Monitoring Drake Passage with elephant seals: Frontal structures and snapshots of transport
Conductivity-temperature-pressure satellite relay data loggers (CTD-SRDLs) were attached to southern elephant seals (Mirounga leonina) on the island of South Georgia. During the animals' migration the CTD-SRDLs recorded and transmitted hydrographic profiles at a rate of approximately two profil...
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Language: | English |
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Online Access: | http://hdl.handle.net/1834/17134 https://doi.org/10.4319/lo.2008.53.5_part_2.2350 |
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ftoceandocs:oai:aquadocs.org:1834/17134 2024-06-09T07:40:42+00:00 Monitoring Drake Passage with elephant seals: Frontal structures and snapshots of transport Boehme, L. Thorpe, S. Biuw, M. Fedak, M. Meredith, M. 2008 pp.2350-2360 http://hdl.handle.net/1834/17134 https://doi.org/10.4319/lo.2008.53.5_part_2.2350 en eng https://doi.org/10.4319/lo.2008.53.5_part_2.2350 http://hdl.handle.net/1834/17134 Journal Contribution Refereed 2008 ftoceandocs https://doi.org/10.4319/lo.2008.53.5_part_2.2350 2024-05-15T08:02:16Z Conductivity-temperature-pressure satellite relay data loggers (CTD-SRDLs) were attached to southern elephant seals (Mirounga leonina) on the island of South Georgia. During the animals' migration the CTD-SRDLs recorded and transmitted hydrographic profiles at a rate of approximately two profiles per day to an average depth of about 547 m, representing transect-type sections with a spatial resolution of 16-47 km along the migratory routes of the seals. Two sections are used to clearly identify the locations of the Antarctic Circumpolar Current fronts across Drake Passage, providing in situ data complementary to satellite and other techniques. An empirical relationship between upper ocean temperature and baroclinic mass transport is used to determine the transport through Drake Passage at the times of the sections, and these transports are compared with estimates derived by other techniques. An absolute geostrophic velocity section across Drake Passage is calculated using CTD-SRDL data and data of absolute geostrophic surface velocities from altimetry. The mean total baroclinic transports in June 2004 and April 2005 are estimated to be 124 X 10(6) +/- 14 X 10(6) m(3) s(-1) and 112 X 10(6) +/- 14 X 10(6) m(3) s(-1) respectively. Published Book Antarc* Antarctic Drake Passage Elephant Seals Mirounga leonina Southern Elephant Seals IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Antarctic Drake Passage The Antarctic Limnology and Oceanography 53 5part2 2350 2360 |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
description |
Conductivity-temperature-pressure satellite relay data loggers (CTD-SRDLs) were attached to southern elephant seals (Mirounga leonina) on the island of South Georgia. During the animals' migration the CTD-SRDLs recorded and transmitted hydrographic profiles at a rate of approximately two profiles per day to an average depth of about 547 m, representing transect-type sections with a spatial resolution of 16-47 km along the migratory routes of the seals. Two sections are used to clearly identify the locations of the Antarctic Circumpolar Current fronts across Drake Passage, providing in situ data complementary to satellite and other techniques. An empirical relationship between upper ocean temperature and baroclinic mass transport is used to determine the transport through Drake Passage at the times of the sections, and these transports are compared with estimates derived by other techniques. An absolute geostrophic velocity section across Drake Passage is calculated using CTD-SRDL data and data of absolute geostrophic surface velocities from altimetry. The mean total baroclinic transports in June 2004 and April 2005 are estimated to be 124 X 10(6) +/- 14 X 10(6) m(3) s(-1) and 112 X 10(6) +/- 14 X 10(6) m(3) s(-1) respectively. Published |
format |
Book |
author |
Boehme, L. Thorpe, S. Biuw, M. Fedak, M. Meredith, M. |
spellingShingle |
Boehme, L. Thorpe, S. Biuw, M. Fedak, M. Meredith, M. Monitoring Drake Passage with elephant seals: Frontal structures and snapshots of transport |
author_facet |
Boehme, L. Thorpe, S. Biuw, M. Fedak, M. Meredith, M. |
author_sort |
Boehme, L. |
title |
Monitoring Drake Passage with elephant seals: Frontal structures and snapshots of transport |
title_short |
Monitoring Drake Passage with elephant seals: Frontal structures and snapshots of transport |
title_full |
Monitoring Drake Passage with elephant seals: Frontal structures and snapshots of transport |
title_fullStr |
Monitoring Drake Passage with elephant seals: Frontal structures and snapshots of transport |
title_full_unstemmed |
Monitoring Drake Passage with elephant seals: Frontal structures and snapshots of transport |
title_sort |
monitoring drake passage with elephant seals: frontal structures and snapshots of transport |
publishDate |
2008 |
url |
http://hdl.handle.net/1834/17134 https://doi.org/10.4319/lo.2008.53.5_part_2.2350 |
geographic |
Antarctic Drake Passage The Antarctic |
geographic_facet |
Antarctic Drake Passage The Antarctic |
genre |
Antarc* Antarctic Drake Passage Elephant Seals Mirounga leonina Southern Elephant Seals |
genre_facet |
Antarc* Antarctic Drake Passage Elephant Seals Mirounga leonina Southern Elephant Seals |
op_relation |
https://doi.org/10.4319/lo.2008.53.5_part_2.2350 http://hdl.handle.net/1834/17134 |
op_doi |
https://doi.org/10.4319/lo.2008.53.5_part_2.2350 |
container_title |
Limnology and Oceanography |
container_volume |
53 |
container_issue |
5part2 |
container_start_page |
2350 |
op_container_end_page |
2360 |
_version_ |
1801369111591124992 |