Results 21 to 30 of about 34,348 (282)
Nature Communications, 2023 Thousands of industrial sites were found to be correlated with contaminated sites in the Arctic. Between 13,000 and 20,000 contaminated sites are likely to exist in the permafrost region, 26% of which will be affected by permafrost thaw before 2100.
Moritz Langer +9 more
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Heavy and Light Mineral Association of Late Quaternary Permafrost Deposits in Northeastern Siberia
Frontiers in Earth Science, 2022 We studied heavy and light mineral associations from two grain-size fractions (63–125 μm, 125–250 µm) from 18 permafrost sites in the northern Siberian Arctic in order to differentiate local versus regional source areas of permafrost aggradation on the ...
L. Schirrmeister +7 more
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Ecological and geochemical characteristics of the snow cover in the Yakutsk city (Central Siberia)
Лëд и снег, 2021 For the first time, the geochemistry of snow cover on the territory of the city of Yakutsk, the largest city located in the permafrost zone, is considered on the basis of recent methods of analysis. To study the chemical composition of the snow cover and
V. N. Makarov, N. V. Torgovkin
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Proceedings of the National Academy of Sciences, 2013 Last October, when Susan Hubbard and her team pulled sleds full of sensitive sensors across the snow near the northernmost point in Alaska, temperatures hovered in the single digits and low teens (e.g., 8–15 °F). Foremost in the researchers’ minds, aside from collecting data on the frozen ground beneath their feet, were two things: keep an eye out for ...
openaire +2 more sources
Measurement of Excess Pore-Water Pressure in Frozen Soil at Subfreezing Temperatures Close to 0°C
Geofluids, 2022 Response of pore-water pressure has crucial effect on the engineering geological performance of permafrost ground. However, there is a dearth of literature on the measurement of pore-water pressure in frozen soils due to challenges with regard to ...
Hu Zhang +3 more
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Biodegradability of dissolved organic carbon in permafrost soils and aquatic systems: A meta-analysis [PDF]
, 2015 As Arctic regions warm and frozen soils thaw, the large organic carbon pool stored in permafrost becomes increasingly vulnerable to decomposition or transport.
Tank, Suzanne +39 more
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Canadian Geotechnical Journal, 1971 Permafrost, or perennially frozen ground, occurs widely throughout the northern half of Canada. Experience has shown that special design and construction techniques are required for building on permafrost in order to avoid disturbing the delicate thermal balance that preserves the frozen ground.
Crawford, C. B., Johnston, G. H.
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Utilization of ancient permafrost carbon in headwaters of Arctic fluvial networks [PDF]
, 2015 Northern high-latitude rivers are major conduits of carbon from land to coastal seas and the Arctic Ocean. Arctic warming is promoting terrestrial permafrost thaw and shifting hydrologic flowpaths, leading to fluvial mobilization of ancient carbon stores.
Zimov, Nikita +26 more
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Dissolved organic carbon loss from Yedoma permafrost amplified by ice wedge thaw [PDF]
, 2013 Pleistocene Yedoma permafrost contains nearly a third of all organic matter (OM) stored in circum-arctic permafrost and is characterized by the presence of massive ice wedges.
Zimov, Nikita +36 more
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Hydrology, 2022 Major ions, stable isotopes, and trace elements, including rare earth elements (REEs), are used as natural tracers in the qualitative assessment of potential water sources in lakes and rivers of the upper Yana River basin, between Verkhoyansk and Chersky
Nikita Tananaev
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