Results 41 to 50 of about 4,444 (222)

Differences in behavior and distribution of permafrost-related lakes in Central Yakutia and their response to climatic drivers [PDF]

open access: yes, 2017
The Central Yakutian permafrost landscape is rapidly being modified by land use and global warming, but small-scale thermokarst process variability and hydrological conditions are poorly understood.
Aré F. E.   +7 more
core   +1 more source

Contrasted geomorphological and limnological properties of thermokarst lakes formed in buried glacier ice and ice-wedge polygon terrain [PDF]

open access: yesThe Cryosphere, 2022
In formerly glaciated permafrost regions, extensive areas are still underlain by a considerable amount of glacier ice buried by glacigenic sediments. It is expected that large parts of glacier ice buried in the permafrost will melt in the near future ...
S. Coulombe   +14 more
doaj   +1 more source

Permafrost - physical aspects and carbon cycling, databases and uncertainties [PDF]

open access: yes, 2012
Permafrost is defined as ground that remains below 0°C for at least 2 consecutive years. About 24% of the northern hemisphere land area is underlain by permafrost.
Boike, Julia   +8 more
core   +1 more source

Thermokarst lakes disturb the permafrost structure and stimulate through-talik formation in the Qinghai–Tibet Plateau, China: a hydrogeophysical investigation [PDF]

open access: yesThe Cryosphere
Thermokarst lakes are widely distributed in the Qinghai–Tibet Plateau (QTP) and continuously disturb the permafrost structure. Investigating the permafrost and sublake talik structures is crucial to assessing and predicting the fate of the ecosystem and ...
X. Ke   +7 more
doaj   +1 more source

Identifying thermokarst lakes using deep learning and high-resolution satellite images

open access: yesScience of Remote Sensing
Thermokarst lakes play a critical role in hydrologic connectivity, permafrost stability, and carbon exchange from local to regional scales. Due to the typically small sizes and highly dynamic nature of thermokarst lakes, their identification in large ...
Kuo Zhang   +7 more
doaj   +1 more source

A synthesis of methane dynamics in thermokarst lake environments [PDF]

open access: yesEarth-Science Reviews, 2020
Abstract Greenhouse gas emissions from physical permafrost thaw disturbance and subsidence, including the formation and expansion of thermokarst (thaw) lakes, may double the magnitude of the permafrost carbon feedback this century. These processes are not accounted for in current global climate models.
Heslop, J.   +7 more
openaire   +3 more sources

Changes in the Distribution of Thermokarst Lakes on the Qinghai-Tibet Plateau from 2015 to 2020

open access: yesRemote Sensing
Thermokarst lakes are widely distributed on the Qinghai-Tibet Plateau (QTP). However, owing to the lack of high-precision remote sensing imagery and the difficulty of in situ monitoring of permafrost regions, quantifying the changes in the distribution ...
Rongrong Wei, Xia Hu, Shaojie Zhao
doaj   +1 more source

Size matters: Aerobic methane oxidation in sediments of shallow thermokarst lakes

open access: yesGlobal Change Biology, 2023
AbstractShallow thermokarst lakes are important sources of greenhouse gases (GHGs) such as methane (CH4) and carbon dioxide (CO2) resulting from continuous permafrost thawing due to global warming. Concentrations of GHGs dissolved in water typically increase with decreasing lake size due to coastal abrasion and organic matter delivery.
Manasypov, Rinat   +6 more
openaire   +4 more sources

Multiple tracers demonstrate distinct sources of dissolved organic matter to lakes of the Mackenzie Delta, western Canadian Arctic [PDF]

open access: yes, 2011
Author Posting. © American Society of Limnology and Oceanography, 2011. This article is posted here by permission of American Society of Limnology and Oceanography for personal use, not for redistribution.
Gareis, Jolie A. L.   +4 more
core   +1 more source

The evolution of the ecosystems of thermokarst lakes of the Bolshezemelskaya tundra in the context of climate change [PDF]

open access: yesE3S Web of Conferences, 2019
In the conditions of climate warming, the thawing of permafrost can provoke the formation of new thermokarst lakes and subsidence, which facilitates the removal of organic matter from thawed peat into natural waters.
Shirokova Liudmila   +11 more
doaj   +1 more source

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