Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009
A series of transects carried out in 2002–2009 across the Laptev Sea continental margin show consistent cross-slope differences of the lower halocline water (LHW). Over the slope the LHW core is on average warmer and saltier by 0.39°C and 0.26 practical salinity unit, respectively, relative to the o...
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ftnerc:oai:nora.nerc.ac.uk:303005 2023-05-15T17:07:14+02:00 Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009 Dmitrenko, Igor A. Ivanov, Vladimir V. Kirillov, Sergey A. Vinogradova, Elena L. Torres-Valdes, Sinhue Bauch, Dorothea 2011 http://nora.nerc.ac.uk/id/eprint/303005/ unknown Dmitrenko, Igor A.; Ivanov, Vladimir V.; Kirillov, Sergey A.; Vinogradova, Elena L.; Torres-Valdes, Sinhue; Bauch, Dorothea. 2011 Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009. Journal of Geophysical Research, 116 (C10). C10024. https://doi.org/10.1029/2011JC007269 <https://doi.org/10.1029/2011JC007269> Publication - Article PeerReviewed 2011 ftnerc https://doi.org/10.1029/2011JC007269 2023-02-04T19:35:53Z A series of transects carried out in 2002–2009 across the Laptev Sea continental margin show consistent cross-slope differences of the lower halocline water (LHW). Over the slope the LHW core is on average warmer and saltier by 0.39°C and 0.26 practical salinity unit, respectively, relative to the off-slope LHW. Underlying Atlantic water (AW) thermohaline properties exhibit an opposite pattern; it is colder and fresher over the slope and warmer and saltier off the slope. Although on-slope and off-slope LHWs have different formation histories, our results suggest that an important part of the heat and salt lost from the AW is gained by the overlying LHW over the continental slope area. This implies the role of enhanced vertical mixing over the sloping topography, which contributes to the difference between the on- and off-slope LHW properties. The distribution of chemical tracers (dissolved oxygen and nutrients) provides further evidence supporting this interpretation and additionally suggests that the LHW may also be influenced by water from the outer shelf. Article in Journal/Newspaper laptev Laptev Sea Natural Environment Research Council: NERC Open Research Archive Laptev Sea Journal of Geophysical Research 116 C10 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
A series of transects carried out in 2002–2009 across the Laptev Sea continental margin show consistent cross-slope differences of the lower halocline water (LHW). Over the slope the LHW core is on average warmer and saltier by 0.39°C and 0.26 practical salinity unit, respectively, relative to the off-slope LHW. Underlying Atlantic water (AW) thermohaline properties exhibit an opposite pattern; it is colder and fresher over the slope and warmer and saltier off the slope. Although on-slope and off-slope LHWs have different formation histories, our results suggest that an important part of the heat and salt lost from the AW is gained by the overlying LHW over the continental slope area. This implies the role of enhanced vertical mixing over the sloping topography, which contributes to the difference between the on- and off-slope LHW properties. The distribution of chemical tracers (dissolved oxygen and nutrients) provides further evidence supporting this interpretation and additionally suggests that the LHW may also be influenced by water from the outer shelf. |
format |
Article in Journal/Newspaper |
author |
Dmitrenko, Igor A. Ivanov, Vladimir V. Kirillov, Sergey A. Vinogradova, Elena L. Torres-Valdes, Sinhue Bauch, Dorothea |
spellingShingle |
Dmitrenko, Igor A. Ivanov, Vladimir V. Kirillov, Sergey A. Vinogradova, Elena L. Torres-Valdes, Sinhue Bauch, Dorothea Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009 |
author_facet |
Dmitrenko, Igor A. Ivanov, Vladimir V. Kirillov, Sergey A. Vinogradova, Elena L. Torres-Valdes, Sinhue Bauch, Dorothea |
author_sort |
Dmitrenko, Igor A. |
title |
Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009 |
title_short |
Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009 |
title_full |
Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009 |
title_fullStr |
Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009 |
title_full_unstemmed |
Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009 |
title_sort |
properties of the atlantic derived halocline waters over the laptev sea continental margin: evidence from 2002 to 2009 |
publishDate |
2011 |
url |
http://nora.nerc.ac.uk/id/eprint/303005/ |
geographic |
Laptev Sea |
geographic_facet |
Laptev Sea |
genre |
laptev Laptev Sea |
genre_facet |
laptev Laptev Sea |
op_relation |
Dmitrenko, Igor A.; Ivanov, Vladimir V.; Kirillov, Sergey A.; Vinogradova, Elena L.; Torres-Valdes, Sinhue; Bauch, Dorothea. 2011 Properties of the Atlantic derived halocline waters over the Laptev Sea continental margin: Evidence from 2002 to 2009. Journal of Geophysical Research, 116 (C10). C10024. https://doi.org/10.1029/2011JC007269 <https://doi.org/10.1029/2011JC007269> |
op_doi |
https://doi.org/10.1029/2011JC007269 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
C10 |
_version_ |
1766062564200939520 |