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  • 1
    Online Resource
    Online Resource
    Arctic permafrost atlas (2023)
    Arendal : GRID-Arendal
    Details
    UID:
    kobvindex_GFZ20231025103940
    Format: 1 Online-Ressource (174 Seiten) , Illustrationen
    Content: 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”.
    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
    Additional Edition: Erscheint auch als Druckausgabe Arctic permafrost atlas
    Language: English
    Keywords: Atlas
    URL: https://www.grida.no/publications/998
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  • 2
    Online Resource
    Online Resource
    Serpentine (Floating) Ice Channels and their Interaction with Riverbed Permafrost in the Lena River Delta, Russia (2021)
    Berlin : Humboldt-Universität zu Berlin
    Details
    UID:
    edochu_18452_24010
    Format: 1 Online-Ressource (16 Seiten)
    Content: Arctic deltas and their river channels are characterized by three components of the cryosphere: snow, river ice, and permafrost, making them especially sensitive to ongoing climate change. Thinning river ice and rising river water temperatures may affect the thermal state of permafrost beneath the riverbed, with consequences for delta hydrology, erosion, and sediment transport. In this study, we use optical and radar remote sensing to map ice frozen to the riverbed (bedfast ice) vs. ice, resting on top of the unfrozen water layer (floating or so-called serpentine ice) within the Arctic’s largest delta, the Lena River Delta. The optical data is used to differentiate elevated floating ice from bedfast ice, which is flooded ice during the spring melt, while radar data is used to differentiate floating from bedfast ice during the winter months. We use numerical modeling and geophysical field surveys to investigate the temperature field and sediment properties beneath the riverbed. Our results show that the serpentine ice identified with both types of remote sensing spatially coincides with the location of thawed riverbed sediment observed with in situ geoelectrical measurements and as simulated with the thermal model. Besides insight into sub-river thermal properties, our study shows the potential of remote sensing for identifying river channels with active sub-ice flow during winter vs. channels, presumably disconnected for winter water flow. Furthermore, our results provide viable information for the summer navigation for shallow-draught vessels.
    In: Lausanne : Frontiers Media, 9
    Language: English
    DOI: 10.18452/23359
    DOI: 10.3389/feart.2021.689941
    URN: urn:nbn:de:kobv:11-110-18452/24010-7
    URL: Volltext  (kostenfrei)
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  • 3
    Book
    Book
    Arctic permafrost atlas (2023)
    Arendal : GRID-Arendal
    Details
    UID:
    kobvindex_GFZ20231025103941
    Format: 174 Seiten , Illustrationen
    Content: 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”.
    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
    Additional Edition: Erscheint auch als E-Book Arctic permafrost atlas
    Language: English
    Keywords: Atlas
    URL: https://www.grida.no/publications/998
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  • 4
    Online Resource
    Online Resource
    Brief communication: Testing a portable Bullard-type temperature lance confirms highly spatially heterogeneous sediment temperatures under shallow bodies of water in the Arctic (2024)
    Berlin : Humboldt-Universität zu Berlin
    Details
    UID:
    edochu_18452_29672
    Format: 1 Online-Ressource (9 Seiten)
    Content: The thermal regime in the sediment column below shallow bodies of water in Arctic permafrost controls benthic habitats and permafrost stability. We present a robust, portable device that measures detailed temperature–depth profiles of the near-surface sediments in less than 1 h. Test campaigns in the Canadian Arctic and on Svalbard have demonstrated its utility in a range of environments during winter and summer. Measured temperatures were spatially heterogeneous, even within single bodies of water. We observed the broadest temperature range in water less than 1 m deep, a zone that is not captured by single measurements in deeper water.
    Content: Peer Reviewed
    In: Katlenburg-Lindau : Copernicus, 18,5, Seiten 2603-2611
    Language: English
    DOI: 10.18452/29050
    DOI: 10.5194/tc-18-2603-2024
    URN: urn:nbn:de:kobv:11-110-18452/29672-1
    URL: Volltext  (kostenfrei)
    Library Location Call Number Volume/Issue/Year Availability
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    Fulltext
    HU Berlin
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