Effects on terrestrial ecosystems and biodiversity. - Theme 9: Influence on marine ecosystem and biodiversity. - (3) Broad and important subjects on the Arctic environment. - Theme 10: Geospace environment. - Theme 11: Interaction of surface environment change with solid earth. - Theme 12: Basic understanding on formation and transition process of permafrost. - (4) Development of methods enabling breakthroughs in environmental research. - Theme A: Sustainable seamless monitoring. - Theme B: Earth system-modeling for inter-disciplinary research. - Theme C: Data assimilation to connect monitoring and modeling. - 5. Improvement of research foundation. - Authors and reviewers.

Note: Contents: 1 General Introduction. - 1.1 The Climate System. - 1.2 The Atmosphere. - 1.3 Energy Budget and Atmospheric Composition. - 1.4 The Water Cycle. - 1.5 Aerosols and Climate Change. - 1.6 Outline of this Textbook. - References. - Further Reading (Textbooks and Articles. - 2 Atmospheric Aerosols. - 2.1 Definitions. - 2.2 Sources of Aerosols and Aerosol Precursors. - 2.2.1 Marine Aerosols. - 2.2.2 Desert Dust. - 2.2.3 Volcanic Aerosols. - 2.2.4 Biogenic Aerosols. - 2.2.5 Biomass Burning Aerosols. - 2.2.6 Aerosols from Fossil Fuel Combustion. - 2.3 Spatial and Temporal Aerosol Distributions. - 2.4 Aerosol-Cloud-Radiation Interactions. - 2.5 Climate Effects of Aerosols. - References. - Further Reading (Textbooks and Articles). - 3 Physical, Chemical and Optical Aerosol Properties. - 3.1 Fine, Accumulation and Coarse Modes. - 3.2 Size Distribution. - 3.3 Chemical Composition. - 3.3.1 Aerosol Mixture. - 3.3.2 Inorganic Aerosols. - 3.3.3 Black Carbon Aerosols. - 3.3.4 Organic Aerosols. - 3.3.5 Geographic Distribution of Aerosol Chemical Composition. - 3.4 Refractive Index. - 3.5 Deliquescence, Efflorescence and Hysteresis. - 3.6 Definition of Aerosol Optical Properties. - 3.6.1 Absorption and Scattering Cross Sections. - 3.6.2 Phase Function. - 3.6.3 Upscatter Fractions. - 3.7 Calculation of Aerosol Optical Properties. - 3.7.1 Mie Theory. - 3. 7.2 Extinction, Scattering and Absorption. - 3.7.3 Optical Depth and Angström Coefficient. - 3.8 Optical Properties of Nonspherical Aerosols. - 3.9 Aerosols and Atmospheric Visibility. - References. - Further Reading (Textbooks and Articles). - 4 Aerosol Modelling. - 4.1 Introduction. - 4.2 Emissions. - 4.2.1 Generalities. - 4.2.2 Fossil Fuels, Biofuels, and Other Anthropogenic Sources. - 4.2.3 Vegetation Fires. - 4.2.4 Sea Spray. - 4.2.5 Desert Dust. - 4.2.6 Dimethylsulphide. - 4.2.7 Biogenic Volatile Organic Compounds. - 4.2.8 Volcanoes. - 4.2.9 Resuspension. - 4.3 Atmospheric Processes. - 4.3.1 Nucleation. - 4.3.2 Condensation of Semi-Volatile Compounds. - 4.3.3 Coagulation. - 4.3.4 In-Cloud Aerosol Production. - 4.3.5 Wet Deposition. - 4.3.6 Dry Deposition. - 4.3.7 Sedimentation. - 4.3.8 Aerosol Transport. - 4.4 Modelling Approaches. - 4.4.1 Bulk Approach. - 4.4.2 Sectional Approach. - 4.4.3 Modal Approach. - 4.5 Example: The Sulphur Budget. - References. - Further Reading (Textbooks and Articles). - 5 Interactions of Radiation with Matter and Atmospheric Radiative Transfer. - 5.1 Introduction. - 5.2 Electromagnetic Radiation. - 5.2.1 Generalities. - 5.2.2 Definitions. - 5.3 Interactions of Radiation with Matter. - 5.3.1 Matter, Energy and Spectral Lines. - 5.3.2 Intensity of Spectral Lines. - 5.3.3 Spectral Line Profiles. - 5.3.4 Processes of lnteractions of Radiation with Matter. - 5.4 Modelling of the Interaction Processes. - 5.4.1 Molecular Absorption Coefficient. - 5.4.2 Scattering Phase Function. - 5.4.3 Molecular Scattering. - 5.4.4 Absorption and Scattering by Aerosols. - 5.4.5 Thermal Emission. - 5.5 Atmospheric Radiative Transfer. - 5.5.1 Equation of Radiative Transfer. - 5.5.2 Extinction Only. - 5.5.3 Scattering Medium. - 5.5.4 Plane-Parallel Atmosphere. - 5.5.5 Resolution of the Equation of Radiative Transfer. - 5.6 Absorption Bands, Energy, and Actinic Fluxes. - 5.6.1 Main Molecular Absorption Bands in the Atmosphere. - 5.6.2 Radiative Flux. - 5.6.3 Two-Flux Method. - 5.6.4 Stefan-Boltzmann Law. - 5.6.5 Radiative Budget. - 5.6.6 Actinic Fluxes. - 5.6.7 Polarization of Radiation. - References. - Further Reading (Textbooks and Articles). - 6 In Situ and Remote Sensing Measurements of Aerosols. - 6.1 Introduction to Aerosol Remote Sensing. - 6.2 Passive Remote Sensing: Measurement of the Extinction. - 6.2.1 General Principles. - 6.2.2 Ground-Based Photometry. - 6.2.3 Spaceborne Occultation Measurements. - 6.2.4 Retrieval of Aerosol Size Distribution. - 6.3 Passive Remote Sensing: Measurement of the Scattering. - 6.3.1 General Principles. - 6.3.2 Ground-Based Measurement of Scattered Radiation. - 6.3.3 Spaceborne Measurements of Scattered Radiation. - 6.4 Measurement of Infrared Radiation. - 6.4.1 General Principles. - 6.4.2 Spaceborne Nadir Measurement of Infrared Radiation. - 6.4.3 Spaceborne Limb Measurement of Infrared Radiation. - 6.5 Active Remote Sensing: Lidar. - 6.5.1 General Principles. - 6.5.2 The Lidar Equation. - 6.5.3 Raman Lidar. - 6.6 In Situ Aerosol Measurements. - 6.6.1 Measurement of Aerosol Concentrations. - 6.6.2 Measurement of Aerosol Chemical Composition. - 6.6.3 Measurement of Aerosol Scattering. - 6.6.4 Measurement of Aerosol Absorption. - 6.7 Conclusions. - References. - Further Reading (Textbooks and Articles). - 7 Aerosol Data Assimilation. - 7.1 Introduction. - 7.2 Basic Principles of Data Assimilation. - 7.3 Applications of Data Assimilation for Aerosols. - References. - Further Reading (Textbooks and Articles). - 8 Aerosol-Radiation Interactions. - 8.1 Introduction. - 8.2 Atmospheric Radiative Effects Due to Aerosols. - 8.2.1 Simplified Equation for Scattering Aerosols. - 8.2.2 Simplified Equation for Absorbing Aerosols. - 8.2.3 Radiative Transfer Calculations. - 8.2.4 Global Estimates and Sources of Uncertainty. - 8.3 Rapid Adjustments to Aerosol-Radiation Interactions. - 8.4 Radiative Impact of Aerosols on Surface Snow and Ice. - References. - Further Reading (Textbooks and Articles). - 9 Aerosol-Cloud lnteractions. - 39.1 Introduction. - 9 .1.1 Cloud Formation. - 9 .1.2 Cloud Distribution. - 9 .1.3 Aerosol-Cloud Interactions. - 9.2 Aerosol Effects on Liquid Clouds. - 9 .2.1 Saturation Pressure of Water Vapour. - 9.2.2 Kelvin Effect. - 9.2.3 Raoult's Law. - . - 9.2.4 Köhler Theory. - 9.2.5 Extensions to the Köhler Theory. - 9.2.6 CCN and Supersaturation in the Cloud. - 9.2.7 Dynamical and Radiative Effects in Clouds. - 9.2.8 Principle of the Cloud Albedo Effect. - 9.2.9 Observations of the Cloud Albedo Effect. - 9.2.10 Adjustments in Liquid Water Clouds. - 9.2.11 Rapid Adjustments Occurring in Liquid Clouds. - 9.3 Aerosols Effects on Mixed-Phased and Ice Clouds. - 9.3.1 Elements of Microphysics of Ice Clouds. - 9.3.2 Impact of Anthropogenic Aerosols on Ice Clouds. - 9.4 Forcing Due to Aerosol-Cloud lnteractions. - 9.5 Aerosols, Contrails and Aviation-Induced Cloudiness. - 9.5.1 Formation of Condensation Trails. - 9.5.2 Estimate of the Climate Impact of Contrails. - References. - Further Reading (Textbooks and Articles). - 10 Climate Response to Aerosol Forcings. - 10.1 Introduction. - 10.2 Radiative Forcing, Feedbacks and Climate Response. - 10.2.1 Radiative Forcing. - 10.2.2 Climate Feedbacks. - 10.2.3 Rapid Adjustments and Effective Radiative Forcing. - 10.2.4 Climate Response and Climate Efficacy. - 10.3 Climate Response to Aerosol Forcings. - 10.3.1 Equilibrium Response. - 10.3.2 Past Emissions. - 10.3.3 Detection and Attribution of Aerosol Impacts. - 10.3.4 Future Emissions Scenarios. - 10.4 Nuclear Winter. - References. - Further Reading (Textbooks and Articles). - 11 Biogeochemical Effects and Climate Feedbacks of Aerosols. - 11 .1 Introduction. - 11.2 Impact of Aerosols on Terrestrial Ecosystems. - 11.2.1 Diffuse Radiation and Primary Productivity. - 11.2.2 Aerosols as a Source of Nutrients. - 11.2.3 Acidification of Precipitation. - 11.3 Impact of Aerosols on Marine Ecosystems. - 11.4 Aerosols-Atmospheric Chemistry Interactions. - 11.4.1 Interactions with Tropospheric Chemistry. - 11.4.2 Impact of Stratospheric Aerosols on the Ozone Layer and Ultravialet Radiation. - 11.5 Climate Feedbacks Involving Marine Aerosols. - 11.5.1 Sulphate Aerosols from DMS Emissions. - 11.5.2 Marine Aerosols. - 11.5.3 Other Aerosols of Maritime Origin. - 11.6 Climate Feedbacks Involving Continental Aerosols. - 11.6.1 Secondary Organic Aerosols. - 11.6.2 Primary Aerosols of Biogenic Origin. - 11.6.3 Aerosols from Vegetation Fires. - 11.6.4 Desert Dust. - 11.7 Climate Feedbacks Involving Stratospheric Aerosols. - References. - Further Reading (Textbooks and Articles). - 12 Strato

Note: Contents: 1 Introduction. - 1.1 Chapter Summary. - 1.2 The Meaning of the Book’s Title. - 1.3 Historical Background. - 1.4 How to Read This Book. - 1.5 Further Reading. - References. - PART 1 BASIC THEORETICAL CONCEPTS. - 2 Discrete-Time Signals and Systems. - 2.1 Chapter Summary. - 2.2 Basic Definitions and Concepts. - 2.3 Discrete-Time Signals: Sequences. - 2.3.1 Basic Sequence Operations. - 2.3.2 Basic Sequences. - 2.3.3 Deterministic and Random Signals. - 2.4 Linear Time-Invariant (LTI) Systems. - 2.4.1 Impulse Response of an LTI System and Linear Convolution. - 2.4.2 An Example of Linear Convolution. - 2.4.3 Interconnections of LTI Systems. - 2.4.4 Effects of Stability and Causality Constraints on the Impulse Response of an LTI System. - 2.4.5 Finite (FIR) and Infinite (IIR) Impulse Response Systems. - 2.4.6 Linear Constant-Coefficient Difference Equation (LCCDE). - 2.4.7 Examples of LCCDE. - 2.4.8 The Solutions of an LCCDE. - 2.4.9 From the LCCDE to the Impulse Response: Examples. - 2.4.10 Eigenvalues and Eigenfunctions of LTI Systems. - References. - 3 Transforms of Discrete-Time Signals. - 3.1 Chapter Summary. - 3.2 z-Transform. - 3.2.1 Examples of z-Transforms and Special Cases. - 3.2.2 Rational z-Transforms. - 3.2.3 Inverse z-Transform. - 3.2.4 The z-Transform on the Unit Circle. - 3.2.5 Selected z-Transform Properties. - 3.2.6 Transfer Function of an LTI System. - 3.2.7 Output Sequence of an LTI System. - 3.2.8 Zeros and Poles: Forms for Rational Transfer Functions. - 3.2.9 Inverse System. - 3.3 Discrete-Time Fourier Transform (DTFT). - 3.3.1 An Example of DTFT Converging in the Mean-Square Sense. - 3.3.2 Line Spectra. - 3.3.3 Inverse DTFT. - 3.3.4 Selected DTFT Properties. - 3.3.5 The DTFT of a Finite-Length Causal Sequence. - 3.4 Discrete Fourier Series (DFS). - 3.4.1 Selected DFS Properties. - 3.4.2 Sampling in the Frequency Domain and Aliasing in the Time Domain. - 3.5 Discrete Fourier Transform (DFT). - 3.5.1 The Inverse DFT in Terms of the Direct DFT. - 3.5.2 Zero Padding. - 3.5.3 Selected DFT Properties. - 3.5.4 Circular Convolution Versus Linear Convolution. - 3.6 Fast Fourier Transform (FFT). - 3.7 Discrete Trigonometric Expansion. - 3.8 Appendix: Mathematical Foundations of Signal Representation. - 3.8.1 Vector Spaces. - 3.8.2 Inner Product Spaces. - 3.8.3 Bases in Vector Spaces. - 3.8.4 Signal Representation by Orthogonal Bases. - 3.8.5 Signal Representation by Standard Bases. - 3.8.6 Frames and Biorthogonal Bases. - 3.8.7 Summary and Complements. - References. - 4 Sampling of Continuous-Time Signals. - 4.1 Chapter Summary. - 4.2 Sampling Theorem. - 4.3 Reconstruction of a Continuous-Time Signal from Its Samples. - 4.4 Aliasing in the Frequency Domain and Anti-Aliasing Filter. - 4.5 The Uncertainty Principle for the Analog Fourier Transform. - 4.6 Support of a Continuous-Time Signal in the Time and Frequency Domains. - 4.7 Appendix: Analog and Digital Frequency Variables. - References. - 5 Spectral Analysis of Deterministic Discrete-Time Signals. - 5.1 Chapter Summary. - 5.2 Issues in Practical Spectral Analysis. - 5.2.1 The Effect of Windowing. - 5.2.2 The Effect of Spectral Sampling. - 5.3 Classical Windows. - 5.4 The Kaiser Window. - 5.5 Energy and Power Signals and Their Spectral Representations. - 5.6 Correlation of Deterministic Discrete-Time Signals. - 5.6.1 Correlation of Energy Signals. - 5.6.2 Correlation of Power Signals. - 5.6.3 Effect of an LTI System on Correlation Properties of Input and Output Signals. - 5.7 Wiener-Khinchin Theorem. - 5.7.1 Energy Signals and Energy Spectrum. - 5.7.2 Power Signals and Power Spectrum. - References. - PART 2 DIGITAL FILTERS. - 6 Digital Filter Properties and Filtering Implementation. - 6.1 Chapter Summary. - 6.2 Frequency-Selective Filters. - 6.3 Real-Causal-Stable-Rational (RCSR) Filters. - 6.4 Amplitude Response. - 6.5 Phase Response. - 6.5.1 Phase Discontinuities and Zero-Phase Response. - 6.5.2 Linear Phase (LP). - 6.5.3 Generalized Linear Phase (GLP). - 6.5.4 Constraints on GLP Filters. - 6.6 Digital Filtering Implementation. - 6.6.1 Direct Forms. - 6.6.2 Transposed-Direct Forms. - 6.6.3 FIR Direct and Transposed-Direct Forms. - 6.6.4 Direct and Transposed-Direct Forms for LP FIR Filters. - 6.6.5 Cascade and Parallel Forms. - 6.7 Zero-Phase Filtering. - 6.8 An Incorrect Approach to Filtering. - 6.9 Filtering After Downsampling. - 6.9.1 Theory of Downsampling. - 6.9.2 An Example of Filtering After Downsampling. - References. - 7 FIR Filter Design. - 7.1 Chapter Summary. - 7.2 Design Process. - 7.3 Specifications of Digital Filters. - 7.3.1 Constraints on the Magnitude Response. - 7.3.2 Constraints on the Phase Response. - 7.4 Selection of Filter Type: IIR or FIR?. - 7.5 FIR-Filter Design Methods and Approximation Criteria. - 7.6 Properties of GLP FIR Filters. - 7.6.1 Factorization of the Zero-Phase Response. - 7.6.2 Zeros of the Transfer Function. - 7.6.3 Another Form of the Adjustable Term. - 7.7 Equiripple FIR Filter Approximations: Minimax Design. - 7.8 Predicting the Minimum Filter Order. - 7.9 MPR Algorithm. - 7.10 Properties of Equiripple FIR Filters. - 7.11 The Minimax Method for Bandpass Filters. - References. - 8 IIR Filter Design. - 8.1 Chapter Summary. - 8.2 Design Process. - 8.3 Lowpass Analog Filters. - 8.3.1 Laplace Transform. - 8.3.2 Transfer Function and Design Parameters. - 8.4 Butterworth Filters. - 8.5 Chebyshev Filters. - 8.5.1 Chebyshev-I Filters. - 8.5.2 Chebyshev-II Filters. - 8.6 Elliptic Filters. - 8.7 Normalized and Non-normalized Filters. - 8.8 Comparison Among the Four Analog Filter Types. - 8.9 From the Analog Lowpass Filter to the Digital One. - 8.9.1 Bilinear Transformation. - 8.9.2 Design Procedure. - 8.9.3 Examples. - 8.10 Frequency Transformations. - 8.10.1 From a Lowpass to a Highpass Filter. - 8.10.2 From a Lowpass to a Bandpass Filter. - 8.10.3 From a Lowpass to a Bandstop Filter . - 8.11 Direct Design of IIR Filters. - 8.12 Appendix. - 8.12.1 Trigonometric Functions with Complex Argument. - 8.12.2 Elliptic Integrals. - 8.12.3 Jacobi Elliptic Functions. - 8.12.4 Landen-Gauss Transformation. - 8.12.5 Elliptic Rational Function. - References. - PART 3 SPECTRAL ANALYSIS. - 9 Statistical Approach to Signal Analysis. - 9.1 Chapter Summary. - 9.2 Preliminary Considerations. - 9.3 Random Variables. - 9.4 Ensemble Averages. - 9.5 Stationary Random Processes and Signals. - 9.6 Ergodicity. - 9.7 Wiener-Khinchin Theorem for Random Signals and Power Spectrum. - 9.8 Cross-Power Spectrum of Two Random Signals. - 9.9 Effect of an LTI System on a Random Signal. - 9.10 Estimation of the Averages of Ergodic Stationary Signals. - 9.10.1 General Concepts in Estimation Theory. - 9.10.2 Mean and Variance Estimation. - 9.10.3 Autocovariance Estimation. - 9.10.4 Cross-Covariance Estimation. - 9.11 Appendix: A Road Map to the Analysis of a Data Record. - References. - 10 Non-Parametric Spectral Methods. - 10.1 Chapter Summary. - 10.2 Power Spectrum Estimation. - 10.3 Periodogram. - 10.3.1 Bias. - 10.3.2 Variance. - 10.3.3 Examples. - 10.3.4 Variance Reduction by Band- and Ensemble-Averaging. - 10.4 Bartlett’s Method. - 10.5 Modified Periodogram. - 10.6 Welch’s Method. - 10.7 Blackman-Tukey Method. - 10.8 Statistical Significance of Spectral Peaks. - 10.9 MultiTaper Method. - 10.10 Estimation of the Cross-Power Spectrum of Two Random Signals. - 10.11 Use of the FFT in Power Spectrum Estimation. - 10.12 Power Spectrum Normalization. - References. - 11 Parametric Spectral Methods. - 11.1 Chapter Summary. - 11.2 Signals with Rational Spectra . - 11.3 Stochastic Models and Processes. - 11.3.1 Autoregressive-Moving Average (ARMA) Model. - 11.3.2 Autoregressive (AR) Model. - 11.3.3 Moving Average (MA) Model. - 11.3.4 How the AR and MA Modeling Approaches Are Theoretically Related. - 11.3.5 First-Order AR and MA Models: White, Red and Blue Noise. - 11.3.6 Higher-Order AR Models. - 11.4 The AR Approach to Spectral Estimation. - 11.5 AR Modeling and Linear Prediction. - 11.6

Note: Inhaltsverzeichnis: Vorwort. - Kapitel 1: Konzepte für eine bessere Welt. - Was ist Nachhaltigkeit?. - Der Wert der Natur. - Conclusio: „Nachhaltigkeit“ – ein schwer zu definierender Begriff. - Kapitel 2: Was das Meer zu leisten vermag. - Das Gute im Meer. - Der bedrohte Ozean. - Conclusio: Ökosystemleistungen des Meeres in Gefahr. - Kapitel 3: Die Politik und das Meer. - Von der Schwierigkeit, das Meer zu verwalten. - Conclusio: Das Ideal der guten Meerespolitik. - Kapitel 4: Hoffnung für den Ozean. - Fahrplan für eine nachhaltige Zukunft?. - Meeresschutz ist möglich. - Conclusio: Wie Meeresschutz funktionieren kann. - Gesamt-Conclusio. - Glossar. - Mitwirkende. - Quellenverzeichnis. - Abbildungsverzeichnis. - Index. - Abkürzungen. - Partner und Danksagung. - Impressum.

