Results 21 to 30 of about 5,638 (244)

Research Progress on Effects of Thermokarst Lakes on Soil Carbon and Microbial Community

Shuitu baochi tongbao, 2022
[Objective] The impacts of thermokarst lakes formed by rapid thawing and collapsing of permafrost on soil carbon and microorganisms were studied in order to provide a reference for the study of ecological environment and greenhouse gas emissions in such ...
Zhao Yunduo, Hu Xia, Yang Zhiguang, Pan Pengyu   +3 more
doaj   +1 more source

A fully automatic framework for sub-pixel mapping of thermokarst lakes using Sentinel-2 images

Science of Remote Sensing, 2023
Mapping and monitoring thermokarst lakes are crucial to understanding the impact of climate change on permafrost regions and quantifying permafrost-related carbon emissions. Several automatic methods based on remote sensing images have been developed for
Yuanyuan Qin, Chengyuan Zhang, Ping Lu
doaj   +1 more source

Thermokarst Lake Susceptibility Assessment Induced by Permafrost Degradation in the Qinghai–Tibet Plateau Using Machine Learning Methods

Remote Sensing, 2023
The rapidly warming climate on the Qinghai–Tibet Plateau (QTP) leads to permafrost degradation, and the thawing of ice-rich permafrost induces land subsidence to facilitate the development of thermokarst lakes.
Rui Wang, Lanlan Guo, Yuting Yang, Hao Zheng, Lianyou Liu, Hong Jia, Baijian Diao, Jifu Liu   +7 more
doaj   +1 more source

Thermokarst-lake-basin sediments, Tuktoyaktuk Coastlands, western arctic Canada

, 1996
Three stages of deposition are distinguished in thermokarst-lake-basin sequences in ice-rich permafrost of the Tuktoyaktuk Coastlands, western arctic Canada: (1) widespread retrogressive thaw slumping around lake margins that rapidly transports upland ...
Julian Murton (4460746)
core   +2 more sources

Panarctic lakes exerted a small positive feedback on early Holocene warming due to deglacial release of methane

Communications Earth & Environment, 2023
Climate-driven permafrost thaw can release ancient carbon to the atmosphere, begetting further warming in a positive feedback loop. Polar ice core data and young radiocarbon ages of dissolved methane in thermokarst lakes have challenged the importance of
L. S. Brosius, K. M. Walter Anthony, C. C. Treat, M. C. Jones, M. Dyonisius, G. Grosse   +5 more
doaj   +1 more source

Thermokarst sedimentology of the Tuktoyaktuk Coastlands, Northwest Territories.

, 1993
Thermokarst sedimentology is the study of the sedimentary processes and facies associated with thermokarst. Using facies analysis, oxygen isotopes and observations of processes in the Tuktoyaktuk Coastlands, this thesis (1) classifies frozen ground ...
Murton, Julian Baird.
core   +2 more sources

From permafrost soil to thermokarst lake sediment: A view from C:N:P stoichiometry

Frontiers in Environmental Science, 2022
Thermokarst lakes are formed as a result of thawing ice-rich permafrost, transforming vast permafrost soil into lake sediment and changing the biogeochemistry of carbon (C), nitrogen (N), and phosphorus (P).
Ze Ren, Ze Ren, Xia Li, Xia Li, Cheng Zhang, Cheng Zhang, Qing Wang, Qing Wang, Le Fang, Le Fang, Shengkui Cao, Jinlei Yu   +11 more
doaj   +1 more source

Automatic Mapping of Thermokarst Landforms from Remote Sensing Images Using Deep Learning: A Case Study in the Northeastern Tibetan Plateau

Remote Sensing, 2018
Thawing of ice-rich permafrost causes thermokarst landforms on the ground surface. Obtaining the distribution of thermokarst landforms is a prerequisite for understanding permafrost degradation and carbon exchange at local and regional scales.
Lingcao Huang, Lin Liu, Liming Jiang, Tingjun Zhang   +3 more
doaj   +1 more source

Machine Learning and Morphometric Analysis for Evaluating the Vulnerability of Tundra Landscapes to Thermokarst Hazards in the Lena Delta: A Case Study of Arga Island

GeoHazards
Analyses of thermokarst hazard risk are becoming increasingly crucial in the context of global warming. A significant aspect of thermokarst research is the mapping of landscapes based on their vulnerability to thermokarst processes.
Andrei Kartoziia
doaj   +1 more source

Hydrological characteristics of thermokarst lake and its environmental effects on Qinghai-Tibet Plateau

Shui kexue jinzhan, 2022
A comprehensive understanding of the hydrological processes of thermokarst lakes on a seasonal scale is key to evaluating their environmental effects.
Zeyong GAO, Fujun NIU, Yibo WANG, Wei WANG, Zhanju LIN, Jing LUO, Mingxia LYU   +6 more
doaj   +1 more source