Results 1 to 10 of about 23,576 (190)

East Siberian ice wedges recording dust transport variability during the Late Pleistocene [PDF]

Nature Communications
During the Late Pleistocene, a severely cold and dry climate strengthened dust production across the Northern Hemisphere. Despite many studies examining aridification and dust production, there is a lack of understanding about dust transportation during ...
Soyeon Kim, Hyunwoo Lee, Jeongmin Kim, Yuyoung Lee, Jeong-Heon Choi, Mi Jung Lee, Ui-Jin Kwon, Go Iwahana, Thomas Opel, Hanno Meyer, Sebastian Wetterich, Alexander Fedorov, Jinho Ahn   +12 more
doaj   +2 more sources

Ocean driven retreat of the Northeast Greenland Ice Stream following the Last Glacial Maximum [PDF]

Nature Communications
The Northeast Greenland Ice Stream (NEGIS), the largest ice stream draining the Greenland Ice Sheet (GrIS), is losing mass at an accelerating rate due to atmospheric and ocean-driven melting.
S. Louise Callard, Colm Ó Cofaigh, Jeremy M. Lloyd, James A. Smith, Catalina, A. Gebhardt, Torsten Kanzow, David H. Roberts   +6 more
doaj   +2 more sources

The shifting mosaic of ice-wedge degradation and stabilization in response to infrastructure and climate change, Prudhoe Bay Oilfield, Alaska, USA1

Arctic Science, 2022
We studied processes of ice-wedge degradation and stabilization at three sites adjacent to road infrastructure in the Prudhoe Bay Oilfield, Alaska, USA.
Mikhail Kanevskiy, Yuri Shur, D.A. (Skip) Walker, Torre Jorgenson, Martha K. Raynolds, Jana L. Peirce, Benjamin M. Jones, Marcel Buchhorn, Georgiy Matyshak, Helena Bergstedt, Amy L. Breen, Billy Connor, Ronald Daanen, Anna Liljedahl, Vladimir E. Romanovsky, Emily Watson-Cook   +15 more
doaj   +1 more source

Reconstruction of mean January air temperature of Holocene in the lower Kolyma River region

Лëд и снег, 2022
The object of study is ice wedges at 10 sites in the lower Kolyma River. The Holocene age of ice wedges is determined on the basis of radiocarbon dating of the enclosing sediments and location of ice wedges in alases, floodplains and lacustrine-paludal ...
N. A. Budantseva, Yu. K. Vasil’chuk
doaj   +1 more source

Microbial and Geochemical Evidence of Permafrost Formation at Mamontova Gora and Syrdakh, Central Yakutia

Frontiers in Earth Science, 2021
Biotracers marking the geologic history and permafrost evolution in Central Yakutia, including Yedoma Ice Complex (IC) deposits, were identified in a multiproxy analysis of water chemistry, isotopic signatures, and microbial datasets.
M. Yu. Cherbunina, E. S. Karaevskaya, Yu. K. Vasil’chuk, N. I. Tananaev, D. G. Shmelev, N. A. Budantseva, A. Y. Merkel, A. L. Rakitin, A. V. Mardanov, A. V. Brouchkov, S. A. Bulat, S. A. Bulat   +11 more
doaj   +1 more source

Heterogeneous ices in ice wedges structure on the Pur-Taz interfluve peatlands of the north of West Siberia

Лëд и снег, 2020
Structure of arctic peatlands with massive ice and structure-forming ice were studied in drained lake («khasyrey») of the Pur-Taz interfluves (the north of West Siberia). The period of accumulation of two-meter thickness of the peat was established to be
Ya. V. Tikhonravova, E. A. Slagoda, V. V. Rogov, V. I. Butakov, A. V. Lupachev, A. O. Kuznetsova, G. V. Simonova   +6 more
doaj   +1 more source

Yedoma Permafrost Genesis: Over 150 Years of Mystery and Controversy

Frontiers in Earth Science, 2022
Since the discovery of frozen megafauna carcasses in Northern Siberia and Alaska in the early 1800s, the Yedoma phenomenon has attracted many Arctic explorers and scientists.
Yuri Shur, Daniel Fortier, M. Torre Jorgenson, M. Torre Jorgenson, Mikhail Kanevskiy, Lutz Schirrmeister, Jens Strauss, Alexander Vasiliev, Melissa Ward Jones   +8 more
doaj   +1 more source

Past climate and continentality inferred from ice wedges at Batagay megaslump in the Northern Hemisphere's most continental region, Yana Highlands, interior Yakutia [PDF]

Climate of the Past, 2019
Ice wedges in the Yana Highlands of interior Yakutia – the most continental region of the Northern Hemisphere – were investigated to elucidate changes in winter climate and continentality that have taken place since the Middle Pleistocene.
T. Opel, T. Opel, J. B. Murton, S. Wetterich, H. Meyer, K. Ashastina, F. Günther, F. Günther, F. Günther, H. Grotheer, G. Mollenhauer, P. P. Danilov, V. Boeskorov, G. N. Savvinov, L. Schirrmeister   +14 more
doaj   +1 more source

Dissolved organic carbon (DOC) in Arctic ground ice [PDF]

The Cryosphere, 2015
Thermal permafrost degradation and coastal erosion in the Arctic remobilize substantial amounts of organic carbon (OC) and nutrients which have accumulated in late Pleistocene and Holocene unconsolidated deposits.
M. Fritz, T. Opel, G. Tanski, U. Herzschuh, H. Meyer, A. Eulenburg, H. Lantuit   +6 more
doaj   +1 more source

Stable isotope and gas properties of two climatically contrasting (Pleistocene and Holocene) ice wedges from Cape Mamontov Klyk, Laptev Sea, northern Siberia [PDF]

The Cryosphere, 2013
This paper presents and discusses the texture, fabric, water stable isotopes (δ¹⁸O, δD) and gas properties (total gas content, O₂, N₂, Ar, CO₂, and CH ...
T. Boereboom, D. Samyn, H. Meyer, J.-L. Tison   +3 more
doaj   +1 more source