Note: Contents: Preface. - Chapter 1: Concepts for a better world. - What is sustainability?. - The value of nature. - Conclusion: “Sustainability” – a difficult concept to define. - Chapter 2: How the sea serves us. - The bounty of the sea. - Oceans under threat. - Conclusion: Marine ecosystem services at risk. - Chapter 3: Politics and the oceans. - On the difficulty of governing the sea. - Conclusion: The ideal of good marine policy. - Chapter 4: Hope for the oceans. - Roadmap towards a sustainable future?. - Protecting the seas is possible. - Conclusion: How marine conservation can work. - Overall conclusion. - Glossary. - Contributors. - Bibliography. - Table of figures. - Index. - Abbreviations. - Partners and Acknowledgements. - Publication details.

Note: Contents: Abstract. - Kurzfassung. - 1 Introduction. - 1.1 Motivation. - 1.2 Scientific questions. - 1.3 Method. - 2 Background and state of the science. - 2.1 The atmospheric aerosol. - 2.1.1 Relevance. - 2.1.2 Aerosol processes. - 2.1.3 Aerosol properties. - 2.2 The influence of ship emissions. - 2.3 Aerosol modeling. - 2.3.1 Selected results. - 2.3.2 Motivation to expand on previous work. - 2.3.3 The computational approach. - 2.3.4 Existing aerosol microphysics submodels. - 2.3.5 MADE3 as a successor of MADE and MADE-in. - 3 The aerosol submodel MADE3. - 3.1 Aerosol characteristics. - 3.1.1 Modes. - 3.1.2 Species. - 3.1.3 Mathematical representation of aerosol characteristics. - 3.2 Aerosol processes. - 3.2.1 Gas–particle partitioning. - 3.2.2 Condensation of H2SO4 and organic vapors. - 3.2.3 New particle formation. - 3.2.4 Coagulation. - 3.2.5 Renaming. - 3.2.6 Aging of insoluble particles. - 4 Box model tests. - 4.1 Model description: MADE vs. MADE3. - 4.2 Model description: PartMC-MOSAIC. - 4.3 Test case scenario. - 4.4 Results: MADE3 vs. MADE. - 4.4.1 Size distributions. - 4.4.2 Composition. - 4.5 Results: MADE3 vs. PartMC-MOSAIC. - 4.5.1 Size distributions. - 4.5.2 Composition. - 4.6 Summary and conclusions. - 5 MADE3 in the atmospheric chemistry general circulation model EMAC. - 5.1 Basic settings. - 5.2 Emissions. - 5.3 Transport. - 5.4 Gas phase chemistry. - 5.5 Cloud formation. - 5.5.1 Stratiform clouds. - 5.5.2 Convective clouds. - 5.6 Cloud and precipitation processing of the aerosol. - 5.7 Wet deposition. - 5.8 Dry deposition. - 5.9 Sedimentation. - 5.10 Optical properties. - 6 Evaluation of simulated tropospheric aerosol properties. - 6.1 Data comparability. - 6.2 The MADE3 aerosol within EMAC. - 6.2.1 Near-surface mass concentrations. - 6.2.2 Vertical distributions. - 6.2.3 Size distributions. - 6.2.4 Aerosol optical depth. - 6.2.5 Global tropospheric burdens and residence times. - 6.2.6 Summary and conclusions. - 6.3 Comparison to MADE. - 6.4 New features of MADE3. - 7 Effects of oceanic ship emissions on atmospheric aerosol particles. - 7.1 Effects of year 2000 emissions. - 7.1.1 Near-surface concentrations. - 7.1.2 Near-surface size distributions. - 7.1.3 Tropospheric burdens. - 7.2 Effects of an idealized fuel sulfur content reduction. - 7.3 Summary and conclusions. - 8 Summary, conclusions, and outlook. - Appendix. - A.1 Particle evolution in the box model study. - A.2 Gas phase chemical mechanism. - A.3 Liquid phase chemical mechanism. - A.4 Mode assignment of cloud residual aerosol. - A.4.1 Terminology. - A.4.2 Basic assumptions. - A.4.3 Algorithm for residual assignment. - A.5 Year 2000 aerosol in EMAC with MADE3. - A.6 Near-surface mass concentration evaluation. - References. - Acronyms, symbols, and species names. - Acronyms. - Symbols. - Tracers and chemical species. - Danksagung.

Note: Contents: List of figures. - List of tables. - Foreword by Clive Hamilton. - Acknowledgements. - 1. Climate change and corporate capitalism. - 2. Creative self-destruction and the incorporation of critique. - 3. Climate change and the corporate construction of risk. - 4. Corporate political activity and climate coalitions. - 5. Justification, compromise, and corruption. - 6. Climate change, managerial identity and narrating the self. - 7. Emotions, corporate environmentalism and climate change. - 8. Political myths and pathways forward. - 9. Imagining alternatives. - Appendix. - References. - Index.

Note: Der richtige Standort - ein Grußwort / Gotthilf Hempel. - Vorwort / Karin Lochte, Bernhard Diekmann. - Die Entwicklung der Forschungsstelle Potsdam / Hans-Wolfgang Hubberten, Klaus Dethloff, Bernhard Diekmann, Diedrich Fritzsche. - Die Entwicklung der Atmosphärenforschung / Klaus Dethloff, Markus Rex, Roland Neuber, Annette Rinke, Dörthe Handorf, Marion Maturilli, Christoph Ritter, Peter von der Gathen, Ralph Lehmann, Wolfgang Dorn, Ingo Wohltmann. - Die Entwicklung der Periglazialforschung: Rückblick und Ausblick / Guido Grosse, Hans-Wolfgang Hubberten. - Die AWIPEV-Station auf Spitzbergen / Roland Neuber, Marion Maturilli, Christoph Ritter. - Permafrost-Langzeit-Observatorien in Sibirien und auf Spitzbergen / Julia Boike, Anne Morgenstern, Guido Grosse. - Küstenforschung im Nordwesten Kanadas / Michael Fritz, Hugues Lantuit. - Das Atmosphärenobservatorium Palau - Polarforschung in den Tropen / Markus Rex, Katrin Müller. - Zum Nordpol auf einer Eisscholle - Teilnahme an der Driftstation NP-35 / Marion Maturilli, Jürgen Gräser. - Polarer Ozonverlust im Klimawandel / Markus Rex, Peter von der Gathen, Ralph Lehmann, Ingo Wohltmann. - Vom grünen Laserstrahl zur Mikrophysik des Aerosols / Christoph Ritter, Marion Maturilli, Roland Neuber. - Wie können arktische Klimaänderungen das Wetter und Klima in Mitteleuropa beeinflussen? / Dörthe Handorf, Klaus Dethloff, Annette Rinke, Ralf Jaiser, Wolfgang Dorn, Heidrun Matthes. - Permafrost im Wandel - Regionaler Fokus, globale Bedeutung / Jens Strauss, Josefine Lenz, Thomas Schneider von Deimling, Frank Günther, Lutz Schirrmeister. - Arktischer Klimawandel und terrestrische Ökosysteme / Ulrike Herzschuh, Thomas Laepple, Hanno Meyer, Kathleen Stoof-Leichsenring, Heike Zimmermann, Laura Epp, Stefan Kruse, Boris Biskaborn, Diedrich Fritzsche, Birgit Heim, Bernhard Diekmann. - Das EU-Projekt PAGE21 / Hans-Wolfgang Hubberten, Julia Boike, Hugues Lantuit, Leen Kaisa Viitanen. - ICOP 2016 / Karina Schollän, Hans-Wolfgang Hubberten. - Nationale und internationale Sekretariate. - Potsdamer Nachwuchs. - Impressum.

Note: Contents: 1 Introduction. - 2 Basic Physical Properties of Soil. - 2.1 Geometry of the Soil Matrix. - 2.2 Soil Structure. - 2.3 Fractal Geometry. - 2.4 Geometry of the Pore Space. - 2.5 Specific Surface Area. - 2.6 Averaging. - 2.7 Bulk Density, Water Content and Porosity. - 2.8 Relationships between Variables. - 2.9 Typical Values of Physical Properties. - 2.10 Volumes and Volumetric Fractions for a Soil Prism. - 2.11 Soil Solid Phase. - 2.12 Soil Texture. - 2.13 Sedimentation Law. - 2.14 Exercises. - 3 Soil Gas Phase and Gas Diffusion. - 3.1 Transport Equations. - 3.2 The Diffiisivity of Gases in Soil. - 3.3 Computing Gas Concentrations. - 3.4 Simulating One-Dimensional Steady-State Oxygen Diffusion in a Soil Profile. - 3.5 Numerical Implementation. - 3.6 Exercises. - 4 Soil Temperature and Heat Flow. - 4.1 Differential Equations for Heat Conduction. - 4.2 Soil Temperature Data. - 4.3 Numerical Solution of the Heat Flow Equation. - 4.4 Soil Thermal Properties. - 4.5 Numerical Implementation. - 4.6 Exercises. - 5 Soil Liquid Phase and Soil-Water Interactions. - 5.1 Properties of Water. - 5.2 Soil Water Potential. - 5.3 Water Potential-Water Content Relations. - 5.4 Liquid- and Vapour-Phase Equilibrium. - 5.5 Exercises. - 6 Steady-State Water Flow and Hydraulic Conductivity. - 6.1 Forces on Water in Porous Media. - 6.2 Water Flow in Saturated Soils. - 6.3 Saturated Hydraulic Conductivity. - 6.4 Unsaturated Hydraulic Conductivity. - 6.5 Exercises. - 7 Variation in Soil Properties. - 7.1 Frequency Distributions. - 7.2 Probability Density Functions. - 7.3 Transformations. - 7.4 Spatial Correlation. - 7.5 Approaches to Stochastic Modelling. - 7.6 Numerical Implementation. - 7.7 Exercises. - 8 Transient Water Flow. - 8.1 Mass Conservation Equation. - 8.2 Water Flow. - 8.3 Infiltration. - 8.4 Numerical Simulation of Infiltration. - 8.5 Numerical Implementation. - 8.6 Exercises. - 9 Triangulated Irregular Network. - 9.1 Digital Terrain Model. - 9.2 Triangulated Irregular Network. - 9.3 Numerical Implementation. - 9.4 Main. - 9.5 Triangulation. - 9.6 GIS Functions. - 9.7 Boundary. - 9.8 Geometrical Properties of Triangles. - 9.9 Delaunay Triangulation. - 9.10 Refinement. - 9.11 Utilities. - 9.12 Visualization. - 9.13 Exercise. - 10 Water Flow in Three Dimensions. - 10.1 Governing Equations. - 10.2 Numerical Formulation. - 10.3 Coupling Surface and Subsurface Flow. - 10.4 Numerical Implementation. - 10.5 Simulation. - 10.6 Visualization and Results. - 10.7 Exercises. - 11 Evaporation. - 11.1 General Concepts. - 11.2 Simultaneous Transport of Liquid and Vapour in Isothermal Soil. - 11.3 Modelling evaporation. - 11.4 Numerical Implementation. - 11.5 Exercises. - 12 Modelling Coupled Transport. - 12.1 Transport Equations. - 12.2 Partial Differential Equations. - 12.3 Surface Boundary Conditions. - 12.4 Numerical Implementation. - 12.5 Exercises. - 13 Solute Transport in Soils. - 13.1 Mass Flow. - 13.2 Diffusion. - 13.3 Hydrodynamic Dispersion. - 13.4 Advection-Dispersion Equation. - 13.5 Solute-Soil Interaction. - 13.6 Sources and Sinks of Solutes. - 13.7 Analytical Solutions. - 13.8 Numerical Solution. - 13.9 Numerical Implementation. - 13.10 Exercises. - 14 Transpiration and Plant-Water Relations. - 14.1 Soil Water Content and Soil Water Potential under a Vegetated Surface. - 14.2 General Features of Water Flow in the SPAC. - 14.3 Resistances to Water Flow within the Plant. - 14.4 Effect of Environment on Plant Resistance. - 14.5 Detailed Consideration of Soil and Root Resistances. - 14.6 Numerical Implementation. - 14.7 Exercises. - 15 Atmospheric Boundary Conditions. - 15.1 Radiation Balance at the Exchange Surface. - 15.2 Boundary-Layer Conductance for Heat and Water Vapour. - 15.3 Evapotranspiration and the Penman-Monteith Equation. - 15.4 Partitioning of Evapotranspiration. - 15.5 Exercise. - Appendix A: Basic Concepts and Examples of Python Programming. - A.1 Basic Python. - A.2 Basic Concepts of Computer Programming. - A.3 Data Representation: Variables. - A.4 Comments Rules and Indendation. - A.5 Arithmetic Expression. - A.6 Functions. - A.7 Flow Control. - A.8 File Input and Output. - A.9 Arrays. - A.10 Reading Date Time. - A.11 Object-Oriented Programming in Python. - A.12 Output and Visualization. - A.13 Exercises. - Appendix B: Computational Tools. - B.1 Numerical Differentiation. - B.2 Numerical Integration. - B.3 Linear Algebra. - B.4 Exercises. - List of Symbols. - List of Python Variables. - List of Python Projects. - References. - Index.

Note: Contents: List of contributors. - Preface. - 1 Overview of sea ice growth and properties / Chris Petrich & Hajo Eicken. - 2 Sea ice thickness distribution / Christian Haas. - 3 Snow in the sea-ice system : friend or foe? / Matthew Sturm & Robert A. Massom. - 4 Sea ice and sunlight / Donald K. Perovich. - 5 The sea ice-ocean boundary layer / Miles G. McPhee. - 6 The atmosphere over sea ice / Ola Persson & Timo Vihma. - 7 Sea ice and arctic ocean oceanography / Finlo Cottier, Mike Steele & Frank Nielsen. - 8 Oceanography and sea ice in the southern ocean / Michael P. Meredith & Mark A. Brandon. - 9 Methods of satellite remote sensing of sea ice / Gunnar Spreen & Stefan Kern. - 10 Gaining (and losing) antarctic sea ice : variability, trends and mechanisms / Sharon Stammerjohn & Ted Maksym. - 11 Losing arctic sea ice : observations of the recent decline and the long-term context / Walt N. Meier. - 12 Sea ice in earth system models / Dirk Notz & Cecilia M. Bitz. - 13 Sea ice as a habitat for bacteria, archaea and viruses / Jody W. Deming & R. Eric Collins. - 14 Sea ice as a habitat for primary producers / Kevin R. Arrigo. - 15 Sea ice as a habitat for micrograzers / David A. Caron, Rebecca J. Gast & Marie-Eve Garneau. - 16 Sea ice as a habitat for macrograzers / Bodil A. Bluhm, Kerrie M. Swadling & Rolf Gradinger. - 17 Nutrients, dissolved organic matter and exopolymers in sea ice / Klaus M. Meiners & Christine Michel. - 18 Gases in sea ice / Jean-Louis Tison, Bruno Delille & Stathys Papadimitriou. - 19 Transport and transformation of contaminants in sea ice / Feiyue Wang, Monika Pucko & Gary Stern. - 20 Numerical models of sea ice biogeochemistry / Martin Vancoppenolla & Letizia Tedesco. - 21 Arctic marine mammals and sea ice / Kristin L. Laidre & Eric V. Regehr. - 22 Antarctic marine mammals and sea ice / Marthán N. Bester, Horst Bornemann & Trevor McIntyre. - 23 A feathered perspective : the influence of sea ice on arctic marine birds / Nina J. Karnovsky & Maria V. Gavrilo. - 24 Birds and antarctic sea ice / David Ainley, Eric J. Woehler & Amelie Lescroel. - 25 Sea ice is our beautiful garden : indigenous perspectives on sea ice of sea ice in the arctic / Henry P. Huntington, Shari Gearheard, Lene Kielsen Holm, George Noongwook, Margaret Opie & Joelie Sanguya. - 26 Advances in palaeo sea-ice estimation / Leanne Armand, Alexander Ferry & Amy Leventer. - 27 Ice in subarctic seas / Hermanni Kaartokallio, Mats A. Granskog, Harri Kuosa & Jouni Vainio. - Index.

Note: CONTENTS: PREFACE. - 1 IASC Internal Development. - IASC Organization. - IASC Council. - IASC Executive Committee. - IASC Secretariat. - ISIRA. - IASC Medal 2018. - 2 IASC Working Groups. - Cross-Cutting Activities. - Atmosphere Working Group (AWG). - Cryosphere Working Group (CWG). - Marine Working Group (MWG). - Social and Human Working Group (SHWG). - Terrestrial Working Group (TWG). - 3 Arctic Science Summit Week 2017. - Upcoming ASSWs. - 4 Data and Observations. - Arctic Data Committee (ADC). - Sustaining Arctic Observing Networks (SAON). - 5 Partnerships. - Arctic Council. - Asian Forum for Polar Sciences (AFoPS). - Association of Polar Early Career Scientists (APECS). - Circumpolar Health Research Network (CirchNet). - European Polar Board (EPB). - Forum of Arctic Research Operators (FARO). - International Arctic Social Sciences Association (IASSA). - International Association of Cryospheric Sciences (IACS). - International Council for the Exploration of the Sea (ICES). - The International Permafrost Association (IPA). - The Pacific Arctic Group (PAG). - The Scientific Committee on Antarctic Research (SCAR). - University of the Arctic (UArctic). - WCRP Climate and Cryosphere (CliC). - 6 Capacity Building. - IASC Fellowship Program. - CAFF-IASC Fellowship. - Fellows’ Voices. - Overview of Supported Early Career Scientists.

