Wave dispersion and dissipation in landfast ice: comparison of observations against models
Observations of wave dissipation and dispersion in sea ice are a necessity for the development and validation of wave–ice interaction models. As the composition of the ice layer can be extremely complex, most models treat the ice layer as a continuum with effective, rather than independently measura...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00059192 2024-09-15T17:40:53+00:00 Wave dispersion and dissipation in landfast ice: comparison of observations against models Voermans, Joey J. Liu, Qingxiang Marchenko, Aleksey Rabault, Jean Filchuk, Kirill Ryzhov, Ivan Heil, Petra Waseda, Takuji Nose, Takehiko Kodaira, Tsubasa Li, Jingkai Babanin, Alexander V. 2021-12 electronic https://doi.org/10.5194/tc-15-5557-2021 https://noa.gwlb.de/receive/cop_mods_00059192 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058800/tc-15-5557-2021.pdf https://tc.copernicus.org/articles/15/5557/2021/tc-15-5557-2021.pdf eng eng Copernicus Publications The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-15-5557-2021 https://noa.gwlb.de/receive/cop_mods_00059192 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058800/tc-15-5557-2021.pdf https://tc.copernicus.org/articles/15/5557/2021/tc-15-5557-2021.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2021 ftnonlinearchiv https://doi.org/10.5194/tc-15-5557-2021 2024-06-26T04:34:57Z Observations of wave dissipation and dispersion in sea ice are a necessity for the development and validation of wave–ice interaction models. As the composition of the ice layer can be extremely complex, most models treat the ice layer as a continuum with effective, rather than independently measurable, properties. While this provides opportunities to fit the model to observations, it also obscures our understanding of the wave–ice interactive processes; in particular, it hinders our ability to identify under which environmental conditions these processes are of significance. Here, we aimed to reduce the number of free variables available by studying wave dissipation in landfast ice. That is, in continuous sea ice, such as landfast ice, the effective properties of the continuum ice layer should revert to the material properties of the ice. We present observations of wave dispersion and dissipation from a field experiment on landfast ice in the Arctic and Antarctic. Independent laboratory measurements were performed on sea ice cores from a neighboring fjord in the Arctic to estimate the ice viscosity. Results show that the dispersion of waves in landfast ice is well described by theory of a thin elastic plate, and such observations could provide an estimate of the elastic modulus of the ice. Observations of wave dissipation in landfast ice are about an order of magnitude larger than in ice floes and broken ice. Comparison of our observations against models suggests that wave dissipation is attributed to the viscous dissipation within the ice layer for short waves only, whereas turbulence generated through the interactions between the ice and waves is the most likely process for the dissipation of wave energy for long periods. The separation between short and long waves in this context is expected to be determined by the ice thickness through its influence on the lengthening of short waves. Through the comparison of the estimated wave attenuation rates with distance from the landfast ice edge, our results suggest ... Article in Journal/Newspaper Antarc* Antarctic Sea ice The Cryosphere Niedersächsisches Online-Archiv NOA The Cryosphere 15 12 5557 5575 |
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article Verlagsveröffentlichung Voermans, Joey J. Liu, Qingxiang Marchenko, Aleksey Rabault, Jean Filchuk, Kirill Ryzhov, Ivan Heil, Petra Waseda, Takuji Nose, Takehiko Kodaira, Tsubasa Li, Jingkai Babanin, Alexander V. Wave dispersion and dissipation in landfast ice: comparison of observations against models |
topic_facet |
article Verlagsveröffentlichung |
description |
Observations of wave dissipation and dispersion in sea ice are a necessity for the development and validation of wave–ice interaction models. As the composition of the ice layer can be extremely complex, most models treat the ice layer as a continuum with effective, rather than independently measurable, properties. While this provides opportunities to fit the model to observations, it also obscures our understanding of the wave–ice interactive processes; in particular, it hinders our ability to identify under which environmental conditions these processes are of significance. Here, we aimed to reduce the number of free variables available by studying wave dissipation in landfast ice. That is, in continuous sea ice, such as landfast ice, the effective properties of the continuum ice layer should revert to the material properties of the ice. We present observations of wave dispersion and dissipation from a field experiment on landfast ice in the Arctic and Antarctic. Independent laboratory measurements were performed on sea ice cores from a neighboring fjord in the Arctic to estimate the ice viscosity. Results show that the dispersion of waves in landfast ice is well described by theory of a thin elastic plate, and such observations could provide an estimate of the elastic modulus of the ice. Observations of wave dissipation in landfast ice are about an order of magnitude larger than in ice floes and broken ice. Comparison of our observations against models suggests that wave dissipation is attributed to the viscous dissipation within the ice layer for short waves only, whereas turbulence generated through the interactions between the ice and waves is the most likely process for the dissipation of wave energy for long periods. The separation between short and long waves in this context is expected to be determined by the ice thickness through its influence on the lengthening of short waves. Through the comparison of the estimated wave attenuation rates with distance from the landfast ice edge, our results suggest ... |
format |
Article in Journal/Newspaper |
author |
Voermans, Joey J. Liu, Qingxiang Marchenko, Aleksey Rabault, Jean Filchuk, Kirill Ryzhov, Ivan Heil, Petra Waseda, Takuji Nose, Takehiko Kodaira, Tsubasa Li, Jingkai Babanin, Alexander V. |
author_facet |
Voermans, Joey J. Liu, Qingxiang Marchenko, Aleksey Rabault, Jean Filchuk, Kirill Ryzhov, Ivan Heil, Petra Waseda, Takuji Nose, Takehiko Kodaira, Tsubasa Li, Jingkai Babanin, Alexander V. |
author_sort |
Voermans, Joey J. |
title |
Wave dispersion and dissipation in landfast ice: comparison of observations against models |
title_short |
Wave dispersion and dissipation in landfast ice: comparison of observations against models |
title_full |
Wave dispersion and dissipation in landfast ice: comparison of observations against models |
title_fullStr |
Wave dispersion and dissipation in landfast ice: comparison of observations against models |
title_full_unstemmed |
Wave dispersion and dissipation in landfast ice: comparison of observations against models |
title_sort |
wave dispersion and dissipation in landfast ice: comparison of observations against models |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-5557-2021 https://noa.gwlb.de/receive/cop_mods_00059192 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058800/tc-15-5557-2021.pdf https://tc.copernicus.org/articles/15/5557/2021/tc-15-5557-2021.pdf |
genre |
Antarc* Antarctic Sea ice The Cryosphere |
genre_facet |
Antarc* Antarctic Sea ice The Cryosphere |
op_relation |
The Cryosphere -- ˜Theœ Cryosphere -- http://www.bibliothek.uni-regensburg.de/ezeit/?2393169 -- http://www.the-cryosphere.net/ -- 1994-0424 https://doi.org/10.5194/tc-15-5557-2021 https://noa.gwlb.de/receive/cop_mods_00059192 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00058800/tc-15-5557-2021.pdf https://tc.copernicus.org/articles/15/5557/2021/tc-15-5557-2021.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-15-5557-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
12 |
container_start_page |
5557 |
op_container_end_page |
5575 |
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1810486960315170816 |