Influence of wet conditions on snow temperature diurnal variations: An East Antarctic sea–ice case study
A one-dimensional snow–sea–ice model is used to simulate the evolution of temperature profiles in dry and wet snow over adiurnal cycle,at locations where associated observations collected during the Sea Ice Physics and Ecosystem experiment(SIPEX-II)are available. The model is used at two sites,c...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Online Access: | http://hdl.handle.net/2078.1/171218 https://doi.org/10.1016/j.dsr2.2015.12.011 |
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ftunivlouvain:oai:dial.uclouvain.be:boreal:171218 2024-05-19T07:29:10+00:00 Influence of wet conditions on snow temperature diurnal variations: An East Antarctic sea–ice case study Lecomte, Olivier Toyota, T. UCL - SST/ELI/ELIC - Earth & Climate 2015 http://hdl.handle.net/2078.1/171218 https://doi.org/10.1016/j.dsr2.2015.12.011 eng eng Pergamon boreal:171218 http://hdl.handle.net/2078.1/171218 doi:10.1016/j.dsr2.2015.12.011 urn:ISSN:0967-0645 urn:EISSN:1879-0100 info:eu-repo/semantics/restrictedAccess Deep-Sea Research. Part 2: Topical Studies in Oceanography, (2015) Snow Sea ice Temperature Model Antarctic CISM:CECI 1443 info:eu-repo/semantics/article 2015 ftunivlouvain https://doi.org/10.1016/j.dsr2.2015.12.011 2024-04-24T01:25:39Z A one-dimensional snow–sea–ice model is used to simulate the evolution of temperature profiles in dry and wet snow over adiurnal cycle,at locations where associated observations collected during the Sea Ice Physics and Ecosystem experiment(SIPEX-II)are available. The model is used at two sites,corresponding to twoof the field campaign's sea–ice stations(2and6),and under two configurations: dry and wet snow conditions.In the wet snow modelsetups,liquid water may refreeze internally into the snow. At station 6,this releases laten theat to the snow and results in temperature changes at the base of the snow pack of a magnitude comparing to the model-observation difference ð1–2 1CÞ. As the temperature gradient across the snow is in turn weakened,the associated conductive heat flux through snow decreases. At station 2,internal refreezing also occurs but colder air temperatures and the competing process of strengthened heat conduction in snow concurrent to snow densification maintain a steady temperature profile. However,both situations sharea common feature and show that the conductive heat flux through the snow mays ignificantly be affected(by 10–20% in our simulations)as a result of the liquid water refreezing in snow, either through thermal conductivity enhancement or direct temperature gradient alteration.This ultimately gives motivation for further investigating the impacts of these processes on the sea–ice mass balance in the framework of global scale model simulations. Article in Journal/Newspaper Antarc* Antarctic Sea ice DIAL@UCLouvain (Université catholique de Louvain) Deep Sea Research Part II: Topical Studies in Oceanography 131 68 74 |
institution |
Open Polar |
collection |
DIAL@UCLouvain (Université catholique de Louvain) |
op_collection_id |
ftunivlouvain |
language |
English |
topic |
Snow Sea ice Temperature Model Antarctic CISM:CECI 1443 |
spellingShingle |
Snow Sea ice Temperature Model Antarctic CISM:CECI 1443 Lecomte, Olivier Toyota, T. Influence of wet conditions on snow temperature diurnal variations: An East Antarctic sea–ice case study |
topic_facet |
Snow Sea ice Temperature Model Antarctic CISM:CECI 1443 |
description |
A one-dimensional snow–sea–ice model is used to simulate the evolution of temperature profiles in dry and wet snow over adiurnal cycle,at locations where associated observations collected during the Sea Ice Physics and Ecosystem experiment(SIPEX-II)are available. The model is used at two sites,corresponding to twoof the field campaign's sea–ice stations(2and6),and under two configurations: dry and wet snow conditions.In the wet snow modelsetups,liquid water may refreeze internally into the snow. At station 6,this releases laten theat to the snow and results in temperature changes at the base of the snow pack of a magnitude comparing to the model-observation difference ð1–2 1CÞ. As the temperature gradient across the snow is in turn weakened,the associated conductive heat flux through snow decreases. At station 2,internal refreezing also occurs but colder air temperatures and the competing process of strengthened heat conduction in snow concurrent to snow densification maintain a steady temperature profile. However,both situations sharea common feature and show that the conductive heat flux through the snow mays ignificantly be affected(by 10–20% in our simulations)as a result of the liquid water refreezing in snow, either through thermal conductivity enhancement or direct temperature gradient alteration.This ultimately gives motivation for further investigating the impacts of these processes on the sea–ice mass balance in the framework of global scale model simulations. |
author2 |
UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Lecomte, Olivier Toyota, T. |
author_facet |
Lecomte, Olivier Toyota, T. |
author_sort |
Lecomte, Olivier |
title |
Influence of wet conditions on snow temperature diurnal variations: An East Antarctic sea–ice case study |
title_short |
Influence of wet conditions on snow temperature diurnal variations: An East Antarctic sea–ice case study |
title_full |
Influence of wet conditions on snow temperature diurnal variations: An East Antarctic sea–ice case study |
title_fullStr |
Influence of wet conditions on snow temperature diurnal variations: An East Antarctic sea–ice case study |
title_full_unstemmed |
Influence of wet conditions on snow temperature diurnal variations: An East Antarctic sea–ice case study |
title_sort |
influence of wet conditions on snow temperature diurnal variations: an east antarctic sea–ice case study |
publisher |
Pergamon |
publishDate |
2015 |
url |
http://hdl.handle.net/2078.1/171218 https://doi.org/10.1016/j.dsr2.2015.12.011 |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
Deep-Sea Research. Part 2: Topical Studies in Oceanography, (2015) |
op_relation |
boreal:171218 http://hdl.handle.net/2078.1/171218 doi:10.1016/j.dsr2.2015.12.011 urn:ISSN:0967-0645 urn:EISSN:1879-0100 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.dsr2.2015.12.011 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
131 |
container_start_page |
68 |
op_container_end_page |
74 |
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1799477880403525632 |