Note: Contents: Contributors. - Preface. - Acknowledgements. - PART I SETTING THE SCENE. - 1. Introduction: Why Sub-seasonal to Seasonal Prediction (S2S)? / Frédéric Vitart, Andrew W. Robertson. - 1 History of Numerical Weather and Climate Forecasting. - 2 Sub-seasonal to Seasonal Forecasting. - 3 Recent National and International Efforts on Sub-seasonal to Seasonal Prediction. - 4 Structure of This Book. - 2. Weather Forecasting: What Sets the Forecast Skill Horizon? / Zoltan Toth, Roberto Buizza. - 1 Introduction. - 2 The Basics of Numerical Weather Prediction. - 3 The Evolution of NWP Technique. - 4 Enhancement of Predictable signals. - 5 Ensemble Techniques: Brief Introduction. - 6 Expanding the forecast skill Horizon. - 7 Concludmg Remarks: Lessons for S2S Forecasting. - Acknowledgements. - 3. Weather Within Climate: Sub-seasonal Predictability of Tropical Daily Rainfall Characteristics / Vincent Moron, Andrew W. Robertson, Lei Wang. - 1 Introduction. - 2 Data and Methods. - 3 Results. - 4 Discussion and Concluding Remarks. - 4. Identifying Wave Processes Associated With Predictability Across Time Scales: An Empirical Normal Mode Approach / Gilbert Brunet, John Methven. - 1 Introduction. - 2 Partitioning Atmospheric Behavior Using Its Conservation Properties. - 3 The ENM Approach to Observed Data and Models and Its Relevance to S2S Dynamics and Predictability. - 4 Conclusion. - Acknowledgments. - PART II SOURCES OF S2S PREDICTABILITY. - 5. The Madden-Julian Oscillation / Steven J. Woolnough. - 1 Introduction. - 2 The Real-Time Multivariate MJO Index. - 3 Observed MJO Structure. - 4 The Relationship Between the MJO and Tropical and Extratropical Weather. - 5 Theories and Mechanisms for MJO Initiation, Maintenance, and Propagation. - 6 The Representation of the MJO in Weather and Climate Models. - 7 MJO Prediction. - 8 Future Priorities for MJO Research for S2S Prediction. - Acknowledgments. - 6. Extratropical Sub-seasonal to Seasonal Oscillations and Multiple Regimes: The Dynamical Systems View / Michael Ghil, Andreas Groth, Dmitri Kondrashov, Andrew W. Robertson. - 1 Introduction and Motivation. - 2 Multiple Midlatitude Regimes and Low-Frequency Oscillations. - 3 Extratropical Oscillations in the S2S Band. - 4 Low-Order, Data-Driven Modeling, Dynamical Analysis, and Prediction. - 5 Concluding Remarks. - Acknowledgments. - 7. Tropical-Extratropical Interactions and Teleconnections / Hai Lin, Jorgen Frederiksen, David Straus, Christiana Stan. - 1 Introduction. - 2 Tropical Influence on the Extratropical Atmosphere. - 3 Extratropical Influence on the Tropics. - 4 Tropical-Extratropical, Two-Way Interactions. - 5 Summary and Discussion. - Appendix. Technical Matters Relating to Section 4.2. - 8. Land Surface Processes Relevant to Sub-seasonal to Seasonal (S2S) Prediction / Paul A. Dirmeyer, Pierre Gentine, Michael B. Ek, Gianpaolo Balsamo. - 1 Introduction. - 2 Process of Land-Atmosphere Interaction. - 3 A Brief History of Land-Surface Models. - 4 Predictability and Prediction. - 5 Improving Land-Driven Prediction. - 9. Midlatitude Mesoscale Ocean-Atmosphere Interaction and Its Relevance to S2S Prediction / R. Saravanan, P. Chang. - 1 Introduction. - 2 Data and Models. - 3 Mesoscale Ocean-Atmosphere Interaction in the Atmospheric Boundary Layer. - 4 Local Tropospheric Response. - 5 Remote Tropospheric Response. - 6 Impact on Ocean Circulation. - 7 Implications for S2S Prediction. - 8 Summary and Conclusions. - Acknowledgments. - 10. The Role of Sea Ice in Sub-seasonal Predictability / Matthieu Chevallier, François Massonnet, Helge Goessling, Virginie Guémas, Thomas Jung. - 1 Introduction. - 2 Sea Ice in the Coupled Atmosphere-Ocean System. - 3 Sea Ice Distribution, Seasonality, and Variability. - 4 Sources of Sea Ice Predictability at the Sub-seasonal to Seasonal Timescale. - 5 Sea Ice Sub-seasonal to Seasonal - Predictability and Prediction Skill in Models. - 6 Impact of Sea Ice on Sub-seasonal Predictability. - 7 Concluding Remarks. - Acknowledgments. - 11. Sub-seasonal Predictability and the Stratosphere / Amy Butler, Andrew Charlton-Perez, Daniela I. V. Domeisen, Chaim Garfinkel, Edwin P. Gerber, Peter Hitchcock, Alexey Yu. Karpechko, Amanda C. Maycock, Michael Sigmond, Isla Simpson, Seok-Woo Son. - 1 Introduction. - 2 Stratosphere-Troposphere Coup ling in the Tropics. - 3 Stratosphere-Troposphere Coupling in the Extratropics. - 4 Predictability Related to Extratropical Stratosphere-Troposphere Coupling. - 5 Summary and Outlook. - PART Ill S2S MODELING AND FORECASTING. - 12. Forecast System Design, Configuration, and Complexity / Yuhei Takaya. - 1 Introduction. - 2 Requirements and Constraints of the Operational Sub-seasonal Forecast. - 3 Effect of Ensemble Size and Lagged Ensemble. - 4 Real-Time Forecast Configuration. - 5 Reforecast Configuration. - 6 Summary and Concluding Remarks. - Acknowledgments. - 13. Ensemble Generation: The TIGGE and S2S Ensembles / Roberto Buizza. - 1 Global Sub-seasonal and Seasonal Prediction Is an Initial Value Problem. - 2 Ensembles Provide More Complete and Valuable Information Than Single States. - 3 A Brief Introduction to Data Assimilation. - 4 A Brief Introduction to Model Uncertainty Simulation. - 5 An Overview of Operational, Global, Sub-seasonal, and Seasonal Ensembles, and Their Initialization and Generation Methods. - 6 Ensembles: Considerations About Their Future. - 7 Summary and Key Lessons. - 14. GCMs With Full Representation of Cloud Microphysics and Their MJO Simulations / In-Sik Kang, Min-Seop Ahn, Hiroaki Miura, Aneesh Subramanian. - 1 Introduction. - 2 Global CRM. - 3 Superparameterized GCM. - 4 GCM With Full Representation of Cloud Microphysics and Scale-Adaptive Convection. - 5 Summary and Conclusion. - Acknowledgments. - 15. Forecast Recalibration and Multimodel Combination / Stefan Siegert, David B. Stephenson. - 1 Introduction. - 2 Statistical Methods for Forecast Recalibration. - 3 Regression Methods. - 4 Forecast Combination. - 5 Concluding Remarks. - Acknowledgments. - 16. Forecast Verification for S2S Timescales / Caio A. S. Coelho, Barbara Brown, Laurie Wilson, Marion Mittermaier, Barbara Casati. - 1 Introduction. - 2 Factors Affecting the Design of Verification Studies. - 3 Observational References. - 4 Review of the Most Common Verification Measures. - 5 Types of S2S Forecasts and Current Verification Practices. - 6 Summary, Challenges, and Recommendations in S2S Verification. - PART IV S2S APPLICATIONS. - 17. Sub-seasonal to Seasonal Prediction of Weather Extremes / Frédérik Vitart, Christopher Cunningham, Michael Deflorio, Emanuel Dutra, Laura Ferranti, Brian Golding, Debra Hudson, Charles Jones, Christophe Lavaysse, Joanne Robbins, Michael K. Tippett. - 1 Introduction. - 2 Prediction of Large-Scale, Long-Lasting Extreme Events. - 3 Prediction of Mesoscale Events. - 4 Display and Verification of Sub-seasonal Forecasts of Extreme Events. - 5 Conclusions. - 18. Pilot Experiences in Using Seamless Forecasts for Early Action: The "Ready-Set-Go!" Approach in the Red Cross / Juan Bazo, Roop Singh, Mathieu Destrooper, Erin Coughlan de Perez. - 1 Introduction. - 2 Why Sub-seasonal?. - 3 Case Study: Peru El Niño. - 4 Reflections on the Use of S2S Forecasts. - 5 Conclusions. - 19. Communication and Dissemination of Forecasts and Engaging User Communities / Joanne Robbins, Christopher Cunningham, Rutger Dankers, Matthew Degennaro, Giovanni Dolif, Robyn Duell, Victor Marchezini, Brian Mills, Juan Pablo Sarmiento, Amber Silver, Rachel Trajber, Andrew Watkins. - 1 Introduction. - 2 Sector-Specific Methods and Practices in S2S Forecast Communication, Dissemination, and Engagement. - 3 Guiding principles for improved communication Practices. - 4 Summary and Recommendations for Future Research. - 20. Seamless Prediction of Monsoon Onset and Active/Break Phases / A.

Note: Inhalt: Grußwort - Antje Boetius. - Vorwort - Michaela Grein. - Die Welt teilhaben lassen - Luc Jacquet über die Sonderausstellung „Antarctica". - Die Geschichte der Antarktisforschung. - Die Entdeckung und Erforschung der Antarktis / Diedrich Fritzsche. - Die Gründung des Alfred-Wegener-Instituts für Polarforschung / Gotthilf Hempel. - Frauen in der Antarktis / Gotthilf Hempel. - Geologie und Klima. - Der geologische Bau der Antarktis / Andreas Läufer. - Einfluss des Ozeans auf das Schmelzen der Eisschelfe / Sunke Schmidtko. - Aurora australis - Polarlichter in der Antarktis / Michaela Grein. - Lebensräume und Organismengruppen. - Antarktische Makroalgen / Katharina Zacher & Christian Wiencke. - Leben am Meeresboden und Wiederbesiedlungsdynamik / Julian Gutt. - Die Schwämme des antarktischen Meeres / Dorte Janussen. - Schuppenwürmer in der Antarktis / Michael Stiller. - Meiofauna: Kleine Tiere - große Wirkung / Gritta Veit-Köhler & Friederike Säring. - Der antarktische Krill, Euphausia superba, im Nahrungsnetz des Südpolarmeers / Bettina Meyer. - Der Kaiserpinguin - Bedrohte Tierart und Stellvertreter für den Südozean / Daniel P. Zitterbart. - Fliegende Vögel der Antarktis / Hans-Ulrich Peter. - Antarktische Robben / Horst Bornemann & Joachim Plötz. - Pioniere und Überlebenskünstler: Die Flechten / Ludger Kappen. - Die Evolution der Wälder in Antarktika / Laura Jane Tilley. - Pflanzen in Antarktika / Michaela Grein. - Nutzung und Schutz der Antarktis. - Umweltschutz in der Antarktis / Heike Herata. - Meeresschutz in der Antarktis / Bob Zuur. - Tourismus in der Antarktis / Heinz Klöser. - Die Autorinnen und Autoren.

Note: Contents: 1 General introduction. - 1.1 Challenges of isotope-based temperature reconstructions. - 1.2 Thesis overview. - 1.3 Author contributions. - 2 Theoretical background. - 2.1 The isotopic composition of firn and ice. - 2.1.1 Fractionation of water isotopologues. - 2.1.2 Relationship with temperature. - 2.1.3 Measuring of the isotopic composition. - 2.2 Processes within the firn column. - 2.2.1 The firn column of polar ice sheets. - 2.2.2 The density of firn. - 2.2.3 The temperature profile of firn. - 2.2.4 Vapour diffusion in firn. - 2.3 Internal climate variability. - 3 Regional climate signal vs.local noise: a two-dimensional view of water isotopes. - 3.1 Introduction. - 3.2 Data and methods. - 3.3 Results. - 3.3.1 Trench isotope records. - 3.3.2 Single-profile representativity. - 3.3.3 Mean trench profiles. - 3.3.4 Spatial correlation structure. - 3.3.5 Statistical noise model. - 3.4 Discussion. - 3.4.1 Local noise vs. regional climate signal. - 3.4.2 Representativity of isotope signals. - 3.4.3 Implications. - 3.5 Conclusions. - 3.6 Appendix A: Derivation of noise model. - 3.6.1 Definitions. - 3.6.2 Derivation of model correlations. - 3.6.3 Estimation of parameters. - 3.7 Appendix B: Noise level after diffusion. - 4 Constraints on post-depositional isotope modifications in east antarctic firn. - 4.1 Introduction. - 4.2 Data and methods. - 4.2.1 Sampling and measurements. - 4.2.2 Trench depth scale. - 4.2.3 Spatial variability of trench profiles. - 4.2.4 Quantification of downward advection, densification and diffusion. - 4.2.5 Statistical tests. - 4.3 Results. - 4.3.1 Comparison of T15 and T13 isotope data. - 4.3.2 Expected isotope profile changes. - 4.3.3 Temporal vs. spatial variability. - 4.4 Discussion. - 4.4.1 Densification, diffusion and stratigraphic noise. - 4.4.2 Additional post-depositional modifications. - 4.5 Conclusions. - 5 On the similarity and apparent cycles of isotope variations. - 5.1 Introduction. - 5.2 Data and Methods. - 5.2.1 Data. - 5.2.2 Spectral analysis. - 5.2.3 Rice’s formula. - 5.2.4 Cycle length and amplitude estimation. - 5.2.5 Model for vertical isotope profiles. - 5.3 Results. - 5.3.1 Spectral analysis of isotope profiles. - 5.3.2 Theoretical and observed cycle length. - 5.3.3 Illustrative examples. - 5.3.4 Depth dependency of cycle length. - 5.3.5 Simulated vs. observed isotope variations. - 5.4 Discussion and summary. - 5.5 Conclusions. - 5.6 Appendix A: Input sensitivity. - 5.7 Appendix B: Additional results. - 5.8 Appendix C: Spectral significance testing. - 6 Timescale-dependency of antarctic isotope variations. - 6.1 Introduction. - 6.2 Data and methods. - 6.2.1 DML and WAIS isotope records. - 6.2.2 Spectral model. - 6.2.3 Timescale-dependent signal-to-noise ratio. - 6.2.4 Effects of diffusion and time uncertainty. - 6.2.5 Present-day temperature decorrelation. - 6.3 Results. - 6.3.1 Illustration of model approach. - 6.3.2 DML and WAIS isotope variability. - 6.4 Discussion. - 6.4.1 Interpretation of noise spectra. - 6.4.2 Interpretation of signal spectra. - 6.4.3 Signal-to-noise ratios. - 6.4.4 Differences between DML and WAIS. - 6.5 Conclusions. - 7 Declining temperature variability from LGM to holocene. - 8 General discussion and conclusions. - 8.1 Short-scale spatial and temporal isotope variability. - 8.1.1 Local spatial variability. - 8.1.2 Seasonal to interannual variability. - 8.1.3 Spatial vs. temporal variability. - 8.2 Extension to longer scales. - 8.2.1 Spatial vs. temporal variability on interannual timescales. - 8.2.2 Holocene and longer timescales. - 8.3 Concluding remarks and outlook. - Bibliography. - A Methods to: declining temperature variability from lgm to holocene. - A.1 Temperature proxy data. - A.2 Model-based temperature and variability change. - A.3 Temperature recalibration of proxy records. - A.3.1 Recalibration of ice-core records. - A.3.2 Recalibration of marine records. - A.4 Variance and variance ratio estimation. - A.5 Noise correction. - A.5.1 Testing effect of noise correction. - A.6 Effect of ecological adaption and bioturbation. - A.7 Effect of proxy sampling locations. - B Layering of surface snow and firn: noise or seasonal signal?. - B.1 Introduction. - B.2 Materials and methods. - B.2.1 Firn-core density profiles. - B.2.2 Trench density profiles. - B.2.3 Dielectric profiling and density estimates. - B.2.4 Comparison of DEP and CT density. - B.2.5 Ion measurements. - B.3 Results. - B.3.1 2-D trench density data. - B.3.2 Spatial correlation structure. - B.3.3 Comparison of mean density, isotope and impurity profiles. - B.3.4 Spectral analysis of vertical density data. - B.4 Discussion. - B.4.1 Spatial variability. - B.4.2 Representativeness of single profiles. - B.4.3 Seasonal cycle in snow density. - B.4.4 Density layering in firn and impurities. - B.5 Conclusions. - Acknowledgements - Danksagung.

