Results 21 to 30 of about 83,673 (292)

Imaging permafrost [PDF]

open access: yesProceedings 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

Thawing permafrost poses environmental threat to thousands of sites with legacy industrial contamination

open access: yesNature 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
doaj   +1 more source

Ecological and geochemical characteristics of the snow cover in the Yakutsk city (Central Siberia)

open access: yesЛëд 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
doaj   +1 more source

Road foundation thawing at change in Ice content along the active layer depth [PDF]

open access: yesE3S Web of Conferences, 2023
The seasonal temperature and humidity regime of the road foundation in the active layer of soil largely determines the reliability and safety of the automobile road use.
Galkin A.F.   +3 more
doaj   +1 more source

Late Summer Water Sources in Rivers and Lakes of the Upper Yana River Basin, Northern Eurasia, Inferred from Hydrological Tracer Data

open access: yesHydrology, 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
doaj   +1 more source

The Monterey Event and the Paleocene‐Eocene Thermal Maximum

open access: yesGeophysical Monograph Series, Page 401-416., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Tali L. Babila, Gavin L. Foster
wiley  

+2 more sources

Relationships between greenhouse gas production and landscape position during short-term permafrost thaw under anaerobic conditions in the Lena Delta [PDF]

open access: yesBiogeosciences, 2023
Soils in the permafrost region have acted as carbon sinks for thousands of years. As a result of global warming, permafrost soils are thawing and will potentially release greenhouse gases (GHGs) such as methane (CH4) and carbon dioxide (CO2).
M. Laurent   +6 more
doaj   +1 more source

Monitoring the Permafrost Conditions along Pipeline Routes in Central Yakutia, Russia

open access: yesLand, 2022
Pipelines are critical infrastructure for Yakutia, transporting vital supplies to communities in this vast northern region. The pipeline routes in central Yakutia traverse areas of ice-rich permafrost that is sensitive to temperature changes.
Stepan Varlamov   +3 more
doaj   +1 more source

Rock glaciers in the Ulakhan-Chistay ridge (axial part of the Chersky mountain range)

open access: yesЛëд и снег, 2019
The Ulakhan-Chistay Ridge is interesting by the fact that one of the most extensive mountain glaciations in northeast Russia is located here. In addition, there are widespread specific glacial-cryogenic formations  – stone glaciers related to glacial and
V. M. Lytkin   +2 more
doaj   +1 more source

The study of the ground freezing method using natural cold to protect the foundation pit from groundwater inflow

open access: yesИнженерно-строительный журнал, 2015
When the bottom of the foundation pit is below the groundwater level, groundwater drawdown is required; as a rule, it is extremely expensive. In order to reduce water drawdown costs in areas with consistently low air temperatures we suggest to excavate ...
S.A. Guly
doaj   +1 more source

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