Results 81 to 90 of about 4,329 (214)

Distribution and changes of thermokarst lakes along the Qinghai-Tibet Railway from 1991 to 2022

Research in Cold and Arid Regions
Permafrost degradation on the Qinghai–Tibet Plateau has led to the rapid development of thermokarst lakes, but their distribution along the Qinghai-Tibet Railway (QTR) has not been fully studied. In this study, we established the Landsat, Sentinel-2A and
JunCheng Zhu, Jing Luo, HuiYan Zhang, JiYi Zhang   +3 more
doaj   +1 more source

Effects of Hillslope Thermokarst in Northern Alaska [PDF]

Eos, Transactions American Geophysical Union, 2009
Permafrost thawing is increasing in the Arctic and sub‐Arctic [Osterkamp and Romanovsky, 1996; Osterkamp, 2007] in response to climate warming [Hassol, 2004]. One consequence of thawing permafrost is the development of thermokarst (physical depression of ground surface) because of reduced support of overlying soil [Jorgenson et al., 2006].
Michael N. Gooseff, Andrew Balser, William B. Bowden, Jeremy B. Jones   +3 more
openaire   +1 more source

Rapid Increase in Geogenic CO2 Emissions from Antarctic Permafrost

Global Biogeochemical Cycles, Volume 40, Issue 10, October 2026.
Abstract Thawing permafrost can amplify climate change by releasing previously stored carbon, but observations of this feedback come mainly from the Arctic. Ice‐free Antarctic terrains are generally regarded as minor CO2 sources, although sub‐permafrost brines and deep carbon reservoirs may support localized geogenic degassing.
L. Ruggiero, A. Sciarra, F. Florindo, L. Davidson, J. Beagley, C. Berquist, G. Wilson   +6 more
wiley   +1 more source

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

Remote 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

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

Methane Uptake by Inland Waters: Fact or Fiction?

Global Biogeochemical Cycles, Volume 40, Issue 10, October 2026.
Abstract Inland waters are widely known as net emitters of methane (CH4) to the atmosphere, contributing ∼15% of global CH4 emissions. CH4 is produced by anaerobic methanogens in aquatic sediments, but net CH4 emissions at the water–air interface are modulated by CH4 oxidation by methanotrophs in the water column.
Mike Peacock, Jackie Webb
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

Characterizing Permafrost Distribution Along the Hudson Bay Railway Using Temperature‐Calibrated Electrical Resistivity Tomography

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 10, October 2026.
Abstract As the climate warms, understanding permafrost distribution along linear infrastructure is a key aspect of assessing, mitigating, and adapting to the risks associated with permafrost thaw. Electrical resistivity tomography (ERT) is becoming an increasingly common tool for evaluating permafrost distribution at the infrastructure scale.
T. Herring, K. Ozeritskiy, E. L’Hérault, J. L. Hayley, P. Roy‐Léveillée   +4 more
wiley   +1 more source

Palaeoenvironmental and climatic changes from the lateglacial of the Saalian to the Late Weichselian in central Poland: a multiproxy study from Józefów

Boreas, Volume 55, Issue 4, Page 1073-1101, October 2026.
Józefów site is a case study which provides a detailed record of environmental and climate changes and confirms the main traces of the landscape morphogenesis of the Late Pleistocene established in central‐eastern Europe. This study presents a multiproxy reconstruction of palaeoenvironment under variable climatic conditions from the retreat of the ...
Aleksandra Majecka, Jacek Forysiak, Ryszard Borówka, Andreas Börner, Łukasz Bujak, Leszek Marks, Radosław Mieszkowski, Piotr Moska, Daniel Okupny, Małgorzata Pisarska‐Jamroży, Renata Stachowicz‐Rybka, Krzysztof Stachowicz   +11 more
wiley   +1 more source

Water Table and Vegetation Shape Peatland CO2 and CH4 Fluxes With Water Table Modulating Temperature Sensitivity

Global Change Biology, Volume 32, Issue 10, October 2026.
Using 14,643 chamber observations from 285 peatland sites, we found that wetter conditions were associated with higher CH4 emissions but lower ecosystem respiration and combined CO2‐equivalent emissions. Apparent CH4 temperature sensitivity also increased with water‐table level, suggesting that fixed Q10 values may misrepresent warming responses ...
Heyu Chen, Jirateep Yotmaw, Liam Thompson, Dominik Bittner, Yongxing Ren, Yi Xu, Scott J. Davidson, Jingui Wei, Wen Yin, Grant Campbell, Shuai Xue, Chris D. Evans, Pete Smith, Astley Hastings, Mohamed Abdalla   +14 more
wiley   +1 more source