Note: Inhalt: Einführung und Hintergrund der terrestrischen Expeditionen in Sibirien / Hans-Wolfgang Hubberten, Dmitry Yu. Bolshiyanov, Mikhail N. Grigoriev, Volker Rachold, Eva-Maria Pfeiffer. - 1. Auf dem Weg zu den Lena-Expeditionen 1993-1997. - Seesedimente auf Taimyr und Sewernaja Semlja als Klima-Archiv / Pier Paul Overduin, Dmitry Yu. Bolshiyanov, Martin Melles. - Erste Studien zu Energie-, Wasser- und Spurengasflüssen in Tundraböden: Labas-See und Lewinson-Lessing-See, Taimyr-Halbinsel / Eva-Maria Pfeiffer, Julia Boike, Mikhail P. Zhurbenko, Dmitry Yu. Bolshiyanov. - Untersuchungen von Permafrost-Sequenzen in der Taimyr-Tiefebene (1994-1996) / Christine Siegert, Alexander Yu. Dereviagin. - Kohlenstoff in den arktischen Wüstenböden von Sewernaja Semlja / Eva-Maria Pfeiffer, Mikhail P. Zhurbenko, Dimitry Yu. Bolshiyanov. - Hydrologie, Geochemie und Sedimenttransport in den Flüssen Sibiriens - Das SYSTEM LAPTEV SEA Projekt 1994-1997 / Volker Rachold. - 2. Der Beginn der Lena-Expeditionen 1998-2002. - lnitiierung des Forschungsprojekts Lenadelta: Wissenschaftliche Strategie, Kooperation und Logistik / Volker Rachold, Martin Antonow, Mikhail N. Grigoriev, Dmitry Yu. Bolshiyanov, Eva-Maria Pfeiffer. - Die ersten Jahre der boden- und klimabezogenen Permafrostforschung auf Samoilow und Umgebung (Untersuchungen 1998-2001) / Eva-Maria Pfeiffer, Julia Boike, Günter Stoof, Lars Kutzbach, Mikhail N. Grigoriev, lrina A. Yakshina, Anno N. Kurchatova, Dmitry Yu. Bolshiyanov. - Bykowski-Halbinsel: Die erste Landexpedition mit Fokus auf das Paläoklima / Lutz Schirrmeister, Guido Grosse, Viktor V. Kunitsky, Christine Siegert, Hanno Meyer. - Schiffsexpeditionen von 1998 bis 2002 zur Untersuchung von Erosion und Geomorphologie der Küste mit Dunai, Neptun, Sofron Danilov und Pavel Bashmakov / Volker Rachold, Waldemar Schneider, Mikhail N. Grigoriev, Hans-Wolfgong Hubberten, Felix E. Are, Dmitry Yu. Bolshiyanov. - Untersuchung von Seen auf Arga: Geschichte und Entstehung des Lenadeltas / Georg Schwamborn, Mikhail N. Grigoriev, Volker Rachold, Vladimir E. Tumskoy, Lutz Schirrmeister, Guido Grosse. - Mikrobieller Kohlenstoffumsatz in der Auftauschicht und im Permafrost / Susanne Liebner, Christian Knoblauch, Eva-Maria Pfeiffer, Svetlana Yu. Evgrafova, Dirk Wagner. - Feldarbeit für die Rekonstruktion der Paläoumwelt / Lutz Schirrmeister, Tatyana V. Kuznetsova, Andrei A. Andreev, Frank Kienast, Dmitry Yu. Bolshiyanov. - 3. Prozessstudien zur Permafrostdynamik 2002-2005. - Submarine Permafrostbohrungen während der COAST 2005 Expedition / Volker Rachold, Mikhail N. Grigoriev, Dmitry Yu. Bolshiyanov, Waldemar Schneider. - Die frühe Forschungsstation Insel Samoilow und ihre Erweiterung 2005 / Hans-Wolfgang Hubberten, Julia Boike, Eva-Maria Pfeiffer, Günter Stoof, Alexander Yu. Gukav. - Installation des Samoilow Observatoriums - wissenschaftliches Monitoring von Klimadaten, Permafrostböden und Treibhausgasen (Untersuchungen 2002-2006) / Lars Kutzbach, Christian Wille, Torsten Sachs, David Holl, Günter Stoof Julia Boike, Mikhail N. Grigoriev, Eva-Maria Pfeiffer. - Mikrobieller Stickstoffumsatz in der Auftauschicht und den tieferen Permafrostsedimenten des Lenadeltas / Claudia Fiencke, Tina Sanders, Fabian Beermann, Elena E. Lebedeva, Eva-Maria Pfeiffer. - Geokryologische und paläoökologische Studien an den Küsten der Laptewsee / Lutz Schirrmeister, Christine Siegert, Guido Grosse, Hanno Meyer, Mikhail N. Grigoriev, Viktor V. Kunitsky. - Langzeitbeobachtungen der pelagischen Fauna in Seen und Tümpeln des Lenadeltas / Ekaterina N. Abramova, lrina I. Vishnyakova, Grigory A. Soloviev, Anna A. Abramova. - 4. Umsetzung neuer Forschungsthemen 2007-2012. - Die Dynamik der arktischen Küsten / Frank Günther, Mikhail N. Grigoriev, P. Paul Overduin, Hugues Lantuit, Hans-Wolfgang Hubberten. - Feldarbeit und Erstellung numerischer Modelle von submarinem Permafrost und Gashydraten / Hans-Wolfgang Hubberten, Pier Paul Overduin, Sebastian Wetterich, Mikhail N. Grigoriev. - Permafrostdegradation, Thermokarst und Thermoerosion - Feldforschung auf der Insel Kurungnach / Anne Morgenstern, lrina V Fedorova, Antonina A. Chetverova, Frank Günther, Mathias Ulrich, Fabian Beermann, Sebastian Zubrzycki, Sofia A. Antonova, Samuel Stettner, Julia Boike. - Mit Kettensäge zum Klimamodell - Eiskeile als Winterklima-Archive / Hanno Meyer, Thomas Opel, Alexander Yu. Dereviagin. - Veränderungen nordsibirischer Seen und Baumgrenzen in der Vergangenheit und Gegenwart als Reaktion auf Erwärmung / Ulrike Herzschuh, Luidmila A. Pestryakova, Laura S. Epp, Larisa A. Frolova, Ruslan M. Gorodnichev, Birgit Heim, Florion Jeltsch, Juliane Klemm, Stefan Kruse, Larisa B. Nazarova, Bastian Niemeyer, Anatolii N. Nikolaev, Kathleen R. Stoof-Leichsenring, Ralph Tiedemann, Mareike Wieczoreck, Evgenij S. Zakharov, Heike H. Zimmermann. - Kohlenstoff in Permafrost - Quantifizierung der Menge an organischem Material in Sibirien / Jens Strauss, Lutz Schirrmeister, Sebastian Zubrzycki, Alexander L. Kholodov, Mikhail N. Grigoriev, Viktor V. Kunitsky, Matthias Fuchs, Eva-Maria Pfeiffer, Guido Grosse. - Expeditionen mit Gummibooten und kleinen Flussbooten - Hydrologie und Geomorphologie des Lenadeltas / Dmitry Yu. Bolshiyanov, lrina V Fedorova, Julia Boike. - Mobilisierung und Ablagerung von Kohlenstoff im Lena-Flusssystem / Gesine Mollenhauer, Maria Winterfeld, Boris P. Koch, lrina V. Fedorova. - Holozäne Seen rund um das Lenadelta / Bernhard Diekmann, Boris Biskaborn, Luidmila A. Pestryakova, Dmitry A. Subetto, Dmitry Yu. Bolshiyanov, Ulrike Herzschuh, Georg Schwamborn, Volker Rachold. - Logistisch komplexe Einsätze - Beobachtungen von Energie und Treibhausgasflüssen aus der Luft mittels Helipod / Torsten Sachs, Eric Larmanau, Katrin Kohnert, Andrei Serafimavich. - Lena Expeditionen: Einbindung neuer deutscher Forschungsgruppen / Birgit Heim, Hans-Wolfgang Hubberten, Pier Paul Overduin, lrina V. Fedorova. - Ein Jahrzehnt der Küstenforschung im Lenadelta / lngeborg Bussmann, Dmitry Yu. Bolshiyanov, lrina V Fedorova, Mikhail N. Grigoriev, Alexander Yu. Gukov, Gerhard Kattner, Alexandra Kraberg, Denis V. Moiseev, Pier Paul Overduin, Lasse Sander, Karen H. Wiltshire. - 5. Neue Horizonte für Lena-Expeditionen - Die neue Forschungsstation Insel Samoilow. - Ministerpräsident W. W. Putin besucht die Insel Samoilow (P-Day) / Hanno Meyer, Thomas Opel, Alexander Yu. Dereviagin, Svetlana Yu. Evgrafava, Waldemar Schneider, Alexander S. Makarov, Mikhail N. Grigoriev. - Die neue Forschungsstation Insel Samoilow: Bau, Eröffnungsfeier, Anlage und Betrieb / Mikhail N. Grigoriev, Hans-Wolfgang Hubberten, Igor N. Yeltsov, Anne Morgenstern. - Samoilow in internationalen Programmen und Netzwerken - FLUXNET, GTN-P, INTERACT / Anne Morgenstern, Mikhail N. Grigoriev, Dmitry Yu. Bolshiyanov, Julia Boike, Lars Kutzbach. - Kurzer Überblick über die russisch-deutschen Permafrost-Projekte CARBOPERM und KoPf / Eva-Maria Pfeiffer, Hans-Wolfgang Hubberten, Mikhail N. Grigoriev, Dmitry Yu. Bolshiyanov, Sebastian Zubrzycki, Ulrike Herzschuh, Guido Grosse. - Einsatz von Fernerkundung im Gebiet der Laptewsee / Guido Grosse, Birgit Heim, Sofia Antonova, Julia Boike, Astrid Bracher, Alexey N. Fague, Frank Günther, Thomas Krumpen, Moritz Langer, Anne Morgenstern, Sina Muster, lngmar Nitze, Torsten Sachs. - Multidisziplinäre Studien auf Samoilow und Kurungnach: Geophysik, Fernerkundung, Geologie sowie botanische und Bodenstudien / Igor N. Yeltsov, Alexey N. Faguet, Leonid V. Tsibizov, Vladimir A. Kashirtsev, Vladimir V. Olenchenko, Andrey A. Kartozia, Nikolay N. Lashchinskiy. - Terrestrische Permafrost-Bohrkampagnen: Tiefe Einblicke in die Vergangenheit / Jens Strauss, Mikhail N. Grigoriev, Paul Overduin, Georgii Maximov, Guido Grosse, Alexey N. Fague, Leonid Tsibizov, Lutz Schirrmeister. - Langzeitmessungen der Energie-, Wasser-, und Treibhausgasflüsse zwischen Land und Atmosphäre von 2002 bis heute und darüber hinaus / David Holl, Ju , Contents: Introduction and Background to Terrestrial Expeditions in Siberia / Hans-Wolfgang Hubberten, Dmitry Yu. Bolshiyanov, Mikhail N. Grigoriev, Volker Rachold, Eva-Maria Pfeiffer. - 1. On the Way to the Lena Expeditions 1993-1997. - Lake Sediments on Taymyr and Severnaya Zemlya as a Climate Archive / Pier Paul Overduin, Dmitry Yu. Bolshiyanov, Martin Melles. - First Energy, Water, and Flux Studies of Tundra Soils - Labaz and Levinson-Lessing Lake, Taymyr Peninsula / Eva-Maria Pfeiffer, Julia Boike, Mikhail P. Zhurbenko, Dmitry Yu. Bolshiyanov. - Exploring Permafrost Sequences in the Taymyr Lowland (1994-1996) / Christine Siegert, Alexander Yu. Dereviagin. - Carbon in Arctic Desert Soils of Severnaya Zemlya / Eva-Maria Pfeiffer, Mikhail P. Zhurbenko, Dimitry Yu. Bolshiyanov. - Hydrology, Geochemistry, and Sediment Transport of the Siberian Rivers - The SYSTEM LAPTEV SEA Project 1994-1997 / Volker Rachold. - 2. The Beginning of the Lena Expeditions 1998-2002. - Initiation of the Research Project Lena Delta: Science Strategy, Cooperation, and Logistics / Volker Rachold, Martin Antonow, Mikhail N. Grigoriev, Dmitry Yu. Bolshiyanov, Eva-Maria Pfeiffer. - The First Years of Soil and Climate-Related Permafrost Research on Samoylov Island and Surroundings (Investigations 1998- 2001) / Eva-Maria Pfeiffer, Julia Boike, Günter Stoof, Lars Kutzbach, Mikhail N. Grigoriev, lrina A. Yakshina, Anno N. Kurchatova, Dmitry Yu. Bolshiyanov. - Bykovsky Peninsula: The First Land Expedition with a Focus on Paleoclimate / Lutz Schirrmeister, Guido Grosse, Viktor V. Kunitsky, Christine Siegert, Hanno Meyer. - The 1998-2002 Ship-Based Expeditions for Coastal Erosion and Geomorphological Studies with Dunay, Neptun, Sofron Danilov, and Pavel Bashmakov / Volker Rachold, Waldemar Schneider, Mikhail N. Grigoriev, Hans-Wolfgang Hubberten, Felix E. Are, Dmitry Yu. Bolshiyanov. - Lake Studies on Arga: History and Formation of the Lena Delta / Georg Schwamborn, Mikhail N. Grigoriev, Volker Rachold, Vladimir E. Tumskoy, Lutz Schirrmeister, Guido Grosse. - Microbial Carbon Turnover in the Active Layer and in Permafrost / Susanne Liebner, Christian Knoblauch, Eva-Maria Pfeiffer, Svetlana Yu. Evgrajova, Dirk Wagner. - Fieldwork for Reconstructing the Paleo-Environment / Lutz Schirrmeister, Tatyana V. Kuznetsova, Andrei A. Andreev, Frank Kienast, Dmitry Yu. Bolshiyanov. - 3. Process Studies of Permafrost Dynamics 2002-2006. - Subsea Permafrost Drilling During the COAST 2005 Expedition / Volker Rachold, Mikhail N. Grigoriev, Dmitry Yu. Bolshiyanov, Waldemar Schneider. - The Early Samoylov Station and Its Extension in 2005 / Hans-Wolfgang Hubberten, Julia Boike, Eva-Maria Pfeiffer, Günter Stoof, Alexander Yu. Gukov. - Installation of the Samoylov Observatory - Permafrost-Affected Soils and Greenhouse Gases (Investigations 2002-2006) / Lars Kutzbach, Christian Wille, Torsten Sachs, David Holl, Günter Stoof, Julia Boike, Mikhail N. Grigoriev, Eva-Maria Pfeiffer. - Microbial Nitrogen Turnover in the Active Layer and Deeper Permafrost Sediments of the Lena River Delta / Claudia Fiencke, Tina Sanders, Fabian Beermann, Elena E. Lebedeva, Eva-Maria Pfeiffer. - Geocryological and Paleoenvironmental Studies on the Coasts of the Laptev Sea / Lutz Schirrmeister, Christine Siegert, Guido Grosse, Hanno Meyer, Mikhail N. Grigoriev, Viktor V. Kunitsky. - Long-Term Observations of the Pelagic Fauna in Lakes and Ponds in the Lena Delta / Ekaterina N. Abramova, lrina I. Vishnyakova, Grigory A. Soloviev, Anna A. Abramova. - 4. Implementation of New Research Topics 2007-2012. - Arctic Coastal Dynamics / Frank Günther, Mikhail N. Grigoriev, Pier Paul Overduin, Hugues Lantuit, Hans-Wolfgang Hubberten. - Field Work and Numerical Modelling for Subsea Permafrost and Gas Hydrates / Hans-Wolfgang Hubberten, Pier Paul Overduin, Sebastian Wetterich, Mikhail N. Grigoriev. - Permafrost Degradation, Thermokarst and Thermal Erosion Fieldwork on Kurungnakh Island / Anne Morgenstern, Irina V. Fedorova, Antonina A. Chetverova, Frank Günther, Mathias Ulrich, Fabian Beermann, Sebastian Zubrzycki, Sofia A. Antonova, Samuel Stettner, Julia Boike. - With the Chainsaw to Climate Modelling - Ice Wedges as a Winter Climate Archive / Hanno Meyer, Thomas Opel, Alexander Yu. Dereviagin. - Past and Present Treeline and Lake Changes in Northern Siberia in Response to Warming / Ulrike Herzschuh, Luidmila A. Pestryakova, Laura S. Epp, Larisa A. Frolova, Ruslan M. Gorodnichev, Birgit Heim, Florion Jeltsch, Juliane Klemm, Stefan Kruse, Larisa B. Nazarova, Bastian Niemeyer, Anatolii N. Nikolaev, Kathleen R. Stoof-Leichsenring, Ralph Tiedemann, Mareike Wieczoreck, Evgenij S. Zakharov, Heike H. Zimmermann. - Organic Matter Matters- Quantifying the Amount of Carbon in Northern Siberia / Jens Strauss, Lutz Schirrmeister, Sebastian Zubrzycki, Alexander L. Kholodov, Mikhail N. Grigoriev, Viktor V. Kunitsky, Matthias Fuchs, Eva-Maria Pfeiffer, Guido Grosse. - Expeditions with Rubber Boats and Small River Vessels - Hydrology and Geomorphology of the Lena Delta / Dmitry Yu. Bolshiyanov, lrina V Fedorova, Julia Boike. - Mobilization and Deposition of Carbon in the Lena River System / Gesine Mollenhauer, Maria Winterfeld, Boris P. Koch, lrina V. Fedorova. - Holocene Lakes Around the Lena Delta / Bernhard Diekmann, Boris Biskaborn, Luidmila A. Pestryakova, Dmitry A. Subetto, Dmitry Yu. Bolshiyanov, Ulrike Herzschuh, Georg Schwamborn, Volker Rachold. - Complex Logistical Operations - Airborne Energy and Greenhouse Gas Flux Observations by Helipod / Torsten Sachs, Eric Larmanau, Katrin Kohnert, Andrei Serafimavich. - Lena Expeditions: Integration of New German Research Groups / Birgit Heim, Hans-Wolfgang Hubberten, Pier Paul Overduin, lrina V. Fedorova. - A Decade of Coastal Research in the Lena Delta / lngeborg Bussmann, Dmitry Yu. Bolshiyanov, lrina V Fedorova, Mikhail N. Grigoriev, Alexander Yu. Gukov, Gerhard Kattner, Alexandra Kraberg, Denis V. Moiseev, Pier Paul Overduin, Lasse Sander, Karen H. Wiltshire. - 5. New Horizons for Lena Expeditions - The New Research Station Samoylov Island. - Prime Minister V. V. Putin Visits Samoylov Island (P-Day) / Hanno Meyer, Thomas Opel, Alexander Yu. Dereviagin, Svetlana Yu. Evgrafava, Waldemar Schneider, Alexander S. Makarov, Mikhail N. Grigoriev. - The New Research Station Samoylov Island: Construction, Opening Ceremony, Facilities, and Operation / Mikhail N. Grigoriev, Hans-Wolfgang Hubberten, Igor N. Yeltsov, Anne Morgenstern. - Samoylov in International Programs and Networks - FLUX NET, GTN-P, INTERACT / Anne Morgenstern, Mikhail N. Grigoriev, Dmitry Yu. Bolshiyanov, Julia Boike, Lars Kutzbach. - Short Overview of the Russian-German Permafrost Projects CARBOPERM and KoPf / Eva-Maria Pfeiffer, Hans-Wolfgang Hubberten, Mikhail N. Grigoriev, Dmitry Yu. Bolshiyanov, Sebastian Zubrzycki, Ulrike Herzschuh, Guido Grosse. - Application of Remote Sensing in the Laptev Sea Region / Guido Grosse, Birgit Heim, Sofia Antonova, Julia Boike, Astrid Bracher, Alexey N. Fague, Frank Günther, Thomas Krumpen, Moritz Langer, Anne Morgenstern, Sina Muster, lngmar Nitze, Torsten Sachs. - Multidisciplinary Studies on Samoylov and Kurungnakh: Geophysics, Remote Sensing, Geology, Botanical, and Soil Studies / Igor N. Yeltsov, Alexey N. Faguet, Leonid V. Tsibizov, Vladimir A. Kashirtsev, Vladimir V. Olenchenko, Andrey A. Kartozia, Nikolay N. Lashchinskiy. - Deep lnsights into the Past Terrestrial Permafrost Drilling Campaigns / Jens Strauss, Mikhail N. Grigoriev, Paul Overduin, Georgii Maximov, Guido Grosse, Alexey N. Fague, Leonid Tsibizov, Lutz Schirrmeister. - Long-Term Measurements of Land-Atmosphere Fluxes of Energy, Water, and Greenhouse Gases from 2002 until Today and Beyond / David Holl, Julia Boike, Torsten Sachs, Peter Schreiber, Niko Bornemann, Christian Wille, Eva-Maria Pfeiffer, Irina V. Fedorova, Lars Kutzbach. - Carbon Turnover of Thawing Permafrost in the Lena Delta / , Russische Ausgabe in kyrillischer Schrift

Note: Dissertation, Universität Potsdam, 2019 , TABLE OF CONTENTS Abstract Zusammenfassung Table of contents List of figures List of tables List of abbreviations 1 Introduction 1.1 Scientific background and motivation 1.1.1 Permafrost degradation 1.1.2 Snow cover 1.1.3 Vegetation phenology 1.2 Remote sensing of rapid changes 1.2.1 SAR remote sensing 1.2.2 TerraSar-X 1.3 Data and methods 1.4 Aims and objectives 1.5 Study areas and data 1.6 Thesis structure and author contributions 1.6.1 Chapter 2 – Monitoring inter-and intra-seasonal dynamics of rapidly degrading ice-rich permafrost riverbanks in the Lena Delta with TerraSAR-X time series 1.6.2 Chapter 3 – TerraSAR-X time series fill a gap in spaceborne snowmelt monitoring of small Arctic catchments 1.6.3 Chapter 4 – Estimation of Arctic tundra vegetation phenology with TerraSAR-X 2 Monitoring inter-and intra-seasonal dynamics of rapidly degrading ice-rich permafrost riverbanks in the Lena Delta with TerraSAR-X time series 2.1 Abstract 2.2 Introduction 2.3 Study area 2.4 Data and methods 2.4.1 SAR data and processing 2.4.2 Automated cliff-top line extraction from SAR data 2.4.3 Quantification of cliff-top erosion with the Digital Shoreline Analysis System 2.4.4 Cliff top mapping from optical satellite data 2.4.5 In-situ observations of cliff top erosion 2.4.6 Climate data 2.4.7 Statistical data analysis 2.5 Results 2.5.1 TSX erosion versus in-situ and optical datasets 2.5.2 Inter-and intra-annual cliff-top erosion and climate data 2.5.3 Backscatter time series 2.6 Discussion 2.6.1 Inter-annual dynamics of cliff-top erosion 2.6.2 Intra-annual dynamics of cliff-top erosion 2.6.3 Backscatter dynamics of tundra and cliff surfaces 2.7 Conclusions 2.8 Acknowledgments 3 TerraSAR-X time series fill a gap in spaceborne snowmelt monitoring of small Arctic catchments 3.1 Abstract 3.2 Introduction 3.3 Study area 3.4 Data and methods 3.4.1 SAR satellite data 3.4.2 Optical satellite data 3.4.3 In-situ time-lapse camera data 3.4.4 Snow Cover Extent from TerraSAR-X 3.4.5 Snow Cover Extent from Landsat 8 3.4.6 Accuracy assessment of TerraSAR-X Snow Cover Extent 3.4.7 Fractional Snow Cover time series analysis 3.5 Results 3.5.1 Evaluation of TSX Snow Cover Extent 3.5.2 Time series of Fractional Snow Cover in all catchments 3.5.3 Time series of Fractional SnowCover in small catchments 3.6 Discussion 3.6.1 Spatiotemporal monitoring of snowmelt dynamics using TSX 3.6.2 Technical considerations for using TSX for wet snow detection 3.7 Conclusions 3.8 Acknowledgements 3.9 Appendix 4 Relationships between X-Band SAR and vegetation phenology in a low Arctic ecosystem 4.1 Abstract 4.2 Introduction 4.3 Study area 4.4 Data and methods 4.4.1 In-situ time-lapse phenological cameras 4.4.2 Time-lapse image analysis 4.4.3 SAR satellite data 4.4.4 Backscatter and coherence time series 4.4.5 In-situ vegetation and climate data 4.5 Results 4.5.1 Phenocams 4.5.2 Backscatter dynamics 4.5.3 Coherence dynamics 4.6 Climate data 4.7 Backscatter and vegetation height 4.8 Discussion 4.9 Conclusion 4.10 Acknowledgments 5 Synthesis 5.1 Rapid permafrost disturbance 5.2 Snowmelt dynamics 5.3 Arctic tundra vegetation phenology 5.4 Seasonality and complementarity of TSX 5.5 Limitations and technical considerations 5.6 Key findings and outlook References Acknowledgements

