The general circulation of the western subtropical North Atlantic observed using profiling floats
The general circulation of the subtropical western North Atlantic is described using hydrography and subsurface velocity measured simultaneously by 71 profiling floats during the period July 1997 to December 2002. Subsurface trajectories of the floats revealed a strong topographic influence and dept...
Published in: | Journal of Geophysical Research |
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Format: | Article in Journal/Newspaper |
Language: | English |
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American Geophysical Union
2005
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-005-189 https://doi.org/10.1029/2005JC002909 |
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ftncar:oai:drupal-site.org:articles_7454 2023-07-30T04:05:05+02:00 The general circulation of the western subtropical North Atlantic observed using profiling floats Kwon, Young-Oh (author) Riser, Stephen (author) 2005-10-14 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-005-189 https://doi.org/10.1029/2005JC002909 en eng American Geophysical Union Journal of Geophysical Research-Oceans http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-005-189 doi:10.1029/2005JC002909 ark:/85065/d78w3dn6 Copyright 2005 American Geophysical Union. Text article 2005 ftncar https://doi.org/10.1029/2005JC002909 2023-07-17T18:27:05Z The general circulation of the subtropical western North Atlantic is described using hydrography and subsurface velocity measured simultaneously by 71 profiling floats during the period July 1997 to December 2002. Subsurface trajectories of the floats revealed a strong topographic influence and depth-dependence of the Gulf Stream, its recirculation gyres, and the North Atlantic Current. We discuss eddy-like and nonsteady flows in several subregions, especially near the major topographic features. The seasonal cycle of volume transport, estimated using the absolute geostrophic velocity in the upper 900 m, was shown to be a maximum in winter and minimum in summer. The eddy kinetic energy and eddy diffusivity, derived from the float data and mapped over the subtopical gyre, show seasonal variability in the vicinity of the Gulf Stream with a maximum in spring and minimum in winter for both quantities. Article in Journal/Newspaper north atlantic current North Atlantic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Journal of Geophysical Research 110 C10 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
The general circulation of the subtropical western North Atlantic is described using hydrography and subsurface velocity measured simultaneously by 71 profiling floats during the period July 1997 to December 2002. Subsurface trajectories of the floats revealed a strong topographic influence and depth-dependence of the Gulf Stream, its recirculation gyres, and the North Atlantic Current. We discuss eddy-like and nonsteady flows in several subregions, especially near the major topographic features. The seasonal cycle of volume transport, estimated using the absolute geostrophic velocity in the upper 900 m, was shown to be a maximum in winter and minimum in summer. The eddy kinetic energy and eddy diffusivity, derived from the float data and mapped over the subtopical gyre, show seasonal variability in the vicinity of the Gulf Stream with a maximum in spring and minimum in winter for both quantities. |
author2 |
Kwon, Young-Oh (author) Riser, Stephen (author) |
format |
Article in Journal/Newspaper |
title |
The general circulation of the western subtropical North Atlantic observed using profiling floats |
spellingShingle |
The general circulation of the western subtropical North Atlantic observed using profiling floats |
title_short |
The general circulation of the western subtropical North Atlantic observed using profiling floats |
title_full |
The general circulation of the western subtropical North Atlantic observed using profiling floats |
title_fullStr |
The general circulation of the western subtropical North Atlantic observed using profiling floats |
title_full_unstemmed |
The general circulation of the western subtropical North Atlantic observed using profiling floats |
title_sort |
general circulation of the western subtropical north atlantic observed using profiling floats |
publisher |
American Geophysical Union |
publishDate |
2005 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-005-189 https://doi.org/10.1029/2005JC002909 |
genre |
north atlantic current North Atlantic |
genre_facet |
north atlantic current North Atlantic |
op_relation |
Journal of Geophysical Research-Oceans http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-005-189 doi:10.1029/2005JC002909 ark:/85065/d78w3dn6 |
op_rights |
Copyright 2005 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2005JC002909 |
container_title |
Journal of Geophysical Research |
container_volume |
110 |
container_issue |
C10 |
_version_ |
1772816802914500608 |