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  • 1
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    Arctic permafrost atlas (2023)
    Arendal : GRID-Arendal
    Details
    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
    URL: https://www.grida.no/publications/998
    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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    E-BOOK
  • 2
    Monograph available for loan
    Monograph available for loan
    Arctic permafrost atlas (2023)
    Arendal : GRID-Arendal
    Details Availability
    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
    URL: https://www.grida.no/publications/998
    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
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    Origin and characteristics of massive ground ice on Herschel Island (western Canadian Arctic) as revealed by stable water isotope and Hydrochemical signatures (2011)
    Wiley
    Details
    Publication Date: 2011-01-01
    Print ISSN: 1045-6740
    Electronic ISSN: 1099-1530
    Topics: Geography , Geosciences
    Published by Wiley
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  • 4
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    Report from the International Permafrost Association: education and outreach for the International Polar Year (2007)
    Wiley
    Details
    Publication Date: 2007-01-01
    Print ISSN: 1045-6740
    Electronic ISSN: 1099-1530
    Topics: Geography , Geosciences
    Published by Wiley
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  • 5
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    Report from the International Permafrost Association (2011)
    Wiley
    Details
    Publication Date: 2011-10-01
    Print ISSN: 1045-6740
    Electronic ISSN: 1099-1530
    Topics: Geography , Geosciences
    Published by Wiley
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  • 6
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    Terrain controls on the occurrence of coastal retrogressive thaw slumps along the Yukon Coast, Canada (2017)
    Wiley
    In:  EPIC3Journal of Geophysical Research-Earth Surface, Wiley, 122, pp. 1619-1634, ISSN: 0148-0227
    Details
    Publication Date: 2018-08-30
    Description: Retrogressive thaw slumps (RTSs) are among the most active landforms in the Arctic; their number has increased significantly over the past decades. While processes initiating discrete RTSs are well identified, the major terrain controls on the development of coastal RTSs at a regional scale are not yet defined. Our research reveals the main geomorphic factors that determine the development of RTSs along a 238 km segment of the Yukon Coast, Canada. We (1) show the current extent of RTSs, (2) ascertain the factors controlling their activity and initiation, and (3) explain the spatial differences in the density and areal coverage of RTSs. We mapped and classified 287 RTSs using high-resolution satellite images acquired in 2011. We highlighted the main terrain controls over their development using univariate regression trees model. Coastal geomorphology influenced both the activity and initiation of RTSs: active RTSs and RTSs initiated after 1972 occurred primarily on terrains with slope angles greater than 3.9° and 5.9°, respectively. The density and areal coverage of RTSs were constrained by the volume and thickness of massive ice bodies. Differences in rates of coastal change along the coast did not affect the model. We infer that rates of coastal change averaged over a 39 year period are unable to reflect the complex relationship between RTSs and coastline dynamics. We emphasize the need for large-scale studies of RTSs to evaluate their impact on the ecosystem and to measure their contribution to the global carbon budget.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 7
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    Variability in Rates of Coastal Change Along the Yukon Coast, 1951 to 2015 (2018)
    Wiley
    In:  EPIC3Journal of Geophysical Research-Earth Surface, Wiley, 123, pp. 779-800, ISSN: 0148-0227
    Details
    Publication Date: 2018-12-29
    Description: To better understand the reaction of Arctic coasts to increasing environmental pressure, coastal changes along a 210-km length of the Yukon Territory coast in north-west Canada were investigated. Shoreline positions were acquired from aerial and satellite images between 1951 and 2011. Shoreline change rates were calculated for multiple time periods along the entire coast and at six key sites. Additionally, Differential Global Positioning System (DGPS) measurements of shoreline positions from seven field sites were used to analyze coastal dynamics from 1991 to 2015 at higher spatial resolution. The whole coast has a consistent, spatially averaged mean rate of shoreline change of 0.7 ± 0.2 m/a with a general trend of decreasing erosion from west to east. Additional data from six key sites shows that the mean shoreline change rate decreased from �1.3 ± 0.8 (1950s–1970s) to �0.5 ± 0.6 m/a (1970s–1990s). This was followed by a significant increase in shoreline change to �1.3 ± 0.3 m/a in the 1990s to 2011. This increase is confirmed by DGPS measurements that indicate increased erosion rates at local rates up to �8.9 m/a since 2006. Ground surveys and observations with remote sensing data indicate that the current rate of shoreline retreat along some parts of the Yukon coast is higher than at any time before in the 64-year-long observation record. Enhanced availability of material in turn might favor the buildup of gravel features, which have been growing in extent throughout the last six decades.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 8
