Results 71 to 80 of about 4,605 (227)
Remote Sensing, 2014 The formation of oriented thermokarst lakes on the Arctic Coastal Plain of northern Alaska has been the subject of debate for more than half a century.
Shengan Zhan +4 more
doaj +1 more source
Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.Abstract Rapid permafrost thaw in peatlands transforms the subarctic landscape into a mosaic of ponds and peat soil, varying in moisture, carbon and nutrients, and time since thaw. As subarctic permafrost degrades, ponds emerge and mature and can gradually infill with Sphagnum peat.
Melanie S. Burnett +6 more
wiley +1 more source
High methane emissions from thermokarst lakes in subarctic peatlands [PDF]
Limnology and Oceanography, 2016 AbstractThe thawing and subsidence of frozen peat mounds (palsas) in permafrost landscapes results in the formation of organic‐rich thermokarst lakes. We examined the effects of palsa degradation on CH4 and CO2 emissions by comparing thermokarst lakes at two peatland locations in subarctic Québec, Canada: in the northern discontinuous permafrost region,
Matveev, Alex +4 more
openaire +2 more sources
Numerical modeling of two-dimensional temperature dynamics across ice-wedge polygons [PDF]
, 2017 Thesis (M.S.) University of Alaska Fairbanks, 2017The ice wedges on the North Slope of Alaska have been forming for many millennia, when the ground cracked and the cracks were filled with snowmelt water.
Garayshin, Viacheslav Valer'evich +1 more
core
Sediment characteristics of a thermokarst lagoon in the northeastern Siberian Arctic (Ivashkina Lagoon, Bykovsky Peninsula) [PDF]
, 2018 Lagoon development in ice-rich permafrost environments such as the Alaskan Beaufort Sea coastline and the Yedoma coastlines of northern Siberia represents a key mechanism of marine inundation of permafrost along the Arctic coastal plains.
Grigoriev, Mikhail N. +7 more
core +1 more source
AtmosphereClimate 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 +5 more
doaj +1 more source
Peatlands Have the Potential to Emerge as Significant Contributors to Future Climate Warming
Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.Abstract Peatlands store a substantial amount of carbon in the terrestrial ecosystem. They are both long‐term sinks of organic carbon and a major natural source of atmospheric methane. The accumulation of carbon is a result of net primary production surpassing decomposition rates over millennia, whereas methane production is intricately linked to the ...
Nitin Chaudhary +10 more
wiley +1 more source
Boreas, Volume 55, Issue 2, Page 422-442, April 2026.This study examines the distribution and morphology of lakes under the Laurentide Ice Sheet (LIS) to investigate relationships with ice flow velocity, bedrock and basal thermal regime. Palaeo‐ice streams and lobes were important components of the LIS, and properties of lakes in those regions are quantified at high resolution.
Sarah M. Principato, Carissa M. Mobley
wiley +1 more source
Remote Sensing Risk Assessment of Valdez Glacier Lake [PDF]
, 2012 Can remote sensing techniques be used to determine the probability of an outburst from the Valdez Glacier Lake, and to detect downstream areas affected by a possible glacier lake outburst ...
Soederstroem, Erik
core
Journal of Phycology, Volume 62, Issue 2, Page 261-292, April 2026.Abstract Glacier‐fed streams (GFSs) make ideal systems for studying climate‐related changes. Some of the best‐studied GFSs are found in the McMurdo Dry Valleys (MDVs) of Antarctica, one of the Earth's coldest and driest deserts. Despite their harsh and isolated nature, MDV GFSs represent an oasis of life in a landscape visually devoid of it, with ...
Tyler J. Kohler +5 more
wiley +1 more source