Discrete eddies in the northern North Atlantic as observed by looping RAFOS floats
Author Posting. © The Authors, 2004. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Deep Sea Research Part II: Topical Studies in Oceanography 52 (2005): 627-650, doi:10...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/929 2023-05-15T16:51:51+02:00 Discrete eddies in the northern North Atlantic as observed by looping RAFOS floats Shoosmith, Deborah R. Richardson, Philip L. Bower, Amy S. Rossby, H. Thomas 2004-10-29 7177368 bytes application/pdf https://hdl.handle.net/1912/929 en_US eng https://doi.org/10.1016/j.dsr2.2004.12.011 https://hdl.handle.net/1912/929 Preprint 2004 ftwhoas https://doi.org/10.1016/j.dsr2.2004.12.011 2022-05-28T22:57:03Z Author Posting. © The Authors, 2004. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Deep Sea Research Part II: Topical Studies in Oceanography 52 (2005): 627-650, doi:10.1016/j.dsr2.2004.12.011. RAFOS float trajectories near the 27.5 density level were analyzed to investigate discrete eddies in the northern North Atlantic with the objective of determining their geographical distribution and characteristics. Floats that made two or more consecutive loops in the same direction (loopers) were considered to have been in an eddy. Overall 15% (24 float years) of the float data were in loopers. One hundred and eight loopers were identified in 96 different eddies. Roughly half of the eddies were cyclonic (49%) and half were anticyclonic (51%), although the percentages varied in different regions. A few eddies were quasi-stationary for long times, one for over a year in the Iceland Basin, and many others clearly translated, often in the direction of the general circulation as observed by non-looping floats. Several floats were trapped in eddies in the vicinity of the North Atlantic Current just upstream (west) of the Charlie Gibbs (52ºN) and Faraday (50ºN) Fracture Zones, which seem to be preferred routes for flow crossing the mid-Atlantic ridge. Five floats looped in four anticyclones which translated southwestward away from the eastern boundary near the Goban Spur (47ºN-50ºN). These could have been weak meddies forming from remnants of warm salty Mediterranean Water advected northward along the eastern boundary. Funds for this research were provided by National Science Foundation grants OCE-9531877 to WHOI and OCE-9906775 to URI. This work was also supported by a grant from the WHOI Associates. Report Iceland north atlantic current North Atlantic Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Faraday ENVELOPE(-64.256,-64.256,-65.246,-65.246) Mid-Atlantic Ridge Deep Sea Research Part II: Topical Studies in Oceanography 52 3-4 627 650 |
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Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
description |
Author Posting. © The Authors, 2004. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in Deep Sea Research Part II: Topical Studies in Oceanography 52 (2005): 627-650, doi:10.1016/j.dsr2.2004.12.011. RAFOS float trajectories near the 27.5 density level were analyzed to investigate discrete eddies in the northern North Atlantic with the objective of determining their geographical distribution and characteristics. Floats that made two or more consecutive loops in the same direction (loopers) were considered to have been in an eddy. Overall 15% (24 float years) of the float data were in loopers. One hundred and eight loopers were identified in 96 different eddies. Roughly half of the eddies were cyclonic (49%) and half were anticyclonic (51%), although the percentages varied in different regions. A few eddies were quasi-stationary for long times, one for over a year in the Iceland Basin, and many others clearly translated, often in the direction of the general circulation as observed by non-looping floats. Several floats were trapped in eddies in the vicinity of the North Atlantic Current just upstream (west) of the Charlie Gibbs (52ºN) and Faraday (50ºN) Fracture Zones, which seem to be preferred routes for flow crossing the mid-Atlantic ridge. Five floats looped in four anticyclones which translated southwestward away from the eastern boundary near the Goban Spur (47ºN-50ºN). These could have been weak meddies forming from remnants of warm salty Mediterranean Water advected northward along the eastern boundary. Funds for this research were provided by National Science Foundation grants OCE-9531877 to WHOI and OCE-9906775 to URI. This work was also supported by a grant from the WHOI Associates. |
format |
Report |
author |
Shoosmith, Deborah R. Richardson, Philip L. Bower, Amy S. Rossby, H. Thomas |
spellingShingle |
Shoosmith, Deborah R. Richardson, Philip L. Bower, Amy S. Rossby, H. Thomas Discrete eddies in the northern North Atlantic as observed by looping RAFOS floats |
author_facet |
Shoosmith, Deborah R. Richardson, Philip L. Bower, Amy S. Rossby, H. Thomas |
author_sort |
Shoosmith, Deborah R. |
title |
Discrete eddies in the northern North Atlantic as observed by looping RAFOS floats |
title_short |
Discrete eddies in the northern North Atlantic as observed by looping RAFOS floats |
title_full |
Discrete eddies in the northern North Atlantic as observed by looping RAFOS floats |
title_fullStr |
Discrete eddies in the northern North Atlantic as observed by looping RAFOS floats |
title_full_unstemmed |
Discrete eddies in the northern North Atlantic as observed by looping RAFOS floats |
title_sort |
discrete eddies in the northern north atlantic as observed by looping rafos floats |
publishDate |
2004 |
url |
https://hdl.handle.net/1912/929 |
long_lat |
ENVELOPE(-64.256,-64.256,-65.246,-65.246) |
geographic |
Faraday Mid-Atlantic Ridge |
geographic_facet |
Faraday Mid-Atlantic Ridge |
genre |
Iceland north atlantic current North Atlantic |
genre_facet |
Iceland north atlantic current North Atlantic |
op_relation |
https://doi.org/10.1016/j.dsr2.2004.12.011 https://hdl.handle.net/1912/929 |
op_doi |
https://doi.org/10.1016/j.dsr2.2004.12.011 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
52 |
container_issue |
3-4 |
container_start_page |
627 |
op_container_end_page |
650 |
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1766041969219338240 |