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  • 1
    Call number: AWI G3-24-95728
    Description / Table of Contents: This atlas is an attempt to translate and consolidate the available knowledge on permafrost. It is a timely book suffused with the compelling enthusiasm of its authors and contributors. Close to a hundred individuals participated in its making, and it does a magnificent job at describing permafrost with maps, words, art, and stories. Far from being an academic product in the traditional sense, it gathers the knowledge from the voices of scientists, Indigenous Peoples, northern residents, and local practitioners to provide a holistic and inclusive view of today’s challenges in the “country of permafrost”.
    Type of Medium: Monograph available for loan
    Pages: 174 Seiten , Illustrationen
    Language: English
    Note: Contents Foreword Prologue Earth’s Freezer: Introduction to Permafrost Frozen grounds: Permafrost in the Arctic Permafrost in profile: Landscape features Frozen in time: The history of permafrost An icy balance: Arctic permafrost physiography What lies within: Organic carbon in permafrost When ice grows up: Pingo Canadian Landmark Drilling down: Learning the secrets of permafrost Portrait: Annett Bartsch Un/settled: Life on frozen ground Frozen States I: Russian Federation Portrait: Vyacheslav Shadrin Frozen States II: North America Portrait: Jessi Pascal Frozen States III: Nordic region Portrait: Palle Jeremiassen Awakening Giant: Permafrost and Climate Change Warming up, warming down: Increasing ground temperatures The chill is gone: Thickening of the active layer Disappearing act: Declining permafrost extent Microorganisms, macro effects: Permafrost carbon cycle Faster, deeper, stronger I: Speed of thaw in North America Faster, deeper, stronger II: Speed of thaw in Scandinavia and the Russian Federation Crossing the threshold: Future scenarios of carbon release Portrait: Dmitry Streletskiy Moving Grounds: Permafrost Changes Frost and flora: The role of vegetation in permafrost landscapes Fire on ice: Peat, permafrost, and fire State of matter: Water, snow, and permafrost The rivers run through it: Arctic rivers, deltas and hydrology Along the edge of the world: Arctic coastal classification Wear and tear: Erosion of Arctic permafrost coasts Eating into the landscape: Retrogressive thaw slumps Portrait: Angus Alunik Losing ground: Projected rates of Arctic coastal erosion Beneath the waves: Changes in subsea permafrost Arctic Ripples: Impacts of Permafrost Thaw Feeling the heat: Permafrost thaw impacts on infrastructure Risky business I: North American Arctic and Kalaallit Nunaat (Greenland) Risky business II: The Russian Federation and Scandinavian Arctic Terra infirma I: Coastal infrastructure in Yamalo-Nenets Portrait: Susanna Gartler Terra infirma II: Reinforcing runways in Paulatuk Terra infirma III: Keeping cold food cold in Alaska Terra infirma IV: Urban planning in Ilulissat Nothing in isolation: Health and wellness and permafrost Portrait: Gwen Healey Akearok Toxic grounds: Contaminants and environmental health Coming back to life: Reemerging pathogens Frozen assets I: The formal economy Frozen assets II: Traditional and subsistence activities Cultural homeland: Alaas landscapes in Yakutia Holding Tight: Adaptation to Permafrost Thaw Bumpy road ahead: Transportation infrastructure and permafrost Undermined: Mining infrastructure and permafrost Keeping the light on: Energy infrastructure and permafrost No time to waste: Waste management and permafrost Modern history: Preserving Svalbard’s cultural heritage Portrait: Ingrid Rekkavik Going South: Permafrost in Other Areas A planetary perspective: Permafrost outside the Arctic Frozen giants: Permafrost in the mountains The view from the top: The Qinghai-Tibetan Plateau, Hindu Kush Himalaya, and Andes Europe’s frozen heart: Permafrost in the Alps The ends of the Earth I: Permafrost in Antarctica The ends of the Earth II: Antarctic Peninsula The ends of the Earth III: Queen Maud Land, Victoria Land, and the McMurdo Dry Valleys Over the Horizon Authors and contributors Acknowledgments Artist spotlight: Olga Borjon-Privé (Oluko) Artist spotlight: Katie Orlinsky Glossary Acronyms References
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 2
    Call number: E-book
    Description / Table of Contents: This atlas is an attempt to translate and consolidate the available knowledge on permafrost. It is a timely book suffused with the compelling enthusiasm of its authors and contributors. Close to a hundred individuals participated in its making, and it does a magnificent job at describing permafrost with maps, words, art, and stories. Far from being an academic product in the traditional sense, it gathers the knowledge from the voices of scientists, Indigenous Peoples, northern residents, and local practitioners to provide a holistic and inclusive view of today’s challenges in the “country of permafrost”.
