Implementation of a brittle sea ice rheology in an Eulerian, finite-difference, C-grid modeling framework: impact on the simulated deformation of sea ice in the Arctic
We have implemented the brittle Bingham–Maxwell sea ice rheology (BBM) into SI3, the sea ice component of NEMO. After discussing the numerical aspects and requirements that are specific to the implementation of a brittle rheology in the Eulerian, finite-difference, Arakawa C-grid framework, we detai...
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2024
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ftdoajarticles:oai:doaj.org/article:4847e7444b2e490fb3d79cfe72fb699f 2024-09-15T18:34:12+00:00 Implementation of a brittle sea ice rheology in an Eulerian, finite-difference, C-grid modeling framework: impact on the simulated deformation of sea ice in the Arctic L. Brodeau P. Rampal E. Ólason V. Dansereau 2024-08-01T00:00:00Z https://doi.org/10.5194/gmd-17-6051-2024 https://doaj.org/article/4847e7444b2e490fb3d79cfe72fb699f EN eng Copernicus Publications https://gmd.copernicus.org/articles/17/6051/2024/gmd-17-6051-2024.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-17-6051-2024 1991-959X 1991-9603 https://doaj.org/article/4847e7444b2e490fb3d79cfe72fb699f Geoscientific Model Development, Vol 17, Pp 6051-6082 (2024) Geology QE1-996.5 article 2024 ftdoajarticles https://doi.org/10.5194/gmd-17-6051-2024 2024-08-19T14:56:38Z We have implemented the brittle Bingham–Maxwell sea ice rheology (BBM) into SI3, the sea ice component of NEMO. After discussing the numerical aspects and requirements that are specific to the implementation of a brittle rheology in the Eulerian, finite-difference, Arakawa C-grid framework, we detail the approach we have used. This approach relies on the introduction of an additional set of prognostic stress tensor components, sea ice damage, and sea ice velocity vector, following a grid point arrangement that expands the C-grid into the Arakawa E-grid. The newly implemented BBM rheology is first assessed by means of a set of idealized SI3 simulations at different spatial resolutions. Then, sea ice deformation rates obtained from simulations of the Arctic at a 1 / 4 <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="20pt" height="14pt" class="svg-formula" dspmath="mathimg" md5hash="f7b7a5d5bfd5c45cef6c295312dc1896"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="gmd-17-6051-2024-ie00001.svg" width="20pt" height="14pt" src="gmd-17-6051-2024-ie00001.png"/></svg:svg> ° spatial resolution, performed with the coupled ocean–sea ice setup of NEMO, are assessed against satellite observations. For all these simulations, results obtained with the default current workhorse setup of SI3 are provided to serve as a reference. Our results show that using a brittle type of rheology, such as BBM, allows SI3 to simulate the highly localized deformation pattern of sea ice, as well as its scaling properties, from the scale of the model's computational grid up to the basin scale. Article in Journal/Newspaper Sea ice Directory of Open Access Journals: DOAJ Articles Geoscientific Model Development 17 15 6051 6082 |
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ftdoajarticles |
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English |
topic |
Geology QE1-996.5 |
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Geology QE1-996.5 L. Brodeau P. Rampal E. Ólason V. Dansereau Implementation of a brittle sea ice rheology in an Eulerian, finite-difference, C-grid modeling framework: impact on the simulated deformation of sea ice in the Arctic |
topic_facet |
Geology QE1-996.5 |
description |
We have implemented the brittle Bingham–Maxwell sea ice rheology (BBM) into SI3, the sea ice component of NEMO. After discussing the numerical aspects and requirements that are specific to the implementation of a brittle rheology in the Eulerian, finite-difference, Arakawa C-grid framework, we detail the approach we have used. This approach relies on the introduction of an additional set of prognostic stress tensor components, sea ice damage, and sea ice velocity vector, following a grid point arrangement that expands the C-grid into the Arakawa E-grid. The newly implemented BBM rheology is first assessed by means of a set of idealized SI3 simulations at different spatial resolutions. Then, sea ice deformation rates obtained from simulations of the Arctic at a 1 / 4 <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="20pt" height="14pt" class="svg-formula" dspmath="mathimg" md5hash="f7b7a5d5bfd5c45cef6c295312dc1896"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="gmd-17-6051-2024-ie00001.svg" width="20pt" height="14pt" src="gmd-17-6051-2024-ie00001.png"/></svg:svg> ° spatial resolution, performed with the coupled ocean–sea ice setup of NEMO, are assessed against satellite observations. For all these simulations, results obtained with the default current workhorse setup of SI3 are provided to serve as a reference. Our results show that using a brittle type of rheology, such as BBM, allows SI3 to simulate the highly localized deformation pattern of sea ice, as well as its scaling properties, from the scale of the model's computational grid up to the basin scale. |
format |
Article in Journal/Newspaper |
author |
L. Brodeau P. Rampal E. Ólason V. Dansereau |
author_facet |
L. Brodeau P. Rampal E. Ólason V. Dansereau |
author_sort |
L. Brodeau |
title |
Implementation of a brittle sea ice rheology in an Eulerian, finite-difference, C-grid modeling framework: impact on the simulated deformation of sea ice in the Arctic |
title_short |
Implementation of a brittle sea ice rheology in an Eulerian, finite-difference, C-grid modeling framework: impact on the simulated deformation of sea ice in the Arctic |
title_full |
Implementation of a brittle sea ice rheology in an Eulerian, finite-difference, C-grid modeling framework: impact on the simulated deformation of sea ice in the Arctic |
title_fullStr |
Implementation of a brittle sea ice rheology in an Eulerian, finite-difference, C-grid modeling framework: impact on the simulated deformation of sea ice in the Arctic |
title_full_unstemmed |
Implementation of a brittle sea ice rheology in an Eulerian, finite-difference, C-grid modeling framework: impact on the simulated deformation of sea ice in the Arctic |
title_sort |
implementation of a brittle sea ice rheology in an eulerian, finite-difference, c-grid modeling framework: impact on the simulated deformation of sea ice in the arctic |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/gmd-17-6051-2024 https://doaj.org/article/4847e7444b2e490fb3d79cfe72fb699f |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Geoscientific Model Development, Vol 17, Pp 6051-6082 (2024) |
op_relation |
https://gmd.copernicus.org/articles/17/6051/2024/gmd-17-6051-2024.pdf https://doaj.org/toc/1991-959X https://doaj.org/toc/1991-9603 doi:10.5194/gmd-17-6051-2024 1991-959X 1991-9603 https://doaj.org/article/4847e7444b2e490fb3d79cfe72fb699f |
op_doi |
https://doi.org/10.5194/gmd-17-6051-2024 |
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Geoscientific Model Development |
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17 |
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15 |
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6051 |
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6082 |
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