Influence of snow cover stratigraphy on its thermal resistance

Effect of the snow thermal resistance on soil freezing is comparable to the influence of mean temperature in the cold period. Available values of the effective thermal conductivity of snow have been analyzed and compared with experimental data on snow cover with different structure collected in Mosc...

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Main Authors: N. I. Osokin, A. V. Sosnovsky, R. A. Chernov
Format: Article
Language:Russian
Published: Nauka 2015-04-01
Series:Лëд и снег
Subjects:
Online Access:https://ice-snow.igras.ru/jour/article/view/118
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author N. I. Osokin
A. V. Sosnovsky
R. A. Chernov
author_facet N. I. Osokin
A. V. Sosnovsky
R. A. Chernov
author_sort N. I. Osokin
collection DOAJ
description Effect of the snow thermal resistance on soil freezing is comparable to the influence of mean temperature in the cold period. Available values of the effective thermal conductivity of snow have been analyzed and compared with experimental data on snow cover with different structure collected in Moscow region. Effect of ice crusts and depth hoar layer on the thermal resistance of snow cove have been illustrated with West Spitsbergen and Moscow region examples. Neglect of snow cover stratigraphy in estimations of thermal conductivity was demonstrated to overrate is more than by half. As a result, the estimated rate of soil freezing might be higher than actual one, and therefore transition to the dangerous soil weakening and the beginning of permafrost degradation might past unnoticed.
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spelling doaj.art-8b17e3bf54014eb9a6773b123dc1d7342023-03-13T08:01:16ZrusNaukaЛëд и снег2076-67342412-37652015-04-01533637010.15356/2076-6734-2013-3-63-70112Influence of snow cover stratigraphy on its thermal resistanceN. I. Osokin0A. V. Sosnovsky1R. A. Chernov2Институт географии РАН, МоскваИнститут географии РАН, МоскваИнститут географии РАН, МоскваEffect of the snow thermal resistance on soil freezing is comparable to the influence of mean temperature in the cold period. Available values of the effective thermal conductivity of snow have been analyzed and compared with experimental data on snow cover with different structure collected in Moscow region. Effect of ice crusts and depth hoar layer on the thermal resistance of snow cove have been illustrated with West Spitsbergen and Moscow region examples. Neglect of snow cover stratigraphy in estimations of thermal conductivity was demonstrated to overrate is more than by half. As a result, the estimated rate of soil freezing might be higher than actual one, and therefore transition to the dangerous soil weakening and the beginning of permafrost degradation might past unnoticed.https://ice-snow.igras.ru/jour/article/view/118глубинная изморозькоэффициент теплопроводностиплотностьтермическое сопротивление снега.
spellingShingle N. I. Osokin
A. V. Sosnovsky
R. A. Chernov
Influence of snow cover stratigraphy on its thermal resistance
Лëд и снег
глубинная изморозь
коэффициент теплопроводности
плотность
термическое сопротивление снега.
title Influence of snow cover stratigraphy on its thermal resistance
title_full Influence of snow cover stratigraphy on its thermal resistance
title_fullStr Influence of snow cover stratigraphy on its thermal resistance
title_full_unstemmed Influence of snow cover stratigraphy on its thermal resistance
title_short Influence of snow cover stratigraphy on its thermal resistance
title_sort influence of snow cover stratigraphy on its thermal resistance
topic глубинная изморозь
коэффициент теплопроводности
плотность
термическое сопротивление снега.
url https://ice-snow.igras.ru/jour/article/view/118
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AT avsosnovsky influenceofsnowcoverstratigraphyonitsthermalresistance
AT rachernov influenceofsnowcoverstratigraphyonitsthermalresistance