    Type of Medium: 12
    Pages: 1 Online-Ressource (174 Seiten) , Illustrationen
    Language: English
    Note: Contents Foreword Prologue Earth’s Freezer: Introduction to Permafrost Frozen grounds: Permafrost in the Arctic Permafrost in profile: Landscape features Frozen in time: The history of permafrost An icy balance: Arctic permafrost physiography What lies within: Organic carbon in permafrost When ice grows up: Pingo Canadian Landmark Drilling down: Learning the secrets of permafrost Portrait: Annett Bartsch Un/settled: Life on frozen ground Frozen States I: Russian Federation Portrait: Vyacheslav Shadrin Frozen States II: North America Portrait: Jessi Pascal Frozen States III: Nordic region Portrait: Palle Jeremiassen Awakening Giant: Permafrost and Climate Change Warming up, warming down: Increasing ground temperatures The chill is gone: Thickening of the active layer Disappearing act: Declining permafrost extent Microorganisms, macro effects: Permafrost carbon cycle Faster, deeper, stronger I: Speed of thaw in North America Faster, deeper, stronger II: Speed of thaw in Scandinavia and the Russian Federation Crossing the threshold: Future scenarios of carbon release Portrait: Dmitry Streletskiy Moving Grounds: Permafrost Changes Frost and flora: The role of vegetation in permafrost landscapes Fire on ice: Peat, permafrost, and fire State of matter: Water, snow, and permafrost The rivers run through it: Arctic rivers, deltas and hydrology Along the edge of the world: Arctic coastal classification Wear and tear: Erosion of Arctic permafrost coasts Eating into the landscape: Retrogressive thaw slumps Portrait: Angus Alunik Losing ground: Projected rates of Arctic coastal erosion Beneath the waves: Changes in subsea permafrost Arctic Ripples: Impacts of Permafrost Thaw Feeling the heat: Permafrost thaw impacts on infrastructure Risky business I: North American Arctic and Kalaallit Nunaat (Greenland) Risky business II: The Russian Federation and Scandinavian Arctic Terra infirma I: Coastal infrastructure in Yamalo-Nenets Portrait: Susanna Gartler Terra infirma II: Reinforcing runways in Paulatuk Terra infirma III: Keeping cold food cold in Alaska Terra infirma IV: Urban planning in Ilulissat Nothing in isolation: Health and wellness and permafrost Portrait: Gwen Healey Akearok Toxic grounds: Contaminants and environmental health Coming back to life: Reemerging pathogens Frozen assets I: The formal economy Frozen assets II: Traditional and subsistence activities Cultural homeland: Alaas landscapes in Yakutia Holding Tight: Adaptation to Permafrost Thaw Bumpy road ahead: Transportation infrastructure and permafrost Undermined: Mining infrastructure and permafrost Keeping the light on: Energy infrastructure and permafrost No time to waste: Waste management and permafrost Modern history: Preserving Svalbard’s cultural heritage Portrait: Ingrid Rekkavik Going South: Permafrost in Other Areas A planetary perspective: Permafrost outside the Arctic Frozen giants: Permafrost in the mountains The view from the top: The Qinghai-Tibetan Plateau, Hindu Kush Himalaya, and Andes Europe’s frozen heart: Permafrost in the Alps The ends of the Earth I: Permafrost in Antarctica The ends of the Earth II: Antarctic Peninsula The ends of the Earth III: Queen Maud Land, Victoria Land, and the McMurdo Dry Valleys Over the Horizon Authors and contributors Acknowledgments Artist spotlight: Olga Borjon-Privé (Oluko) Artist spotlight: Katie Orlinsky Glossary Acronyms References
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  • 3
    Publication Date: 2024-02-15
    Description: 〈title xmlns:mml="http://www.w3.org/1998/Math/MathML"〉Abstract〈/title〉〈p xmlns:mml="http://www.w3.org/1998/Math/MathML" xml:lang="en"〉Ice wedge polygons on steep slopes have generally been described as being covered by periglacial sediments and, typically, the active layer on slopes becomes mobile during thaw periods, which can lead to solifluction. In West Greenland close to the ice margin, however, the active layer and ice wedge polygons are stable despite their occurrence on steep slopes with inclinations of ≥30°. We conducted a soil survey (including sampling for soil analyses and radiocarbon dating) in the Umimmalissuaq valley and installed a field station ~4 km east of the current ice margin to monitor soil temperature and water tension at depths of 10, 20 and 35 cm of the active layer on a steep, north‐facing slope in the middle of an ice wedge polygon from 2009 to 2015. Thawing and freezing periods lasted between 2 and 3 months and the active layer was usually completely frozen from November to April. We observed simultaneous and complete water saturation at all three depths of the active layer in one summer for 1 day. The amount of water in the active layer apparently was not enough to trigger solifluction during the summer thaw, even at slope inclinations above 30°. In addition, the dense shrub tundra absorbs most of the water during periods between thawing and freezing, which further stabilizes the slope. This process, together with the dry and continental climate caused by katabatic winds combined with no or limited frost heave, plays a crucial role in determining the stability of these slopes and can explain the presence of large‐scale stable ice wedge polygon networks in organic matter‐rich permafrost, which is about 5,000 years old. This study underlines the importance of soil hydrodynamics and local climate regime for landscape stability and differing intensities of solifluction processes in areas with strong geomorphological gradients and rising air temperatures.〈/p〉
    Keywords: ddc:551.3 ; permafrost ; soil temperature ; soil water tension ; solifluction
    Language: English
    Type: doc-type:article
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