A probabilistic seabed–ice keel interaction model
Landfast ice is a common coastal feature in the Arctic Ocean and around the Antarctic continent. One contributing and stabilizing mechanism is the grounding of sea ice ridges in shallow water. Recently, a grounding scheme representing this effect on sea ice dynamics was developed in order to improve...
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2022
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ftdoajarticles:oai:doaj.org/article:b04a131d38d649afbbd68db0913b47b0 2023-05-15T14:00:15+02:00 A probabilistic seabed–ice keel interaction model F. Dupont D. Dumont J.-F. Lemieux E. Dumas-Lefebvre A. Caya 2022-05-01T00:00:00Z https://doi.org/10.5194/tc-16-1963-2022 https://doaj.org/article/b04a131d38d649afbbd68db0913b47b0 EN eng Copernicus Publications https://tc.copernicus.org/articles/16/1963/2022/tc-16-1963-2022.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-16-1963-2022 1994-0416 1994-0424 https://doaj.org/article/b04a131d38d649afbbd68db0913b47b0 The Cryosphere, Vol 16, Pp 1963-1977 (2022) Environmental sciences GE1-350 Geology QE1-996.5 article 2022 ftdoajarticles https://doi.org/10.5194/tc-16-1963-2022 2022-12-31T02:50:34Z Landfast ice is a common coastal feature in the Arctic Ocean and around the Antarctic continent. One contributing and stabilizing mechanism is the grounding of sea ice ridges in shallow water. Recently, a grounding scheme representing this effect on sea ice dynamics was developed in order to improve the simulation of landfast ice by continuum-based sea ice models. This parameterization assumes that the ridged keel thickness is proportional to the mean thickness. Results demonstrated that this simple parameterization notably improves the simulation of landfast ice in many regions such as in the East Siberian Sea, the Laptev Sea and along the Alaskan coast. Nevertheless, a weakness of this approach is that it is based solely on the mean properties of sea ice. Here, we extend the parameterization by taking into account subgrid-scale ice thickness distribution and bathymetry distribution, which are generally non-normal, and by computing the maximum seabed stress as a joint probability interaction between the sea ice and the seabed. The probabilistic approach shows a reasonably good agreement with observations and with the previously proposed grounding scheme while potentially offering more physical insights into the formation of landfast ice. Article in Journal/Newspaper Antarc* Antarctic Arctic Arctic Ocean East Siberian Sea laptev Laptev Sea Sea ice The Cryosphere Directory of Open Access Journals: DOAJ Articles Antarctic Arctic Arctic Ocean East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Laptev Sea The Antarctic The Cryosphere 16 5 1963 1977 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 F. Dupont D. Dumont J.-F. Lemieux E. Dumas-Lefebvre A. Caya A probabilistic seabed–ice keel interaction model |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Landfast ice is a common coastal feature in the Arctic Ocean and around the Antarctic continent. One contributing and stabilizing mechanism is the grounding of sea ice ridges in shallow water. Recently, a grounding scheme representing this effect on sea ice dynamics was developed in order to improve the simulation of landfast ice by continuum-based sea ice models. This parameterization assumes that the ridged keel thickness is proportional to the mean thickness. Results demonstrated that this simple parameterization notably improves the simulation of landfast ice in many regions such as in the East Siberian Sea, the Laptev Sea and along the Alaskan coast. Nevertheless, a weakness of this approach is that it is based solely on the mean properties of sea ice. Here, we extend the parameterization by taking into account subgrid-scale ice thickness distribution and bathymetry distribution, which are generally non-normal, and by computing the maximum seabed stress as a joint probability interaction between the sea ice and the seabed. The probabilistic approach shows a reasonably good agreement with observations and with the previously proposed grounding scheme while potentially offering more physical insights into the formation of landfast ice. |
format |
Article in Journal/Newspaper |
author |
F. Dupont D. Dumont J.-F. Lemieux E. Dumas-Lefebvre A. Caya |
author_facet |
F. Dupont D. Dumont J.-F. Lemieux E. Dumas-Lefebvre A. Caya |
author_sort |
F. Dupont |
title |
A probabilistic seabed–ice keel interaction model |
title_short |
A probabilistic seabed–ice keel interaction model |
title_full |
A probabilistic seabed–ice keel interaction model |
title_fullStr |
A probabilistic seabed–ice keel interaction model |
title_full_unstemmed |
A probabilistic seabed–ice keel interaction model |
title_sort |
probabilistic seabed–ice keel interaction model |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/tc-16-1963-2022 https://doaj.org/article/b04a131d38d649afbbd68db0913b47b0 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Antarctic Arctic Arctic Ocean East Siberian Sea Laptev Sea The Antarctic |
geographic_facet |
Antarctic Arctic Arctic Ocean East Siberian Sea Laptev Sea The Antarctic |
genre |
Antarc* Antarctic Arctic Arctic Ocean East Siberian Sea laptev Laptev Sea Sea ice The Cryosphere |
genre_facet |
Antarc* Antarctic Arctic Arctic Ocean East Siberian Sea laptev Laptev Sea Sea ice The Cryosphere |
op_source |
The Cryosphere, Vol 16, Pp 1963-1977 (2022) |
op_relation |
https://tc.copernicus.org/articles/16/1963/2022/tc-16-1963-2022.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-16-1963-2022 1994-0416 1994-0424 https://doaj.org/article/b04a131d38d649afbbd68db0913b47b0 |
op_doi |
https://doi.org/10.5194/tc-16-1963-2022 |
container_title |
The Cryosphere |
container_volume |
16 |
container_issue |
5 |
container_start_page |
1963 |
op_container_end_page |
1977 |
_version_ |
1766269294941831168 |