Adaptive mesh, finite volume modeling of marine ice sheets
Continental scale marine ice sheets such as the present day West Antarctic Ice Sheet are strongly affected by highly localized features, presenting a challenge to numerical models. Perhaps the best known phenomenon of this kind is the migration of the grounding line the division between ice in conta...
Published in: | Journal of Computational Physics |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | https://hdl.handle.net/1983/1b2be4ab-54c2-425b-920f-df36115b83b4 https://research-information.bris.ac.uk/en/publications/1b2be4ab-54c2-425b-920f-df36115b83b4 https://doi.org/10.1016/j.jcp.2012.08.037 |
id |
ftubristolcris:oai:research-information.bris.ac.uk:publications/1b2be4ab-54c2-425b-920f-df36115b83b4 |
---|---|
record_format |
openpolar |
spelling |
ftubristolcris:oai:research-information.bris.ac.uk:publications/1b2be4ab-54c2-425b-920f-df36115b83b4 2024-04-28T08:02:05+00:00 Adaptive mesh, finite volume modeling of marine ice sheets Cornford, Stephen L. Martin, Daniel F. Graves, Daniel T. Ranken, Douglas F. Le Brocq, Anne M. Gladstone, Rupert M. Payne, Antony J. Ng, Esmond G. Lipscomb, William H. 2013-01 https://hdl.handle.net/1983/1b2be4ab-54c2-425b-920f-df36115b83b4 https://research-information.bris.ac.uk/en/publications/1b2be4ab-54c2-425b-920f-df36115b83b4 https://doi.org/10.1016/j.jcp.2012.08.037 eng eng https://research-information.bris.ac.uk/en/publications/1b2be4ab-54c2-425b-920f-df36115b83b4 info:eu-repo/semantics/restrictedAccess Cornford , S L , Martin , D F , Graves , D T , Ranken , D F , Le Brocq , A M , Gladstone , R M , Payne , A J , Ng , E G & Lipscomb , W H 2013 , ' Adaptive mesh, finite volume modeling of marine ice sheets ' , Journal of Computational Physics , vol. 232 , no. 1 , pp. 529-549 . https://doi.org/10.1016/j.jcp.2012.08.037 article 2013 ftubristolcris https://doi.org/10.1016/j.jcp.2012.08.037 2024-04-09T23:51:41Z Continental scale marine ice sheets such as the present day West Antarctic Ice Sheet are strongly affected by highly localized features, presenting a challenge to numerical models. Perhaps the best known phenomenon of this kind is the migration of the grounding line the division between ice in contact with bedrock and floating ice shelves - which needs to be treated at sub-kilometer resolution. We implement a block-structured finite volume method with adaptive mesh refinement (AMR) for three dimensional ice sheets, which allows us to discretize a narrow region around the grounding line at high resolution and the remainder of the ice sheet at low resolution. We demonstrate AMR simulations that are in agreement with uniform mesh simulations, but are computationally far cheaper, appropriately and efficiently evolving the mesh as the grounding line moves over significant distances. As an example application, we model rapid deglaciation of Pine Island Glacier in West Antarctica caused by melting beneath its ice shelf. (C) 2012 Elsevier Inc. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Ice Shelves Pine Island Pine Island Glacier West Antarctica University of Bristol: Bristol Research Journal of Computational Physics 232 1 529 549 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
description |
Continental scale marine ice sheets such as the present day West Antarctic Ice Sheet are strongly affected by highly localized features, presenting a challenge to numerical models. Perhaps the best known phenomenon of this kind is the migration of the grounding line the division between ice in contact with bedrock and floating ice shelves - which needs to be treated at sub-kilometer resolution. We implement a block-structured finite volume method with adaptive mesh refinement (AMR) for three dimensional ice sheets, which allows us to discretize a narrow region around the grounding line at high resolution and the remainder of the ice sheet at low resolution. We demonstrate AMR simulations that are in agreement with uniform mesh simulations, but are computationally far cheaper, appropriately and efficiently evolving the mesh as the grounding line moves over significant distances. As an example application, we model rapid deglaciation of Pine Island Glacier in West Antarctica caused by melting beneath its ice shelf. (C) 2012 Elsevier Inc. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Cornford, Stephen L. Martin, Daniel F. Graves, Daniel T. Ranken, Douglas F. Le Brocq, Anne M. Gladstone, Rupert M. Payne, Antony J. Ng, Esmond G. Lipscomb, William H. |
spellingShingle |
Cornford, Stephen L. Martin, Daniel F. Graves, Daniel T. Ranken, Douglas F. Le Brocq, Anne M. Gladstone, Rupert M. Payne, Antony J. Ng, Esmond G. Lipscomb, William H. Adaptive mesh, finite volume modeling of marine ice sheets |
author_facet |
Cornford, Stephen L. Martin, Daniel F. Graves, Daniel T. Ranken, Douglas F. Le Brocq, Anne M. Gladstone, Rupert M. Payne, Antony J. Ng, Esmond G. Lipscomb, William H. |
author_sort |
Cornford, Stephen L. |
title |
Adaptive mesh, finite volume modeling of marine ice sheets |
title_short |
Adaptive mesh, finite volume modeling of marine ice sheets |
title_full |
Adaptive mesh, finite volume modeling of marine ice sheets |
title_fullStr |
Adaptive mesh, finite volume modeling of marine ice sheets |
title_full_unstemmed |
Adaptive mesh, finite volume modeling of marine ice sheets |
title_sort |
adaptive mesh, finite volume modeling of marine ice sheets |
publishDate |
2013 |
url |
https://hdl.handle.net/1983/1b2be4ab-54c2-425b-920f-df36115b83b4 https://research-information.bris.ac.uk/en/publications/1b2be4ab-54c2-425b-920f-df36115b83b4 https://doi.org/10.1016/j.jcp.2012.08.037 |
genre |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Ice Shelves Pine Island Pine Island Glacier West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Ice Shelves Pine Island Pine Island Glacier West Antarctica |
op_source |
Cornford , S L , Martin , D F , Graves , D T , Ranken , D F , Le Brocq , A M , Gladstone , R M , Payne , A J , Ng , E G & Lipscomb , W H 2013 , ' Adaptive mesh, finite volume modeling of marine ice sheets ' , Journal of Computational Physics , vol. 232 , no. 1 , pp. 529-549 . https://doi.org/10.1016/j.jcp.2012.08.037 |
op_relation |
https://research-information.bris.ac.uk/en/publications/1b2be4ab-54c2-425b-920f-df36115b83b4 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.jcp.2012.08.037 |
container_title |
Journal of Computational Physics |
container_volume |
232 |
container_issue |
1 |
container_start_page |
529 |
op_container_end_page |
549 |
_version_ |
1797573563335573504 |