Results 41 to 50 of about 1,002 (181)

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

The Age and Origin of Block Deposits in the Victorian Alps, Australia

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 391-415, July/September 2026.
ABSTRACT Large periglacial block deposits are found in the mountains of southeastern Australia. Despite their widespread distribution, their mode of formation and age are poorly understood. These landforms hold considerable potential to shed light on the nature of cooling during glacial periods. In this paper we present a new study of block deposits in
Timothy T. Barrows, Michelle S. Worland, Julian Murton, Stephanie C. Mills, L. Keith Fifield   +4 more
wiley   +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

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

Capturing the Multi‐Decadal Evolution of Glacier–Permafrost Interactions in a High‐Alpine Environment (Ritord, Western Swiss Alps)

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 473-497, July/September 2026.
ABSTRACT This study investigates the multi‐decadal evolution of a glacier forefield under permafrost conditions in the Combins Massif (western Swiss Alps). A multi‐method approach based on historical and recent datasets is used to analyze its landform components.
Julie Wee, Hanne Hendrickx, Sebastián Vivero   +2 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

Simulating Arctic Greening: Microbial Responses in Thawing Yedoma Permafrost

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 551-565, July/September 2026.
ABSTRACT Arctic permafrost soils and sediments store vast amounts of organic carbon. With global warming intensifying, these soils are increasingly exposed to microbial decomposition. Further, Arctic warming and longer growing seasons drive regional greening, potentially accelerating the degradation of the previously frozen organic matter through ...
André Faust, Christoph Rosinger, Jan Olaf Melchert, Janet Rethemeyer   +3 more
wiley   +1 more source

NATURAL FACTORS OF SMALL THERMOKARST LAKES DYNAMICS INSIDE THE BOVANENKOVO GAS FIELD

Известия высших учебных заведений: Нефть и газ, 2015
This paper is dedicated to studying the causes of small thermokarst lakes number change in the territory of the Bovanenkovo gas field (Western Yamal) happened for the last 30 years.
G. S. Sannikov
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

Elevation‐Dependent Permafrost Thaw on the Tibetan Plateau Delays Seasonal Discharge and Poses a Risk of Reduction in Downstream Water Availability

Earth's Future, Volume 14, Issue 7, July 2026.
Abstract Global warming and permafrost thaw have significantly altered landscapes and hydrological conditions in permafrost regions. While site‐specific process studies have described hydrological changes during thawing, basin‐scale impact assessments and streamflow modeling remain challenging due to landscape heterogeneity and complex interactions ...
Chengwei Wan, John J. Gibson, Peng Yi, Xicai Pan, Chenghao Chen, Grzegorz Skrzypek   +5 more
wiley   +1 more source