Changes in distribution of brine waters on the Laptev Sea shelf in 2007
Combined salinity and δ18O data from summer 2007 reveal a significant change in brine production in the Laptev Sea relative to summer 1994. The distribution of river water and brine enriched waters on the Laptev Sea shelf is derived based on mass balance calculations using salinity and δ18O data. Wh...
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ftoceanrep:oai:oceanrep.geomar.de:8730 2023-05-15T15:11:12+02:00 Changes in distribution of brine waters on the Laptev Sea shelf in 2007 Bauch, Dorothea Hölemann, Jens Willmes, Sascha Gröger, Matthias Novikhin, Andrey Nikulina, Anna Kassens, Heidemarie Timokhov, Leonid 2010 text https://oceanrep.geomar.de/id/eprint/8730/ https://oceanrep.geomar.de/id/eprint/8730/2/Original_2010_BauchDetal_JGRC_.pdf https://doi.org/10.1029/2010JC006249 en eng AGU (American Geophysical Union) https://oceanrep.geomar.de/id/eprint/8730/2/Original_2010_BauchDetal_JGRC_.pdf Bauch, D. , Hölemann, J., Willmes, S., Gröger, M., Novikhin, A., Nikulina, A., Kassens, H. and Timokhov, L. (2010) Changes in distribution of brine waters on the Laptev Sea shelf in 2007. Open Access Journal of Geophysical Research: Oceans, 115 . C11008. DOI 10.1029/2010JC006249 <https://doi.org/10.1029/2010JC006249>. doi:10.1029/2010JC006249 info:eu-repo/semantics/openAccess Article PeerReviewed 2010 ftoceanrep https://doi.org/10.1029/2010JC006249 2023-04-07T14:57:00Z Combined salinity and δ18O data from summer 2007 reveal a significant change in brine production in the Laptev Sea relative to summer 1994. The distribution of river water and brine enriched waters on the Laptev Sea shelf is derived based on mass balance calculations using salinity and δ18O data. While in 1994 maximal influence of brines is seen within bottom waters [Bauch et al., 2009a], in 2007 the influence of brines is highest within the surface layer and only a moderate influence of brines is observed in the bottom layer. In contrast to 2007, salinity and δ18O data from summer 1994 clearly identify a locally formed brine enriched bottom water mass as mixing endmember between surface layer and inner shelf waters on one side and with higher salinity water from the outer Laptev Sea on the other side. In 2007 the brine enriched waters are predominantly part of the surface regime and the mixing endmember between surface layer and outer shelf waters is replaced by a relatively salty bottom water mass. This relatively salty bottom water probably originates from the western Laptev Sea. The inverted distribution of brines in the water column in 2007 relative to 1994 suggests a less effective winter sea-ice formation in winter 2006/2007 combined with advection of more saline waters from the western Laptev Sea or the outer shelf precedent to 1 the climatically extreme summer 2007. The observed changes result in an altered export of waters from the Laptev Sea to the Arctic Ocean halocline. Article in Journal/Newspaper Arctic Arctic Ocean laptev Laptev Sea Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Arctic Ocean Laptev Sea Journal of Geophysical Research 115 C11 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Combined salinity and δ18O data from summer 2007 reveal a significant change in brine production in the Laptev Sea relative to summer 1994. The distribution of river water and brine enriched waters on the Laptev Sea shelf is derived based on mass balance calculations using salinity and δ18O data. While in 1994 maximal influence of brines is seen within bottom waters [Bauch et al., 2009a], in 2007 the influence of brines is highest within the surface layer and only a moderate influence of brines is observed in the bottom layer. In contrast to 2007, salinity and δ18O data from summer 1994 clearly identify a locally formed brine enriched bottom water mass as mixing endmember between surface layer and inner shelf waters on one side and with higher salinity water from the outer Laptev Sea on the other side. In 2007 the brine enriched waters are predominantly part of the surface regime and the mixing endmember between surface layer and outer shelf waters is replaced by a relatively salty bottom water mass. This relatively salty bottom water probably originates from the western Laptev Sea. The inverted distribution of brines in the water column in 2007 relative to 1994 suggests a less effective winter sea-ice formation in winter 2006/2007 combined with advection of more saline waters from the western Laptev Sea or the outer shelf precedent to 1 the climatically extreme summer 2007. The observed changes result in an altered export of waters from the Laptev Sea to the Arctic Ocean halocline. |
format |
Article in Journal/Newspaper |
author |
Bauch, Dorothea Hölemann, Jens Willmes, Sascha Gröger, Matthias Novikhin, Andrey Nikulina, Anna Kassens, Heidemarie Timokhov, Leonid |
spellingShingle |
Bauch, Dorothea Hölemann, Jens Willmes, Sascha Gröger, Matthias Novikhin, Andrey Nikulina, Anna Kassens, Heidemarie Timokhov, Leonid Changes in distribution of brine waters on the Laptev Sea shelf in 2007 |
author_facet |
Bauch, Dorothea Hölemann, Jens Willmes, Sascha Gröger, Matthias Novikhin, Andrey Nikulina, Anna Kassens, Heidemarie Timokhov, Leonid |
author_sort |
Bauch, Dorothea |
title |
Changes in distribution of brine waters on the Laptev Sea shelf in 2007 |
title_short |
Changes in distribution of brine waters on the Laptev Sea shelf in 2007 |
title_full |
Changes in distribution of brine waters on the Laptev Sea shelf in 2007 |
title_fullStr |
Changes in distribution of brine waters on the Laptev Sea shelf in 2007 |
title_full_unstemmed |
Changes in distribution of brine waters on the Laptev Sea shelf in 2007 |
title_sort |
changes in distribution of brine waters on the laptev sea shelf in 2007 |
publisher |
AGU (American Geophysical Union) |
publishDate |
2010 |
url |
https://oceanrep.geomar.de/id/eprint/8730/ https://oceanrep.geomar.de/id/eprint/8730/2/Original_2010_BauchDetal_JGRC_.pdf https://doi.org/10.1029/2010JC006249 |
geographic |
Arctic Arctic Ocean Laptev Sea |
geographic_facet |
Arctic Arctic Ocean Laptev Sea |
genre |
Arctic Arctic Ocean laptev Laptev Sea Sea ice |
genre_facet |
Arctic Arctic Ocean laptev Laptev Sea Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/8730/2/Original_2010_BauchDetal_JGRC_.pdf Bauch, D. , Hölemann, J., Willmes, S., Gröger, M., Novikhin, A., Nikulina, A., Kassens, H. and Timokhov, L. (2010) Changes in distribution of brine waters on the Laptev Sea shelf in 2007. Open Access Journal of Geophysical Research: Oceans, 115 . C11008. DOI 10.1029/2010JC006249 <https://doi.org/10.1029/2010JC006249>. doi:10.1029/2010JC006249 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2010JC006249 |
container_title |
Journal of Geophysical Research |
container_volume |
115 |
container_issue |
C11 |
_version_ |
1766342094869233664 |