Results 31 to 40 of about 34,348 (282)

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

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

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

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

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

Permafrost temperature and active-layer thickness of Yakutia with 0.5-degree spatial resolution for model evaluation [PDF]

open access: yesEarth System Science Data, 2013
Based on the map of landscapes and permafrost conditions in Yakutia (Merzlotno-landshaftnaya karta Yakutskoi0 ASSR, Gosgeodeziya SSSR, 1991), rasterized maps of permafrost temperature and active-layer thickness of Yakutia, East Siberia were derived.
C. Beer, A. N. Fedorov, Y. Torgovkin
doaj   +1 more source

Mapping Mountain Permafrost Landscapes in Siberia Using Landsat Thermal Imagery

open access: yesGeosciences, 2018
Intensive development of South Yakutia, a mountainous area in the Russian sporadic permafrost zone, must be founded on knowledge about regional permafrost conditions. New permafrost maps for mountainous areas in South Yakutia (the Elkon Mountains and the
Svetlana V. Kalinicheva   +2 more
doaj   +1 more source

Degradation changes stable carbon isotope depth profiles in palsa peatlands [PDF]

open access: yes, 2014
Palsa peatlands are a significant carbon pool in the global carbon cycle and are projected to change by global warming due to accelerated permafrost thaw. Our aim was to use stable carbon isotopes as indicators of palsa degradation.
Leifeld, J.   +5 more
core   +1 more source

Climate and Permafrost Shifts in Yakutia’s Arctic and Subarctic from 1965 to 2023

open access: yesLand
By analyzing the last 50–60 years of climate changes in Arctic and Subarctic Yakutia, we have identified three distinct periods of climate development.
Alexander N. Fedorov   +12 more
doaj   +1 more source

Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia

open access: yesLand, 2021
Climate change effects, such as melting of glaciers and sea ice in response to rising temperatures, may lead to an increase in global water availability and thus in precipitation.
Aleksandr Zhirkov   +3 more
doaj   +1 more source

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