Influence of the representation of landfast ice on the simulation of the Arctic sea ice and Arctic Ocean halocline
Landfast ice is near-motionless sea ice attached to the coast. Despite its potential for modifying sea ice and ocean properties, most state-of-the-art sea ice models poorly represent landfast ice. Here, we examine two crucial processes responsible for the formation and stabilization of landfast ice,...
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:287000 2024-05-19T07:34:27+00:00 Influence of the representation of landfast ice on the simulation of the Arctic sea ice and Arctic Ocean halocline Sterlin, Jean Orval, Tim Lemieux, Jean-François Rousset, Clément Fichefet, Thierry Massonnet, François RAULIER, Jonathan UCL - SST/ELI/ELIC - Earth & Climate 2024 http://hdl.handle.net/2078.1/287000 https://doi.org/10.1007/s10236-024-01611-0 eng eng Springer boreal:287000 http://hdl.handle.net/2078.1/287000 doi:10.1007/s10236-024-01611-0 urn:ISSN:1616-7228 info:eu-repo/semantics/openAccess Ocean Dynamics, p. 31 (2024) Oceanography info:eu-repo/semantics/article 2024 ftunistlouisbrus https://doi.org/10.1007/s10236-024-01611-0 2024-05-02T00:03:38Z Landfast ice is near-motionless sea ice attached to the coast. Despite its potential for modifying sea ice and ocean properties, most state-of-the-art sea ice models poorly represent landfast ice. Here, we examine two crucial processes responsible for the formation and stabilization of landfast ice, namely sea ice tensile strength and seabed–ice keel interactions. We investigate the impact of these processes on the Arctic sea ice cover and halocline layer using the global coupled ocean–sea ice model NEMO-LIM3. We show that including seabed–ice keel stress improves the seasonality and spatial distribution of the landfast ice cover in the Laptev and East Siberian Seas. This improved landfast ice representation sets the position of flaw polynyas to new locations approximately above the continental shelf break. The impact of sea ice tensile strength on the stability of the Arctic halocline layer is far more effective. Incorporating this process in the model yields a thicker, more consolidated, and less mobile Arctic sea ice pack that further decouples the ocean and atmosphere. As a result, the available potential energy of the Arctic halocline is decreased (increased) by 30kJ/m 30kJ/m ) in the Amerasian (Eurasian) compared to the reference simulation excluding sea ice tensile strength and seabed–ice keel stress. Our findings highlight the need to better understand landfast ice physical processes conjointly with the subsequent influences on the ocean and sea ice states. Article in Journal/Newspaper Arctic Arctic Ocean ice pack laptev Sea ice DIAL@USL-B (Université Saint-Louis, Bruxelles) Ocean Dynamics 74 5 407 437 |
institution |
Open Polar |
collection |
DIAL@USL-B (Université Saint-Louis, Bruxelles) |
op_collection_id |
ftunistlouisbrus |
language |
English |
topic |
Oceanography |
spellingShingle |
Oceanography Sterlin, Jean Orval, Tim Lemieux, Jean-François Rousset, Clément Fichefet, Thierry Massonnet, François RAULIER, Jonathan Influence of the representation of landfast ice on the simulation of the Arctic sea ice and Arctic Ocean halocline |
topic_facet |
Oceanography |
description |
Landfast ice is near-motionless sea ice attached to the coast. Despite its potential for modifying sea ice and ocean properties, most state-of-the-art sea ice models poorly represent landfast ice. Here, we examine two crucial processes responsible for the formation and stabilization of landfast ice, namely sea ice tensile strength and seabed–ice keel interactions. We investigate the impact of these processes on the Arctic sea ice cover and halocline layer using the global coupled ocean–sea ice model NEMO-LIM3. We show that including seabed–ice keel stress improves the seasonality and spatial distribution of the landfast ice cover in the Laptev and East Siberian Seas. This improved landfast ice representation sets the position of flaw polynyas to new locations approximately above the continental shelf break. The impact of sea ice tensile strength on the stability of the Arctic halocline layer is far more effective. Incorporating this process in the model yields a thicker, more consolidated, and less mobile Arctic sea ice pack that further decouples the ocean and atmosphere. As a result, the available potential energy of the Arctic halocline is decreased (increased) by 30kJ/m 30kJ/m ) in the Amerasian (Eurasian) compared to the reference simulation excluding sea ice tensile strength and seabed–ice keel stress. Our findings highlight the need to better understand landfast ice physical processes conjointly with the subsequent influences on the ocean and sea ice states. |
author2 |
UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Sterlin, Jean Orval, Tim Lemieux, Jean-François Rousset, Clément Fichefet, Thierry Massonnet, François RAULIER, Jonathan |
author_facet |
Sterlin, Jean Orval, Tim Lemieux, Jean-François Rousset, Clément Fichefet, Thierry Massonnet, François RAULIER, Jonathan |
author_sort |
Sterlin, Jean |
title |
Influence of the representation of landfast ice on the simulation of the Arctic sea ice and Arctic Ocean halocline |
title_short |
Influence of the representation of landfast ice on the simulation of the Arctic sea ice and Arctic Ocean halocline |
title_full |
Influence of the representation of landfast ice on the simulation of the Arctic sea ice and Arctic Ocean halocline |
title_fullStr |
Influence of the representation of landfast ice on the simulation of the Arctic sea ice and Arctic Ocean halocline |
title_full_unstemmed |
Influence of the representation of landfast ice on the simulation of the Arctic sea ice and Arctic Ocean halocline |
title_sort |
influence of the representation of landfast ice on the simulation of the arctic sea ice and arctic ocean halocline |
publisher |
Springer |
publishDate |
2024 |
url |
http://hdl.handle.net/2078.1/287000 https://doi.org/10.1007/s10236-024-01611-0 |
genre |
Arctic Arctic Ocean ice pack laptev Sea ice |
genre_facet |
Arctic Arctic Ocean ice pack laptev Sea ice |
op_source |
Ocean Dynamics, p. 31 (2024) |
op_relation |
boreal:287000 http://hdl.handle.net/2078.1/287000 doi:10.1007/s10236-024-01611-0 urn:ISSN:1616-7228 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s10236-024-01611-0 |
container_title |
Ocean Dynamics |
container_volume |
74 |
container_issue |
5 |
container_start_page |
407 |
op_container_end_page |
437 |
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1799472546990522368 |