Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean
Hydrographic data of temperature, salinity, oxygen, nitrate, phosphate, and silicate at 81 stations with 435 samples on 3 sections between the Azores, the Grand Banks of Newfoundland, and the Bermuda Islands are used to determine the mixing of water masses by optimum multiparameter analysis over the...
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Language: | English |
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AGU (American Geophysical Union)
1993
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ftoceanrep:oai:oceanrep.geomar.de:42147 2023-05-15T17:06:11+02:00 Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean Hinrichsen, Hans-Harald Tomczak, Matthias 1993 text https://oceanrep.geomar.de/id/eprint/42147/ https://oceanrep.geomar.de/id/eprint/42147/1/Journal%20of%20Geophysical%20Research,%20Vo.%2098,%20No.%20C6,%20pp.%2010,155-10,169,%201993.pdf https://doi.org/10.1029/93JC00180 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/42147/1/Journal%20of%20Geophysical%20Research,%20Vo.%2098,%20No.%20C6,%20pp.%2010,155-10,169,%201993.pdf Hinrichsen, H. H. and Tomczak, M. (1993) Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean. Open Access Journal of Geophysical Research: Oceans, 98 (C6). p. 10155. DOI 10.1029/93JC00180 <https://doi.org/10.1029/93JC00180>. doi:10.1029/93JC00180 info:eu-repo/semantics/openAccess Article PeerReviewed 1993 ftoceanrep https://doi.org/10.1029/93JC00180 2023-04-07T15:38:36Z Hydrographic data of temperature, salinity, oxygen, nitrate, phosphate, and silicate at 81 stations with 435 samples on 3 sections between the Azores, the Grand Banks of Newfoundland, and the Bermuda Islands are used to determine the mixing of water masses by optimum multiparameter analysis over the depth range 100–1500 m. The method optimally utilizes all information from our hydrographic data set by solving an overdetermined set of linear mixing equations for all parameters using the method of least squares residuals. It is shown that the method gives quantitative information on the influence of the various water masses of the western North Atlantic. The Gulf Stream and the North Atlantic Current appear as broad bands transporting large amounts of Western North Atlantic Central Water at their warm flank. Western Subarctic Intermediate Water and Shelf Water supplied by the Labrador Current and containing significant amounts of Labrador Current Water are found on their inshore side. The area of the Azores front is found in the vicinity of the Comer Seamounts, where the uniform water mass distribution of the Sargasso Sea changes into a more complex structure that reflects the influence of water masses originating in the Labrador Sea. Small-scale structures, like eddies or Gulf Stream rings, are also detectable by this analysis method. Comparison with dynamic height analysis supports the circulation pattern of the North Atlantic Current as a continuation of the Gulf Stream, and of the southeastward flowing Azores Current originating in the area of the Southeast Newfoundland Rise. Article in Journal/Newspaper Labrador Sea Newfoundland north atlantic current North Atlantic Subarctic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Newfoundland Journal of Geophysical Research 98 C6 10155 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Hydrographic data of temperature, salinity, oxygen, nitrate, phosphate, and silicate at 81 stations with 435 samples on 3 sections between the Azores, the Grand Banks of Newfoundland, and the Bermuda Islands are used to determine the mixing of water masses by optimum multiparameter analysis over the depth range 100–1500 m. The method optimally utilizes all information from our hydrographic data set by solving an overdetermined set of linear mixing equations for all parameters using the method of least squares residuals. It is shown that the method gives quantitative information on the influence of the various water masses of the western North Atlantic. The Gulf Stream and the North Atlantic Current appear as broad bands transporting large amounts of Western North Atlantic Central Water at their warm flank. Western Subarctic Intermediate Water and Shelf Water supplied by the Labrador Current and containing significant amounts of Labrador Current Water are found on their inshore side. The area of the Azores front is found in the vicinity of the Comer Seamounts, where the uniform water mass distribution of the Sargasso Sea changes into a more complex structure that reflects the influence of water masses originating in the Labrador Sea. Small-scale structures, like eddies or Gulf Stream rings, are also detectable by this analysis method. Comparison with dynamic height analysis supports the circulation pattern of the North Atlantic Current as a continuation of the Gulf Stream, and of the southeastward flowing Azores Current originating in the area of the Southeast Newfoundland Rise. |
format |
Article in Journal/Newspaper |
author |
Hinrichsen, Hans-Harald Tomczak, Matthias |
spellingShingle |
Hinrichsen, Hans-Harald Tomczak, Matthias Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean |
author_facet |
Hinrichsen, Hans-Harald Tomczak, Matthias |
author_sort |
Hinrichsen, Hans-Harald |
title |
Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean |
title_short |
Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean |
title_full |
Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean |
title_fullStr |
Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean |
title_full_unstemmed |
Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean |
title_sort |
optimum multiparameter analysis of the water mass structure in the western north atlantic ocean |
publisher |
AGU (American Geophysical Union) |
publishDate |
1993 |
url |
https://oceanrep.geomar.de/id/eprint/42147/ https://oceanrep.geomar.de/id/eprint/42147/1/Journal%20of%20Geophysical%20Research,%20Vo.%2098,%20No.%20C6,%20pp.%2010,155-10,169,%201993.pdf https://doi.org/10.1029/93JC00180 |
geographic |
Newfoundland |
geographic_facet |
Newfoundland |
genre |
Labrador Sea Newfoundland north atlantic current North Atlantic Subarctic |
genre_facet |
Labrador Sea Newfoundland north atlantic current North Atlantic Subarctic |
op_relation |
https://oceanrep.geomar.de/id/eprint/42147/1/Journal%20of%20Geophysical%20Research,%20Vo.%2098,%20No.%20C6,%20pp.%2010,155-10,169,%201993.pdf Hinrichsen, H. H. and Tomczak, M. (1993) Optimum multiparameter analysis of the water mass structure in the western North Atlantic Ocean. Open Access Journal of Geophysical Research: Oceans, 98 (C6). p. 10155. DOI 10.1029/93JC00180 <https://doi.org/10.1029/93JC00180>. doi:10.1029/93JC00180 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/93JC00180 |
container_title |
Journal of Geophysical Research |
container_volume |
98 |
container_issue |
C6 |
container_start_page |
10155 |
_version_ |
1766061213804920832 |