Changes in Arctic Halocline Waters along the East Siberian Slope and in the Makarov Basin from 2007 to 2020.
In the Arctic Ocean, the “halocline” is a cold near-surface layer where salinity increases rapidly with depth. The halocline isolates the sea ice at the surface from the heat stored in the underlying warm and salty water. Hence, the strength of the halocline is a key feature in the maintenance of th...
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Online Access: | https://doi.org/10.1029/2021JC018082 |
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ftzenodo:oai:zenodo.org:7053780 2024-09-15T17:53:25+00:00 Changes in Arctic Halocline Waters along the East Siberian Slope and in the Makarov Basin from 2007 to 2020. Bertosio, Cecilia Provost, Christine Athanase, Marylou Sennechael, Nathalie Garric, Gilles Lellouche, Jean-Michel Kim, Jo-Hoon Cho, Kyoung-Ho Park, Taewook 2022-09-06 https://doi.org/10.1029/2021JC018082 unknown Zenodo https://zenodo.org/communities/eu https://doi.org/10.1029/2021JC018082 oai:zenodo.org:7053780 info:eu-repo/semantics/restrictedAccess info:eu-repo/semantics/article 2022 ftzenodo https://doi.org/10.1029/2021JC018082 2024-07-26T15:55:54Z In the Arctic Ocean, the “halocline” is a cold near-surface layer where salinity increases rapidly with depth. The halocline isolates the sea ice at the surface from the heat stored in the underlying warm and salty water. Hence, the strength of the halocline is a key feature in the maintenance of the sea ice cover. In this study, we use various ocean measurements and computer models to document recent changes in the halocline in the East-Amerasian sector of the Arctic. In this region, warm and salty water, usually found about a hundred meters deep, was found to become closer to the surface from 2012 onwards. We show that the shoaling of this warm water contributed to the progressive warming and weakening of the halocline in the East-Amerasian Arctic Ocean. This weakening of the halocline is emblematic of the emergence of a new Arctic regime, previously observed in the Eurasian sector of the Arctic, a region undergoing the growing influence from the Atlantic Ocean. Our study suggests the progression of this new regime, with shallow warm water and weakened halocline, further into the Arctic. Article in Journal/Newspaper Arctic Ocean makarov basin Sea ice Zenodo Journal of Geophysical Research: Oceans 127 9 |
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Open Polar |
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Zenodo |
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ftzenodo |
language |
unknown |
description |
In the Arctic Ocean, the “halocline” is a cold near-surface layer where salinity increases rapidly with depth. The halocline isolates the sea ice at the surface from the heat stored in the underlying warm and salty water. Hence, the strength of the halocline is a key feature in the maintenance of the sea ice cover. In this study, we use various ocean measurements and computer models to document recent changes in the halocline in the East-Amerasian sector of the Arctic. In this region, warm and salty water, usually found about a hundred meters deep, was found to become closer to the surface from 2012 onwards. We show that the shoaling of this warm water contributed to the progressive warming and weakening of the halocline in the East-Amerasian Arctic Ocean. This weakening of the halocline is emblematic of the emergence of a new Arctic regime, previously observed in the Eurasian sector of the Arctic, a region undergoing the growing influence from the Atlantic Ocean. Our study suggests the progression of this new regime, with shallow warm water and weakened halocline, further into the Arctic. |
format |
Article in Journal/Newspaper |
author |
Bertosio, Cecilia Provost, Christine Athanase, Marylou Sennechael, Nathalie Garric, Gilles Lellouche, Jean-Michel Kim, Jo-Hoon Cho, Kyoung-Ho Park, Taewook |
spellingShingle |
Bertosio, Cecilia Provost, Christine Athanase, Marylou Sennechael, Nathalie Garric, Gilles Lellouche, Jean-Michel Kim, Jo-Hoon Cho, Kyoung-Ho Park, Taewook Changes in Arctic Halocline Waters along the East Siberian Slope and in the Makarov Basin from 2007 to 2020. |
author_facet |
Bertosio, Cecilia Provost, Christine Athanase, Marylou Sennechael, Nathalie Garric, Gilles Lellouche, Jean-Michel Kim, Jo-Hoon Cho, Kyoung-Ho Park, Taewook |
author_sort |
Bertosio, Cecilia |
title |
Changes in Arctic Halocline Waters along the East Siberian Slope and in the Makarov Basin from 2007 to 2020. |
title_short |
Changes in Arctic Halocline Waters along the East Siberian Slope and in the Makarov Basin from 2007 to 2020. |
title_full |
Changes in Arctic Halocline Waters along the East Siberian Slope and in the Makarov Basin from 2007 to 2020. |
title_fullStr |
Changes in Arctic Halocline Waters along the East Siberian Slope and in the Makarov Basin from 2007 to 2020. |
title_full_unstemmed |
Changes in Arctic Halocline Waters along the East Siberian Slope and in the Makarov Basin from 2007 to 2020. |
title_sort |
changes in arctic halocline waters along the east siberian slope and in the makarov basin from 2007 to 2020. |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://doi.org/10.1029/2021JC018082 |
genre |
Arctic Ocean makarov basin Sea ice |
genre_facet |
Arctic Ocean makarov basin Sea ice |
op_relation |
https://zenodo.org/communities/eu https://doi.org/10.1029/2021JC018082 oai:zenodo.org:7053780 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1029/2021JC018082 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
127 |
container_issue |
9 |
_version_ |
1810295505801969664 |