Results 81 to 90 of about 25,716 (256)

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

3-D numerical modeling of methane hydrate deposits [PDF]

, 2011
Within the German gas hydrate initiative SUGAR, we have developed a new tool for predicting the formation of sub-seafloor gas hydrate deposits. For this purpose, a new 2D/3D module simulating the biogenic generation of methane from organic material and ...
Fuchs, T., Haeckel, Matthias, Hensen, Christian, Pinero, Elena, Rottke, W., Wallmann, Klaus   +5 more
core  

Effects of warming on plant uptake of post‐fire nitrogen in an arctic heath tundra

New Phytologist, Volume 250, Issue 3, Page 1510-1521, May 2026.
Summary Postfire nitrogen (N) becomes increasingly important with the rising frequency of fires in arctic tundra, and climate warming is expected to accelerate plant recovery following fire. However, how plants differ in utilizing this postfire N and how their postfire N uptake responds to warming remains unknown.
Wenyi Xu, Per Lennart Ambus
wiley   +1 more source

Issues Related to Incorporating Northern Peatlands into Global Climate Models [PDF]

, 2009
Northern peatlands cover ~3–4 million km2 (~10% of the land north of 45°N) and contain ~200–400 Pg carbon (~10–20% of total global soil carbon), almost entirely as peat (organic soil).
Frolking, Steve, Lawrence, David, Roulet, Nigel T   +2 more
core   +1 more source

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

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, Volume 28, Issue 8, 22 April 2026.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Lake changes and their driving factors in circum-arctic permafrost regions from 1990 to 2022

Ecological Indicators
The rapid increase in temperatures and escalating human activities have led to a reduction or even disappearance of the thickness of the permafrost layer around the Arctic.
Wangping Li, Kaixuan Zhang, Xiaodong Wu, Xiaoqiang Cheng, Xiaoxian Wang, Zhaoye Zhou, Junming Hao, Xiuxia Zhang   +7 more
doaj   +1 more source

Summer CO2 evasion from streams and rivers in the Kolyma River basin, north-east Siberia [PDF]

, 2013
Inland water systems are generally supersaturated in carbon dioxide (CO2) and are increasingly recognized as playing an important role in the global carbon cycle.
Alin S.R, Aufdenkampe A.K, Battin T.J, Battin T.J, Benstead J.P, Bishop K, Blaize A. Denfeld, Butman D, Cole J.J, Cole J.J, Davidson E.A, Frey K.E, Frey K.E, Holmes R.M, Holmes R.M, Hope D, Hope D, Humborg C, Jones J.B, Karen E. Frey, Kelly C.A, Kling G.W, Koprivnjak J-F, Laudon H, Mann P.J, Melack J, Millero F.J, Millero F.J, Paul J. Mann, Rasera M.F.F.L, Raymond P.A, Richey J.E, Robert M. Holmes, Semiletov I.P, Smith L.C, Stumm W, Tank S.E, Teodoru C.R, Thurman E.M, Vachon D, Vannote R.L, Vonk J.E, Wallin M, Wallin M, Weiss R.F, Welp L.R, Wickland K.P, William V. Sobczak, Zhang T, Zimov S.A, Öquist M   +50 more
core   +2 more sources

Satellite‐Based Detection of Methane Emissions From Permafrost Peatland Warming

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Column‐averaged methane (XCH4) observations spanning 2018–2023 by the Tropospheric Monitoring Instrument (TROPOMI) on the Sentinel‐5 Precursor satellite are assessed for evidence of methane (CH4) emissions from permafrost regions. Bi‐monthly TROPOMI XCH4 anomaly maps and soil temperature (Tsoil) anomaly maps from reanalysis data are generated ...
Ray Nassar, Qindii Shafi, Joseph Mendonca, Sabour Baray, Peter Morse, Oliver Schneising, Michael Buchwitz, Ama Gamage   +7 more
wiley   +1 more source

Environmental Impacts of permafrost degradation

, 2019
Permafrost underlies approximately 50% of the Canadian landmass and is found in offshore areas beneath the Arctic shelf. Permafrost is warming at depth through taliks, along faults and methane leakage maybe enhanced from historical exploration wells and is also degrading in some areas as the surface active layer is thickening.
openaire   +1 more source