Semi-brittle rheology and ice dynamics in DynEarthSol3D
Abstract. We present a semi-brittle rheology and explore its potential for simulating glacier and ice sheet deformation using a numerical model, DynEarthSol3D (DES), in simple, idealized experiments. DES is a finite-element solver for the dynamic and quasi-static simulation of continuous media. The...
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Online Access: | http://hdl.handle.net/10754/668536 https://doi.org/10.5194/tc-11-117-2017 |
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ftkingabdullahun:oai:repository.kaust.edu.sa:10754/668536 2024-01-07T09:43:58+01:00 Semi-brittle rheology and ice dynamics in DynEarthSol3D Logan, Liz C. Lavier, Luc L. Choi, Eunseo Tan, Eh Catania, Ginny A. Institute for Computational and Engineering Science, University of Texas, Austin, 78712, United States Department of Geological Science, University of Texas, Austin, 78712, United States Institute for Geophysics, University of Texas, Austin, 78758, United States Center for Earthquake Research and Information, University of Memphis, Memphis, 38152, United States Institute of Earth Sciences, Academia Sinica, No. 128, Section 2, Taipei, Taiwan 2017-01-17 http://hdl.handle.net/10754/668536 https://doi.org/10.5194/tc-11-117-2017 unknown Copernicus GmbH https://tc.copernicus.org/articles/11/117/2017/ Logan, L. C., Lavier, L. L., Choi, E., Tan, E., & Catania, G. A. (2017). Semi-brittle rheology and ice dynamics in DynEarthSol3D. The Cryosphere, 11(1), 117–132. doi:10.5194/tc-11-117-2017 doi:10.5194/tc-11-117-2017 2-s2.0-85010411574 1994-0424 1 The Cryosphere 117-132 http://hdl.handle.net/10754/668536 11 Archived with thanks to The Cryosphere https://creativecommons.org/licenses/by/3.0/ Article 2017 ftkingabdullahun https://doi.org/10.5194/tc-11-117-2017 2023-12-09T20:18:46Z Abstract. We present a semi-brittle rheology and explore its potential for simulating glacier and ice sheet deformation using a numerical model, DynEarthSol3D (DES), in simple, idealized experiments. DES is a finite-element solver for the dynamic and quasi-static simulation of continuous media. The experiments within demonstrate the potential for DES to simulate ice failure and deformation in dynamic regions of glaciers, especially at quickly changing boundaries like glacier termini in contact with the ocean. We explore the effect that different rheological assumptions have on the pattern of flow and failure. We find that the use of a semi-brittle constitutive law is a sufficient material condition to form the characteristic pattern of basal crevasse-aided pinch-and-swell geometry, which is observed globally in floating portions of ice and can often aid in eroding the ice sheet margins in direct contact with oceans. This work was funded by NSF grant ARC-0941678 and the King Abdullah University of Science and Technology. Article in Journal/Newspaper Ice Sheet The Cryosphere King Abdullah University of Science and Technology: KAUST Repository The Cryosphere 11 1 117 132 |
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Open Polar |
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King Abdullah University of Science and Technology: KAUST Repository |
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ftkingabdullahun |
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unknown |
description |
Abstract. We present a semi-brittle rheology and explore its potential for simulating glacier and ice sheet deformation using a numerical model, DynEarthSol3D (DES), in simple, idealized experiments. DES is a finite-element solver for the dynamic and quasi-static simulation of continuous media. The experiments within demonstrate the potential for DES to simulate ice failure and deformation in dynamic regions of glaciers, especially at quickly changing boundaries like glacier termini in contact with the ocean. We explore the effect that different rheological assumptions have on the pattern of flow and failure. We find that the use of a semi-brittle constitutive law is a sufficient material condition to form the characteristic pattern of basal crevasse-aided pinch-and-swell geometry, which is observed globally in floating portions of ice and can often aid in eroding the ice sheet margins in direct contact with oceans. This work was funded by NSF grant ARC-0941678 and the King Abdullah University of Science and Technology. |
author2 |
Institute for Computational and Engineering Science, University of Texas, Austin, 78712, United States Department of Geological Science, University of Texas, Austin, 78712, United States Institute for Geophysics, University of Texas, Austin, 78758, United States Center for Earthquake Research and Information, University of Memphis, Memphis, 38152, United States Institute of Earth Sciences, Academia Sinica, No. 128, Section 2, Taipei, Taiwan |
format |
Article in Journal/Newspaper |
author |
Logan, Liz C. Lavier, Luc L. Choi, Eunseo Tan, Eh Catania, Ginny A. |
spellingShingle |
Logan, Liz C. Lavier, Luc L. Choi, Eunseo Tan, Eh Catania, Ginny A. Semi-brittle rheology and ice dynamics in DynEarthSol3D |
author_facet |
Logan, Liz C. Lavier, Luc L. Choi, Eunseo Tan, Eh Catania, Ginny A. |
author_sort |
Logan, Liz C. |
title |
Semi-brittle rheology and ice dynamics in DynEarthSol3D |
title_short |
Semi-brittle rheology and ice dynamics in DynEarthSol3D |
title_full |
Semi-brittle rheology and ice dynamics in DynEarthSol3D |
title_fullStr |
Semi-brittle rheology and ice dynamics in DynEarthSol3D |
title_full_unstemmed |
Semi-brittle rheology and ice dynamics in DynEarthSol3D |
title_sort |
semi-brittle rheology and ice dynamics in dynearthsol3d |
publisher |
Copernicus GmbH |
publishDate |
2017 |
url |
http://hdl.handle.net/10754/668536 https://doi.org/10.5194/tc-11-117-2017 |
genre |
Ice Sheet The Cryosphere |
genre_facet |
Ice Sheet The Cryosphere |
op_relation |
https://tc.copernicus.org/articles/11/117/2017/ Logan, L. C., Lavier, L. L., Choi, E., Tan, E., & Catania, G. A. (2017). Semi-brittle rheology and ice dynamics in DynEarthSol3D. The Cryosphere, 11(1), 117–132. doi:10.5194/tc-11-117-2017 doi:10.5194/tc-11-117-2017 2-s2.0-85010411574 1994-0424 1 The Cryosphere 117-132 http://hdl.handle.net/10754/668536 11 |
op_rights |
Archived with thanks to The Cryosphere https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.5194/tc-11-117-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
1 |
container_start_page |
117 |
op_container_end_page |
132 |
_version_ |
1787425262059651072 |