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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fttriple:oai:gotriple.eu:10670/1.whatof 2023-05-15T15:01:41+02:00 Wave groups observed in pancake sea ice Thomson, Jim Gemmrich, Johannes Rogers, W. Erick Collins, Clarence O. Ardhuin, Fabrice https://doi.org/10.1029/2019JC015354 https://archimer.ifremer.fr/doc/00587/69864/67763.pdf https://archimer.ifremer.fr/doc/00587/69864/67766.pdf https://archimer.ifremer.fr/doc/00587/69864/ en eng American Geophysical Union (AGU) doi:10.1029/2019JC015354 10670/1.whatof https://archimer.ifremer.fr/doc/00587/69864/67763.pdf https://archimer.ifremer.fr/doc/00587/69864/67766.pdf https://archimer.ifremer.fr/doc/00587/69864/ other Archimer, archive institutionnelle de l'Ifremer Journal Of Geophysical Research-oceans (2169-9275) (American Geophysical Union (AGU)), 2019-11 , Vol. 124 , N. 11 , P. 7400-7411 geo envir Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.1029/2019JC015354 2023-01-22T16:47:24Z 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. Text Arctic Sea ice Unknown Arctic Pancake ENVELOPE(-55.815,-55.815,52.600,52.600) Journal of Geophysical Research: Oceans 124 11 7400 7411 |
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English |
topic |
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geo envir Thomson, Jim Gemmrich, Johannes Rogers, W. Erick Collins, Clarence O. Ardhuin, Fabrice Wave groups observed in pancake sea ice |
topic_facet |
geo envir |
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 |
Text |
author |
Thomson, Jim Gemmrich, Johannes Rogers, W. Erick Collins, Clarence O. Ardhuin, Fabrice |
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) |
url |
https://doi.org/10.1029/2019JC015354 https://archimer.ifremer.fr/doc/00587/69864/67763.pdf https://archimer.ifremer.fr/doc/00587/69864/67766.pdf 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 |
Archimer, archive institutionnelle de l'Ifremer Journal Of Geophysical Research-oceans (2169-9275) (American Geophysical Union (AGU)), 2019-11 , Vol. 124 , N. 11 , P. 7400-7411 |
op_relation |
doi:10.1029/2019JC015354 10670/1.whatof https://archimer.ifremer.fr/doc/00587/69864/67763.pdf https://archimer.ifremer.fr/doc/00587/69864/67766.pdf https://archimer.ifremer.fr/doc/00587/69864/ |
op_rights |
other |
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 |
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1766333689436831744 |