Note: Zugleich: Dissertation, Christian-Albrechts-Universität zu Kiel, 1999 , INHALTSVERZEICHNIS 1. Einleitung 1.1 Kenntnisstand und offene Fragen 1.2 Fragestellung und Ziele dieser Arbeit 2. Umweltbedingungen in den Arbeitsgebieten 2.1 Hydrographie, Eisverhältnisse und NAO 2.2 Zur Variation von Wassertiefe und Breite der Dänemarkstraße und zur Vereisung Islands während des letzten Glazials 3. Methoden 3.1 Auswahl der Kernstationen 3.2 Probennahme und Analysen (Übersicht) 3.3 Zur Rekonstruktion von Paläobedingungen im Oberflächenwasser Zur Aussage stabiler Isotopenverhältnisse in planktischen Foraminiferen Zur Messung stabiler Isotopenverhältnisse Zur Massenspektrometrie Zur Rekonstruktion von Oberflächentemperaturen Alkane und Alkohole als Maß für Staubeintrag Eistranspmtiertes Material und vulkanische Aschen 3.4 Zur Rekonstruktion von Paläobedingungen im Zwischen-/ Tiefenwasser Häufigkeit von Cibicides- und anderen benthischen Arten (inkl. Taxonomie) Stabile Isotopenverhältnisse in benthischen Foraminiferen 3.5 AMS 14C-Datierungen Probenreinigung 3. 6 Hauptelementanalysen von vulkanischen Asche-Leithorizonten 3. 7 Geomagnetische Meßgrößen und magnetische Suszeptibiltät 3.8 Techniken zur Spektralanalyse 4. Methodische Ergebnisse 4.1 Zum Einfluß der Probenreinigung auf δ18O-/ δ13C-Werte 4.2 Probleme bei der langfristigen Reproduzierbarkeit von δ18O-Zeitreihen 4.3 Einfluß der Korngröße und Artendefinition planktischer Foraminiferen auf SST-Rekonstruktionen in hohen Breiten 4.4 Vergleich der stabilen Isotopenwerte von Cibicides lobatulus und Cibicidoides wuellerstorfi 5. Stratigraphische Grundlagen und Tiefenprofile der Klimasignale 5.1 Stratigraphische Korrelation zwischen parallel-gekernten GKG- und SL-/KL-Profilen 5.2 Flanktische δ18O-/ δ13C-Kurven, 14C-Alter und biostratigraphische Fixpunkte Westliches Islandbecken Kern PS2644 Kern PS2646 Kern PS2647 Kern 23351 Vøring-Plateau Kern 23071 Kern 23074 5.3 Benthische δ18O-/ δ13C-Werte in Kern PS2644 5.4 Siliziklastische Sedimentkomponenten: Eistransportiertes Material Westliches Islandbecken Kern PS2644 Kern PS2646 Kern PS2647 Vøring-Plateau Kern 23071 Kern 23074 5.5 Vulkanische Glasscherben in Kern PS2644: Wind- und Eiseintrag 5.6 Geochemie und Alter einzelner Tephralagen als Leithorizonte Westliches Islandbecken Kern PS2644 Kern PS2646 Kern PS2647 Vøring-Plateau Kern 23071 Kern 23074 5.7 Magnetische Suszeptibilität in den Kernen PS2644, PS2646 und PS2647 Kern PS2644 Kern PS2646 und PS2647 5.8 Geomagnetische Feldintensität und Richtungsänderungen in Kern PS2644 5.9 Variation von Planktonfauna und -flora Westliches Islandbecken: Kern PS2644 Kern PS2646 und PS2647 Vøring-Plateau: Kern 23071 und 23074 5.10 Benthische Foraminiferen in Kern PS2644 6. Entwicklung von Temperatur und Salzgehalt nördlich der Dänemark-Straße 6.1 Variation der Oberflächentemperatur nach Planktonforaminiferen 6.2 Variation der Oberflächentemperatur nach Uk37 6.3 Variation der Oberflächensalinität 7. Die Feinstratigraphie von Kern PS2644 als Basis für eine Eichung der 14C-Altersskala 22 - 55 ka 7.1 Korrelation zwischen den Klimasignalen in Kern PS2644 und der GISP2-Klimakurve zum Kalibrieren der 14C-Alter und Erstellen eines Altersmodells Tephrachronologische Marker Korrelationsparameter und -regeln Sonderfälle/ Probleme bei der Korrelation 7.2 Alters-stratigraphische Korrelation der Klimakurven von Kern 23071 und 23074 7.3 Variation der Altersanomalien zwischen 20 und 55 14C-ka 7.4 Variabilität des planktischen 14C-Reservoiralters in Schmelzwasserbeeinflußten Seegebieten Variation der planktischen 14C-Alter unmittelbar an der Basis von Heinrich-Ereignis 4 Unterschiede zwischen planktischen und benthischen 14C-Altern in der westlichen Islandsee. Zur Erklärung der inversen Altersdifferenzen 7.5 Differenz zwischen 14C- und Kalenderalter: Zeitliche Variation unter Einfluß des Erdmagnetfeldes - Modell und Befund 7.6 Sedimentationsraten der Kerne 23071, 23074 und PS2644 nach dem GISP2-Altersmodell Vøring-Plateau: Kerne 23071 und 23074 Südwest-Islandsee: Kern PS2644 8. Klimaoszillationen im Europäischen Nordmeer in der Zeit und Frequenzdomäne 8.1 "Der Einzelzyklus" in den Klimakurven von Kern PS2644 8.2 Zur Veränderlichkeit der Warm- und Kaltextreme sowie Zyklenlänge Besonderheiten in der Zyklenlänge Variation der Kalt-(Stadiale) Variation der Interstadiale 8.3 Periodizitäten der Klimasignale im Frequenzband der D.-Oe.-Zyklen. Der D.-Oe.-Zyklus von 1470 J., seine Multiplen und harmonischen Schwingungen Weitere Frequenzen: 1000-1150 Jahre- und 490- 510 Jahre-Zyklizitäten Höhere Frequenzen im Bereich von Jahrhunderten und Dekaden 8.4 Phasenbeziehungen und (örtliche) Steuemngsmechanismen der Dansgaard-Oeschger-Zyklen 9. Schlußfolgerungen Danksagung Literaturverzeichnis Anhang

Note: Zugleich: Dissertation, Freie Unversität Berlin, [ca. 1963] , INHALTSVERZEICHNIS PROBLEMSTELLUNG UND ZIELSETZUNG 1. BEMERKUNGEN ZUM BEOBACHTUNGSGELÄNDE UND ZUM BEOBACHTUNGSMATERIAL 1.1 Das Beobachtungsgelände 1.2 Das Beobachtungsmaterial 2. HOMOGENITÄTSBETRACHTUNGEN 2.1 Temperatur 2.2 Niederschlag 2.3 Wind 2.4 Sonnenschein und Bewölkung 3. TEMPERATURVERHÄLTNISSE 3.1 Monats- und Jahreswerte 3.2 Tageswerte 3.3 Pentadenwerte 3.4 Häufigkeitsbetrachtungen 3.5 Interdiurne Veränderlichkeit 3.6 Der tägliche Gang 3.7 Vorkommen bestimmter Schwellenwerte 3.71 Frost- und Eistage 3.72 Sommer- und Tropentage 4. DER WASSERGEHALT DER LUFT 4.1 Monats- und Jahreswerte 4.2 Tageswerte 4.3 Häufigkeitsbetrachtungen 4.4 Interdiurne Veränderlichkeit 4.5 Der tägliche Gang 5. BEWÖLKUNGSVERHÄLTNISSE 5.1 Monats- und Jahreswerte 5.2 Tageswerte 5.3 Häufigkeitsbetrachtungen 5.4 Der tägliche Gang 5.5 Heitere und trübe Tage 5.6 Nebel 6. SONNENSCHEIN 6.1 Monats- und Jahreswerte 6.2 Tageswerte 6.3 Der tägliche Gang 7. NIEDERSCHLAGSVERHÄLTNISSE 7.1 Monats- und Jahreswerte 7.2 Niederschlagsbereitschaft 7.3 Tageswerte 7.4 Der tägliche Gang 7.5 Häufigkeitsbetrachtungen 7.6 Niederschlags- und Trockenperioden 7.7 Niederschlag und Wind· 7.8 Schneeverhältnisse 7.81 Schneefall und Schneedecke 7.82 Schneehöhe 7.9 Gewitter 8. WINDVERHÄLTNISSE 8.1 Windrichtung 8.2 Windgeschwindigkeit 8.21 Der jährliche Gang 8.22 Häufigkeitsbetrachtungen 8.23 Sturmtage und Windstillen 8.24 Der tägliche Gang 9.ZUSAMMENFASSUNG VERZEICHNIS DER TEXTTABELLEN VERZEICHNIS DER ABBILDUNGEN LITERATURVERZEICHNIS TABELLENANHANG

Note: Contents: 1 The ecosystem of Kongsfjorden, Svalbard / Haakon Hop and Christian Wiencke Part I. Atmospheric conditions 2 The atmosphere above Ny-Ålesund : climate and global warming, ozone and surface UV radiation / Marion Maturilli, Inger Hanssen-Bauer, Roland Neuber, Markus Rex, and Kåre Edvardsen Part II. Oceanography, sea ice and underwater light regime 3 The Kongsfjorden Transect : seasonal and inter-annual variability in hydrography / Vigdis Tverberg, Ragnheid Skogseth, Finlo Cottier, Arild Sundfjord, Waldemar Walczowski, Mark E. Inall, Eva Falck, Olga Pavlova, and Frank Nilsen 4 Changes in sea-ice extent and thickness in Kongsfjorden, Svalbard (2003-2016) / Olga Pavlova, Sebastian Gerland, and Haakon Hop 5 The underwater light climate in Kongsfjorden and its ecological implications / Alexey K. Pavlov, Eva Leu, Dieter Hanelt, Inka Bartsch, Ulf Karsten, Stephen R. Hudson, Jean-Charles Gallet, Finlo Cottier, Jonathan H. Cohen, Jørgen Berge, Geir Johnsen, Marion Maturilli, Piotr Kowalczuk, Sławomir Sagan, Justyna Meler, and Mats A. Granskog Part III. Pelagic production, phytoplankton and zooplankton 6 Phytoplankton seasonal dynamics in Kongsfjorden, Svalbard and the adjacent shelf / Else N. Hegseth, Philipp Assmy, Józef M. Wiktor, Józef Wiktor Jr., Svein Kristiansen, Eva Leu, Vigdis Tverberg, Tove M. Gabrielsen, Ragnheid Skogseth, and Finlo Cottier 7 Zooplankton in Kongsfjorden (1996-2016) in relation to climate change / Haakon Hop, Anette Wold, Mikko Vihtakari, Malin Daase, Slawomir Kwasniewski, Marta Gluchowska, Silke Lischka, Friedrich Buchholz and Stig Falk-Petersen Part IV. Benthic microbes, macroalgae and fauna 8 Living on cold substrata : new insights and approaches in the study of microphytobenthos ecophysiology and ecology in Kongsfjorden / Ulf Karsten, Iris Schaub, Jana Woelfel, Duygu S. Sevilgen, Carolin Schlie, Burkhard Becker, Angela Wulff, Martin Graeve, and Heiko Wagner 9 Biodiversity of benthic macro- and microalgae from Svalbard with special focus on Kongsfjorden / Stein Fredriksen, Ulf Karsten, Inka Bartsch, Jana Woelfel, Miriam Koblowsky, Rhena Schumann, Siri Røang Moy, Robert S. Steneck, Józef M. Wiktor, Haakon Hop, and Christian Wiencke 10. Kelps and environmental changes in Kongsfjorden : Stress perception and responses / Kai Bischof, Christian Buschbaum, Stein Frederiksen, Francisco J. L. Gordillo, Sandra Heinrich, Carlos Jiménez, Cornelius Lütz, Markus Molis, Michael Y. Roleda, Max Schwanitz, and Christian Wiencke 11. Ecological drivers of and responses by Arctic benthic communities, with an emphasis on Kongsfjorden, Svalbard / Markus Molis, Frank Beuchel, Jürgen Laudien, Maria Włodarska-Kowalczuk, and Christian Buschbaum Part V. Arctic fjord ecosystem model and autonomous marine observatories. 12. Outline of an Arctic fjord ecosystem model for Kongsfjorden-Krossfjorden, Svalbard / Pedro Duarte, Jan Marcin Weslawski, and Haakon Hop 13. Autonomous marine observatories in Kongsfjorden, Svalbard / Haakon Hop, Finlo Cottier, and Jørgen Berge Part VI. Kongsfjorden as harbinger of the future Arctic 14. Kongsfjorden as harbinger of the future Arctic : knowns, unknowns and research priorities / Kai Bischof, Peter Convey, Pedro Duarte, Jean-Pierre Gattuso, Maria Granberg, Haakon Hop, Clara Hoppe, Carlos Jiménez, Leonid Lisitsyn, Brezo Martinez, Michael Y. Roleda, Peter Thor, Józef M. Wiktor, and Geir Wing Gabrielsen

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

Note: Inhaltsverzeichnis Titel Zum Buch Über die Autoren Widmung Impressum Inhalt Vorwort 1. Das Klimaproblem und die Klimapolitik Welche Risiken birgt der Klimawandel? Was ist mit der Vermeidung gefährlichen Klimawandels gemeint? Internationale Klimapolitik als Wette 2. Die Bestandsaufnahme der Klimapolitik Die Entwicklung der Emissionen Das Wirtschafts- und Bevölkerungswachstum Die Renaissance der Kohle und das Angebot fossiler Energieträger Abholzung und Landnutzung Energieeffizienz und erneuerbare Energien 3. Ziele und Wege der Klimapolitik Das 2 °C-Ziel als langfristige Klimapolitik Die Pfade der Transformation Dem technischen Fortschritt eine neue Richtung geben Die Kosten und Risiken des Klimaschutzes Wachstumsverzicht und Klimaschutz Anpassung - auch bei erfolgreicher Klimapolitik unvermeidlich Solar Radiation Management - der letzte Pfeil im Köcher? 4. Instrumente und Institutionen der Klimapolitik Ein Preis für Emissionen und andere Politikinstrumente Warum wir internationale Klimapolitik benötigen Das Paradoxon internationaler Vereinbarungen Die internationalen Verhandlungen Nach Paris: Vorschläge für die Ausgestaltung der internationalen Klimapolitik Die Klimapolitik der Europäischen Union Die deutsche Energiewende und der Klimaschutz Klimapolitik, Ungleichheit und Armutsbekämpfung 5. Die Rolle der Wissenschaft in der Klimapolitik Der Weltklimarat (IPCC) Der IPCC und die Modelle der wissenschaftlichen Politikberatung Die künftigen Herausforderungen für den IPCC Narrative der Klimapolitik Ausblick Weiterführende Literatur Quellen für Daten und Grafiken Register

Note: Dissertation, Universität Potsdam, 2017 , Contents Abstract Kurzfassung Contents 1. List of figures 2. List of tables Chapter 1. General introduction 1. Motivation 2. Scientific background 3. Objectives of the thesis 4. Thesis outline Chapter 2. Manuscript 1: Treeline dynamics in Siberia under changing climates as inferred from an individual-based model for Larix 1. Abstract 2. Introduction 3. Material and Methods 4. Results 5. Discussion 6. Acknowledgements Chapter 3. Manuscript 2: Field and simulation data reveal dissimilar responses of Larix gmelinii stands to increasing temperature across the Siberian treeline ecotone 1. Abstract 2. Introduction 3. Methods 4. Results 5. Discussion 6. Acknowledgements Chapter 4. Manuscript 3: High gene flow and complex treeline dynamics on the Taymyr Peninsula (north-central Siberia), revealed by nuclear microsatellites of Larix 1. Abstract 2. Introduction 3. Materials and methods 4. Results 5. Discussion 6. Acknowledgements Chapter 5. Manuscript 4: Dispersal distances at treeline in Siberia - genetic guided model improvement 1. Abstract 2. Introduction 3. Methods 4. Results 5. Discussion 6. Acknowledgements Chapter 6. Synopsis 1. Towards a better understanding of Siberian treeline dynamics 2. Methodological challenges to reconstruct and predict the treeline advance 3. Conclusions 4. Outlook Appendix 1. Supplementary information for manuscript 1 (Chapter 2) 2. Supplementary information for manuscript 2 (Chapter 3) 3. Supplementary information for manuscript 3 (Chapter 4) 4. Supplementary information for manuscript 4 (Chapter 5) Bibliography Acknowledgements - Danksagung Declaration

Note: Dissertation, Universität Potsdam, 2015 , Table of contents Preface Table of contents Summary Zusammenfassung 1. Introduction 1.1. Environmental conditions on past and present Mars 1.2. Detection of methane on Mars 1.3. Methanogenic archaea 1.4. Description of study sites 1.5. Aims and approaches 1.6. Overview of the publications 2. Publication I: Methanosarcina soligelidi sp. nov., a desiccationandfreeze-thaw-resistant methanogenic archaeon from a Siberianpermafrost-affected soil 3. Publication II: Methanobacterium movilense sp. nov.,ahydrogenotrophic, secondary-alcohol-utilizing methanogen fromthe anoxic sediment of a subsurface lake 4. Publication III: Influence of Martian Regolith Analogs on the activityand growth of methanogenic archaea,with special regard to long-term desiccation 5. Publication IV: Laser spectroscopic real time measurements ofmethanogenic activity under simulated Martian subsurface conditions 6. Synthesis and Conclusion 6.1. Synthesis 6.2. Conclusion and future perspectives 7. References 8. Acknowledgments

