Labrador Sea Water exported through Flemish Pass: Hydrographic trends and transport variability inducing processes
This study investigates the deep flow through the 1200 m deep Flemish Pass, located at the western subpolar margin, constrained by the Grand Banks and the underwater plateau Flemish Cap. In addition to the Deep Western Boundary Current (DWBC) pathway offshore of Flemish Cap, Flemish Pass represents...
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Language: | English |
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Universität Bremen
2017
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Online Access: | https://media.suub.uni-bremen.de/handle/elib/1267 https://nbn-resolving.org/urn:nbn:de:gbv:46-00106030-18 |
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ftsubbremen:oai:media.suub.uni-bremen.de:Publications/elib/1267 2023-05-15T17:06:03+02:00 Labrador Sea Water exported through Flemish Pass: Hydrographic trends and transport variability inducing processes Labradorseewasser-Export durch die Flämische Passage: Hydrographische Trends und Transportvariabilität verursachende Prozesse Sanguineti, Linn Kieke, Dagmar Kanzow, Torsten 2017-07-06 application/pdf https://media.suub.uni-bremen.de/handle/elib/1267 https://nbn-resolving.org/urn:nbn:de:gbv:46-00106030-18 eng eng Universität Bremen FB1 Physik/Elektrotechnik https://media.suub.uni-bremen.de/handle/elib/1267 urn:nbn:de:gbv:46-00106030-18 info:eu-repo/semantics/openAccess Oceanography Flemish Pass Labrador Sea Water hydrographic variability transport variability topographic Rossby waves 530 530 Physics ddc:530 Dissertation doctoralThesis 2017 ftsubbremen 2022-11-09T07:09:33Z This study investigates the deep flow through the 1200 m deep Flemish Pass, located at the western subpolar margin, constrained by the Grand Banks and the underwater plateau Flemish Cap. In addition to the Deep Western Boundary Current (DWBC) pathway offshore of Flemish Cap, Flemish Pass represents another southward export pathway for Labrador Sea Water (LSW), a main component of the climate modulating Atlantic Meridional Overturning Circulation. Hydrographic measurements show a significant warming of 0.3 degree/decade and a salinification of 0.03/decade of the Upper LSW in Flemish Pass between 1993 and 2013. Ship-based velocity measurements between 2009 and 2013 in Flemish Pass and in the DWBC east of Flemish Cap revealed a considerable southward transport of Upper LSW through Flemish Pass (15 - 27%). Mooring based transport time series revealed an average southward LSW transport of -1.9 Sv (-1.4 Sv) and a range of -3.5 Sv to 0.7 Sv (-5 Sv to 3 Sv) in Flemish Pass in 2012 - 2013 (2013 - 2014). The dominant LSW transport variability was observed on intra-seasonal time scales of 20 - 50 days and related to topographic Rossby waves trapped at the western slope of Flemish Pass. Doctoral or Postdoctoral Thesis Labrador Sea Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
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Open Polar |
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Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
op_collection_id |
ftsubbremen |
language |
English |
topic |
Oceanography Flemish Pass Labrador Sea Water hydrographic variability transport variability topographic Rossby waves 530 530 Physics ddc:530 |
spellingShingle |
Oceanography Flemish Pass Labrador Sea Water hydrographic variability transport variability topographic Rossby waves 530 530 Physics ddc:530 Sanguineti, Linn Labrador Sea Water exported through Flemish Pass: Hydrographic trends and transport variability inducing processes |
topic_facet |
Oceanography Flemish Pass Labrador Sea Water hydrographic variability transport variability topographic Rossby waves 530 530 Physics ddc:530 |
description |
This study investigates the deep flow through the 1200 m deep Flemish Pass, located at the western subpolar margin, constrained by the Grand Banks and the underwater plateau Flemish Cap. In addition to the Deep Western Boundary Current (DWBC) pathway offshore of Flemish Cap, Flemish Pass represents another southward export pathway for Labrador Sea Water (LSW), a main component of the climate modulating Atlantic Meridional Overturning Circulation. Hydrographic measurements show a significant warming of 0.3 degree/decade and a salinification of 0.03/decade of the Upper LSW in Flemish Pass between 1993 and 2013. Ship-based velocity measurements between 2009 and 2013 in Flemish Pass and in the DWBC east of Flemish Cap revealed a considerable southward transport of Upper LSW through Flemish Pass (15 - 27%). Mooring based transport time series revealed an average southward LSW transport of -1.9 Sv (-1.4 Sv) and a range of -3.5 Sv to 0.7 Sv (-5 Sv to 3 Sv) in Flemish Pass in 2012 - 2013 (2013 - 2014). The dominant LSW transport variability was observed on intra-seasonal time scales of 20 - 50 days and related to topographic Rossby waves trapped at the western slope of Flemish Pass. |
author2 |
Kieke, Dagmar Kanzow, Torsten |
format |
Doctoral or Postdoctoral Thesis |
author |
Sanguineti, Linn |
author_facet |
Sanguineti, Linn |
author_sort |
Sanguineti, Linn |
title |
Labrador Sea Water exported through Flemish Pass: Hydrographic trends and transport variability inducing processes |
title_short |
Labrador Sea Water exported through Flemish Pass: Hydrographic trends and transport variability inducing processes |
title_full |
Labrador Sea Water exported through Flemish Pass: Hydrographic trends and transport variability inducing processes |
title_fullStr |
Labrador Sea Water exported through Flemish Pass: Hydrographic trends and transport variability inducing processes |
title_full_unstemmed |
Labrador Sea Water exported through Flemish Pass: Hydrographic trends and transport variability inducing processes |
title_sort |
labrador sea water exported through flemish pass: hydrographic trends and transport variability inducing processes |
publisher |
Universität Bremen |
publishDate |
2017 |
url |
https://media.suub.uni-bremen.de/handle/elib/1267 https://nbn-resolving.org/urn:nbn:de:gbv:46-00106030-18 |
genre |
Labrador Sea |
genre_facet |
Labrador Sea |
op_relation |
https://media.suub.uni-bremen.de/handle/elib/1267 urn:nbn:de:gbv:46-00106030-18 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766060955011121152 |