Detecting changes in Labrador Sea Water through a water mass analysis of BATS data
International audience A new water mass analysis technique is used to analyse the BATS oceanographic data set in the Sargasso Sea of 1988-1998 for changes in Labrador Sea Water (LSW) properties. The technique is based on a sequential quadratic programming method and requires careful definition of co...
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ftinsu:oai:HAL:hal-00298449v1 2023-11-12T04:20:31+01:00 Detecting changes in Labrador Sea Water through a water mass analysis of BATS data Henry-Edwards, A. Tomczak, M. School of Chemistry Physics and Earth Sciences Adelaide Flinders University of South Australia 2005-08-30 https://hal.science/hal-00298449 https://hal.science/hal-00298449/document https://hal.science/hal-00298449/file/osd-2-417-2005.pdf en eng HAL CCSD European Geosciences Union hal-00298449 https://hal.science/hal-00298449 https://hal.science/hal-00298449/document https://hal.science/hal-00298449/file/osd-2-417-2005.pdf info:eu-repo/semantics/OpenAccess ISSN: 1812-0806 EISSN: 1812-0822 Ocean Science Discussions https://hal.science/hal-00298449 Ocean Science Discussions, 2005, 2 (4), pp.417-435 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2005 ftinsu 2023-10-25T16:28:01Z International audience A new water mass analysis technique is used to analyse the BATS oceanographic data set in the Sargasso Sea of 1988-1998 for changes in Labrador Sea Water (LSW) properties. The technique is based on a sequential quadratic programming method and requires careful definition of constraints to produce reliable results. Variations in LSW temperature and salinity observed in the Labrador Sea are used to define the constraints. It is shown that to minimize the residuals while matching the observed temperature and salinity changes in the source region the nitrate concentration in the Labrador Sea has to be allowed to vary as well. It is concluded that during the period of investigation nitrate underwent significant variations in the Labrador Sea. Article in Journal/Newspaper Labrador Sea Institut national des sciences de l'Univers: HAL-INSU |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Henry-Edwards, A. Tomczak, M. Detecting changes in Labrador Sea Water through a water mass analysis of BATS data |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience A new water mass analysis technique is used to analyse the BATS oceanographic data set in the Sargasso Sea of 1988-1998 for changes in Labrador Sea Water (LSW) properties. The technique is based on a sequential quadratic programming method and requires careful definition of constraints to produce reliable results. Variations in LSW temperature and salinity observed in the Labrador Sea are used to define the constraints. It is shown that to minimize the residuals while matching the observed temperature and salinity changes in the source region the nitrate concentration in the Labrador Sea has to be allowed to vary as well. It is concluded that during the period of investigation nitrate underwent significant variations in the Labrador Sea. |
author2 |
School of Chemistry Physics and Earth Sciences Adelaide Flinders University of South Australia |
format |
Article in Journal/Newspaper |
author |
Henry-Edwards, A. Tomczak, M. |
author_facet |
Henry-Edwards, A. Tomczak, M. |
author_sort |
Henry-Edwards, A. |
title |
Detecting changes in Labrador Sea Water through a water mass analysis of BATS data |
title_short |
Detecting changes in Labrador Sea Water through a water mass analysis of BATS data |
title_full |
Detecting changes in Labrador Sea Water through a water mass analysis of BATS data |
title_fullStr |
Detecting changes in Labrador Sea Water through a water mass analysis of BATS data |
title_full_unstemmed |
Detecting changes in Labrador Sea Water through a water mass analysis of BATS data |
title_sort |
detecting changes in labrador sea water through a water mass analysis of bats data |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00298449 https://hal.science/hal-00298449/document https://hal.science/hal-00298449/file/osd-2-417-2005.pdf |
genre |
Labrador Sea |
genre_facet |
Labrador Sea |
op_source |
ISSN: 1812-0806 EISSN: 1812-0822 Ocean Science Discussions https://hal.science/hal-00298449 Ocean Science Discussions, 2005, 2 (4), pp.417-435 |
op_relation |
hal-00298449 https://hal.science/hal-00298449 https://hal.science/hal-00298449/document https://hal.science/hal-00298449/file/osd-2-417-2005.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782336423783825408 |