Wave groups observed in pancake sea ice
Ocean surface waves propagating through sea ice are scattered and dissipated. The net attenuation occurs preferentially at the higher frequencies, and thus the spectral bandwidth of a given wave field is reduced, relative to open water. The reduction in bandwidth is associated with an increase in th...
Published in: | Journal of Geophysical Research: Oceans |
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Language: | English |
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American Geophysical Union (AGU)
2019
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ftarchimer:oai:archimer.ifremer.fr:69864 2023-05-15T15:01:32+02:00 Wave groups observed in pancake sea ice Thomson, Jim Gemmrich, Johannes Rogers, W. Erick Collins, Clarence O. Ardhuin, Fabrice 2019-11 application/pdf https://archimer.ifremer.fr/doc/00587/69864/67763.pdf https://archimer.ifremer.fr/doc/00587/69864/67766.pdf https://doi.org/10.1029/2019JC015354 https://archimer.ifremer.fr/doc/00587/69864/ eng eng American Geophysical Union (AGU) https://archimer.ifremer.fr/doc/00587/69864/67763.pdf https://archimer.ifremer.fr/doc/00587/69864/67766.pdf doi:10.1029/2019JC015354 https://archimer.ifremer.fr/doc/00587/69864/ info:eu-repo/semantics/openAccess restricted use Journal Of Geophysical Research-oceans (2169-9275) (American Geophysical Union (AGU)), 2019-11 , Vol. 124 , N. 11 , P. 7400-7411 text Publication info:eu-repo/semantics/article 2019 ftarchimer https://doi.org/10.1029/2019JC015354 2021-09-23T20:33:41Z Ocean surface waves propagating through sea ice are scattered and dissipated. The net attenuation occurs preferentially at the higher frequencies, and thus the spectral bandwidth of a given wave field is reduced, relative to open water. The reduction in bandwidth is associated with an increase in the groupiness of the wave field. Using SWIFT buoy data from the 2015 Arctic Sea State experiment, bandwidth is compared between pancake ice and open water conditions, and the linkage to group envelopes is explored. The enhancement of wave groups in ice is consistent with the simple linear mechanism of superposition of waves with narrowing spectral bandwidth. This is confirmed using synthetic data. Nonlinear mechanisms, which have been shown as significant in other ice types, are not found to be important in this data set. Article in Journal/Newspaper Arctic Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Arctic Pancake ENVELOPE(-55.815,-55.815,52.600,52.600) Journal of Geophysical Research: Oceans 124 11 7400 7411 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
Ocean surface waves propagating through sea ice are scattered and dissipated. The net attenuation occurs preferentially at the higher frequencies, and thus the spectral bandwidth of a given wave field is reduced, relative to open water. The reduction in bandwidth is associated with an increase in the groupiness of the wave field. Using SWIFT buoy data from the 2015 Arctic Sea State experiment, bandwidth is compared between pancake ice and open water conditions, and the linkage to group envelopes is explored. The enhancement of wave groups in ice is consistent with the simple linear mechanism of superposition of waves with narrowing spectral bandwidth. This is confirmed using synthetic data. Nonlinear mechanisms, which have been shown as significant in other ice types, are not found to be important in this data set. |
format |
Article in Journal/Newspaper |
author |
Thomson, Jim Gemmrich, Johannes Rogers, W. Erick Collins, Clarence O. Ardhuin, Fabrice |
spellingShingle |
Thomson, Jim Gemmrich, Johannes Rogers, W. Erick Collins, Clarence O. Ardhuin, Fabrice Wave groups observed in pancake sea ice |
author_facet |
Thomson, Jim Gemmrich, Johannes Rogers, W. Erick Collins, Clarence O. Ardhuin, Fabrice |
author_sort |
Thomson, Jim |
title |
Wave groups observed in pancake sea ice |
title_short |
Wave groups observed in pancake sea ice |
title_full |
Wave groups observed in pancake sea ice |
title_fullStr |
Wave groups observed in pancake sea ice |
title_full_unstemmed |
Wave groups observed in pancake sea ice |
title_sort |
wave groups observed in pancake sea ice |
publisher |
American Geophysical Union (AGU) |
publishDate |
2019 |
url |
https://archimer.ifremer.fr/doc/00587/69864/67763.pdf https://archimer.ifremer.fr/doc/00587/69864/67766.pdf https://doi.org/10.1029/2019JC015354 https://archimer.ifremer.fr/doc/00587/69864/ |
long_lat |
ENVELOPE(-55.815,-55.815,52.600,52.600) |
geographic |
Arctic Pancake |
geographic_facet |
Arctic Pancake |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Journal Of Geophysical Research-oceans (2169-9275) (American Geophysical Union (AGU)), 2019-11 , Vol. 124 , N. 11 , P. 7400-7411 |
op_relation |
https://archimer.ifremer.fr/doc/00587/69864/67763.pdf https://archimer.ifremer.fr/doc/00587/69864/67766.pdf doi:10.1029/2019JC015354 https://archimer.ifremer.fr/doc/00587/69864/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1029/2019JC015354 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
124 |
container_issue |
11 |
container_start_page |
7400 |
op_container_end_page |
7411 |
_version_ |
1766333551314206720 |