Results 61 to 70 of about 102,256 (313)

Monitoring Ground Surface Deformation of Ice-Wedge Polygon Areas in Saskylakh, NW Yakutia, Using Interferometric Synthetic Aperture Radar (InSAR) and Google Earth Engine (GEE)

Remote Sensing, 2023
As one of the best indicators of the periglacial environment, ice-wedge polygons (IWPs) are important for arctic landscapes, hydrology, engineering, and ecosystems.
Wenhui Wang, Huijun Jin, Ze Zhang, Mikhail N. Zhelezniak, Valentin V. Spektor, Raul-David Șerban, Anyuan Li, Vladimir Tumskoy, Xiaoying Jin, Suiqiao Yang, Shengrong Zhang, Xiaoying Li, Mihaela Șerban, Qingbai Wu, Yanan Wen   +14 more
doaj   +1 more source

Simulating Thermal Interaction of Gas Production Wells with Relict Gas Hydrate-Bearing Permafrost [PDF]

, 2022
Evgeny Chuvilin, G. S. Tipenko, Boris Bukhanov, В. А. Истомин, Dimitri Pissarenko   +4 more
openalex   +1 more source

Does Palsa Thaw in Northern Finland Contribute to Remobilisation of Metals Accumulated in Peat Into Surface Waters?

Land Degradation &Development, EarlyView.
ABSTRACT Permafrost is rapidly degrading in the sporadic zone, including palsa mires in Scandinavia. Peatlands in the area have likely accumulated heavy metals from atmospheric deposition of industrial contaminants in the wider region. As the palsa mire chemical composition is not well known, and in other permafrost regions the permafrost thaw may ...
Joanna Katarzyna Jóźwik, Krystyna Kozioł, Marcin Frankowski, Marta Jakubiak, Kamil Nowiński, Mariusz Jędrysek, Danuta Szumińska, Żaneta Polkowska   +7 more
wiley   +1 more source

FOUR YEARS OF UNMANNED AERIAL SYSTEM IMAGERY REVEALS VEGETATION CHANGE IN A SUB-ARCTIC MIRE DUE TO PERMAFROST THAW [PDF]

, 2018
Warming trends in sub-arctic regions have resulted in thawing of permafrost which in turn induces change in vegetation across peatlands both in areal extent and composition. Collapse of palsas (i.e.
DelGreco, Jessica
core   +1 more source

Permafrost - physical aspects and carbon cycling, databases and uncertainties [PDF]

, 2012
Permafrost is defined as ground that remains below 0°C for at least 2 consecutive years. About 24% of the northern hemisphere land area is underlain by permafrost.
Boike, Julia, Langer, Moritz, Lantuit, Hugues, McGuire, A. D., Muster, Sina, Ovderduin, P. P., Roth, K., Sachs, Torsten, Westermann, Sebastian   +8 more
core   +1 more source

Evaluation of simulated soil carbon dynamics in Arctic-Boreal ecosystems [PDF]

, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Huntzinger, D. N., Schaefer, K., Schwalm, C., Fisher, J.
Carey, Joanna C., Fisher, Joshua B., Hayes, Daniel, Huntzinger, Deborah N., Jain, Atul K., Kolus, Hannah, Mao, Jiafu, Michalak, Anna M., Poulter, Benjamin, Schaefer, Kevin, Schwalm, Christopher R., Shi, Xiaoying, Stofferahn, Eric, Tang, Jianwu, Tian, Hanqin, Wei, Yaxing   +15 more
core   +1 more source

Predator density outweighs experimental warming effects on short‐term carbon and nitrogen loss from arctic shrub litter

Oikos, EarlyView.
Rapid climate change in the Arctic is altering biological communities and their subsequent effects on ecosystem functioning. For example, warming‐induced shrub expansion accelerates biogeochemical cycles in part by increasing high‐quality litter inputs.
Nevo Sagi, Anna M. Cress, Jennie R. McLaren, Amanda M. Koltz   +3 more
wiley   +1 more source

Effects of Freezing on Soil Temperature, Freezing Front Propagation and Moisture Redistribution in Peat: Laboratory Investigations [PDF]

, 2012
There are not many studies that report water movement in freezing peat. Soil column studies under controlled laboratory settings can help isolate and understand the effects of different factors controlling freezing of the active layer in organic covered ...
Hayashi, Masaki, Nagare, Ranjeet M., Quinton, William L., Schincariol, Robert A.   +3 more
core   +1 more source

Longer thaw seasons increase nitrogen availability for leaching during fall in tundra soils [PDF]

, 2016
Climate change has resulted in warmer soil temperatures, earlier spring thaw and later fall freeze-up, resulting in warmer soil temperatures and thawing of permafrost in tundra regions.
Bowden, William B., Treat, Claire C., Varner, Ruth K., Wollheim, Wilfred M.   +3 more
core   +2 more sources

Die Arktis bei 2,7 Grad globaler Erwärmung: Schwindende Landschaften

Physik in unserer Zeit, EarlyView.
Eine dicke Eisschicht auf dem Ozean, hunderte Meter tief gefrorener Boden und ein über 3 000 m hoher Eisschild – diese einzigartige Landschaft wird es vermutlich so in Zukunft nicht mehr geben. Eine globale Erwärmung von 2,7 °C, auf die wir aktuell zusteuern, würde die Arktis bis zur Unkenntlichkeit verändern.
Céline Giesse
wiley   +1 more source