Characterizing and following eddies in Drake Passage
Abstract — Drake Passage, the gap between South America and Antarctica, is a very energetic region, with strong currents and numerous eddies. These eddies are important for mixing waters across the main three fronts, and for affecting the biological productivity in the region. We use weekly maps of...
Main Authors: | , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4469 http://eprints.soton.ac.uk/46522/1/IGARSS_2007_DrakeP.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.660.4469 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.660.4469 2023-05-15T13:38:01+02:00 Characterizing and following eddies in Drake Passage Gómez-enri J Navarro G Quartly G. D Villares P The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4469 http://eprints.soton.ac.uk/46522/1/IGARSS_2007_DrakeP.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4469 http://eprints.soton.ac.uk/46522/1/IGARSS_2007_DrakeP.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://eprints.soton.ac.uk/46522/1/IGARSS_2007_DrakeP.pdf text ftciteseerx 2016-01-08T16:51:04Z Abstract — Drake Passage, the gap between South America and Antarctica, is a very energetic region, with strong currents and numerous eddies. These eddies are important for mixing waters across the main three fronts, and for affecting the biological productivity in the region. We use weekly maps of color images, sea level anomaly and geostrophic velocities to characterize physical and biological activity in the region surrounding Drake Passage. In particular, we note that the largest eddy kinetic energy occurs to the east of the passage and is principally in the area bounded by the mean Subantarctic Front (SAF) and the mean Polar Front, whilst the biological productivity is highest in coastal regions, with the SAF acting as a clear southern boundary. In a number of cases, cyclonic eddies detected by altimetry also show a strong signature in ocean color. Regular XBT (eXpendable BathyThermograph) surveys provide information on sub-surface structure, confirming the altimetric identification of features and showing that they often contain water masses originating from the other side of the front. Keywords-component; eddies; altimetry; sea level anomaly chlorophyll concentration, XBT, Drake Passage I. Text Antarc* Antarctica Drake Passage Unknown Drake Passage |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
Abstract — Drake Passage, the gap between South America and Antarctica, is a very energetic region, with strong currents and numerous eddies. These eddies are important for mixing waters across the main three fronts, and for affecting the biological productivity in the region. We use weekly maps of color images, sea level anomaly and geostrophic velocities to characterize physical and biological activity in the region surrounding Drake Passage. In particular, we note that the largest eddy kinetic energy occurs to the east of the passage and is principally in the area bounded by the mean Subantarctic Front (SAF) and the mean Polar Front, whilst the biological productivity is highest in coastal regions, with the SAF acting as a clear southern boundary. In a number of cases, cyclonic eddies detected by altimetry also show a strong signature in ocean color. Regular XBT (eXpendable BathyThermograph) surveys provide information on sub-surface structure, confirming the altimetric identification of features and showing that they often contain water masses originating from the other side of the front. Keywords-component; eddies; altimetry; sea level anomaly chlorophyll concentration, XBT, Drake Passage I. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Gómez-enri J Navarro G Quartly G. D Villares P |
spellingShingle |
Gómez-enri J Navarro G Quartly G. D Villares P Characterizing and following eddies in Drake Passage |
author_facet |
Gómez-enri J Navarro G Quartly G. D Villares P |
author_sort |
Gómez-enri J |
title |
Characterizing and following eddies in Drake Passage |
title_short |
Characterizing and following eddies in Drake Passage |
title_full |
Characterizing and following eddies in Drake Passage |
title_fullStr |
Characterizing and following eddies in Drake Passage |
title_full_unstemmed |
Characterizing and following eddies in Drake Passage |
title_sort |
characterizing and following eddies in drake passage |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4469 http://eprints.soton.ac.uk/46522/1/IGARSS_2007_DrakeP.pdf |
geographic |
Drake Passage |
geographic_facet |
Drake Passage |
genre |
Antarc* Antarctica Drake Passage |
genre_facet |
Antarc* Antarctica Drake Passage |
op_source |
http://eprints.soton.ac.uk/46522/1/IGARSS_2007_DrakeP.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.660.4469 http://eprints.soton.ac.uk/46522/1/IGARSS_2007_DrakeP.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766100634548830208 |