Results 61 to 70 of about 99,621 (296)

Onshore Thermokarst Primes Subsea Permafrost Degradation

Geophysical Research Letters, 2021
The response of permafrost to marine submergence can vary between ice‐rich late Pleistocene deposits and the thermokarst basins that thawed out during the Holocene. We hypothesize that inundated Alases offshore thaw faster than submerged Yedoma.
Michael Angelopoulos, Pier P. Overduin, Maren Jenrich, Ingmar Nitze, Frank Günther, Jens Strauss, Sebastian Westermann, Lutz Schirrmeister, Alexander Kholodov, Michael Krautblatter, Mikhail N. Grigoriev, Guido Grosse   +11 more
doaj   +1 more source

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

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

Enhanced Ultramicropore of Biomass‐Derived Porous Carbon for Efficient and Low‐Energy CO2 Capture: Integration of Adsorption and Solar Desorption

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
By increasing the ultramicropore volume of biomass‐derived porous carbon through mechanical compression and utilizing its photothermal properties, this study achieves high CO2 adsorption capacity and solar‐driven regeneration with low energy consumption, providing a novel strategy for high‐efficiency carbon capture technology.
Pengcheng Guo, Ruiqi Xue, Qiao Zou, Xiancheng Ma, Changqing Su, Zheng Zeng, Liqing Li   +6 more
wiley   +1 more source

Different Amounts of Added Litter Do Not Affect Long‐Term Carbon Mineralization and Stabilization in Topsoils and Subsoils

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Over half of global soil organic carbon (SOC) stocks are stored in subsoil. A larger fraction of carbon (C) input may be retained and stabilized in subsoil as compared to topsoil. This retained fraction determines C sequestration efficiency, which may also depend on the amount of C input.
Neha Begill, Christopher Poeplau, Henning Meesenburg, Corinna Rebmann, Axel Don   +4 more
wiley   +1 more source

Evaluation of the Algorithms and Parameterizations for Ground Thawing and Freezing Simulation in Permafrost Regions [PDF]

, 2008
Ground thawing and freezing depths (GTFDs) strongly influence the hydrology and energy balances of permafrost regions. Current methods to simulate GTFD differ in algorithm type, soil parameterization, representation of latent heat, and unfrozen water ...
Abbey, Alexeev, Alexiades, Andersland, Anderson, Anisimov, Becker, Boike, Burn, Carey, Carey, Carey, Carey, Carlson, Cary, Cherkauer, Coll, Dai, de Vries, Delisle, Farouki, Foley, Fox, Fuchs, Goodrich, Goodrich, Goodrich, Gu, Hayashi, Hinkel, Hinkel, Hinzman, Johansen, Jumikis, Kade, Kane, Kersten, Klene, Koopmans, Koren, Lachenbruch, Lawrence, Li, Ling, Lunardini, Luo, McCauley, McNamara, Metcalfe, Nakano, Nelson, Nelson, Nicolsky, Niu, Osterkamp, Osterkamp, Outcalt, Overduin, Pitman, Quinton, Quinton, Riseborough, Romanovsky, Romanovsky, Romanovsky, Sean K. Carey, Shoop, Slater, Smerdon, Smirnova, Stefan, Stevens, Sushama, Sushama, Tarnawski, Tarnawski, Torrance, Van Wijk, Verseghy, William L. Quinton, Williams, Woo, Woo, Woo, Yalamanchili, Yi, Yinsuo Zhang, Zhang, Zhang, Zhang, Zhang, Zhao   +91 more
core   +2 more sources

Making vertebrate fossil radiocarbon dates more useful for global scientific research

Journal of Quaternary Science, EarlyView.
ABSTRACT Radiocarbon dating of bones is essential for reconstructing timelines of species' occurrences, domestication, extinction, migrations, and interactions with Quaternary environments. Many studies compile these chronologies at continental to global scales by aggregating radiocarbon dates from various sources, often balancing data quantity and ...
Salvador Herrando‐Pérez, Thomas W. Stafford Jr.   +1 more
wiley   +1 more source

Water Balance of a Small Lake in a Permafrost Region [PDF]

, 1973
The work upon which this report is based was supported in part by funds (Project A-031-ALAS) provided by the United States Department of the Interior, Office of Water Resources Research, as authorized under the Water Resources Act of 1964, as ...
Carlson, Robert F., Hartman, Charles W.
core  

Climate and catchment influence the postglacial succession of three lakes in south‐central Baffin Island (Nunavut), Canada

Journal of Quaternary Science, EarlyView.
ABSTRACT Understanding postglacial ontogeny in Arctic lakes helps contextualize modern‐day climatic change. We used sediment cores to characterize ecological succession in three south‐central Baffin Island lakes from deglaciation (c. 7–8k cal a BP) to present.
Isaac Armstrong, Andrew Scott Medeiros, Jennifer Eamer, Claudia Zimmermann, Biljana Narancic, Reinhard Pienitz   +5 more
wiley   +1 more source