Response of Total and Eddy Kinetic Energy to the recent spin up of the Beaufort Gyre
The Beaufort Gyre in the Arctic Ocean has spun up over the past two decades in response to changes of the wind forcing and sea ice conditions, accumulating a significant amount of freshwater. Here a simulation performed with a high-resolution, eddy resolving model is analyzed in order to provide a d...
Published in: | Journal of Physical Oceanography |
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Language: | English |
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American Meteorological Society
2020
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ftarchimer:oai:archimer.ifremer.fr:71015 2023-05-15T14:51:38+02:00 Response of Total and Eddy Kinetic Energy to the recent spin up of the Beaufort Gyre Regan, Heather Lique, Camille Talandier, Claude Meneghello, Gianluca 2020-03 application/pdf https://archimer.ifremer.fr/doc/00598/71015/69288.pdf https://doi.org/10.1175/JPO-D-19-0234.1 https://archimer.ifremer.fr/doc/00598/71015/ eng eng American Meteorological Society https://archimer.ifremer.fr/doc/00598/71015/69288.pdf doi:10.1175/JPO-D-19-0234.1 https://archimer.ifremer.fr/doc/00598/71015/ info:eu-repo/semantics/openAccess restricted use Journal Of Physical Oceanography (0022-3670) (American Meteorological Society), 2020-03 , Vol. 50 , N. 3 , P. 575-594 Ocean Arctic Eddies Ocean dynamics Ocean models text Publication info:eu-repo/semantics/article 2020 ftarchimer https://doi.org/10.1175/JPO-D-19-0234.1 2021-09-23T20:34:09Z The Beaufort Gyre in the Arctic Ocean has spun up over the past two decades in response to changes of the wind forcing and sea ice conditions, accumulating a significant amount of freshwater. Here a simulation performed with a high-resolution, eddy resolving model is analyzed in order to provide a detailed description of the total and eddy kinetic energy, and their response to this spin up of the gyre. On average, and in contrast to the typical open ocean conditions, the levels of mean and eddy kinetic energy are of the same order of magnitude, and the eddy kinetic energy is only intensified along the boundary and in the subsurface. In response to the strong anomalous atmospheric conditions in 2007, the gyre spins up and the mean kinetic energy almost doubles, while the eddy kinetic energy does not increase significantly for a long time period. This is because the isopycnals are able to flatten and the gyre expands outwards, reducing the potential for baroclinic instability. These results have implications for understanding the mechanisms at play for equilibrating the Beaufort Gyre and the variability and future changes of the Arctic freshwater system. Article in Journal/Newspaper Arctic Arctic Ocean Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Arctic Arctic Ocean Journal of Physical Oceanography 50 3 575 594 |
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 |
topic |
Ocean Arctic Eddies Ocean dynamics Ocean models |
spellingShingle |
Ocean Arctic Eddies Ocean dynamics Ocean models Regan, Heather Lique, Camille Talandier, Claude Meneghello, Gianluca Response of Total and Eddy Kinetic Energy to the recent spin up of the Beaufort Gyre |
topic_facet |
Ocean Arctic Eddies Ocean dynamics Ocean models |
description |
The Beaufort Gyre in the Arctic Ocean has spun up over the past two decades in response to changes of the wind forcing and sea ice conditions, accumulating a significant amount of freshwater. Here a simulation performed with a high-resolution, eddy resolving model is analyzed in order to provide a detailed description of the total and eddy kinetic energy, and their response to this spin up of the gyre. On average, and in contrast to the typical open ocean conditions, the levels of mean and eddy kinetic energy are of the same order of magnitude, and the eddy kinetic energy is only intensified along the boundary and in the subsurface. In response to the strong anomalous atmospheric conditions in 2007, the gyre spins up and the mean kinetic energy almost doubles, while the eddy kinetic energy does not increase significantly for a long time period. This is because the isopycnals are able to flatten and the gyre expands outwards, reducing the potential for baroclinic instability. These results have implications for understanding the mechanisms at play for equilibrating the Beaufort Gyre and the variability and future changes of the Arctic freshwater system. |
format |
Article in Journal/Newspaper |
author |
Regan, Heather Lique, Camille Talandier, Claude Meneghello, Gianluca |
author_facet |
Regan, Heather Lique, Camille Talandier, Claude Meneghello, Gianluca |
author_sort |
Regan, Heather |
title |
Response of Total and Eddy Kinetic Energy to the recent spin up of the Beaufort Gyre |
title_short |
Response of Total and Eddy Kinetic Energy to the recent spin up of the Beaufort Gyre |
title_full |
Response of Total and Eddy Kinetic Energy to the recent spin up of the Beaufort Gyre |
title_fullStr |
Response of Total and Eddy Kinetic Energy to the recent spin up of the Beaufort Gyre |
title_full_unstemmed |
Response of Total and Eddy Kinetic Energy to the recent spin up of the Beaufort Gyre |
title_sort |
response of total and eddy kinetic energy to the recent spin up of the beaufort gyre |
publisher |
American Meteorological Society |
publishDate |
2020 |
url |
https://archimer.ifremer.fr/doc/00598/71015/69288.pdf https://doi.org/10.1175/JPO-D-19-0234.1 https://archimer.ifremer.fr/doc/00598/71015/ |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_source |
Journal Of Physical Oceanography (0022-3670) (American Meteorological Society), 2020-03 , Vol. 50 , N. 3 , P. 575-594 |
op_relation |
https://archimer.ifremer.fr/doc/00598/71015/69288.pdf doi:10.1175/JPO-D-19-0234.1 https://archimer.ifremer.fr/doc/00598/71015/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1175/JPO-D-19-0234.1 |
container_title |
Journal of Physical Oceanography |
container_volume |
50 |
container_issue |
3 |
container_start_page |
575 |
op_container_end_page |
594 |
_version_ |
1766322768268230656 |