Results 51 to 60 of about 125,890 (374)

Construction on Permafrost

open access: yesCanadian 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.
openaire   +4 more sources

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

Estimation of stream water components and residence time in a permafrost catchment in the central Tibetan Plateau using long-term water stable isotopic data [PDF]

open access: yesThe Cryosphere, 2022
Global warming has significantly impacted the hydrological processes and ecological environment in permafrost regions. Mean residence time (MRT) is a fundamental catchment descriptor that provides hydrological information regarding storage, flow pathways,
S. Wang   +6 more
doaj   +1 more source

Effect of Methane Mitigation on Global Temperature under a Permafrost Feedback [PDF]

open access: yesarXiv, 2023
Earth systems may fall into an undesirable system state if 1.5 degrees celsius (C) of warming is exceeded. Carbon release from substantial permafrost stocks vulnerable to near-term warming represents a positive climate feedback that may increase the risk of 1.5 C warming or greater.
arxiv  

Comparison of Algorithms and Parameterisations for Infiltration into Organic-Covered Permafrost Soils [PDF]

open access: yes, 2010
Infiltration into frozen and unfrozen soils is critical in hydrology, controlling active layer soil water dynamics and influencing runoff. Few Land Surface Models (LSMs) and Hydrological Models (HMs) have been developed, adapted or tested for frozen ...
Carey, Sean K.   +5 more
core   +2 more sources

Host-linked soil viral ecology along a permafrost thaw gradient

open access: yesNature Microbiology, 2018
Climate change threatens to release abundant carbon that is sequestered at high latitudes, but the constraints on microbial metabolisms that mediate the release of methane and carbon dioxide are poorly understood1–7.
J. Emerson   +22 more
semanticscholar   +1 more source

A synthesis dataset of permafrost thermal state for the Qinghai–Tibet (Xizang) Plateau, China

open access: yes, 2021
. Permafrost has great influences on the climatic, hydrological, and ecological systems on the Qinghai–Tibet Plateau (QTP). The changing permafrost and its impact have been attracting great attention worldwide like never before.
Lin Zhao   +19 more
semanticscholar   +1 more source

Plant uptake of CO2 outpaces losses from permafrost and plant respiration on the Tibetan Plateau

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance Cold regions contain vast stores of permafrost carbon. Rapid warming will cause permafrost to thaw and plant respiration to accelerate, with a resultant loss of CO2, but could also increase the fixation of CO2 by plants. A network of 32 eddy
Da Wei   +9 more
semanticscholar   +1 more source

Permafrost - An Alternative Target Material for Ultra High Energy Neutrino Detection? [PDF]

open access: yesNucl.Instrum.Meth.A587:29-34,2008, 2007
The detection of cosmic neutrinos with energies above 1017 eV got growing interest during recent years. Possible target materials for in-matter arrays of ~100 km3 size under discussion are water, ice and rock salt. Here we propose to investigate permafrost as an additional alternative, covering ~20% of Earth land surface and reaching down to more than ...
arxiv   +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

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