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    Coastal Erosion of Permafrost Soils Along the Yukon Coastal Plain and Fluxes of Organic Carbon to the Canadian Beaufort Sea (2018)
    Wiley
    In:  EPIC3Journal of Geophysical Research-Biogeosciences, Wiley, 123(2), pp. 406-422, ISSN: 0148-0227
    Details
    Publication Date: 2018-08-13
    Description: Reducing uncertainties about carbon cycling is important in the Arctic where rapid environmental changes contribute to enhanced mobilization of carbon. Here we quantify soil organic carbon (SOC) contents of permafrost soils along the Yukon Coastal Plain and determine the annual fluxes from coastal erosion. Different terrain units were assessed based on surficial geology, morphology, and ground ice conditions. To account for the volume of wedge ice and massive ice in a unit, SOC contents were reduced by 19% and sediment contents by 16%. The SOC content in a 1 m² column of soil varied according to the height of the bluff, ranging from 30 to 662 kg, with a mean value of 183 kg. Forty‐four per cent of the SOC was within the top 1 m of soil and values varied based on surficial materials, ranging from 30 to 53 kg C/m³, with a mean of 41 kg. Eighty per cent of the shoreline was erosive with a mean annual rate of change of −0.7 m/yr. This resulted in a SOC flux per meter of shoreline of 132 kg C/m/yr, and a total flux for the entire 282 km of the Yukon coast of 35.5 × 10^6 kg C/yr (0.036 Tg C/yr). The mean flux of sediment per meter of shoreline was 5.3 × 103 kg/m/yr, with a total flux of 1,832 × 10^6 kg/yr (1.832 Tg/yr). Sedimentation rates indicate that approximately 13% of the eroded carbon was sequestered in nearshore sediments, where the overwhelming majority of organic carbon was of terrestrial origin.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 9
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    Nearshore zone dynamics determine pathway of organic carbon from eroding permafrost coasts (2020)
    Wiley
    In:  EPIC3Geophysical Research Letters, Wiley, 47, ISSN: 0094-8276
    Details
    Publication Date: 2022-07-04
    Description: Collapse of permafrost coasts delivers large quantities of particulate organic carbon (POC) to arctic coastal areas. With rapidly‐changing environmental conditions, sediment and organic carbon (OC) mobilization and transport pathways are also changing. Here, we assess the sources and sinks of POC in the highly‐dynamic nearshore zone of Herschel Island ‐ Qikiqtaruk (Yukon, Canada). Our results show that POC concentrations sharply decrease, from 15.9 to 0.3 mg L‐1, within the first 100 – 300 meters offshore. Simultaneously, radiocarbon ages of POC drop from 16,400 to 3,600 14C years, indicating rapid settling of old permafrost POC to underlying sediments. This suggests that permafrost OC is, apart from a very narrow resuspension zone (〈5 m water depth), predominantly deposited in nearshore sediments. While long‐term storage of permafrost OC in marine sediments potentially limits biodegradation and its subsequent release as greenhouse gas, resuspension of fine‐grained, OC‐rich sediments in the nearshore zone potentially enhances OC turnover.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , NonPeerReviewed , info:eu-repo/semantics/article
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  • 10
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    Eroding permafrost coasts release low amounts of dissolved organic carbon (DOC) from ground ice into the nearshore zone of the Arctic Ocean (2016)
    Wiley
    In:  EPIC3Global Biogeochemical Cycles, Wiley, 30(7), pp. 1054-1068, ISSN: 0886-6236
    Details
    Publication Date: 2022-08-12
    Description: Ice-rich permafrost coasts in the Arctic are highly sensitive to climate warming and erode at a pace that exceeds the global average. Permafrost coasts deliver vast amounts of organic carbon into the nearshore zone of the Arctic Ocean. Numbers on flux exist for particulate organic carbon (POC) and total or soil organic carbon (TOC, SOC). However, they do not exist for dissolved organic carbon (DOC), which is known to be highly bioavailable. This study aims to estimate DOC stocks in coastal permafrost as well as the annual flux into the ocean. DOC concentrations in ground ice were analyzed along the ice-rich Yukon coast (YC) in the western Canadian Arctic. The annual DOC flux was estimated using available numbers for coast length, cliff height, annual erosion rate, and volumetric ice content in different stratigraphic horizons. Our results showed that DOC concentrations in ground ice range between 0.3 and 347.0 mg L^-1 with an estimated stock of 13.6 ± 3.0 g m^-3 along the YC. An annual DOC flux of 54.9 ± 0.9 Mg yr^-1 was computed. These DOC fluxes are low compared to POC and SOC fluxes from coastal erosion or POC and DOC fluxes from Arctic rivers. We conclude that DOC fluxes from permafrost coasts play a secondary role in the Arctic carbon budget. However, this DOC is assumed to be highly bioavailable. We hypothesize that DOC from coastal erosion is important for ecosystems in the Arctic nearshore zones, particularly in summer when river discharge is low, and in areas where rivers are absent.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , NonPeerReviewed
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