Results 121 to 130 of about 4,605 (227)

Permafrost degradation under expanding thermokarst lakes, Yukon, Canada

open access: yes, 2014
This poster presents patterns of permafrost degradation under lakes with eroding shorelines in Old Crow Flats, Northern Yukon. Old Crow Flats is an arctic peatland in the continuous permafrost zone. Two shorelines with contrasting rates of recession, bank morphology, and vegetation cover were studied in the field.
openaire   +1 more source

Thermokarst lakes of Western Siberia: a complex biogeochemical multidisciplinary approach

open access: yesInternational Journal of Environmental Studies, 2014
Western Siberia’s thermokarst lakes are highly dynamic hydrochemical systems that receive chemical elements from the surrounding peat soil and exchange greenhouse gases with the atmosphere, delivering dissolved carbon and metals to adjacent hydrological systems.
Pokrovsky, Oleg S.   +7 more
openaire   +2 more sources

Permafrost Database Development, Characterization, and Mapping for Northern Alaska [PDF]

open access: yes, 2014
List of Figures - ii List of Tables - iii Acknowledgements - iii Introduction - 1 Study Area - 2 Methods - 2 Permafrost Data Compilation - 2 Geomorphic Units - 3 Classification - 3 Mapping - 3 Permafrost-soil Landscapes - 4 Classification - 4
Grunblatt, Jess   +5 more
core  

Quantification of upland thermokarst features with high resolution remote sensing

open access: yesEnvironmental Research Letters, 2013
Climate-induced changes to permafrost are altering high latitude landscapes in ways that could increase the vulnerability of the vast soil carbon pools of the region.
E F Belshe, E A G Schuur, G Grosse
doaj   +1 more source

Arctic Thermokarst Lakes – Carbon Comes and Goes

open access: yes
This PhD project focused on the physical and biogeochemical variability of Arctic thermokarst lake sediments and the resulting impact on the greenhouse gas (GHG) emissions of these lakes. A better understanding of this topic is of importance because thermokarst lakes induce large-scale erosion of sediment organic carbon (SOC) along their shorelines ...
openaire   +2 more sources

The alaas: the interplay between environment and Sakhas in Central-Yakutia [PDF]

open access: yes, 2012
Alaases, thermokarst depressions formed in the permafrost environment of Yakutia (north-eastern Siberia) provide fertile hayfields for the Sakha cattle economy.
Mészáros, Csaba
core  

Arctic thermokarst lakes and the carbon cycle [PDF]

open access: yesPAGES news, 2009
Mary Edwards   +5 more
openaire   +1 more source

Remote sensing of drained thermokarst lake basin successions

open access: yes, 2018
Thermokarst lakes are important factors for permafrost landscape dynamics and carbon cycling. Thermokarst lake cover is particularly high in Arctic lowlands with ice-rich permafrost. In many of these vast lowland regions, drained thermokarst lake basins of different age have been identified that overlap each other in space, suggesting intense dynamics ...
Grosse, Guido   +8 more
openaire   +1 more source

Emerging thermokarst lakes amplify benthic activity and carbon mobilization in a continuous permafrost landscape

open access: yesEnvironmental Research Communications
Continuous permafrost zones are experiencing accelerated thaw due to Arctic warming, resulting in considerable greenhouse gas (GHG) emissions that significantly impact climate feedbacks.
Diogo Folhas   +4 more
doaj   +1 more source

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