Results 51 to 60 of about 7,581 (228)

Thermokarst Landscape Development Detected by Multiple-Geospatial Data in Churapcha, Eastern Siberia

Frontiers in Earth Science, 2021
Thermokarst is a typical process that indicates widespread permafrost degradation in yedoma landscapes. The Lena-Aldan interfluvial area in Central Yakutia in eastern Siberia is now facing extensive landscape changes with surface subsidence due to ...
Yoshihiro Iijima, Takahiro Abe, Hitoshi Saito, Mathias Ulrich, Alexander N. Fedorov, Alexander N. Fedorov, Nikolay I. Basharin, Alexey N. Gorokhov, Alexey N. Gorokhov, Victor S. Makarov, Victor S. Makarov, Victor S. Makarov   +11 more
doaj   +1 more source

Permafrost Mass Wasting in Ice‐Rich Landscapes: Recent Advances (2013 to 2024) on Mechanisms, Dynamics and Impacts

Permafrost and Periglacial Processes, Volume 37, Issue 2, Page 284-304, April/June 2026.
ABSTRACT Across circumpolar permafrost regions, climate change is destabilizing ice‐rich hillslopes, increasing the frequency and magnitude of thaw‐driven mass wasting. This paper reviews recent studies (2013–2024) on thaw‐driven mass wasting, focusing on the processes, morphology and trajectories of geomorphic change and their implications for ...
J. M. Young, L. Farquharson, J. Luo, N. Nesterova, J. van der Sluijs, S. V. Kokelj   +5 more
wiley   +1 more source

Thermokarst hazards susceptibility mapping on the Qinghai-Tibet plateau based on a collaborative IV-machine learning architecture

Geocarto International
Accelerating climate change intensifies permafrost degradation and thermokarst hazards on the Qinghai-Tibet Plateau (QTP), threatening ecosystems and infrastructure.
Tiantian Li, Wenhui Liu, Qiong Li, Hairui Liu, Sha Yang, Wei Li, Qing Li, Bingnan Luo, Jianqiang Zhang, Renjie He   +9 more
doaj   +1 more source

Microbial Community Structure and Methane Cycling Potential along a Thermokarst Pond-Peatland Continuum

Microorganisms, 2019
The thawing of ice-rich permafrost soils in northern peatlands leads to the formation of thermokarst ponds, surrounded by organic-rich soils. These aquatic ecosystems are sites of intense microbial activity, and CO2 and CH4 emissions.
Adrien Vigneron, Perrine Cruaud, Najat Bhiry, Connie Lovejoy, Warwick F. Vincent   +4 more
doaj   +1 more source

Cryostratigraphy of Rhythmic Segregated Ice in Colluvium and Implications for Permafrost Slope Stability

Permafrost and Periglacial Processes, Volume 37, Issue 2, Page 227-239, April/June 2026.
ABSTRACT The amount and stratigraphic setting of ground ice in permafrost slopes is a key control on the style and magnitude of permafrost mass wasting. Understanding the spatial and stratigraphic variations in ground ice distribution on permafrost slopes is therefore a fundamental property in assessing the stability of permafrost hillslopes.
Joseph M. Young, Alejandro Alvarez, Duane Froese   +2 more
wiley   +1 more source

Deep learning-based detection for thermokarst topography using the chopped picture method

Progress in Earth and Planetary Science
The polar region is sensitive to climate change, with concerns about the effects on ecosystems and human society. In particular, the thawing of permafrost associated with rising temperatures accelerates the microbial decomposition of organic carbon in ...
Kosuke Takaya, Noriko Kurata, Takeshi Ise, Yoshihiro Iijima   +3 more
doaj   +1 more source

Estimation of Excess Ice and Thaw Settlement in Frozen Soil Using Industrial Computed Tomography

Permafrost and Periglacial Processes, Volume 37, Issue 2, Page 254-266, April/June 2026.
ABSTRACT Permafrost thaw can induce terrain instabilities and hazards as a result of the loss of excess ice from host sediments. The loss of excess ice threatens the integrity of infrastructure and drives ecosystem changes across northern landscapes. This study tests a nondestructive approach to estimate excess ice and potential thaw settlement using ...
Jordan Harvey, Mahya Roustaei, Joel Pumple, Evan Francis, Duane Froese   +4 more
wiley   +1 more source

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

The 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, W. Wang, W. Wang, W. Wang, F. Niu, Z. Gao, W. Huang, H. Cao   +7 more
doaj   +1 more source

Surface displacement revealed by L-band InSAR analysis in the Mayya area, Central Yakutia, underlain by continuous permafrost

Earth, Planets and Space, 2020
Recent increases in global temperature have stimulated permafrost degradation associated with landform deformation caused by the melting of excess ground ice (thermokarst).
Takahiro Abe, Go Iwahana, Petr V. Efremov, Alexey R. Desyatkin, Takumi Kawamura, Alexander Fedorov, Yuri Zhegusov, Kazuki Yanagiya, Takeo Tadono   +8 more
doaj   +1 more source

Subsurface Investigations of Cryo‐Hydrogeological Features in a High Arctic Catchment Under Transition

Permafrost and Periglacial Processes, Volume 37, Issue 2, Page 267-283, April/June 2026.
ABSTRACT In this study, the internal structure and seasonal variations of cryo‐hydrogeological features were investigated in the Fuglebekken catchment, located near the Polish Polar Station Hornsund in Svalbard. Over a few years, rising air temperatures and intensified water circulation have significantly altered the distribution, extent, and state of ...
Tomasz Wawrzyniak, Szymon Oryński, Artur Marciniak, Marzena Osuch   +3 more
wiley   +1 more source