Note: Dissertation, Universität Potsdam, 2017 , Content List of Abbreviations List of Figures List of Tables Summary Zusammenfassung Motivation Chapter 1 1. Scientific background 1.1 Late Quaternary climate changes and treeline transition in northern Siberia 1.2 Natural archives and proxies to assess vegetation history 1.3 Study area 1.3 Objectives of the thesis 1.4 Thesis outline 1.4.1 Chapters and manuscripts 1.4.2 Author's contribution 1.4.2.1 Manuscript I - published 1.4.2.2 Manuscript II - submitted 1.4.2.3 Manuscript III - prepared for submission Chapter 2 2. Manuscript I: Sedimentary ancient DNA and pollen reveal the composition of plant organic matter in Late Quaternary permafrost sediments of the Buor Khaya Peninsula (north-eastern Siberia) 2.1 Abstract 2.2 Introduction 2.3 Geographical settings 2.4 Material and methods 2.4.1 Core material 2.4.2 Subsampling of the permafrost core 2.4.3 Molecular genetic laboratory work 2.4.4 Analysis of sequence data and taxonomic assignments 2.4.5 Pollen sample treatment and analysis 2.4.6 Statistical analyses and visualization 2.5 Results 2.5.1 SedaDNA 2.5.1.1 SedaDNA of terrestrial plants 2.5.1.2 SedaDNA of swamp and aquatic plants 2.5.1.3 SedaDNA of bryophytes and algae 2.5.2 Pollen 2.5.2.1 Pollen of terrestrial plants 2.5.2.2 Pollen and spores of swamp and aquatic plants 2.5.2.3 Spores and algae 2.5.3 Ratios of terrestrial to swamp and aquatic taxa and Poaceae to Cyperaceae 2.6 Discussion 2.6.1 Quality and proxy value of sedaDNA and pollen data 2.6.2 Environmental conditions during the pre-LGM (54-51 kyr BP, 18.9-8.35 m) and composition of deposited organic matter 2.6.3 Environmental conditions during the post-LGM (11.4-9.7 kyr BP (13.4-11.1 cal kyr BP)) and composition of deposited organic matter 2.7 Conclusions 2.8 Acknowledgements Chapter 3 3. Manuscript II: Genetic variation of larches at the Siberian tundra-taiga ecotone inferred from the assembly of chloroplast genomes and mitochondrial sequences 3.1. Abstract 3.2. Introduction 3.3. Material and methods 3.3.1 Plant material 3.3.2 DNA isolation and sequencing 3.3.3 Sequence processing and de novo assembly 3.3.4 Chloroplast genome assembly, annotation and variant detection 3.3.5 Mitochondrial sequences 3.3.6 Analyses of genetic variation 3.4 Results 3.4.1 Chloroplast genome structure and genetic variation 3.4.2 Mitochondrial sequences and genetic variation 3.5 Discussion 3.5.1 De novo assembly and genetic variation of chloroplast genomes and mitochondrial sequences 3.5.2 The distribution of genetic variation at the tundra-taiga ecotone 3.6 Conclusions 3.7 Acknowledgements Chapter 4 4. Manuscript III: The history of tree and shrub taxa and past genetic variation of larches on Bol'shoy Lyakhovsky Island (New Siberian Archipelago) since the last interglacial uncovered by sedimentary ancient DNA 4.1 Abstract 4.2 Introduction 4.3 Materials and methods 4.3.1 Geographic setting 4.3.2 Core material 4.3.2.1 Core L14-02: Yedoma Ice Complex 4.3.2.2 Core L14-03: Thermo terrace 4.3.2.3 Core L14-04 and hand-pieces L14-04B and L14-04C: Thermo terrace including Eemian deposits 4.3.2.4 Core L14-05: Alas 4.3.3 Core sub-sampling 4.3.4 Molecular genetic laboratory work 4.3.4.1 Sedimentary ancient DNA metabarcoding approach 4.3.4.2 Specific amplification of Larix from sedimentary ancient DNA 4.3.5 Filtering of Illumina sequencing data and taxonomic assignments 4.3.6 Statistical analyses and visualization 4.3.7 Geochronology 4.4. Results 4.4.1 Overall composition of the DNA metabarcoding data 4.4.2 Terrestrial vegetation composition 4.4.2.1 Core L14-02: Late Pleistocene Yedoma Ice Complex 4.4.2.2 L14-03: Deeper late Pleistocene deposits 4.4.2.3 L14-04 Thermo terrace including Eemian deposits 4.4.2.4 Core L14-05: Alas with Holocene lake deposits and taberits of the Yedoma Ice Complex 4.4.2.5 The multivariate structure of the terrestrial vegetation among samples and cores 4.4.3 Genetic variation ofsediment-derived Larix sequences 4.5 Discussion 4.5.1 Tree taxa in the sedaDNA record - where do they come from? 4.5.2 Terrestrial plant community changes of warm phases since the last interglacial 4.5.3 Past genetic diversity of larch populations on Bol'shoy Lyakhovsky Island 4.6 Conclusion 4.7 Acknowledgements Chapter 5 5. Synopsis 5.1 The proxy potential of sedaDNA in paleobotanical reconstructions from sedimentary deposits 5.1.1 Combining sedaDNA and pollen to assess plant diversity and vegetation composition 5.1.2 Current limits and opportunities of sedaDNA approaches 5.2 Using genomic data to trace modern and past treeline dynamics 5.2.1 Modern genomic variation at the Siberian treeline 5.2.2 PCR-based markers for paleoenvironmental genetics 5.3 Terrestrial plant community changes and treeline dynamics in north-eastern Siberia since the last interglacial 5.3.1 Vegetation changes in north-eastern Siberia since the last interglacial 5.3.2 Implications for treeline dynamics 5.4 Conclusion 5.5 Outlook Appendix 1. Supplementary material for Manuscript I (Chapter 2) 2. Supplementary material for Manuscript II (Chapter 3) 3. Supplementary material for Manuscript III (Chapter 4) References Acknowledgements Erklärung

Note: Inhaltsverzeichnis Kurzfassung Abstract 1 EINFÜHRUNG 2 GRUNDLAGEN 2.1 Allgemeine Zirkulation 2.2 Barokline Instabiltät 2.3 Horizontale und vertikale Wellenausbreitung 2.4 Die Rolle der Arktis im Klimasystem 2.5 Einfluss des klimatischen Wandels in der Arktis auf die mittleren Breiten 2.6 Atmosphärisches Energiespektrum und Skalenwechselwirkung 3 DATEN UND METHODEN 3.1 Verwendete Reanalyse- und Modelldaten 3.1.1 ERA-Interim 3.1.2 AFES 3.1.3 Aufteilung der verwendeten Daten in Zeiträume mit hoher und niedriger Meereisbedeckung 3.2 Methoden 3.2.1 Instabilitätsanalyse für einen zonalgemittelten Grundzustand 3.2.2 Identifikation bevorzugter großskaliger Zirkulationsmuster 3.2.3 Energie- und Enstrophiespektren 3.2.4 Statistische Testverfahren 4 ERGEBNISSE 4.1 Instabilitätsanalyse für einen zonalgemittelten Grundzustand . 4.1.1 Klimatologie ERA-Interim und AFES 4.1.2 Sensititvitätsstudie 4.2 Identifikation bevorzugter großskaliger Zirkulationsmuster 4.2.1 September 4.2.2 Oktober 4.2.3 November 4.2.4 Dezember 4.2.5 Januar 4.2.6 Februar 4.2.7 Zugehörige synoptisch-skalige Aktivität und 2m-Temperatur 4.3 Kinetische Energiespektren und nichtlineare Wechselwirkungen 4.3.1 Kinetische Energiespektren 4.3.2 Enstrophiespektren 4.3.3 Nichtlineare Energiewechselwirkungen, Energieflüsse und Enstrophieflüsse 5 ZUSAMMENFASSUNG UND AUSBLICK Tabellenverzeichnis Abbildungsverzeichnis Variablen und Symbole Literaturverzeichnis Danksagung Anhang A.1 Hough-Funktionen und vertikale Strukturfunktionen A.2 Zugeordnete Legendre-Polynome und Kugelflächenfunktionen Eidesstattliche Erklärung

Note: Dissertation, Universität Potsdam, 2020 , CONTENTS 1 Introduction 1.1 Context: A rapidly changing Arctic 1.1.1 Documentation of recent changes in the Arctic 1.1.2 Research relevance 1.1.3 Objective: Svalbard as a hotspot for climate change 1.2 Physical Background 1.2.1 Radiation and surface energy balance 1.2.2 Peculiarities of the Arctic climate system 1.2.3 Role of atmospheric circulation 1.3 The regional setup on Svalbard 2 data and methods 2.1 Data description 2.1.1 Era-Interim atmospheric reanalysis 2.1.2 Svalbard Station Meteorology 2.1.3 Sea Ice Extent 2.1.4 Ocean data products 2.1.5 FLEXTRA Trajectories 2.2 Statistical Methods 2.2.1 Trend estimation 2.2.2 Correlation 2.2.3 Coefficient of Determination 3 state of surface climate parameters: pan-svalbard differences 3.1 Motivation 3.2 Surface air temperature 3.2.1 Annual cycle 3.2.2 Annual temperature range 3.2.3 Long-term trends 3.3 Fjord Sea Ice coverage 3.3.1 Climatology 3.3.2 Sea ice cover trends 3.3.3 Regional classification across Svalbard 3.3.4 Drivers of regional differences 3.4 Discussion and Conclusion 3.5 Current state of climate projections for the Svalbard region 4 Air mass back trajectories 4.1 Methodology 4.2 Winter 4.2.1 Source Regions of Ny-Ålesund Air 4.2.2 Circulation changes 4.2.3 Quantification of Advective Warming 4.3 Summer 4.3.1 Source Regions of Ny-Ålesund Air 4.3.2 Circulation changes 4.3.3 Quantification of advective cooling 4.3.4 Observational Case Study: May/June 2017 4.4 Discussion and Conclusion 5 Changing drivers of the arctic near surface temperature budget 5.1 Winter 5.2 Summer 5.3 Summary 6 Summary and conclusion A Details on calculations A.1 SLP composite Index A.2 Derivation of coefficient of determination A.3 Temperature effect of changing source regions over time B Supplementary figures Bibliography

Note: Inhalt Vorwort Ein Blick zurück - für den Blick nach vorn / Günter Miehlich, Eva-Maria Pfeiffer Böden im Klimasystem Energie- und Stoffflüsse zwischen Böden und der Atmosphäre in Feuchtgebieten verschiedener Klimazonen / Lars Kutzbach, David Holl, Norman Rößger, Norman Rüggen, Eva-Maria Pfeiffer Kohlenstofffreisetzung aus Permafrostböden - eine Gefahr für unser Klima? / Christian Knoblauch, Sebastian Zubrzycki, Eva-Maria Pfeiffer Kleinräumige Varianz von Stickstoff-Umsatz und Stickstoff-Limitierung in Permafrostböden / Claudia Fiencke, Tina Sanders, Eva-Maria Pfeiffer Moorböden - die gefährdeten Kohlenstoffspeicher unserer Erde / David Holl, Lars Kutzbach, Eva-Maria Pfeiffer Boden-Dauerbeobachtung als Werkzeug zur Bewertung des ökologischen Zustandes und von Klimafolgen / Claudia Fiencke, Peter Woloszczyk, Birgit Grabellus, Eva-Maria Pfeiffer HUSCO: Wie beeinflussen Stadtböden das lokale Klima? / Annette Eschenbach, Sarah Wiesner, Alexander Gröngröft, Felix Ament Klimaretter Wald? Wie Bäume die Kohlenstofffestlegung im Waldboden beeinflussen / Christina Steffens Böden und nachhaltige Landnutzung Die fragile Ressource Boden in der kleinbäuerlichen Landwirtschaft im Südlichen Afrika / Jona Luther-Mosebach, Marleen de Blecourt, Stephan Baumann, Alexander Gröngröft, Annette Eschenbach Über die Bedeutung des Bodenwassershaushalts für eine nachhaltige Landnutzung im südlichen Afrika / Lars Landschreiber, Alexander Gröngröft, Annette Eschenbach Einsatz von Biokohle im Reisanbau / Christian Knoblauch, Eva-Maria Pfeiffer; Stefan Häfele Ökosystemleistungen von Böden urbaner Überschwemmungsgebiete / Kira Kalinski, Alexander Gröngröft, Annette Eschenbach Böden und Umweltforschung Erfassung flächenhafter Schadstoffbelastung in Auen / Katja Oing, Alexander Gröngröft, Timo Labitzky, Annette Eschenbach Bodenfunktionsbewertung / Alexander Gröngröft, Boris Hochfeld, Horst Wiechmann (+), Günter Miehlich Wie Bakterien im Boden helfen, die Freisetzung des Treibhausgases Methan aus Deponien zu vermindern / Julia Gebert, Ingke Rachor, Inga Röwer, Christoph Geck, Alexander Gröngröft, Jan-Streese-Kleeberg, Sonja Bohn, Stefan Melchior, Eva-Maria Pfeiffer Biofilter und Biowäscher zur Minderung der Methanemission / Claudia Fiencke, Fang Liu, Cindy Wienke, Wilfried Gläseker, Eva-Maria Pfeiffer Das HELP-Modell zur Simulation des Wasserhaushalts von Abdichtungssystemen für Deponien und Altlasten / Klaus Berger Nachhaltigkeitsforschung für Hamburg Bodenhydrologische und bodentechnologische Forschung zur Oberflächenabdichtung von Deponien und Altlasten - Forschungsansatz und Beitrag zur Entwicklung des Standes der Technik / Stefan Melchior, Günter Miehlich Bodenhydrologische und bodentechnologische Forschung zur Oberflächenabdichtung von Deponien und Altlasten - Messergebnisse zu den untersuchten Systemen / Stefan Melchior, Klaus Berger, Beate Vielhaber, Bernd Steinert, Katrin Tresselt, Alexander Gröngröft, Günter Miehlich Umweltprobleme schadstoffbelasteten Baggerguts / Alexander Gröngröft, Günter Miehlich Einsatz von Baggergut im Deichbau / Katja Oing, Alexander Gröngröft, Annette Eschenbach Welches Sauerstoffzehrungspotential haben die Sedimente der Elbe im Hamburger Hafen? / Mathias Spieckermann, Alexander Gröngröft, Annette Eschenbach Stadtböden, die Lebensgrundlage von Stadtbäumen / Selina Schaaf-Titel, Simon Thomsen, Alexander Gröngröft, Annette Eschenbach Ausbildung und Öffentlichkeitsarbeit Bodenkundliche Lehre an der Universität Hamburg / Lars Kutzbach, Annette Eschenbach, Eva-Maria Pfeiffer Die Doktorandenausbildung im Institut für Bodenkunde / Annette Eschenbach, Lars Kutzbach, Eva-Maria Pfeiffer Mein Student und ich - eine Bodenprobe berichtet aus dem Laboralltag / Birgit Grabellus, Deborah Harms, Sumita Rui, Monika Voß Feldlabor „Himmelmoor" / Lars Kutzbach, David Holl, Eva-Maria Pfeiffer Öffentlichkeitsarbeit am Institut für Bodenkunde / Günter Miehlich, Eva-Maria Pfeiffer Absolventinnen und Absolventen - Was ist aus ihnen geworden? Dr. Jörg Freytag (Geschäftsführender Gesellschafter eines Labors) Dr. habil. Julia Gebert (Professur, TU Delft, Niederlande) Andreas Hadenfeldt (Landwirt) Dr. Maja Karrasch (Hamburg Port Authority) PD Dr. habil. Stefan Melchior (Gesellschafter eines Ingenieurbüros) Dr. Andreas Petersen (Universität Hamburg, Wissenschaftsmanagement) Dr. Ingke Rachor (Behörde für Umwelt und Energie Hamburg, Altlastensanierung) Dr. Tina Sanders (Postdoc, Helmholtz-Zentrum Geesthacht) Ronja Tigges (Ingenieurbüro) Dr. Beate Vielhaber (Stadtreinigung Berlin) Dr. Sarah Wiesner (Postdoc, Meteorologisches Institut der Universität Hamburg) Florian Zander (Doktorand, TU Delft/UHH) Mitarbeiter und Mitarbeiterinnen Mitarbeiterinnen und Mitarbeiter auf Planstellen

Note: Contents I. Selected scientific and coordinating staff Research Unit 1a: The polar atmosphere and cryosphere in a changing climate Boike, Julia Diekmann, Bernhard Eisen, Olaf Grosse, Guido Hellmer, Hartmut H. Herzschuh, Ulrike Humbert, Angelika Lantuit, Hugues Mollenhauer, Gesine Rex, Markus Wilhelms, Frank Research Unit lb: Climate interactions with polar seas, marine ecosystems Bridging research and society: products, tools and climate services and biogeochernical processes Boetius, Antje Bracher, Astrid Brey, Thomas Haas, Christian Kanzow, Torsten Klaas, Christine Meyer, Bettina Pörtner, Hans-Otto Richter, Claudio Rost, Björn Soltwedel, Thomas Strass, Volker H. Waite, Anya M. Research Unit 2: Fragile coasts and she!f seas Abele, Doris Boersma, Maarten Buschbaum, Christian Gerdts, Gunnar John, Uwe Kasten, Sabine Koch, Boris Wegner, K. Mathias Wiltshire, Karen Helen Research Unit 3: The Earth system from a polar perspective: data, modeling and synthesis Bijma, Jelle Jokat, Wilfried Jung, Thomas Knorr, Gregor Köhler, Peter Laepple, Thomas Lamy, Frank Lohmann, Gerrit Schlindwein, Vera Stein, Rüdiger Tiedemann, Ralf Wolf-Gladrow, Dieter Research Unit 4: Bridging research and society: products, tools and climate services Bergmann, Melanie Buck, Bela H. Frickenhaus, Stephan Grosfeld, Klaus Gutow, Lars Krause, Gesche Research Unit 5: Research infrastructure - performance categories LK I and LK II Nixdorf, Uwe II. Indicators and resources 1. Indicators and resources by Research Units 2. Indicators and resources by user facilities 3. Indicators and resources by program Program PACES II "Marine, Coastal and Polar Systems" 4. Indicators for the center Ill. Definition of indicators IV. List of abbreviations Imprint

Note: Contents List of most commonly used abbreviations I. Helmholtz Association - Mission and Strategy II. Helmholtz Research Field Earth and Environment II.1 Overview II. 2 Programs Ill. Alfred Wegener Institute Helmholtz Centre III.1 Organization Ill. 2 Strategic partnerships and cooperation Ill. 3 Research infrastructure Ill. 4 Career development, talent management and equal opportunity Ill. 5 Knowledge and technology transfer Ill. 6 Scientific awards and appointments Ill. 7 Membership of international Boards and Committees 2013-2016 (selection) IV. Research Units IV. 1a Research Unit 1a The polar atmosphere and cryosphere in a changing climate IV. 1a.1 Mission statement IV. 1a.2 Introduction IV. 1a.3 Scientific questions IV. 1a.4 Approach of the Research Unit IV. 1a.5 Structure of the Research Unit IV. 1a.6 Scientific outcomes IV. 1a.7 Leadership of and contributions to large national and international projects and programs IV. 1a.8 Career development and personnel turnover IV. 1a.9 Overview of Contribution to Grand Challenges IV. 1a.10 Outlook IV. 1a.11 Budget, personnel and publications IV. 1a.12 References IV. 1b Research Unit 1b Climate interactions with polar seas, marine ecosystems and biogeochemical processes IV. 1b.1 Mission statement IV. 1b.2 Introduction IV. 1b.3 Scientific questions IV. 1b.4 Approach of the Research Unit IV. 1b.5 Structure of the Research Unit IV. 1b.6 Scientific outcomes IV. 1b.7 Leadership of and contributions to large national and international projects and programs IV. 1b.8 Career development and personnel turnover IV. 1b.9 Overview of contribution to Grand Challenges IV. 1b.10 Outlook IV. 1b.11 Budget, personnel and publications IV. 1b.12 References IV.2 Research Unit 2 Fragile coasts and shelf seas IV. 2.1 Mission statement IV. 2.2 Introduction IV. 2.3 Scientific questions IV. 2.4 Approach of the Research Unit IV. 2.5 Structure of the Research Unit IV. 2.6 Scientific outcomes IV. 2.7 Leadership of and contributions to large national and international projects and programs IV. 2.8 Career development and personnel turnover IV. 2.9 Overview of contribution to Grand Challenges IV. 2.10 Outlook IV. 2.11 Budget, personnel and publications IV. 2.12 References IV. 3 Research Unit 3 The Earth system from a polar perspective: data, modeling and synthesis IV. 3.1 Mission statement IV. 3.2 Introduction IV. 3.3 Scientific questions IV. 3.4 Approach of the Research Unit IV. 3.5 Structure of the Research Unit IV. 3.6 Scientific outcomes IV. 3.7 Leadership and contributions to large national and international projects and programs IV. 3.8 Career development and personnel turnover IV. 3.9 Overview of contribution to Grand Challenges IV. 3.10 Outlook IV. 3.11 Budget, personnel and publications IV. 3.12 References IV. 4 Research Unit 4 Bridging research and society: products, tools and climate services IV. 4.1 Mission statement IV. 4.2 Introduction IV. 4.3 Scientific tasks and services IV. 4.4 Approach of the Research Unit IV. 4.5 Structure of the Research Unit IV. 4.6 Scientific outcomes IV. 4.7 Leadership of and contributions to large national and international projects and programs IV. 4.8 Career development and personnel turnover IV. 4.9 Outlook IV. 4.10 Budget, personnel and publications IV. 4.11 References IV.5 Research Unit 5 Research infrastructure - performance categories LK I and LK II IV. 5.1 Mission statement IV. 5.2 Overview IV. 5.3 Research Unit SA IV. 5.4 Research Unit 58 (LK II Infrastructure) V. Recommendations of the Helmholtz Senate V.1 Recommendations of the Helmholtz Senate V.2 Detailed recommendations of the Helmholtz Senate for each Research Unit (not covered above) Imprint

