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

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. In Central Yakutia, as one of the possible options for climate change, an increase in rainfall is possible, which makes...

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Main Authors: Aleksandr Zhirkov, Petr Permyakov, Zhi Wen, Anatolii Kirillin
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Land
Subjects:
Online Access:https://www.mdpi.com/2073-445X/10/11/1230
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author Aleksandr Zhirkov
Petr Permyakov
Zhi Wen
Anatolii Kirillin
author_facet Aleksandr Zhirkov
Petr Permyakov
Zhi Wen
Anatolii Kirillin
author_sort Aleksandr Zhirkov
collection DOAJ
description 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. In Central Yakutia, as one of the possible options for climate change, an increase in rainfall is possible, which makes up more than 60% of the annual precipitation. Rainfall is a highly variable meteorological parameter both spatially and temporally. In order to assess its effect on the ground temperature regime in Central Yakutia, we conducted manipulation and numerical experiments with increased rainfall. The manipulation experiment results suggest that a significant (three-fold) increase in rainfall can lower the mean annual ground temperatures locally. The long-term simulation predicts that a 50% increase in rainfall would have a warming effect on the ground thermal regime on a regional scale. For Central Yakutia, infiltration of increased precipitation has been shown to have both warming and cooling effect depending on the area affected.
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spelling doaj.art-8440750dc93d47eaa844d491aa742d042023-11-23T00:02:12ZengMDPI AGLand2073-445X2021-11-011011123010.3390/land10111230Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central YakutiaAleksandr Zhirkov0Petr Permyakov1Zhi Wen2Anatolii Kirillin3Melnikov Permafrost Institute SB RAS, 677010 Yakutsk, RussiaMelnikov Permafrost Institute SB RAS, 677010 Yakutsk, RussiaState Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources CAS, Lanzhou 730000, ChinaMelnikov Permafrost Institute SB RAS, 677010 Yakutsk, RussiaClimate 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. In Central Yakutia, as one of the possible options for climate change, an increase in rainfall is possible, which makes up more than 60% of the annual precipitation. Rainfall is a highly variable meteorological parameter both spatially and temporally. In order to assess its effect on the ground temperature regime in Central Yakutia, we conducted manipulation and numerical experiments with increased rainfall. The manipulation experiment results suggest that a significant (three-fold) increase in rainfall can lower the mean annual ground temperatures locally. The long-term simulation predicts that a 50% increase in rainfall would have a warming effect on the ground thermal regime on a regional scale. For Central Yakutia, infiltration of increased precipitation has been shown to have both warming and cooling effect depending on the area affected.https://www.mdpi.com/2073-445X/10/11/1230rainfallinfiltrationpermafrostthermal regimeactive layerlayer of annual temperature variations
spellingShingle Aleksandr Zhirkov
Petr Permyakov
Zhi Wen
Anatolii Kirillin
Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia
Land
rainfall
infiltration
permafrost
thermal regime
active layer
layer of annual temperature variations
title Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia
title_full Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia
title_fullStr Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia
title_full_unstemmed Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia
title_short Influence of Rainfall Changes on the Temperature Regime of Permafrost in Central Yakutia
title_sort influence of rainfall changes on the temperature regime of permafrost in central yakutia
topic rainfall
infiltration
permafrost
thermal regime
active layer
layer of annual temperature variations
url https://www.mdpi.com/2073-445X/10/11/1230
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AT petrpermyakov influenceofrainfallchangesonthetemperatureregimeofpermafrostincentralyakutia
AT zhiwen influenceofrainfallchangesonthetemperatureregimeofpermafrostincentralyakutia
AT anatoliikirillin influenceofrainfallchangesonthetemperatureregimeofpermafrostincentralyakutia