Calibrated Seismic Imaging of Eddy-Dominated Warm-Water Transport Across the Bellingshausen Sea, Southern Ocean ...
AbstractSeismic reflection images of thermohaline circulation from the Bellingshausen Sea, adjacent to the West Antarctica Peninsula, were acquired during February 2015. This survey shows that bright reflectivity occurs throughout the upper 300 m. By calibrating these seismic images with coeval hydr...
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Online Access: | https://dx.doi.org/10.17863/cam.24608 https://www.repository.cam.ac.uk/handle/1810/277319 |
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ftdatacite:10.17863/cam.24608 2024-02-04T09:52:33+01:00 Calibrated Seismic Imaging of Eddy-Dominated Warm-Water Transport Across the Bellingshausen Sea, Southern Ocean ... Gunn, KL White, NJ Larter, RD Caulfield, CP 2018 https://dx.doi.org/10.17863/cam.24608 https://www.repository.cam.ac.uk/handle/1810/277319 en eng American Geophysical Union (AGU) seismic oceanography Bellingshausen Sea warm-core eddies ice-shelf basal melt Antarctic Slope Front Article ScholarlyArticle JournalArticle article-journal 2018 ftdatacite https://doi.org/10.17863/cam.24608 2024-01-05T16:32:48Z AbstractSeismic reflection images of thermohaline circulation from the Bellingshausen Sea, adjacent to the West Antarctica Peninsula, were acquired during February 2015. This survey shows that bright reflectivity occurs throughout the upper 300 m. By calibrating these seismic images with coeval hydrographic measurements, intrusion of warm water features onto the continental shelf at Marguerite and Belgica Troughs is identified and characterized. These features have distinctive lens‐shaped patterns of reflectivity with lengths of 0.75–11.00 km and thicknesses of 100–150 m, suggesting that they are small mesoscale to submesoscale eddies. Abundant eddies are observed along a transect that crosses Belgica Trough. Near Alexander Island Drift, a large, of order km 3 , bowl‐like feature, that may represent an anticyclonic Taylor column, is imaged on a pair of orthogonal images. A modified iterative procedure is used to convert seismic imagery into maps of temperature that enable the number and size of eddies being ... Article in Journal/Newspaper Alexander Island Antarc* Antarctic Antarctica Bellingshausen Sea Ice Shelf Southern Ocean West Antarctica DataCite Metadata Store (German National Library of Science and Technology) Antarctic Southern Ocean West Antarctica Bellingshausen Sea Marguerite ENVELOPE(141.378,141.378,-66.787,-66.787) Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
seismic oceanography Bellingshausen Sea warm-core eddies ice-shelf basal melt Antarctic Slope Front |
spellingShingle |
seismic oceanography Bellingshausen Sea warm-core eddies ice-shelf basal melt Antarctic Slope Front Gunn, KL White, NJ Larter, RD Caulfield, CP Calibrated Seismic Imaging of Eddy-Dominated Warm-Water Transport Across the Bellingshausen Sea, Southern Ocean ... |
topic_facet |
seismic oceanography Bellingshausen Sea warm-core eddies ice-shelf basal melt Antarctic Slope Front |
description |
AbstractSeismic reflection images of thermohaline circulation from the Bellingshausen Sea, adjacent to the West Antarctica Peninsula, were acquired during February 2015. This survey shows that bright reflectivity occurs throughout the upper 300 m. By calibrating these seismic images with coeval hydrographic measurements, intrusion of warm water features onto the continental shelf at Marguerite and Belgica Troughs is identified and characterized. These features have distinctive lens‐shaped patterns of reflectivity with lengths of 0.75–11.00 km and thicknesses of 100–150 m, suggesting that they are small mesoscale to submesoscale eddies. Abundant eddies are observed along a transect that crosses Belgica Trough. Near Alexander Island Drift, a large, of order km 3 , bowl‐like feature, that may represent an anticyclonic Taylor column, is imaged on a pair of orthogonal images. A modified iterative procedure is used to convert seismic imagery into maps of temperature that enable the number and size of eddies being ... |
format |
Article in Journal/Newspaper |
author |
Gunn, KL White, NJ Larter, RD Caulfield, CP |
author_facet |
Gunn, KL White, NJ Larter, RD Caulfield, CP |
author_sort |
Gunn, KL |
title |
Calibrated Seismic Imaging of Eddy-Dominated Warm-Water Transport Across the Bellingshausen Sea, Southern Ocean ... |
title_short |
Calibrated Seismic Imaging of Eddy-Dominated Warm-Water Transport Across the Bellingshausen Sea, Southern Ocean ... |
title_full |
Calibrated Seismic Imaging of Eddy-Dominated Warm-Water Transport Across the Bellingshausen Sea, Southern Ocean ... |
title_fullStr |
Calibrated Seismic Imaging of Eddy-Dominated Warm-Water Transport Across the Bellingshausen Sea, Southern Ocean ... |
title_full_unstemmed |
Calibrated Seismic Imaging of Eddy-Dominated Warm-Water Transport Across the Bellingshausen Sea, Southern Ocean ... |
title_sort |
calibrated seismic imaging of eddy-dominated warm-water transport across the bellingshausen sea, southern ocean ... |
publisher |
American Geophysical Union (AGU) |
publishDate |
2018 |
url |
https://dx.doi.org/10.17863/cam.24608 https://www.repository.cam.ac.uk/handle/1810/277319 |
long_lat |
ENVELOPE(141.378,141.378,-66.787,-66.787) ENVELOPE(-69.895,-69.895,-71.287,-71.287) |
geographic |
Antarctic Southern Ocean West Antarctica Bellingshausen Sea Marguerite Alexander Island |
geographic_facet |
Antarctic Southern Ocean West Antarctica Bellingshausen Sea Marguerite Alexander Island |
genre |
Alexander Island Antarc* Antarctic Antarctica Bellingshausen Sea Ice Shelf Southern Ocean West Antarctica |
genre_facet |
Alexander Island Antarc* Antarctic Antarctica Bellingshausen Sea Ice Shelf Southern Ocean West Antarctica |
op_doi |
https://doi.org/10.17863/cam.24608 |
_version_ |
1789959757462765568 |