Results 31 to 40 of about 113,623 (164)

Viscous creep of ice-rich permafrost debris in a recently uncovered proglacial area in the Tianshan Mountains, China

Advances in Climate Change Research, 2022
Since the Little Ice Age and as a consequence of climate warming, many recently deglaciated forefields have become and will continue to evolve into large ice-debris complexes exposed to periglacial processes and environment.
Yu Zhou, Guo-Yu Li, Hui-Jun Jin, Sergey S. Marchenko, Wei Ma, Qing-Song Du, Jin-Ming Li, Dun Chen   +7 more
doaj   +1 more source

Projecting circum-Arctic excess-ground-ice melt with a sub-grid representation in the Community Land Model [PDF]

The Cryosphere, 2020
To address the long-standing underrepresentation of the influences of highly variable ground ice content on the trajectory of permafrost conditions simulated in Earth system models under a warming climate, we implement a sub-grid representation of excess
L. Cai, L. Cai, H. Lee, K. S. Aas, S. Westermann   +4 more
doaj   +1 more source

Formation of Ground Ice [PDF]

Nature, 1870
I THINK the enclosed letter contains as good a description of the formation of ground ice as I have hitherto seen; I therefore send it to you, thinking it of sufficient interest to appear in NATURE.
openaire   +2 more sources

Characterizing Dissolved Organic Matter and Other Water-Soluble Compounds in Ground Ice of the Russian Arctic: A Focus on Ground Ice Classification within the Carbon Cycle Context

Geosciences
Climate-induced changes contribute to the thawing of ice-rich permafrost in the Arctic, which leads to the release of large amounts of organic carbon into the atmosphere in the form of greenhouse gases, mainly carbon dioxide and methane.
Petr Semenov, Anfisa Pismeniuk, Anna Kil, Elizaveta Shatrova, Natalia Belova, Petr Gromov, Sergei Malyshev, Wei He, Anastasiia Lodochnikova, Ilya Tarasevich, Irina Streletskaya, Marina Leibman   +11 more
doaj   +1 more source

Changes in Ground Temperature and Dynamics in Mountain Permafrost in the Swiss Alps

Frontiers in Earth Science, 2021
Rising air temperatures and increasingly intense precipitation are being observed in the Swiss Alps. These changes strongly affect the evolution of the temperature regime and the dynamics of mountain permafrost. Changes occur at different rates depending
Anna Haberkorn, Robert Kenner, Jeannette Noetzli, Marcia Phillips   +3 more
doaj   +1 more source

METHANE IN GROUND ICE AND FROZEN SEDIMENTS IN THE COASTAL ZONE AND ON THE SHELF OF KARA SEA

Лëд и снег, 2018
Summary Degradation of permafrost on the continental shelf and shores of the Arctic seas may be a main cause of the methane emission to the atmosphere from marine sediments.
I. D. Streletskaya, A. A. Vasiliev, G. E. Oblogov, P. B. Semenov, B. G. Vanshtein, E. M. Rivkina   +5 more
doaj   +1 more source

Ground-ice origin and age on Herschel Island (Qikiqtaruk), Yukon, Canada

Quaternary Science Advances, 2023
Glacial legacies preserved in permafrost such as buried glacial ice of the last ice age are of increasing concern in the Western Canadian Arctic. Permafrost collapse due to melting ground ice largely follows the margins of the maximum Laurentide Ice ...
Sebastian Wetterich, Alexander I. Kizyakov, Thomas Opel, Hendrik Grotheer, Gesine Mollenhauer, Michael Fritz   +5 more
doaj   +1 more source

Methane and Dissolved Organic Matter in the Ground Ice Samples from Central Yamal: Implications to Biogeochemical Cycling and Greenhouse Gas Emission

Geosciences, 2020
Permafrost thawing leads to mobilization of the vast carbon pool into modern biogeochemical cycling through the enhanced release of dissolved organic matter (DOM) and production of greenhouse gases (CO2 and CH4).
Petr B. Semenov, Anfisa A. Pismeniuk, Sergei A. Malyshev, Marina O. Leibman, Irina D. Streletskaya, Elizaveta V. Shatrova, Alexander I. Kizyakov, Boris G. Vanshtein   +7 more
doaj   +1 more source

Water Migration and Segregated Ice Formation in Frozen Ground: Current Advances and Future Perspectives

Frontiers in Earth Science, 2022
A characteristic of frozen ground is a tendency to form banded sequences of particle-free ice lenses separated by layers of ice-infiltrated soil, which produce frost heave.
Ziteng Fu, Ziteng Fu, Ziteng Fu, Qingbai Wu, Qingbai Wu, Qingbai Wu, Wenxin Zhang, Wenxin Zhang, Hailong He, Luyang Wang, Luyang Wang, Luyang Wang   +11 more
doaj   +1 more source

Permafrost Terrain Dynamics and Infrastructure Impacts Revealed by UAV Photogrammetry and Thermal Imaging

Remote Sensing, 2018
Unmanned Aerial Vehicle (UAV) systems, sensors, and photogrammetric processing techniques have enabled timely and highly detailed three-dimensional surface reconstructions at a scale that bridges the gap between conventional remote-sensing and field ...
Jurjen van der Sluijs, Steven V. Kokelj, Robert H. Fraser, Jon Tunnicliffe, Denis Lacelle   +4 more
doaj   +1 more source