Note: Contents: 1 Introduction to the Application of Paleoecological Techniques in Estuaries / Kathryn H. Taffs, Krystyna M. Saunders, Kaarina Weckström, Peter A. Gell, and C. Gregory Skilbeck. - PART I ESTARIES AND THEIR MANAGEMENT. - 2 Estuary Form and Function: Implications for Palaeoecological Studies / Peter Scanes, Angus Ferguson, and Jaimie Potts. - 3 Geology and Sedimentary History of Modern Estuaries / C. Gregory Skilbeck, Andrew D. Heap, and Colin D. Woodroffe. - 4 Paleoecological Evidence for Variability and Change in Estuaries: Insights for Management / Krystyna M. Saunders and Peter A. Gell. - PART II CORING AND DATING OF ESTUARINE SEDIMENTS. - 5 Sediment Sampling in Estuaries: Site Selection and Sampling Techniques / C. Gregory Skilbeck, Stacey Trevathan-Tackett, Pemika Apichanangkool, and Peter I. Macreadie. - 6 Some Practical Considerations Regarding the Application of 210Pb and 137Cs Dating to Estuarine Sediments / Thorbjoern Joest Andersen. - 7 Radiocarbon Dating in Estuarine Environments / Jesper Olsen, Philippa Ascough, Bryan C. Lougheed, and Peter Rasmussen. - PART III TECHNIQUES FOR PALAEOENVIRONMENTAL RECONSTRUCTIONS IN ESTUARINES. - 8 Lipid Biomarkers as Organic Geochemical Proxies for the Paleoenvironmental Reconstruction of Estuarine Environments / John K. Volkman and Rienk H. Smittenberg. - 9 C/N ratios and Carbon Isotope Composition of Organic Matter in Estuarine Environments / Melanie J. Leng and Jonathan P. Lewis. - 10 Physical and Chemical Factors to Consider when Studying Historical Contamination and Pollution in Estuaries / Amanda Reichelt-Brushett, Malcolm Clark, and Gavin Birch. - 11 Diatoms as Indicators of Environmental Change in Estuaries / Kathryn H. Taffs, Krystyna M. Saunders, and Brendan Logan. - 12 Dinoflagellate Cysts as Proxies for Holocene Environmental Change in Estuaries: Diversity, Abundance and Morphology / Marianne Ellegaard, Barrie Dale, Kenneth N. Mertens, Vera Pospelova, and Sofia Ribeiro. - 13 Applications of Foraminifera, Testate Amoebae and Tintinnids in Estuarine Palaeoecology / Anupam Ghosh and Helena L. Filipsson. - 14 Ostracods as Recorders of Palaeoenvironmental Change in Estuaries / Jessica M. Reeves. - 15 Application of Molluscan Analyses to the Reconstruction of Past Environmental Conditions in Estuaries / G. Lynn Wingard and Donna Surge. - 16 Corals in Estuarine Environments: Their Response to Environmental Changes and Application in Reconstructing Past Environmental Variability / Francisca Staines-Urías. - 17 Inferring Environmental Change in Estuaries from Plant Macrofossils / John Tibby and Carl D. Sayer. - 18 Applications of Pollen Analysis in Estuarine Systems / Joanna C. Ellison. - PART IV CASE STUDIES. - 19 Palaeo-Environmental Approaches to Reconstructing Sea Level Changes in Estuaries / Brigid V. Morrison and Joanna C. Ellison. - 20 Paleoecology Studies in Chesapeake Bay: A Model System for Understanding Interactions between Climate, Anthropogenic Activities and the Environment / Elizabeth A. Canuel, Grace S. Brush, Thomas M. Cronin, Rowan Lockwood, and Andrew R. Zimmerman. - 21 Paleosalinity Changes in the Río de la Plata Estuary and on the Adjacent Uruguayan Continental Shelf over the Past 1200 Years: An Approach Using Diatoms as a Proxy / Laura Perez, Felipe García-Rodríguez, and Till J.J. Hanebuth. - 22 Application of Paleoecology to Ecosystem Restoration: A Case Study from South Florida’s Estuaries / G. Lynn Wingard. - 23 Paleolimnological History of the Coorong: Identifying the Natural Ecological Character of a Ramsar Wetland in Crisis / Peter A. Gell. - 24 Palaeoenvironmental History of the Baltic Sea: One of the Largest Brackish-water Ecosystems in the World / Kaarina Weckström, Jonathan P. Lewis, Elinor Andrén, Marianne Ellegaard, Peter Rasmussen, and Richard Telford. - Glossary. - Index

Note: Contents: Lists of figures. - List of contributors. - Preface. - 1. Challenges for ice age dynamics: a dynamical systems perspective / Michel Crucifix, Guillaume Lenoir and Takahito Mitsui. - 2. Tipping points in the climate system / Peter Ditlevsen. - 3. Atmospheric teleconnection patterns / Steven B. Feldstein and Christian L. E. Franzke. - 4. Atmospheric regimes: the link between weather and the large scale circulation / David M. Straus, Franco Molteni and Susanna Corti. - 5. Low-frequency regime transitions and predictability of regimes in a barotropic model / Balu T. Nadiga and Terence J. O'Kane. - 6. Complex network techniques for climatological data analysis / Reik V. Donner, Marc Wiedermann and Jonathan F. Donges. - 7. On inference and validation of causality relations in climate teleconnections / Illia Horenko, Susanne Gerber, Terence J. O'Kane, James S. Risbey and Didier P. Monselesan. - 8. Stochastic climate theory / Georg A. Gottwald, Daan T. Crommelin and Christian L. E. Franzke. - 9. Stochastic subgrid modelling for geophysical and three-dimensional turbulence / Jorgen S. Frederiksen, Vassili Kitsios, Terence J. O'Kane and Meelis J. Zidikheri. - 10. Model error in data assimilation / John Harlim. - 11. Long-term memory in climate: detection, extreme events, and significance of trends / Armin Bunde and Josef Ludescher. - 12. Fractional stochastic models for heavy tailed, and long-range dependent, fluctuations in physical systems / Nicholas W. Watkins. - 13. Modelling spatial extremes using Max-Stable Processes / Mathieu Ribatet. - 14. Extreme value analysis in dynamical systems: two case studies / Tamás Bódai. - Index.

Note: Inhalt: Vorwort. - 1. Die Dynamik der Küsten. - Vom Werden und Vergehen der Küsten. - Die vielen Gesichter der Küsten. - Conclusio: Die Gestalt unserer Küsten – eine lange und wechselvolle Geschichte. - 2. Mit den Küsten leben. - Die Leistung der Küsten. - Küsten unter Druck. - Conclusio: Immense Leistung, immenser Druck 3. Bedrohung durch Klimawandel und Naturgefahren. - Der Klimawandel und die Küsten. - Vom Kampf gegen Naturgefahren. - Conclusio: Klimawandel und Naturgefahren bedrohen die Küsten. - 4. Küsten besser schützen. - Die Kunst, Küsten zu verwalten. - Dem Meeresspiegelanstieg begegnen. - Conclusio: Gemeinsam für eine schonende Nutzung und einen besseren Schutz. - Gesamt-Conclusio. - Glossar. - Abkürzungen. - Quellenverzeichnis. - Abbildungsverzeichnis. - Index. - Mitwirkende. - Partner und Danksagung. - Impressum.

Note: Contents: TITLE PAGE -- COPYRIGHT PAGE -- CONTENTS -- CONTRIBUTORS -- PREFACE -- ACKNOWLEDGMENTS -- PART I FORCINGS OF CLIMATE EXTREMES -- CHAPTER 1 THE CHANGING EL NIÑO-SOUTHERN OSCILLATION AND ASSOCIATED CLIMATE EXTREMES -- 1.1. INTRODUCTION -- 1.2. CHANGES IN ENSO PROPERTIES -- 1.3. CHANGES IN ENSO DYNAMICS -- 1.4. CHANGES IN ENSO TELECONNECTIONS AND ASSOCIATED CLIMATE EXTREMES -- 1.5. ENSO IN THE FUTURE -- 1.6. SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 2 WEATHER EXTREMES LINKED TO INTERACTION OF THE ARCTIC AND MIDLATITUDES -- 2.1. INTRODUCTION -- 2.2. ARCTIC EFFECTS ON MIDLATITUDE EXTREMES -- 2.3. MIDLATITUDE EFFECTS ON ARCTIC EXTREMES -- 2.4. DISCUSSION AND CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 3 IMPACT OF AEROSOLS ON REGIONAL CHANGES IN CLIMATE EXTREMES -- 3.1. INTRODUCTION -- 3.2. DIRECT AND INDIRECT EFFECTS OF AEROSOLS ON CLOUDS AND RADIATION -- 3.3. AEROSOL IMPACT ON REGIONAL CLIMATE CHANGE -- 3.4. Mitigation scenarios for aerosol emissions -- 3.5. AEROSOL EFFECT ON TEMPERATURE AND PRECIPITATION EXTREMES -- 3.6. FUTURE RESEARCH NEEDS -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 4 WEAKENED FLOW, PERSISTENT CIRCULATION, AND PROLONGED WEATHER EXTREMES IN BOREAL SUMMER -- 4.1. INTRODUCTION -- 4.2. RESONANT CIRCULATION REGIMES -- 4.3. REAL EVENTS -- 4.4. CONCLUSIONS AND DISCUSSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 5 LAND PROCESSES AS THE FORCING OF EXTREMES: A REVIEW -- 5.1. INTRODUCTION -- 5.2. FORCINGS OF LAND PROCESSES ON CLIMATE EXTREMES -- 5.3. SUMMARY -- ACKNOWLEDGMENTS -- REFERENCES -- PART II PROCESSES OF CLIMATE EXTREMES -- CHAPTER 6 TIMING OF ANTHROPOGENIC EMERGENCE IN CLIMATE EXTREMES -- 6.1. INTRODUCTION -- 6.2. DEFINING TIME OF EMERGENCE -- 6.3. DATA AND METHODS -- 6.4. RESULTS -- 6.5. DISCUSSION -- 6.6. CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES CHAPTER 7 RECENT INCREASES IN EXTREME TEMPERATURE OCCURRENCE OVER LAND -- 7.1. INTRODUCTION -- 7.2. DATA AND METHODOLOGY -- 7.3. RESULTS -- 7.4. CONCLUSIONS -- REFERENCES -- CHAPTER 8 WHY FUTURE SHIFTS IN TROPICAL PRECIPITATION WILL LIKELY BE SMALL: THE LOCATION OF THE TROPICAL RAIN BELT AND THE HEMISPHERIC CONTRAST OF ENERGY INPUT TO THE ATMOSPHERE -- 8.1. INTRODUCTION -- 8.2. THE RELATIONSHIP BETWEEN ITCZ POSITION AND HEMISPHERIC CONTRAST OF ATMOSPHERIC HEATING -- 8.3. RELATIONSHIP BETWEEN THE SEASONAL CYCLE OF ITCZ MIGRATION AND THE ANNUAL MEAN PRECIPITATION DISTRIBUTION -- 8.4. IMPLICATIONS FOR FUTURE ITCZ SHIFTS UNDER GLOBAL WARMING -- REFERENCES -- CHAPTER 9 WEATHER-CLIMATE INTERACTIONS AND MJO INFLUENCES -- 9.1. INTRODUCTION -- 9.2. THE INTERACTIONS BETWEEN THE MJO, BACKGROUND STATE, AND SYNOPTIC WEATHER -- 9.3. A CASE STUDY ON INTERACTIONS BETWEEN THE MADDEN-JULIAN OSCILLATION AND EL NIÑO -- 9.4. INTERACTIONS BETWEEN THE MJO AND BREAKING WAVES -- 9.5. INTERACTIONS BETWEEN THE MJO, TROPICAL CYCLONES, AND THE EXTRATROPICAL CIRCULATION -- 9.6. SUMMARY -- REFERENCES -- CHAPTER 10 RECENT CLIMATE EXTREMES ASSOCIATED WITH THE WEST PACIFIC WARMING MODE -- 10.1. INTRODUCTION -- 10.2. BACKGROUND -- 10.3. DATA AND METHODS -- 10.4. SUMMARY AND DISCUSSION -- REFERENCES -- CHAPTER 11 CONNECTIONS BETWEEN HEAT WAVES AND CIRCUMGLOBAL TELECONNECTION PATTERNS IN THE NORTHERN HEMISPHERE SUMMER -- 11.1. INTRODUCTION -- 11.2. DATA AND METHODS -- 11.3. DISTRIBUTION OF HEAT WAVES -- 11.4. PLANETARY WAVES ASSOCIATED WITH THE HEAT WAVES -- 11.5. SUMMARY AND DISCUSSION -- ACKNOWLEDGMENTS -- REFERENCES -- PART III REGIONAL CLIMATE EXTREMES -- CHAPTER 12 NORTH AMERICAN DROUGHT AND LINKS TO NORTHERN EURASIA: THE ROLE OF STATIONARY ROSSBY WAVES -- 12.1. INTRODUCTION -- 12.2. REANALYSIS DATA AND THE GEOS-5 AGCM EXPERIMENTS -- 12.3. RESULTS -- 12.4. SUMMARY AND CONCLUSIONS ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 13 THE CALIFORNIA DROUGHT: TRENDS AND IMPACTS -- 13.1. INTRODUCTION -- 13.2. THE PROLONGED DROUGHT OF 2012-2016 -- 13.3. ROLE OF ENSO CYCLE -- 13.4. ARCTIC INFLUENCES -- 13.5. DROUGHT IMPACTS ON CALIFORNIA -- 13.6. CONCLUDING REMARKS -- REFERENCES -- CHAPTER 14 OBSERVED TRENDS IN US TORNADO FREQUENCY -- 14.1. INTRODUCTION -- 14.2. STORM DATA TORNADO DATABASE -- 14.3. US TORNADO CLIMATOLOGY -- 14.4. CHANGES IN US TORNADO STATISTICS -- 14.5. CONCLUDING REMARKS -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 15 MECHANISMS EXPLAINING RECENT CHANGES IN AUSTRALIAN CLIMATE EXTREMES -- 15.1. INTRODUCTION -- 15.2. AUSTRALIAN RAINFALL EXTREMES OF 2010-2012 -- 15.3. AUSTRALIA'S TEMPERATURE EXTREMES OF 2013 -- 15.4. SUMMARY AND CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 16 UNRAVELING EAST AFRICA'S CLIMATE PARADOX -- 16.1. INTRODUCTION -- 16.2. THE NATURE OF THE RECENT EAST AFRICAN LONG RAINS DECLINE -- 16.3. LINKS TO PACIFIC DECADAL VARIABILITY -- 16.4. PHYSICAL CONSIDERATIONS -- 16.5. CLIMATE MODEL SIMULATIONS OF EAST AFRICAN CLIMATE -- 16.6. CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 17 A PHYSICAL MODEL FOR EXTREME DROUGHT OVER SOUTHWEST ASIA -- 17.1. INTRODUCTION -- 17.2. PRECIPITATION PATTERNS -- 17.3. SST RELATIONSHIPS -- 17.4. ATMOSPHERIC TELECONNECTIONS -- 17.5. SUMMARY -- APPENDIX: DATA -- REFERENCES -- PART IV PREDICTION OF CLIMATE EXTREMES -- CHAPTER 18 EXTRATROPICAL PRECURSORS OF THE EL NIÑO-SOUTHERN OSCILLATION -- 18.1. INTRODUCTION -- 18.2. OVERVIEW OF PRECURSORS AND THEIR IMPACT ON ENSO -- 18.3. DATA AND DEFINITIONS -- 18.4. EVALUATION OF PRECURSOR VARIABILITY AND COVARIABILITY -- 18.5. RELATIONSHIP BETWEEN PRECURSORS AND ENSO -- 18.6. DIAGNOSING PRECURSORS AS ENSO PREDICTORS -- 18.7. RELATIONSHIP OF EXTRATROPICAL PRECURSORS TO 2014 AND 2015 EL NIñO -- 18.8. SUMMARY AND DISCUSSION -- REFERENCES -- CHAPTER 19 NORTH ATLANTIC SEASONAL HURRICANE PREDICTION: UNDERLYING SCIENCE AND AN EVALUATION OF STATISTICAL MODELS -- 19.1. INTRODUCTION -- 19.2. STATISTICALLY BASED SEASONAL HURRICANE OUTLOOK MODELS -- 19.3. CONCLUSIONS -- REFERENCES -- CHAPTER 20 PREDICTING SUBSEASONAL PRECIPITATION VARIATIONS BASED ON THE MADDEN-JULIAN OSCILLATION -- 20.1. INTRODUCTION -- 20.2. THE MJO INFLUENCE ON THE VARIABILITY OF PRECIPITATION -- 20.3. FORECASTING THE MJO -- 20.4. THE MJO AND PREDICTABILITY OF PRECIPITATION -- 20.5. CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- CHAPTER 21 PREDICTION OF SHORT-TERM CLIMATE EXTREMES WITH A MULTIMODEL ENSEMBLE -- 21.1. INTRODUCTION -- 21.2. PREDICTION SKILL -- 21.3. PREDICTABILITY -- 21.4. SUMMARY AND DISCUSSION -- REFERENCES -- CHAPTER 22 TOWARD PREDICTING US TORNADOES IN THE LATE 21ST CENTURY -- 22.1. PROJECTING CHANGES IN US TORNADO ACTIVITY USING ENVIRONMENTAL PROXIES -- 22.2. SHORT-TERM TORNADO PREDICTION USING HIGH RESOLUTION MODELS AND APPLICATIONS TO DYNAMICAL DOWNSCALING -- 22.3. CONCLUDING REMARKS -- ACKNOWLEDGMENTS -- REFERENCES -- INDEX

Note: Contents: List of figures and tables. - List of boxes. - Acknowledgements. - List of abbreviations. - PART I INTRODUCTION . - 1. The Geopolitics of an Arctic Meltdown and the Question of EUropean Arctic Space. - PART II GEOPOLITICS. - 2. The Thought Experiment Referred to as Geopolitics. - PART III THE ARCTIC. - 3. Arctic Geopolitics and the Regional Zeitgeist of the Twenty-First Century. - PART IV THE EUROPEAN UNION. - 4. EUropean Dimensions of Arctic Presence. - 5. An Action in the Making: The EU’s Arctic Policy-Making Process. - 6. The EU’s Arctic Space-Making Practices. - PART V CONCLUSION. - 7. A European Geopolitical Subject in the Arctic?. - REFERENCES. - APPENDIX I. - APPENDIX II. - INDEX.

