Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow?
With a volume transport of similar to134 x 10(6) m(3)/s at the Drake Passage, the Antarctic Circumpolar Current (ACC) is the strongest ocean current. In the interest of estimating the secondary magnetic fields generated by the magnetohydrodynamic interaction of this flow with Earth's main field...
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ftpubman:oai:pure.mpg.de:item_995144 2023-08-27T04:05:02+02:00 Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow? Vivier, F. Maier-Reimer, E. Tyler, R. 2004-05-27 application/pdf http://hdl.handle.net/11858/00-001M-0000-0012-005C-C http://hdl.handle.net/11858/00-001M-0000-0012-005B-E eng eng info:eu-repo/semantics/altIdentifier/doi/10.1029/2004GL019804 http://hdl.handle.net/11858/00-001M-0000-0012-005C-C http://hdl.handle.net/11858/00-001M-0000-0012-005B-E info:eu-repo/semantics/openAccess Geophysical Research Letters info:eu-repo/semantics/article 2004 ftpubman https://doi.org/10.1029/2004GL019804 2023-08-02T01:34:53Z With a volume transport of similar to134 x 10(6) m(3)/s at the Drake Passage, the Antarctic Circumpolar Current (ACC) is the strongest ocean current. In the interest of estimating the secondary magnetic fields generated by the magnetohydrodynamic interaction of this flow with Earth's main field, we compare numerical results for the magnetic fields obtained using flow from three different ocean general circulation models. These simulations all expect detectable ocean signals in the magnetic records at ground and satellite altitude ( 400 km). The variability of this contribution is highly correlated with the ACC transport, a very important variable for climate studies. Observed magnetic fields could then be used, in principle, to derive an index of variability of the ACC. However given its small amplitude compared with other magnetic contributions, extracting the ocean's signal from observations remains a challenge at this time Article in Journal/Newspaper Antarc* Antarctic Drake Passage Max Planck Society: MPG.PuRe Antarctic The Antarctic Drake Passage Geophysical Research Letters 31 10 n/a n/a |
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Open Polar |
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Max Planck Society: MPG.PuRe |
op_collection_id |
ftpubman |
language |
English |
description |
With a volume transport of similar to134 x 10(6) m(3)/s at the Drake Passage, the Antarctic Circumpolar Current (ACC) is the strongest ocean current. In the interest of estimating the secondary magnetic fields generated by the magnetohydrodynamic interaction of this flow with Earth's main field, we compare numerical results for the magnetic fields obtained using flow from three different ocean general circulation models. These simulations all expect detectable ocean signals in the magnetic records at ground and satellite altitude ( 400 km). The variability of this contribution is highly correlated with the ACC transport, a very important variable for climate studies. Observed magnetic fields could then be used, in principle, to derive an index of variability of the ACC. However given its small amplitude compared with other magnetic contributions, extracting the ocean's signal from observations remains a challenge at this time |
format |
Article in Journal/Newspaper |
author |
Vivier, F. Maier-Reimer, E. Tyler, R. |
spellingShingle |
Vivier, F. Maier-Reimer, E. Tyler, R. Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow? |
author_facet |
Vivier, F. Maier-Reimer, E. Tyler, R. |
author_sort |
Vivier, F. |
title |
Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow? |
title_short |
Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow? |
title_full |
Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow? |
title_fullStr |
Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow? |
title_full_unstemmed |
Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow? |
title_sort |
simulations of magnetic fields generated by the antarctic circumpolar current at satellite altitude: can geomagnetic measurements be used to monitor the flow? |
publishDate |
2004 |
url |
http://hdl.handle.net/11858/00-001M-0000-0012-005C-C http://hdl.handle.net/11858/00-001M-0000-0012-005B-E |
geographic |
Antarctic The Antarctic Drake Passage |
geographic_facet |
Antarctic The Antarctic Drake Passage |
genre |
Antarc* Antarctic Drake Passage |
genre_facet |
Antarc* Antarctic Drake Passage |
op_source |
Geophysical Research Letters |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2004GL019804 http://hdl.handle.net/11858/00-001M-0000-0012-005C-C http://hdl.handle.net/11858/00-001M-0000-0012-005B-E |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2004GL019804 |
container_title |
Geophysical Research Letters |
container_volume |
31 |
container_issue |
10 |
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n/a |
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n/a |
_version_ |
1775355415377215488 |