Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica
Data from a hydrographic survey located in the Princess Elizabeth Trough, near the Antarctic continent (63-65 ° S, 85 ° E) are presented and discussed. This region is covered by sea-ice for most of the year with the ice-edge retreating to the southern edge of the Trough during summer. Water samples...
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1995
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:75242 2023-05-15T13:57:24+02:00 Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica Frew, Russell D. Heywood, Karen J. Dennis, Paul F. 1995-04 https://ueaeprints.uea.ac.uk/id/eprint/75242/ https://doi.org/10.1016/0304-4203(95)00003-A unknown Frew, Russell D., Heywood, Karen J. and Dennis, Paul F. (1995) Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica. Marine Chemistry, 49 (2-3). pp. 141-153. ISSN 0304-4203 doi:10.1016/0304-4203(95)00003-A Article PeerReviewed 1995 ftuniveastangl https://doi.org/10.1016/0304-4203(95)00003-A 2023-03-23T23:32:36Z Data from a hydrographic survey located in the Princess Elizabeth Trough, near the Antarctic continent (63-65 ° S, 85 ° E) are presented and discussed. This region is covered by sea-ice for most of the year with the ice-edge retreating to the southern edge of the Trough during summer. Water samples were collected during the Austral summer, February 1993, to determine the ratio of the oxygen-18 to oxygen-16 isotope, δ18O. Four water bodies are characterised by their temperature, salinity and δ18O properties, Surface Water (0.0-1.2 ° C, 33.1-34.0, -0.39‰), Winter Water (-1.7 ° C, 34.4, -0.39‰), Warm Deep Water (2.0 ° C, 34.69, 0.02‰) and Bottom Water (-0.43 ° C, 34.669, -0.25‰). The Bottom Water is warmer, saltier and heavier isotopically than Weddell Sea Bottom Water (-0.9 ° C, 34.65, -0.29‰); and has T-S properties close to that of classical Antarctic Bottom Water (-0.4 ° C, 34.66). This Bottom Water is isotopically distinct from the Weddell Sea derived Bottom Water that ventilates the Indian ocean through the Kerguelen-Crozet gap. A mechanism for local formation of the Bottom Water involving freezing of Surface Water and entrainment of Warm Deep Water is described. Article in Journal/Newspaper Antarc* Antarctic Antarctica Sea ice Weddell Sea University of East Anglia: UEA Digital Repository Antarctic The Antarctic Weddell Sea Austral Kerguelen Indian Weddell Princess Elizabeth Trough ENVELOPE(83.000,83.000,-64.167,-64.167) Marine Chemistry 49 2-3 141 153 |
institution |
Open Polar |
collection |
University of East Anglia: UEA Digital Repository |
op_collection_id |
ftuniveastangl |
language |
unknown |
description |
Data from a hydrographic survey located in the Princess Elizabeth Trough, near the Antarctic continent (63-65 ° S, 85 ° E) are presented and discussed. This region is covered by sea-ice for most of the year with the ice-edge retreating to the southern edge of the Trough during summer. Water samples were collected during the Austral summer, February 1993, to determine the ratio of the oxygen-18 to oxygen-16 isotope, δ18O. Four water bodies are characterised by their temperature, salinity and δ18O properties, Surface Water (0.0-1.2 ° C, 33.1-34.0, -0.39‰), Winter Water (-1.7 ° C, 34.4, -0.39‰), Warm Deep Water (2.0 ° C, 34.69, 0.02‰) and Bottom Water (-0.43 ° C, 34.669, -0.25‰). The Bottom Water is warmer, saltier and heavier isotopically than Weddell Sea Bottom Water (-0.9 ° C, 34.65, -0.29‰); and has T-S properties close to that of classical Antarctic Bottom Water (-0.4 ° C, 34.66). This Bottom Water is isotopically distinct from the Weddell Sea derived Bottom Water that ventilates the Indian ocean through the Kerguelen-Crozet gap. A mechanism for local formation of the Bottom Water involving freezing of Surface Water and entrainment of Warm Deep Water is described. |
format |
Article in Journal/Newspaper |
author |
Frew, Russell D. Heywood, Karen J. Dennis, Paul F. |
spellingShingle |
Frew, Russell D. Heywood, Karen J. Dennis, Paul F. Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica |
author_facet |
Frew, Russell D. Heywood, Karen J. Dennis, Paul F. |
author_sort |
Frew, Russell D. |
title |
Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica |
title_short |
Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica |
title_full |
Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica |
title_fullStr |
Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica |
title_full_unstemmed |
Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica |
title_sort |
oxygen isotope study of water masses in the princess elizabeth trough, antarctica |
publishDate |
1995 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/75242/ https://doi.org/10.1016/0304-4203(95)00003-A |
long_lat |
ENVELOPE(83.000,83.000,-64.167,-64.167) |
geographic |
Antarctic The Antarctic Weddell Sea Austral Kerguelen Indian Weddell Princess Elizabeth Trough |
geographic_facet |
Antarctic The Antarctic Weddell Sea Austral Kerguelen Indian Weddell Princess Elizabeth Trough |
genre |
Antarc* Antarctic Antarctica Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Sea ice Weddell Sea |
op_relation |
Frew, Russell D., Heywood, Karen J. and Dennis, Paul F. (1995) Oxygen isotope study of water masses in the Princess Elizabeth Trough, Antarctica. Marine Chemistry, 49 (2-3). pp. 141-153. ISSN 0304-4203 doi:10.1016/0304-4203(95)00003-A |
op_doi |
https://doi.org/10.1016/0304-4203(95)00003-A |
container_title |
Marine Chemistry |
container_volume |
49 |
container_issue |
2-3 |
container_start_page |
141 |
op_container_end_page |
153 |
_version_ |
1766265086682333184 |