Results 11 to 20 of about 5,638 (244)

Onshore Thermokarst Primes Subsea Permafrost Degradation [PDF]

open access: yesGeophysical Research Letters, 2021
Abstract The response of permafrost to marine submergence can vary between ice‐rich late Pleistocene deposits and the thermokarst basins that thawed out during the Holocene. We hypothesize that inundated Alases offshore thaw faster than submerged Yedoma. To test this hypothesis, we estimated depths to the top of ice‐bearing permafrost
Angelopoulos, Michael   +11 more
openaire   +6 more sources

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   +2 more sources

Patterns and persistence of hydrologic carbon and nutrient export from collapsing upland permafrost [PDF]

open access: yesBiogeosciences, 2015
As high latitudes warm, vast stocks of carbon and nitrogen stored in permafrost will become available for transport to aquatic ecosystems. While there is a growing understanding of the potential effects of permafrost collapse (thermokarst) on aquatic ...
B. W. Abbott   +4 more
doaj   +1 more source

Interaction of thermokarst lake and permafrost in Qinghai-Tibet Plateau

open access: yesShui kexue jinzhan, 2022
In order to clarify the interaction of thermokarst lake and permafrost, a water-ice-heat coupling model considering heat conduction and convection processes was established at a typical thermokarst lake area in the Beiluhe Basin.
Xianmin KE   +4 more
doaj   +1 more source

Research into Cryolithozone Spatial Pattern Changes Based on the Mathematical Morphology of Landscapes

open access: yesEnergies, 2022
Lacustrine thermokarst is receiving great interest as a landscape-forming process. Despite this, research dealing with the quantitative analysis of the changes in the morphological patterns of thermokarst plains under ongoing climate change is lacking ...
Alexey Victorov   +4 more
doaj   +1 more source

Roles of Thermokarst Lakes in a Warming World [PDF]

open access: yesTrends in Microbiology, 2020
Permafrost covers a quarter of the northern hemisphere land surface and contains twice the amount of carbon that is currently present in the atmosphere. Future climate change is expected to reduce its near-surface cover by over 90% by the end of the 21st century, leading to thermokarst lake formation.
Michiel H. in 't Zandt   +2 more
openaire   +5 more sources

Seasonal deformation monitoring over thermokarst landforms using terrestrial laser scanning in Northeastern Qinghai-Tibetan Plateau

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
Climate warming has accelerated permafrost degradation over the Qinghai-Tibet Plateau (QTP) over the past several decades. The development of thermokarst landforms is a key indicator of permafrost degradation, while it lacks quantified measurements and ...
Wen Zhong   +6 more
doaj   +1 more source

Landsat-Based Monitoring of Landscape Dynamics in Arctic Permafrost Region

open access: yesJournal of Remote Sensing, 2022
Ice-rich permafrost thaws as a result of Arctic warming, and the land surface collapses to form characteristic thermokarst landscapes. Thermokarst landscapes can bring instability to the permafrost layer, affecting regional geomorphology, hydrology, and ...
Yating Chen, Aobo Liu, Xiao Cheng
doaj   +1 more source

Mapping thermokarst lakes in different physical states on the central Tibetan plateau

open access: yesInternational Journal of Digital Earth, 2023
Mapping and monitoring the spatial–temporal evolution of thermokarst lakes on the Tibetan Plateau can significantly contribute to the estimation of climate change impacts on permafrost degradation.
Yuanyuan Qin, Ping Lu, Jicang Wu
doaj   +1 more source

Abrupt permafrost thaw accelerates carbon dioxide and methane release at a tussock tundra site

open access: yesArctic, Antarctic, and Alpine Research, 2022
Abrupt thaw could cause permafrost ecosystems to release more carbon than is predicted from gradual thaw alone. However, thermokarst feature mapping is limited in scope, and observed responses of carbon fluxes to abrupt thaw are variable.
Heidi Rodenhizer   +7 more
doaj   +1 more source

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