Results 51 to 60 of about 1,495 (203)

Thermokarst lake changes over the past 40 years in the Qinghai–Tibet Plateau, China

Frontiers in Environmental Science, 2022
A thermokarst lake is generally defined as a lake that occupies a closed basin and is created by the massive melting of ground ice in ice-rich permafrost regions, which has a great impact on regional hydro-ecological equilibrium and permafrost ...
Lan Li, Xindi Zhang, Xuan Li, Shufang Zhao, Wankui Ni, Zhenzhen Yang   +5 more
doaj   +1 more source

Comparison of hydrogeochemical characteristics of thermokarst lake water in the Qinghai–Tibet Plateau under active layer freeze–thaw conditions

Journal of Water and Climate Change, 2022
With the gradual increase of global temperature, thermokarst lakes are widely developed and become major environmental disasters in the Tundra Plateau which have impacted the stability of the project such as the Qinghai–Tibetan highway.
Yahong Fang, Zejun Liu, Qiaofen Lyu, Haiyang Hu, Wei Wang   +4 more
doaj   +1 more source

Organic carbon content in degrading permafrost beneath expanding thermokarst lakes [PDF]

, 2014
Arctic lakes are globally significant sources of methane, resulting from anaerobic decomposition of thawed organic matter in lake bottoms. We examined patterns of permafrost degradation near thermokarst lakeshores in the tundra of Old Crow Flats, a 5600 ...
Pascale Roy-léveillée (580099)
core   +1 more source

Seasonal patterns in greenhouse gas emissions from different types of thermokarst lakes in Central Yakutia (Eastern Siberia) [PDF]

, 2021
International audienceIn the ice‐rich permafrost area of Central Yakutia (Eastern Siberia, Russia), climate warming and other natural and anthropogenic disturbances have caused permafrost degradation and soil subsidence, resulting in the formation of ...
Bouchard, Frédéric, Lara Hughes‐Allen, Hughes‐Allen, Lara, Laurion, Isabelle, Costard, François, Desyatkin, Alexey, Hatté, Christine, Alexander Fedorov, François Costard, Séjourné, Antoine, Antoine Séjourné, Hughes-Allen, Lara, Costard, F., Isabelle Laurion, Alexey Desyatkin, Marlin, Christelle, Frédéric Bouchard, Christine Hatté, Christelle Marlin, Fedorov, Alexander   +19 more
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Contrasted geomorphological and limnological properties of thermokarst lakes formed in buried glacier ice and ice-wedge polygon terrain [PDF]

The 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, S. Coulombe, S. Coulombe, D. Fortier, D. Fortier, F. Bouchard, F. Bouchard, M. Paquette, S. Charbonneau, S. Charbonneau, D. Lacelle, I. Laurion, I. Laurion, R. Pienitz, R. Pienitz   +14 more
doaj   +1 more source

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

Science 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, Min Feng, Yijie Sui, Jinhao Xu, Dezhao Yan, Zhimin Hu, Fei Han, Earina Sthapit   +7 more
doaj   +1 more source

High methane emissions from thermokarst lakes in subarctic peatlands. [PDF]

, 2016
La transcription des symboles et des caractères spéciaux utilisés dans la version originale de ce résumé n’a pas été possible en raison de limitations techniques. La version correcte de ce résumé peut être lue dans le document original.
Matveev, Alex, Deshpande, Bethany N., Laurion, Isabelle, Bhiry, Najat, Vincent, Warwick   +4 more
core   +1 more source

Simulation and Prediction of Thermokarst Lake Surface Temperature Changes on the Qinghai–Tibet Plateau

Remote Sensing
Thermokarst lakes are shallow bodies of freshwater that develop in permafrost regions, and they are an essential focus of international permafrost research.
Chengming Zhang, Zeyong Gao, Jing Luo, Wenyan Liu, Mengjia Chen, Fujun Niu, Yibo Wang, Yunhu Shang   +7 more
doaj   +1 more source

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

E3S 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, Ivanova Irina, Manasypov Rinat, Pokrovsky Oleg, Chupakov Artem, Iglovsky Stanislav, Shorina Natalia, Zabelina Svetlana, Gofarov Mikhail, Payandi-Rolland Dahedrey, Chupakova Anna, Moreva Olga   +11 more
doaj   +1 more source

Geochemical, sedimentological and microbial diversity in two thermokarst lakes of far Eastern Siberia [PDF]

, 2023
Thermokarst lakes are important conduits for organic carbon sequestration, soil organic matter (soil-OM) decomposition and release of atmospheric greenhouse gases in the Arctic. They can be classified as either floating-ice lakes, which sustain a zone of
Welte, C.U., Rijkers, R., Karsanaev, S.V., van Huissteden, J., Maximov, T.C., Bouillon, S., Jetten, M.S.M., Reichart, G.-J., Dolman, H., Belelli Marchesini, L., Wacker, L., Dean, J.F., in ‘t Zandt, M.H., Goovaerts, A., Meisel, O.H., Vonk, J.E.   +15 more
core   +4 more sources