Descent and Modification of the Overflow Plume in the Denmark Strait*
Bulk properties of the Denmark Strait overflow (DSO) plume observed in velocity and hydrography surveys undertaken in 1997 and 1998 are described. Despite the presence of considerable short-term variability, it is found that the pathway and evolution of the plume density anomaly are remarkably stead...
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ftoceanrep:oai:oceanrep.geomar.de:29768 2023-05-15T16:00:36+02:00 Descent and Modification of the Overflow Plume in the Denmark Strait* Girton, James B. Sanford, Thomas B. 2003 text https://oceanrep.geomar.de/id/eprint/29768/ https://oceanrep.geomar.de/id/eprint/29768/1/Girton03.pdf https://doi.org/10.1175/1520-0485(2003)033<1351:DAMOTO>2.0.CO;2 en eng AMS (American Meteorological Society) https://oceanrep.geomar.de/id/eprint/29768/1/Girton03.pdf Girton, J. B. and Sanford, T. B. (2003) Descent and Modification of the Overflow Plume in the Denmark Strait*. Open Access Journal of Physical Oceanography, 33 (7). pp. 1351-1364. DOI 10.1175/1520-0485(2003)033<1351:DAMOTO>2.0.CO;2 <https://doi.org/10.1175/1520-0485%282003%29033%3C1351%3ADAMOTO%3E2.0.CO%3B2>. doi:10.1175/1520-0485(2003)033<1351:DAMOTO>2.0.CO;2 cc_by_3.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2003 ftoceanrep https://doi.org/10.1175/1520-0485(2003)033<1351:DAMOTO>2.0.CO;2 2023-04-07T15:20:54Z Bulk properties of the Denmark Strait overflow (DSO) plume observed in velocity and hydrography surveys undertaken in 1997 and 1998 are described. Despite the presence of considerable short-term variability, it is found that the pathway and evolution of the plume density anomaly are remarkably steady. Bottom stress measurements show that the pathway of the plume core matches well with a rate of descent controlled by friction. The estimated entrainment rate diagnosed from the rate of plume dilution with distance shows a marked increase in entrainment at approximately 125 km from the sill, leading to a net dilution consistent with previous reports of a doubling of overflow transport measured by current meter arrays. The entrainment rate increase is likely related to the increased topographic slopes in the region, compounded by a decrease in interface stratification as the plume is diluted and enters a denser background. Article in Journal/Newspaper Denmark Strait OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Bulk properties of the Denmark Strait overflow (DSO) plume observed in velocity and hydrography surveys undertaken in 1997 and 1998 are described. Despite the presence of considerable short-term variability, it is found that the pathway and evolution of the plume density anomaly are remarkably steady. Bottom stress measurements show that the pathway of the plume core matches well with a rate of descent controlled by friction. The estimated entrainment rate diagnosed from the rate of plume dilution with distance shows a marked increase in entrainment at approximately 125 km from the sill, leading to a net dilution consistent with previous reports of a doubling of overflow transport measured by current meter arrays. The entrainment rate increase is likely related to the increased topographic slopes in the region, compounded by a decrease in interface stratification as the plume is diluted and enters a denser background. |
format |
Article in Journal/Newspaper |
author |
Girton, James B. Sanford, Thomas B. |
spellingShingle |
Girton, James B. Sanford, Thomas B. Descent and Modification of the Overflow Plume in the Denmark Strait* |
author_facet |
Girton, James B. Sanford, Thomas B. |
author_sort |
Girton, James B. |
title |
Descent and Modification of the Overflow Plume in the Denmark Strait* |
title_short |
Descent and Modification of the Overflow Plume in the Denmark Strait* |
title_full |
Descent and Modification of the Overflow Plume in the Denmark Strait* |
title_fullStr |
Descent and Modification of the Overflow Plume in the Denmark Strait* |
title_full_unstemmed |
Descent and Modification of the Overflow Plume in the Denmark Strait* |
title_sort |
descent and modification of the overflow plume in the denmark strait* |
publisher |
AMS (American Meteorological Society) |
publishDate |
2003 |
url |
https://oceanrep.geomar.de/id/eprint/29768/ https://oceanrep.geomar.de/id/eprint/29768/1/Girton03.pdf https://doi.org/10.1175/1520-0485(2003)033<1351:DAMOTO>2.0.CO;2 |
genre |
Denmark Strait |
genre_facet |
Denmark Strait |
op_relation |
https://oceanrep.geomar.de/id/eprint/29768/1/Girton03.pdf Girton, J. B. and Sanford, T. B. (2003) Descent and Modification of the Overflow Plume in the Denmark Strait*. Open Access Journal of Physical Oceanography, 33 (7). pp. 1351-1364. DOI 10.1175/1520-0485(2003)033<1351:DAMOTO>2.0.CO;2 <https://doi.org/10.1175/1520-0485%282003%29033%3C1351%3ADAMOTO%3E2.0.CO%3B2>. doi:10.1175/1520-0485(2003)033<1351:DAMOTO>2.0.CO;2 |
op_rights |
cc_by_3.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1175/1520-0485(2003)033<1351:DAMOTO>2.0.CO;2 |
_version_ |
1766396603103444992 |