Note: Inhaltsverzeichnis: Vorwort. - 1. Einführung. - 2. Herausforderungen an die Küsten-, Meeres- und Polarforschung. - 3. Politischer und programmatischer Rahmen. - 4. Internationale Einbindung der Küsten-, Meeres- und Polarforschung. - 5. Agendaprozesse in der Küsten-, Meeres- und Polarforschung. - 6. Programmstruktur. - 7. Wissenschaftliches Programm. - 7.1 Globaler Wandel und Klima geschehen. - 7.2 Ökosystemfunktion und Biodiversität. - 7.3 Globale Stoffkreisläufe und Energieflüsse. - 7.4 Umgang mit Naturgefahren. - 7.5 Nachhaltige Ressourcennutzung. - 7.6 Governance und Partizipation. - 8. Forschungsinfrastrukturen. - 8.1 Forschungsflotte und Großgeräte. - 8.2 Mess- und Beobachtungstechnik. - 8.3 Daten- und Informationsinfrastrukturen. - 8.4 Modellierungsinfrastruktur. - 9. Innovative Technologien. - 10. Umsetzung des Forschungsprogramms. - 10.1 Zuwendungsgeber, Projektstruktur und Förderhöhe. - 10.2 Auswahlverfahren und Förderbestimmungen. - 10.3 Evaluation. - 11. Weitere Informationen und Ansprechpartner. - Impressum.

Note: INHALT: EDITORIAL. - Auf den Spuren des Wandels: Forschung an den Brennpunkten unseres Planeten. - SCHWERPUNKTTHEMA. - Hotspot Arktis – wenn das Eis verschwindet. - OZEANOGRAPHIE. - E-Mails vom Filchner-Schelfeis. - MEEREISVORHERSAGE. - Wenn zwei sich „streiten“. - KLIMAMODELLIERUNG. - Stets die richtige Maschenweite. - HYDROAKUSTIK. - Der Sound des Ozeans. - OZEANOGRAPHIE. - Der Wärme-Pulsschlag des Nordatlantiks. - OZEANOGRAPHIE. - Wohin wandert der Rieseneisberg vom Larsen C-Schelfeis?. - ATMOSPHÄRENFORSCHUNG. - Per Anhalter in die Arktis. - KLIMAMODELLIERUNG. - Die Stärken des Rechnens. - FERNERKUNDUNG. - Die Lücken im Blick. - ATMOSPHÄRENFORSCHUNG. - Die Ozon-Story. - MEEREISPHYSIK. - Messungen aus der Vogelperspektive. - FORSCHUNGSVERBUND. - Den Klimawandel vor der Haustür verstehen. - INFOGRAFIK. - Einblicke in das Klima der Vergangenheit. - MEERESSPIEGELANSTIEG. - Eis weg - Land unter!. - IMPRESSUM.

Note: TABLE OF CONTENTS: EDITORIAL. - Tracking Changes: research at our planet’s hotspots. - FOCUS TOPIC. - Hotspot Arktic - when the ice disappears. - OCEANOGRAPHY. - E-mails from the Filchner Ice Shelf. - SEA-ICE FORECASTING. - Great minds don’t always think alike. - CLIMATE MODELLING. - Always the right scale. - HYDROACOUSTICS. - The Music of the Ocean. - OCEANOGRAPHY. - The Pulse of Heat in the North Atlantic. - OCEANOGRAPHY. - Where is the giant iceberg from the Larsen C Ice Shelf heading?. - ATMOSPHERIC RESEARCH. - Hitchhiking across the arctic. - CLIMATE MODELLING. - The benefits of model. - REMOTE SENSING. - Minding the gaps. - ATMOSPHERIC RESEARCH. - The Ozone Story. - SEA-ICE PHYSICS. - A bird’s eye view of the ice. - RESEARCH NETWORK INITIATIVE. - Understanding the climate change on your own doorstep. - INFOGRAPHIC. - Decoding the Earth ́s climate history. - SEA LEVEL RISE. - Melting ice flooded shores. - MASTHEAD.

Note: Contents: 1 Computing with Formulas. - 1.1 The First Programming Encounter: a Formula. - 1.1.1 Using a Program as a Calculator. - 1.1.2 About Programs and Programming. - 1.1.3 Tools for Writing Programs. - 1.1.4 Writing and Running Your First Python Program. - 1.1.5 Warning About Typing Program Text. - 1.1.6 Verifying the Result. - 1.1.7 Using Variables. - 1.1.8 Names of Variables. - 1.1.9 Reserved Words in Python. - 1.1.10 Comments. - 1.1.11 Formatting Text and Numbers. - 1.2 Computer Science Glossary. - 1.3 Another Formula: Celsius-Fahrenheit Conversion. - 1.3.1 Potential Error: Integer Division. - 1.3.2 Objects in Python. - 1.3.3 Avoiding Integer Division. - 1.3.4 Arithmetic Operators and Precedence. - 1.4 Evaluating Standard Mathematical Functions. - 1.4.1 Example: Using the Square Root Function. - 1.4.2 Example: Computing with sinh x. - 1.4.3 A First Glimpse of Rounding Errors. - 1.5 Interactive Computing. - 1.5.1 Using the Python Shell. - 1.5.2 Type Conversion. - 1.5.3 IPython. - 1.6 Complex Numbers. - 1.6.1 Complex Arithmetics in Python. - 1.6.2 Complex Functions in Python. - 1.6.3 Unified Treatment of Complex and Real Functions. - 1.7 Symbolic Computing. - 1.7.1 Basic Differentiation and Integration. - 1.7.2 Equation Solving. - 1.7.3 Taylor Series and More. - 1.8 Summary. - 1.8.1 Chapter Topics. - 1.8.2 Example: Trajectory of a Ball. - 1.8.3 About Typesetting Conventions in This Book. - 1.9 Exercises. - 2 Loops and Lists. - 2.1 While Loops. - 2.1.1 A Naive Solution. - 2.1.2 While Loops. - 2.1.3 Boolean Expressions. - 2.1.4 Loop Implementation of a Sum. - 2.2 Lists. - 2.2.1 Basic List Operations. - 2.2.2 For Loops. - 2.3 Alternative Implementations with Lists and Loops. - 2.3.1 While Loop Implementation of a for Loop. - 2.3.2 The Range Construction. - 2.3.3 For Loops with List Indices. - 2.3.4 Changing List Elements. - 2.3.5 List Comprehension. - 2.3.6 Traversing Multiple Lists Simultaneously. - 2.4 Nested Lists. - 2.4.1 A table as a List of Rows or Columns. - 2.4.2 Printing Objects. - 2.4.3 Extracting Sublists. - 2.4.4 Traversing Nested Lists. - 2.5 Tuples. - 2.6 Summary. - 2.6.1 Chapter Topics. - 2.6.2 Example: Analyzing List Data. - 2.6.3 How to Find More Python Information. - 2.7 Exercises. - 3 Functions and Branching. - 3.1 Functions. - 3.1.1 Mathematical Functions as Python Functions. - 3.1.2 Understanding the Program Flow. - 3.1.3 Local and Global Variables. - 3.1.4 Multiple Arguments. - 3.1.5 Function Argument or Global Variable?. - 3.1.6 Beyond Mathematical Functions. - 3.1.7 Multiple Return Values. - 3.1.8 Computing Sums. - 3.1.9 Functions with No Return Values. - 3.1.10 Keyword Arguments. - 3.1.11 Doc Strings. - 3.1.12 Functions as Arguments to Functions. - 3.1.13 The Main Program. - 3.1.14 Lambda Functions. - 3.2 Branching. - 3.2.1 If-else Blocks. - 3.2.2 Inline if Tests. - 3.3 Mixing Loops, Branching, and Functions in Bioinformatics Examples. - 3.3.1 Counting Letters in DNA Strings. - 3.3.2 Efficiency Assessment. - 3.3.3 Verifying the Implementations. - 3.4 Summary. - 3.4.1 Chapter Topics. - 3.4.2 Example: Numerical Integration. - 3.5 Exercises. - 4 User Input and Error Handling. - 4.1 Asking Questions and Reading Answers. - 4.1.1 Reading Keyboard Input. - 4.2 Reading from the Command Line. - 4.2.1 Providing Input on the Command Line. - 4.2.2 A Variable Number of Command-Line Arguments. - 4.2.3 More on Command-Line Arguments. - 4.3 Turning User Text into Live Objects. - 4.3.1 The Magic Eval Function. - 4.3.2 The Magic Exec Function. - 4.3.3 Turning String Expressions into Functions. - 4.4 Option-Value Pairs on the Command Line. - 4.4.1 Basic Usage of the Argparse Module. - 4.4.2 Mathematical Expressions as Values. - 4.5 Reading Data from File. - 4.5.1 Reading a File Line by Line. - 4.5.2 Alternative Ways of Reading a File. - 4.5.3 Reading a Mixture of Text and Numbers. - 4.6 Writing Data to File. - 4.6.1 Example: Writing a Table to File. - 4.6.2 Standard Input and Output as File Objects. - 4.6.3 What is a File, Really?. - 4.7 Handling Errors. - 4.7.1 Exception Handling. - 4.7.2 Raising Exceptions. - 4.8 A Glimpse of Graphical User Interfaces. - 4.9 Making Modules. - 4.9.1 Example: Interest on Bank Deposits. - 4.9.2 Collecting Functions in a Module File. - 4.9.3 Test Block. - 4.9.4 Verification of the Module Code. - 4.9.5 Getting Input Data. - 4.9.6 Doc Strings in Modules. - 4.9.7 Using Modules. - 4.9.8 Distributing Modules. - 4.9.9 Making Software Available on the Internet. - 4.10 Making Code for Python 2 and 3. - 4.10.1 Basic Differences Between Python 2 and 3. - 4.10.2 Turning Python 2 Code into Python 3 Code. - 4.11 Summary. - 4.11.1 Chapter Topics. - 4.11.2 Example: Bisection Root Finding. - 4.12 Exercises. - 5 Array Computing and Curve Plotting. - 5.1 Vectors. - 5.1.1 The Vector Concept. - 5.1.2 Mathematical Operations on Vectors. - 5.1.3 Vector Arithmetics and Vector Functions. - 5.2 Arrays in Python Programs. - 5.2.1 Using Lists for Collecting Function Data. - 5.2.2 Basics of Numerical Python Arrays. - 5.2.3 Computing Coordinates and Function Values. - 5.2.4 Vectorization. - 5.3 Curve Plotting. - 5.3.1 MATLAB-Style Plotting with Matplotlib. - 5.3.2 Matplotlib; Pyplot Prefix. - 5.3.3 SciTools and Easyviz. - 5.3.4 Making Animations. - 5.3.5 Making Videos. - 5.3.6 Curve Plots in Pure Text. - 5.4 Plotting Difficulties. - 5.4.1 Piecewisely Defined Functions. - 5.4.2 Rapidly Varying Functions. - 5.5 More Advanced Vectorization of Functions. - 5.5.1 Vectorization of StringFunction Objects. - 5.5.2 Vectorization of the Heaviside Function. - 5.5.3 Vectorization of a Hat Function. - 5.6 More on Numerical Python Arrays. - 5.6.1 Copying Arrays. - 5.6.2 In-Place Arithmetics. - 5.6.3 Allocating Arrays. - 5.6.4 Generalized Indexing. - 5.6.5 Testing for the Array Type. - 5.6.6 Compact Syntax for Array Generation. - 5.6.7 Shape Manipulation. - 5.7 High-Performance Computing with Arrays. - 5.7.1 Scalar Implementation. - 5.7.2 Vectorized Implementation. - 5.7.3 Memory-Saving Implementation. - 5.7.4 Analysis of Memory Usage. - 5.7.5 Analysis of the CPU Time. - 5.8 Higher-Dimensional Arrays. - 5.8.1 Matrices and Arrays. - 5.8.2 Two-Dimensional Numerical Python Arrays. - 5.8.3 Array Computing. - 5.8.4 Matrix Objects. - 5.9 Some Common Linear Algebra Operations. - 5.9.1 Inverse, Determinant, and Eigenvalues. - 5.9.2 Products. - 5.9.3 Norms. - 5.9.4 Sum and Extreme Values. - 5.9.5 Indexing. - 5.9.6 Transpose and Upper/Lower Triangular Parts. - 5.9.7 Solving Linear Systems. - 5.9.8 Matrix Row and Column Operations. - 5.9.9 Computing the Rank of a Matrix. - 5.9.10 Symbolic Linear Algebra. - 5.10 Plotting of Scalar and Vector Fields. - 5.10.1 Installation. - 5.10.2 Surface Plots. - 5.10.3 Parameterized Curve. - 5.10.4 Contour Lines. - 5.10.5 The Gradient Vector Field. - 5.11 Matplotlib. - 5.11.1 Surface Plots. - 5.11.2 Contour Plots. - 5.11.3 Vector Field Plots. - 5.12 Mayavi. - 5.12.1 Surface Plots. - 5.12.2 Contour Plots. - 5.12.3 Vector Field Plots. - 5.12.4 A 3D Scalar Field and Its Gradient Field. - 5.12.5 Animations. - 5.13 Summary. - 5.13.1 Chapter Topics. - 5.13.2 Example: Animating a Function. - 5.14 Exercises. - 6 Dictionaries and Strings. - 6.1 Dictionaries. - 6.1.1 Making Dictionaries. - 6.1.2 Dictionary Operations. - 6.1.3 Example: Polynomials as Dictionaries. - 6.1.4 Dictionaries with Default Values and Ordering. - 6.1.5 Example: Storing File Data in Dictionaries. - 6.1.6 Example: Storing File Data in Nested Dictionaries. - 6.1.7 Example: Reading and Plotting Data Recorded at Specific Dates. - 6.2 Strings. - 6.2.1 Common Operations on Strings. - 6.2.2 Example: Reading Pairs of Numbers. - 6.2.3 Example: Reading Coordinates. - 6.3 Reading Data fromWeb Pages. - 6.3.1 About Web Pages. - 6.3.2 How to Access Web Pages

Note: Table of Contents Abstract Kurzfassung Abbreviations and nomenclature 1. Introduction 2. Scientific Background 2.1. Permafrost 2.2.Retrogressive Thaw Slumps 2.3. Inputs of Freshwater, Sediment and Carbon into the Canadian Beaufort Sea 3. Study Area 3.1. Regional Setting: Yukon Coast and Herschel Island 3.2. Retrogressive Thaw Slumps 4. Material and Methods 4.1. Field Work 4.1.1. Terrain Photography 4.1.2. Differential Global Positioning System (DGPS) 4.1.3. Light Detection And Ranging (LiDAR) and Digital Elevation Model (DEM) 4.1.4. Micrometeorology 4.1.5. Discharge Measurement 4.1.6. Multiple Regression-Statistical Relationships between Micrometeorological Variables and Discharge 4.1.7. Sampling 4.2. Laboratory Analyses 4.2.1. Sedimentological Analyses 4.2.2. Hydrochemical Analyses 4.3. Fluxes of Sediment and (In-) Organic Matter 5. Results 5.1. Field Work 5.1.1. Terrain Photography 5.1.2. Differential Global Positioning System (DGPS) 5.1.3. Light Detecting And Ranging (LiDAR) and Digital Elevation Model (DEM) 5.1.4. Micrometeorology 5.1.5. Discharge 5.1.6. Multiple Regression - Statistical Relationships between Micrometeorology and Discharge 5.2. Laboratory Analyses 5.2.1. Sedimentological Analyses 5.2.2. Hydrochemical Analyses 5.3. Fluxes of Sediment-meltwater 6. Discussion 6.1. Microclimatological and Geomorphological Factors Controlling Discharge 6.1.1. Diurnal Variations 6.1.2. Seasonal Variations 6.2. Contribution of Retrogressive Thaw Slumps to the Sediment Budget of the Yukon Coast 6.2.1. Origin of Outflow Material 6.2.2. Slump D in the Regional Context 6.2.3. Seasonal Sediment Budget Compilation for Slump D 6.2.4. Retrogressive Thaw Slump Occurrence along the Yukon Coast 6.2.5. Input to the Beaufort Sea 6.3. Projected Climatic Change and its Impact on Retrogressive Thaw Slump Outflow 6.4. Uncertainties and Limitations 6.5. Future Research 7. Conclusion 8. Appendix 8.1. Field Work 8.1.1. Slump D's northern headwall profile 8.1.2. Collinson Head slump 8.1.3. Herschel Island West Coast slump 8.1.4. Roland Bay slump 8.1.5. Kay Point slump 8.2. Laboratory Work 8.2.1. Volumetric Ice Content 8.2.2. Grain Size 8.3. Evolution of Slump D 8.3.1. Geo Eye satellite of Slump D 8.3.2. Aerial Oblique Photography of Slump D 8.3.3. LiDAR of Slump D 8.3.4. Time Lapse Photography of Slump D's Headwall 9. References 10. Financial and technical support 11. Acknowledgement - Danksagung

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

Note: Dissertation, Universität Potsdam, 2018 , Contents Acknowledgements Abstract (English/Deutsch/Français) List of figures List of tables 1 Introduction 1.1 Scientic background 1.1.1 The Arctic coast, permafrost and climate change 1.1.2 Organic carbon in permafrost soils 1.1.3 Hillslope thermokarst processes 1.2 Aims 1.3 Study region 1.4 Methods 1.4.1 Mapping 1.4.2 Spline interpolation and volumes estimations 1.4.3 Fieldwork 1.4.4 Geochemical analyses 1.4.5 Statistical analyses 1.5 Thesis outline 1.6 Authors’ contributions 2 Synthesis 2.1 Retrogressive thaw slumps are widely spread in ice-rich permafrost areas 2.2 Retrogressive thaw slumps contribute signicantly to the nearshore or-ganic carbon 2.3 Thermokarst impacts the distribution of soil organic carbon along hill-slopes 2.4 Outlook . 3 Terrain Controls on the Occurrence of Coastal RTSs 3.1 Abstract 3.2 Introduction 3.3 Study area 3.4 Methods 3.4.1 Mapping of retrogressive thaw slumps and landform classication 3.4.2 Environmental variables 3.4.3 Univariate regression trees 3.5 Results 3.5.1 Characteristics of retrogressive thaw slumps 3.5.2 Density and areal coverage of retrogressive thaw slumps 3.6 Discussion 3.6.1 Characteristics and distribution of retrogressive thaw slumps 3.6.2 Terrain factors explaining retrogressive thaw slump occurrence 3.6.3 Coastal Processes 3.7 Conclusion 4 RTSs release sediments and organic carbon into the Arctic Ocean 4.1 Abstract 4.2 Introduction 4.3 Study Area 4.4 Methods 4.4.1 Evolution of retrogressive thaw slumps 4.4.2 Volume Estimations 4.4.3 Estimates of soil and dissolved organic carbon values 4.5 Results 4.5.1 Evolution of retrogressive thaw slumps between 1952 and 2011 4.5.2 Eroded material and estimated amount of mobilized SOC and DOC 4.6 Discussion 4.6.1 Increase in slump activity 4.6.2 Eroded material from retrogressive thaw slumps and organic car-bon uxes 4.6.3 Impact of retrogressive thaw slumps on the coastal ecosystem 4.7 Conclusion 5 Snapshot of carbon and nitrogen distribution in Arctic valleys 5.1 Abstract 5.2 Introduction 5.3 Study Area 5.4 Methods 5.4.1 Spatial analyses 5.4.2 Sampling Scheme 5.4.3 Geochemical analyses 5.4.4 Environmental variables and statistical analyses 5.5 Results 5.5.1 Geomorphology of the valleys 5.5.2 Spatial distribution of carbon and nitrogen 5.5.3 Correlations between soil characteristics and geochemical variables 5.6 Discussion 5.6.1 Variability in soil and geochemical properties in Arctic valleys 5.6.2 Hillslope Processes 5.7 Conclusion 6 Eidessttatliche Erklärung A Appendix A.1 Chapter 3 A.2 Chapter 4 A.3 Chapter 5 Bibliography