An effect of a snow cover on solar heating and melting of lake or sea ice
Solar radiative heating and melting of lake and sea ice is a geophysical problem that has attracted the attention of researchers for many years. This problem is important in connection with the current global change of the climate. Physical and computational models of the process are suggested in th...
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Online Access: | http://dx.doi.org/10.3389/fther.2023.1354265 https://www.frontiersin.org/articles/10.3389/fther.2023.1354265/full |
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crfrontiers:10.3389/fther.2023.1354265 2024-09-30T14:31:41+00:00 An effect of a snow cover on solar heating and melting of lake or sea ice Dombrovsky, Leonid A. 2024 http://dx.doi.org/10.3389/fther.2023.1354265 https://www.frontiersin.org/articles/10.3389/fther.2023.1354265/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Thermal Engineering volume 3 ISSN 2813-0456 journal-article 2024 crfrontiers https://doi.org/10.3389/fther.2023.1354265 2024-09-03T04:03:16Z Solar radiative heating and melting of lake and sea ice is a geophysical problem that has attracted the attention of researchers for many years. This problem is important in connection with the current global change of the climate. Physical and computational models of the process are suggested in the paper. Analytical solutions for the transfer of solar radiation in light-scattering snow cover and ice are combined with numerical calculations of heat transfer in a multilayer system. The thermal boundary conditions take into account convective heat losses to the ambient air and radiative cooling in the mid-infrared window of transparency of the cloudless atmosphere. The study begins with an anomalous spring melting of ice on the large high-mountain lakes of Tibet. It was found that a thick ice layer not covered with snow starts to melt at the ice-water interface due to volumetric solar heating of ice. The results of the calculations are in good agreement with the field observations. The computational analysis showed a dramatic change in the process when the ice is covered with snow. A qualitative change in the physical picture of the process occurs when the snow cover thickness increases to 20–30 cm. In this case, the snow melting precedes ice melting and water ponds are formed on the ice surface. This is typical for the Arctic Sea in polar summer. Known experimental data are used to estimate the melting of sea ice under the melt pond. Positive or negative feedback related to the specific optical and thermal properties of snow, ice, and water are discussed. Article in Journal/Newspaper Arctic Sea ice Frontiers (Publisher) Arctic Frontiers in Thermal Engineering 3 |
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Solar radiative heating and melting of lake and sea ice is a geophysical problem that has attracted the attention of researchers for many years. This problem is important in connection with the current global change of the climate. Physical and computational models of the process are suggested in the paper. Analytical solutions for the transfer of solar radiation in light-scattering snow cover and ice are combined with numerical calculations of heat transfer in a multilayer system. The thermal boundary conditions take into account convective heat losses to the ambient air and radiative cooling in the mid-infrared window of transparency of the cloudless atmosphere. The study begins with an anomalous spring melting of ice on the large high-mountain lakes of Tibet. It was found that a thick ice layer not covered with snow starts to melt at the ice-water interface due to volumetric solar heating of ice. The results of the calculations are in good agreement with the field observations. The computational analysis showed a dramatic change in the process when the ice is covered with snow. A qualitative change in the physical picture of the process occurs when the snow cover thickness increases to 20–30 cm. In this case, the snow melting precedes ice melting and water ponds are formed on the ice surface. This is typical for the Arctic Sea in polar summer. Known experimental data are used to estimate the melting of sea ice under the melt pond. Positive or negative feedback related to the specific optical and thermal properties of snow, ice, and water are discussed. |
format |
Article in Journal/Newspaper |
author |
Dombrovsky, Leonid A. |
spellingShingle |
Dombrovsky, Leonid A. An effect of a snow cover on solar heating and melting of lake or sea ice |
author_facet |
Dombrovsky, Leonid A. |
author_sort |
Dombrovsky, Leonid A. |
title |
An effect of a snow cover on solar heating and melting of lake or sea ice |
title_short |
An effect of a snow cover on solar heating and melting of lake or sea ice |
title_full |
An effect of a snow cover on solar heating and melting of lake or sea ice |
title_fullStr |
An effect of a snow cover on solar heating and melting of lake or sea ice |
title_full_unstemmed |
An effect of a snow cover on solar heating and melting of lake or sea ice |
title_sort |
effect of a snow cover on solar heating and melting of lake or sea ice |
publisher |
Frontiers Media SA |
publishDate |
2024 |
url |
http://dx.doi.org/10.3389/fther.2023.1354265 https://www.frontiersin.org/articles/10.3389/fther.2023.1354265/full |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Frontiers in Thermal Engineering volume 3 ISSN 2813-0456 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fther.2023.1354265 |
container_title |
Frontiers in Thermal Engineering |
container_volume |
3 |
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1811636108250841088 |