Results 81 to 90 of about 4,605 (227)

Carbon and nitrogen pools in thermokarst-affected permafrost landscapes in Arctic Siberia [PDF]

, 2017
Ice rich Yedoma-dominated landscapes store considerable amounts of organic carbon (C) and nitrogen (N) and are vulnerable to degradation under climate warming.
Fuchs, Matthias, Grigoriev, Mikhail N., Grosse, Guido, Günther, Frank, Hugelius, Gustaf, Maximov, Georgy M., Strauss, Jens   +6 more
core   +1 more source

Frozen Soil Hydrological Processes and Their Effects: A Review and Synthesis

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Frozen soils, including seasonally frozen ground and permafrost, are rapidly changing under a warming climate, with cascading effects on water, energy, and carbon cycles. We synthesize recent advances in the physics, observation, and modeling of frozen‐soil hydrology, emphasizing freeze–thaw dynamics, infiltration regimes and preferential flow,
Ying Zhao, Ce Zheng, Alexander Gelfan, Kunio Watanabe, Haojie Liu, Stephanie Wright, Xiaolong Wu, William Quinton, Yi Wang, Shuhua Yi, Yongyong Zhang, Yujie Shi, Wentao Jiao   +12 more
wiley   +1 more source

The chronostratigraphy of Late Pleistocene glacial and periglacial aeolian activity in the Tuktoyaktuk Coastlands, NWT, Canada [PDF]

, 2006
Aeolian periglacial sand deposits are common in the Tuktoyaktuk Coastlands of Western Arctic Canada. Regionally extensive and thick aeolian sand-sheet deposits have been observed in two major stratigraphic settings: within a sand unit characterized by ...
Ager, Anderson, Andrews, Bateman, Bateman, Berger, Berger, Berger, Burn, Bégin, Carter, Dallimore, Dijkmans, Dinter, Duk-Rodkin, Duk-Rodkin, Dyke, Dyke, Edwards, Fairbanks, Fryberger, Grootes, Hamilton, Hopkins, Julian B. Murton, Kocurek, Kocurek, Koster, Lambeck, Lea, Lea, Lemmen, MacDonald, Mackay, Mackay, Mark D. Bateman, Martinson, McKee, Mejdal, Michaud, Murray, Murton, Murton, Murton, Murton, Murton, Nelson, Prescott, Riezebos, Ritchie, Ritchie, Ruz, Ruz, Saarnisto, Schwan, Stuiver, Taylor, Vincent, Willemse   +58 more
core   +2 more sources

Evaporation From Soil and Thermokarst Lakes Contribute More to Local Precipitation Than Plant Transpiration in Permafrost Regions of the Central Qinghai—Tibet Plateau

Water Resources Research
Permafrost degradation on the Qinghai—Tibet Plateau (QTP) directly affects evapotranspiration and moisture recycling processes by changing the underlying land surface conditions.
Xiaofan Zhu, Shengjie Wang, Tonghua Wu, Xiaodong Wu, Jie Chen, Peiqing Lou, Xin Ma, Yune La, Yu Zhang, Haixiang Jie, Amin Wen, Dong Wang, Peng Gong   +12 more
doaj   +1 more source

n-Alkane Characteristics of Thawed Permafrost Deposits Below a Thermokarst Lake on Bykovsky Peninsula, Northeastern Siberia

Frontiers in Environmental Science, 2020
Rapid permafrost thaw by thermokarst mobilizes previously frozen organic matter (OM) down to tens of meters deep within decades to centuries, leading to microbial degradation and greenhouse gas release. Late Pleistocene ice-rich Yedoma deposits that thaw
Loeka L. Jongejans, Loeka L. Jongejans, Kai Mangelsdorf, Lutz Schirrmeister, Mikhail N. Grigoriev, Georgii M. Maksimov, Boris K. Biskaborn, Guido Grosse, Guido Grosse, Jens Strauss   +9 more
doaj   +1 more source

Measurement of Gas Fraction and Gas Permeability of Thawing Permafrost Caused by Climate Change

Earth's Future, Volume 14, Issue 3, March 2026.
Abstract Thawing of permafrost due to climate change is known to release gases such as the climate drivers carbon dioxide and methane, as well as the carcinogen radon. Gas permeability is extremely low in fully frozen permafrost and can be considered both to function as a seal preventing subsurface gases being released, and to prevent the creation of ...
P. W. J. Glover, L. Tliba, R. A. Clark, P. Lorinczi   +3 more
wiley   +1 more source

Metagenomic Analysis of Thawing Permafrost Highlights Links Between Carbon and Nitrogen Cycling Processes in Abrupt Thaw Simulation

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 3, March 2026.
Abstract Abrupt permafrost thaw events are projected to contribute up to 40% of permafrost carbon (C) release to the atmosphere. They involve sudden hydrological shifts within the soil column; however, the exact microbial functional pathway shifts induced by these events remain cryptic. To investigate how C and nutrient cycling processes differ in thaw
M. Laurent, M. R. Baysinger, A. Bartholomäus, T. Windirsch, J. Strauss, T. Sanders, S. Liebner, C. Treat   +7 more
wiley   +1 more source

Thermokarst lake waters across the permafrost zones of western Siberia [PDF]

The Cryosphere, 2014
Abstract. This work describes the hydrochemical composition of thermokarst lake and pond ecosystems, which are observed in various sizes with different degrees of permafrost influence and are located in the northern part of western Siberia within the continuous and discontinuous permafrost zones.
R. M. Manasypov, O. S. Pokrovsky, S. N. Kirpotin, L. S. Shirokova   +3 more
openaire   +4 more sources

Investigation of thermal regimes of lakes used for water supply and examination of drinking water system in Kotzebue, Alaska [PDF]

, 2012
Thesis (M.S.) University of Alaska Fairbanks, 2012Many villages in Arctic Alaska rely on lakes for water supply, such as the Alaskan City of Kotzebue, and these lakes may be sensitive to climate variability and change, particularly thermal regimes and ...
Bendlova, Tereza
core  

Survey of cryogenic processes, periglacial forms and permafrost conditions in South America [PDF]

, 2000
Este inventário fornece informações sobre o estado da arte e os avanços recentes da Geocriologia nos países da América do Sul onde ocorre permafrost ou congelamento sazonal dos solos e onde este campo de pesquisa tem interesse científico.
Trombotto, Dario Tomas
core   +1 more source