Results 71 to 80 of about 854,536 (203)

Contrasting Responses of Carbon Dioxide and Methane Fluxes Following Thermokarst Erosion Across Tundra‐Lake Interfaces in the Western Canadian Arctic

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 11, November 2026.
Abstract Erosion from ice‐rich permafrost thaw (“thermokarst”) alters tundra vegetation cover and soil moisture, and laterally transports organic material into lakes, altering net fluxes of carbon dioxide (FCO2), methane (FCH4), and nitrous oxide (FN2O).
Kathryn A. Bennett, Carolina Voigt, Léa Cornette, Jasmin Drouin‐Jacques, Camellia Gray, Roxane Maranger, Benjamin Schmidt, Suzanne E. Tank, Andy Vicente‐Luis, Christian von Sperber, Oliver Sonnentag   +10 more
wiley   +1 more source

Diminished Radiative Cooling With Northward Wildfire Advance in the East Siberian Boreal Region

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Intensification of the Siberian wildfire regime is characterized by large increases in burned area above the Arctic Circle. Wildfire in boreal forests typically reduces albedo in the decades following fire, resulting in a net cooling effect. Here we quantified changes in albedo and the accompanying radiative forcing associated with a northward
Michael M. Loranty, Elizabeth E. Webb, Anna C. Talucci, Heather D. Alexander   +3 more
wiley   +1 more source

High carbon emissions from thermokarst lakes of Western Siberia [PDF]

Nature Communications, 2019
Abstract The Western Siberia Lowland (WSL), the world’s largest permafrost peatland, is of importance for understanding the high-latitude carbon (C) cycle and its response to climate change. Warming temperatures increase permafrost thaw and production of greenhouse gases.
S. Serikova, O. S. Pokrovsky, H. Laudon, I. V. Krickov, A. G. Lim, R. M. Manasypov, J. Karlsson   +6 more
openaire   +5 more sources

Modeled Subsidence of Permafrost Terrain 2025–2050: North‐Central Alaska

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 692-712, October/December 2026.
ABSTRACT A large fraction of the Alaska terrain is underlain by regolith that contains excess ice (ice that in volume exceeds the natural pore space). Possible loss of excess ice would lead to ground subsidence, which in turn would disturb and destabilize the ground surface.
Jaakko Putkonen, Hayden Patterson, Robert Chance, Mary Soaper, Anai Caparó Bellido, Aymane Ahajjam, Andrew Wilcox, Sheridan Parker, Timothy Pasch   +8 more
wiley   +1 more source

Radiocarbon ages of sediment core PG2412 beneath thermokarst lake Goltsovoye Lake on the Bykovsky Pensinula, northeastern Siberia

, 2020
These datasets describe a 31.5 m long sediment core taken from beneath thermokarst lake Goltsovoye Lake (71.74515 N, 129.30217 E) on the Bykovsky Peninsula, northeastern Siberia. The thermokarst lake was 510 cm deep.
Strauss, Jens, Mangelsdorf, Kai, Jongejans, Loeka Laura   +2 more
core   +1 more source

Internal Structure, Kinematics, and Prehistory of Frozen Debris Lobe‐A (FDL‐A), Brooks Range, Alaska

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 645-667, October/December 2026.
ABSTRACT Frozen Debris Lobe‐A (FDL‐A)—one of hundreds of FDLs in the Brooks Range of northern Alaska—is a slow‐moving landslide in permafrost that has been the subject of research since 2008 due to its close proximity to the Dalton Highway. Here, we synthesize more than a decade's worth of climate and surface measurements of monitored FDLs, and the ...
Margaret M. Darrow, Esther L. Babcock, Ben A. Leshchinsky   +2 more
wiley   +1 more source

Susceptibility Modeling and Potential Risk Analysis of Thermokarst Hazard in Qinghai–Tibet Plateau Permafrost Landscapes Using a New Interpretable Ensemble Learning Method

Atmosphere
Climate change is causing permafrost in the Qinghai–Tibet Plateau to degrade, triggering thermokarst hazards and impacting the environment. Despite their ecological importance, the distribution and risks of thermokarst lakes are not well understood due ...
Yuting Yang, Jizhou Wang, Xi Mao, Wenjuan Lu, Rui Wang, Hao Zheng   +5 more
doaj   +1 more source

A synthesis of thermokarst lake water balance in high-latitude regions of North America from isotope tracers

Arctic Science, 2017
Numerous studies utilizing remote sensing imagery and other methods have documented that thermokarst lakes are undergoing varied hydrological transitions in response to recent climate changes, from surface area expansion to drainage and evaporative ...
Lauren A. MacDonald, Brent B. Wolfe, Kevin W. Turner, Lesleigh Anderson, Christopher D. Arp, S. Jean Birks, Frédéric Bouchard, Thomas W.D. Edwards, Nicole Farquharson, Roland I. Hall, Ian McDonald, Biljana Narancic, Chantal Ouimet, Reinhard Pienitz, Jana Tondu, Hilary White   +15 more
doaj   +1 more source

Depositional and Hydrological Relationships Between Buried Dead Ice and the Active Layer in the McMurdo Dry Valleys, Antarctica: A Study of Sediment Geochemistry and Cation Concentrations

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 725-752, October/December 2026.
ABSTRACT The McMurdo Dry Valleys, the largest ice‐free region in Antarctica, are home to a cold‐desert hydrologic system of glaciers, snowbanks, streams, and lakes. Freshwater is also stored as dead glacial ice, which is poorly constrained in terms of ion concentrations and interactions with both in situ and overlying sediments.
Matthew C. Witscheber, Kate M. Swanger
wiley   +1 more source

Cumulative greenhouse gas production in thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia

, 2021
This dataset describes two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core ...
Liebner, Susanne, Knoblauch, Christian, Strauss, Jens, Mangelsdorf, Kai, Jongejans, Loeka Laura   +4 more
core   +1 more source