Wave–ice interactions in the neXtSIM sea-ice model
International audience In this paper we describe a waves-in-ice model (WIM), which calculates ice breakage and the wave radiation stress (WRS). This WIM is then coupled to the new sea-ice model neXtSIM, which is based on the elasto-brittle (EB) rheology. We highlight some numerical issues involved i...
Published in: | The Cryosphere |
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ftccsdartic:oai:HAL:hal-03405840v1 2023-05-15T18:18:12+02:00 Wave–ice interactions in the neXtSIM sea-ice model Williams, Timothy, Rampal, Pierre Bouillon, Sylvain Nansen Environmental and Remote Sensing Center Bergen (NERSC) 2017 https://hal.univ-grenoble-alpes.fr/hal-03405840 https://hal.univ-grenoble-alpes.fr/hal-03405840/document https://hal.univ-grenoble-alpes.fr/hal-03405840/file/Williams2017The_Cryosphere.pdf https://doi.org/10.5194/tc-11-2117-2017 en eng HAL CCSD Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-11-2117-2017 hal-03405840 https://hal.univ-grenoble-alpes.fr/hal-03405840 https://hal.univ-grenoble-alpes.fr/hal-03405840/document https://hal.univ-grenoble-alpes.fr/hal-03405840/file/Williams2017The_Cryosphere.pdf doi:10.5194/tc-11-2117-2017 info:eu-repo/semantics/OpenAccess ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.univ-grenoble-alpes.fr/hal-03405840 The Cryosphere, Copernicus 2017, 11 (5), pp.2117 - 2135. ⟨10.5194/tc-11-2117-2017⟩ [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2017 ftccsdartic https://doi.org/10.5194/tc-11-2117-2017 2021-11-06T23:27:34Z International audience In this paper we describe a waves-in-ice model (WIM), which calculates ice breakage and the wave radiation stress (WRS). This WIM is then coupled to the new sea-ice model neXtSIM, which is based on the elasto-brittle (EB) rheology. We highlight some numerical issues involved in the coupling and investigate the impact of the WRS, and of modifying the EB rheology to lower the stiffness of the ice in the area where the ice has broken up (the marginal ice zone or MIZ). In experiments in the absence of wind, we find that wind waves can produce noticeable movement of the ice edge in loose ice (concentration around 70 %)-up to 36 km, depending on the material parameters of the ice that are used and the dynamical model used for the broken ice. The ice edge position is unaffected by the WRS if the initial concentration is higher (0.9). Swell waves (monochromatic waves with low frequency) do not affect the ice edge location (even for loose ice), as they are attenuated much less than the higher-frequency components of a wind wave spectrum, and so consequently produce a much lower WRS (by about an order of magnitude at least). In the presence of wind, we find that the wind stress dominates the WRS, which, while large near the ice edge, decays exponentially away from it. This is in contrast to the wind stress, which is applied over a much larger ice area. In this case (when wind is present) the dynamical model for the MIZ has more impact than the WRS, although that effect too is relatively modest. When the stiffness in the MIZ is lowered due to ice breakage, we find that on-ice winds produce more compression in the MIZ than in the pack, while office winds can cause the MIZ to be separated from the pack ice. Article in Journal/Newspaper Sea ice The Cryosphere Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) The Cryosphere 11 5 2117 2135 |
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Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Williams, Timothy, Rampal, Pierre Bouillon, Sylvain Wave–ice interactions in the neXtSIM sea-ice model |
topic_facet |
[SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience In this paper we describe a waves-in-ice model (WIM), which calculates ice breakage and the wave radiation stress (WRS). This WIM is then coupled to the new sea-ice model neXtSIM, which is based on the elasto-brittle (EB) rheology. We highlight some numerical issues involved in the coupling and investigate the impact of the WRS, and of modifying the EB rheology to lower the stiffness of the ice in the area where the ice has broken up (the marginal ice zone or MIZ). In experiments in the absence of wind, we find that wind waves can produce noticeable movement of the ice edge in loose ice (concentration around 70 %)-up to 36 km, depending on the material parameters of the ice that are used and the dynamical model used for the broken ice. The ice edge position is unaffected by the WRS if the initial concentration is higher (0.9). Swell waves (monochromatic waves with low frequency) do not affect the ice edge location (even for loose ice), as they are attenuated much less than the higher-frequency components of a wind wave spectrum, and so consequently produce a much lower WRS (by about an order of magnitude at least). In the presence of wind, we find that the wind stress dominates the WRS, which, while large near the ice edge, decays exponentially away from it. This is in contrast to the wind stress, which is applied over a much larger ice area. In this case (when wind is present) the dynamical model for the MIZ has more impact than the WRS, although that effect too is relatively modest. When the stiffness in the MIZ is lowered due to ice breakage, we find that on-ice winds produce more compression in the MIZ than in the pack, while office winds can cause the MIZ to be separated from the pack ice. |
author2 |
Nansen Environmental and Remote Sensing Center Bergen (NERSC) |
format |
Article in Journal/Newspaper |
author |
Williams, Timothy, Rampal, Pierre Bouillon, Sylvain |
author_facet |
Williams, Timothy, Rampal, Pierre Bouillon, Sylvain |
author_sort |
Williams, Timothy, |
title |
Wave–ice interactions in the neXtSIM sea-ice model |
title_short |
Wave–ice interactions in the neXtSIM sea-ice model |
title_full |
Wave–ice interactions in the neXtSIM sea-ice model |
title_fullStr |
Wave–ice interactions in the neXtSIM sea-ice model |
title_full_unstemmed |
Wave–ice interactions in the neXtSIM sea-ice model |
title_sort |
wave–ice interactions in the nextsim sea-ice model |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.univ-grenoble-alpes.fr/hal-03405840 https://hal.univ-grenoble-alpes.fr/hal-03405840/document https://hal.univ-grenoble-alpes.fr/hal-03405840/file/Williams2017The_Cryosphere.pdf https://doi.org/10.5194/tc-11-2117-2017 |
genre |
Sea ice The Cryosphere |
genre_facet |
Sea ice The Cryosphere |
op_source |
ISSN: 1994-0424 EISSN: 1994-0416 The Cryosphere https://hal.univ-grenoble-alpes.fr/hal-03405840 The Cryosphere, Copernicus 2017, 11 (5), pp.2117 - 2135. ⟨10.5194/tc-11-2117-2017⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-11-2117-2017 hal-03405840 https://hal.univ-grenoble-alpes.fr/hal-03405840 https://hal.univ-grenoble-alpes.fr/hal-03405840/document https://hal.univ-grenoble-alpes.fr/hal-03405840/file/Williams2017The_Cryosphere.pdf doi:10.5194/tc-11-2117-2017 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/tc-11-2117-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
5 |
container_start_page |
2117 |
op_container_end_page |
2135 |
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1766194682273988608 |