Hydrographic observations from the Weddell Sea during the Norwegian Antarctic Research Expedition 1976/77
CTD observations from the southern Weddell Sea in 1977 show that Ice Shelf Water originating under the floating Filchner Ice Shelf overtlows at the sill of the Filchner Depression and can be identified on the continental slope at more than 2000m depth. Intrusions of Weddell Deep Water upon the shelf...
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Norwegian Polar Institute
1985
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ftjpolarres:oai:journals.openacademia.net:article/2524 2023-05-15T14:01:21+02:00 Hydrographic observations from the Weddell Sea during the Norwegian Antarctic Research Expedition 1976/77 Foldvik, Arne Gammelsrød, Tor Tørresen, Tor 1985-01-12 application/pdf https://polarresearch.net/index.php/polar/article/view/2524 https://doi.org/10.3402/polar.v3i2.6951 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2524/5775 https://polarresearch.net/index.php/polar/article/view/2524 doi:10.3402/polar.v3i2.6951 Copyright (c) 2018 Polar Research Polar Research; Vol. 3 No. 2 (1985); 177-193 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1985 ftjpolarres https://doi.org/10.3402/polar.v3i2.6951 2021-11-11T19:12:57Z CTD observations from the southern Weddell Sea in 1977 show that Ice Shelf Water originating under the floating Filchner Ice Shelf overtlows at the sill of the Filchner Depression and can be identified on the continental slope at more than 2000m depth. Intrusions of Weddell Deep Water upon the shelf are especially noticeable in the region of dense shelf water outflow and are possibly driven by the outflow. Anomalous low core temperature of Weddell Deep Water is probably related to winter convection in the Weddell Polynya. Anomalous CTD stations at the periphery of the 1976 winter polynya region indicate that deep convection phenomena, as reported by Gordon (1978), are perhaps quite common. The observations indicate that double diffusive convection is important for vertical heat transport in the central Weddell Sea. Article in Journal/Newspaper Antarc* Antarctic Ice Shelf Polar Research Weddell Sea Polar Research (E-Journal) Antarctic Weddell Sea Weddell Filchner Ice Shelf ENVELOPE(-40.000,-40.000,-79.000,-79.000) Polar Research 3 2 177 193 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
CTD observations from the southern Weddell Sea in 1977 show that Ice Shelf Water originating under the floating Filchner Ice Shelf overtlows at the sill of the Filchner Depression and can be identified on the continental slope at more than 2000m depth. Intrusions of Weddell Deep Water upon the shelf are especially noticeable in the region of dense shelf water outflow and are possibly driven by the outflow. Anomalous low core temperature of Weddell Deep Water is probably related to winter convection in the Weddell Polynya. Anomalous CTD stations at the periphery of the 1976 winter polynya region indicate that deep convection phenomena, as reported by Gordon (1978), are perhaps quite common. The observations indicate that double diffusive convection is important for vertical heat transport in the central Weddell Sea. |
format |
Article in Journal/Newspaper |
author |
Foldvik, Arne Gammelsrød, Tor Tørresen, Tor |
spellingShingle |
Foldvik, Arne Gammelsrød, Tor Tørresen, Tor Hydrographic observations from the Weddell Sea during the Norwegian Antarctic Research Expedition 1976/77 |
author_facet |
Foldvik, Arne Gammelsrød, Tor Tørresen, Tor |
author_sort |
Foldvik, Arne |
title |
Hydrographic observations from the Weddell Sea during the Norwegian Antarctic Research Expedition 1976/77 |
title_short |
Hydrographic observations from the Weddell Sea during the Norwegian Antarctic Research Expedition 1976/77 |
title_full |
Hydrographic observations from the Weddell Sea during the Norwegian Antarctic Research Expedition 1976/77 |
title_fullStr |
Hydrographic observations from the Weddell Sea during the Norwegian Antarctic Research Expedition 1976/77 |
title_full_unstemmed |
Hydrographic observations from the Weddell Sea during the Norwegian Antarctic Research Expedition 1976/77 |
title_sort |
hydrographic observations from the weddell sea during the norwegian antarctic research expedition 1976/77 |
publisher |
Norwegian Polar Institute |
publishDate |
1985 |
url |
https://polarresearch.net/index.php/polar/article/view/2524 https://doi.org/10.3402/polar.v3i2.6951 |
long_lat |
ENVELOPE(-40.000,-40.000,-79.000,-79.000) |
geographic |
Antarctic Weddell Sea Weddell Filchner Ice Shelf |
geographic_facet |
Antarctic Weddell Sea Weddell Filchner Ice Shelf |
genre |
Antarc* Antarctic Ice Shelf Polar Research Weddell Sea |
genre_facet |
Antarc* Antarctic Ice Shelf Polar Research Weddell Sea |
op_source |
Polar Research; Vol. 3 No. 2 (1985); 177-193 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2524/5775 https://polarresearch.net/index.php/polar/article/view/2524 doi:10.3402/polar.v3i2.6951 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v3i2.6951 |
container_title |
Polar Research |
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3 |
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2 |
container_start_page |
177 |
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193 |
_version_ |
1766271085525860352 |