Changes in Unfrozen Water Contents in Warming Permafrost Soils

Climate warming in the Arctic, accompanied by changes in permafrost soil properties (mechanical, thermal, filtration, geophysical), is due to increasing unfrozen pore water content. The liquid component in frozen soils is an issue of key importance for permafrost engineering that has been extensivel...

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Main Authors: Evgeny Chuvilin, Natalia Sokolova, Boris Bukhanov
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Geosciences
Subjects:
Online Access:https://www.mdpi.com/2076-3263/12/6/253
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author Evgeny Chuvilin
Natalia Sokolova
Boris Bukhanov
author_facet Evgeny Chuvilin
Natalia Sokolova
Boris Bukhanov
author_sort Evgeny Chuvilin
collection DOAJ
description Climate warming in the Arctic, accompanied by changes in permafrost soil properties (mechanical, thermal, filtration, geophysical), is due to increasing unfrozen pore water content. The liquid component in frozen soils is an issue of key importance for permafrost engineering that has been extensively studied since the beginning of the 20th century. We suggest a synthesis and new classification of various experimental and calculation methods for the determination of unfrozen water content. Special focus is placed on the method of applying measurements to the water potential, which reveals the impact of permafrost warming on unfrozen water content. This method was applied to natural soil samples collected from shallow permafrost from northern West Siberia affected by climate change, and confirms the revealed trends. The obtained results confirm that unfrozen water content is sensitive not only temperature but also particle size distribution, salinity, and the organic matter content of permafrost soils.
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spelling doaj.art-9e7fc42f64ab4c55954cb80eba538d8d2023-11-23T16:50:11ZengMDPI AGGeosciences2076-32632022-06-0112625310.3390/geosciences12060253Changes in Unfrozen Water Contents in Warming Permafrost SoilsEvgeny Chuvilin0Natalia Sokolova1Boris Bukhanov2Center for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 30, Build. 1, Bolshoi Boulevard, 121205 Moscow, RussiaCenter for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 30, Build. 1, Bolshoi Boulevard, 121205 Moscow, RussiaCenter for Petroleum Science and Engineering, Skolkovo Institute of Science and Technology, 30, Build. 1, Bolshoi Boulevard, 121205 Moscow, RussiaClimate warming in the Arctic, accompanied by changes in permafrost soil properties (mechanical, thermal, filtration, geophysical), is due to increasing unfrozen pore water content. The liquid component in frozen soils is an issue of key importance for permafrost engineering that has been extensively studied since the beginning of the 20th century. We suggest a synthesis and new classification of various experimental and calculation methods for the determination of unfrozen water content. Special focus is placed on the method of applying measurements to the water potential, which reveals the impact of permafrost warming on unfrozen water content. This method was applied to natural soil samples collected from shallow permafrost from northern West Siberia affected by climate change, and confirms the revealed trends. The obtained results confirm that unfrozen water content is sensitive not only temperature but also particle size distribution, salinity, and the organic matter content of permafrost soils.https://www.mdpi.com/2076-3263/12/6/253permafrostfrozen soilphase composition of pore waterunfrozen water contentwater potential methodwarming
spellingShingle Evgeny Chuvilin
Natalia Sokolova
Boris Bukhanov
Changes in Unfrozen Water Contents in Warming Permafrost Soils
Geosciences
permafrost
frozen soil
phase composition of pore water
unfrozen water content
water potential method
warming
title Changes in Unfrozen Water Contents in Warming Permafrost Soils
title_full Changes in Unfrozen Water Contents in Warming Permafrost Soils
title_fullStr Changes in Unfrozen Water Contents in Warming Permafrost Soils
title_full_unstemmed Changes in Unfrozen Water Contents in Warming Permafrost Soils
title_short Changes in Unfrozen Water Contents in Warming Permafrost Soils
title_sort changes in unfrozen water contents in warming permafrost soils
topic permafrost
frozen soil
phase composition of pore water
unfrozen water content
water potential method
warming
url https://www.mdpi.com/2076-3263/12/6/253
work_keys_str_mv AT evgenychuvilin changesinunfrozenwatercontentsinwarmingpermafrostsoils
AT nataliasokolova changesinunfrozenwatercontentsinwarmingpermafrostsoils
AT borisbukhanov changesinunfrozenwatercontentsinwarmingpermafrostsoils