Changes in Atlantic Water circulation patterns and volume transports North of Svalbard over the last 12 years (2008‐2020)
International audience tlantic Water (AW) enters the Arctic through Fram Strait as the West Spitsbergen Current (WSC). When reaching the south of Yermak Plateau, the WSC splits into the Svalbard, Yermak Pass, and Yermak Branches. Downstream of Yermak Plateau, AW pathways remain unclear and uncertain...
Published in: | Journal of Geophysical Research: Oceans |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2021
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Subjects: | |
Online Access: | https://hal.science/hal-03059310 https://hal.science/hal-03059310/document https://hal.science/hal-03059310/file/2020JC016825.pdf https://doi.org/10.1029/2020jc016825 |
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ftceafr:oai:HAL:hal-03059310v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDE.MCG]Environmental Sciences/Global Changes |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDE.MCG]Environmental Sciences/Global Changes Athanase, Marylou Provost, Christine Artana, Camila Pérez‐hernández, M. Dolores Sennéchael, Nathalie Bertosio, Cécilia Garric, Gilles Lellouche, Jean‐michel Prandi, Pierre Changes in Atlantic Water circulation patterns and volume transports North of Svalbard over the last 12 years (2008‐2020) |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDE.MCG]Environmental Sciences/Global Changes |
description |
International audience tlantic Water (AW) enters the Arctic through Fram Strait as the West Spitsbergen Current (WSC). When reaching the south of Yermak Plateau, the WSC splits into the Svalbard, Yermak Pass, and Yermak Branches. Downstream of Yermak Plateau, AW pathways remain unclear and uncertainties persist on how AW branches eventually merge and contribute to the boundary current along the continental slope. We took advantage of the good performance of the 1/12° Mercator Ocean model in the Western Nansen Basin (WNB) to examine the AW circulation and volume transports in the area. The model showed that the circulation changed in 2008–2020. The Yermak Branch (YB) strengthened over the northern Yermak Plateau, feeding the Return YB along the eastern flank of the Plateau. West of Yermak Plateau, the Transpolar Drift likely shifted westward while AW recirculations progressed further north. Downstream of the Yermak Plateau, an offshore current developed above the 3,800 m isobath, fed by waters from the Yermak Plateau tip. East of 18°E, enhanced mesoscale activity from the boundary current injected additional AW basin‐ward, further contributing to the offshore circulation. A recurrent anticyclonic circulation developed in the Sofia Deep, which also occasionally fed the western part of the offshore flow. The intensification of the circulation coincided with an overall warming in the upper WNB (0–1,000 m), consistent with the progression of AW. This regional description of the changing circulation provides a background for the interpretation of upcoming observations. |
author2 |
Austral, Boréal et Carbone (ABC) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Mercator Océan Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Service hydrographique et océanographique de la Marine-Centre National de la Recherche Scientifique (CNRS)-Météo-France Université de Las Palmas de Gran Canaria Espagne (ULPGC) Collecte Localisation Satellites (CLS) IAOOS grant A18JROI002 at Sorbonne University ANR-14-AORS-0003,PAN-ARCTIC OPTIONS,PAN-ARTIC OPTIONS: HOLISTIC INTEGRATION FOR ARCTIC COASTAL-MARINE SUSTAINABILITY(2014) |
format |
Article in Journal/Newspaper |
author |
Athanase, Marylou Provost, Christine Artana, Camila Pérez‐hernández, M. Dolores Sennéchael, Nathalie Bertosio, Cécilia Garric, Gilles Lellouche, Jean‐michel Prandi, Pierre |
author_facet |
Athanase, Marylou Provost, Christine Artana, Camila Pérez‐hernández, M. Dolores Sennéchael, Nathalie Bertosio, Cécilia Garric, Gilles Lellouche, Jean‐michel Prandi, Pierre |
author_sort |
Athanase, Marylou |
title |
Changes in Atlantic Water circulation patterns and volume transports North of Svalbard over the last 12 years (2008‐2020) |
title_short |
Changes in Atlantic Water circulation patterns and volume transports North of Svalbard over the last 12 years (2008‐2020) |
title_full |
Changes in Atlantic Water circulation patterns and volume transports North of Svalbard over the last 12 years (2008‐2020) |
title_fullStr |
Changes in Atlantic Water circulation patterns and volume transports North of Svalbard over the last 12 years (2008‐2020) |
title_full_unstemmed |
Changes in Atlantic Water circulation patterns and volume transports North of Svalbard over the last 12 years (2008‐2020) |
title_sort |
changes in atlantic water circulation patterns and volume transports north of svalbard over the last 12 years (2008‐2020) |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03059310 https://hal.science/hal-03059310/document https://hal.science/hal-03059310/file/2020JC016825.pdf https://doi.org/10.1029/2020jc016825 |
long_lat |
ENVELOPE(5.000,5.000,81.250,81.250) |
geographic |
Arctic Svalbard Yermak Plateau |
geographic_facet |
Arctic Svalbard Yermak Plateau |
genre |
Arctic Fram Strait Nansen Basin Svalbard Yermak plateau Spitsbergen |
genre_facet |
Arctic Fram Strait Nansen Basin Svalbard Yermak plateau Spitsbergen |
op_source |
ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-03059310 Journal of Geophysical Research. Oceans, 2021, 126 (1), pp.e2020JC016825. ⟨10.1029/2020jc016825⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2020jc016825 hal-03059310 https://hal.science/hal-03059310 https://hal.science/hal-03059310/document https://hal.science/hal-03059310/file/2020JC016825.pdf doi:10.1029/2020jc016825 WOS: 000623522000009 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2020jc016825 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
126 |
container_issue |
1 |
_version_ |
1802641554674810880 |
spelling |
ftceafr:oai:HAL:hal-03059310v1 2024-06-23T07:50:38+00:00 Changes in Atlantic Water circulation patterns and volume transports North of Svalbard over the last 12 years (2008‐2020) Athanase, Marylou Provost, Christine Artana, Camila Pérez‐hernández, M. Dolores Sennéchael, Nathalie Bertosio, Cécilia Garric, Gilles Lellouche, Jean‐michel Prandi, Pierre Austral, Boréal et Carbone (ABC) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) Mercator Océan Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Service hydrographique et océanographique de la Marine-Centre National de la Recherche Scientifique (CNRS)-Météo-France Université de Las Palmas de Gran Canaria Espagne (ULPGC) Collecte Localisation Satellites (CLS) IAOOS grant A18JROI002 at Sorbonne University ANR-14-AORS-0003,PAN-ARCTIC OPTIONS,PAN-ARTIC OPTIONS: HOLISTIC INTEGRATION FOR ARCTIC COASTAL-MARINE SUSTAINABILITY(2014) 2021-01 https://hal.science/hal-03059310 https://hal.science/hal-03059310/document https://hal.science/hal-03059310/file/2020JC016825.pdf https://doi.org/10.1029/2020jc016825 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1029/2020jc016825 hal-03059310 https://hal.science/hal-03059310 https://hal.science/hal-03059310/document https://hal.science/hal-03059310/file/2020JC016825.pdf doi:10.1029/2020jc016825 WOS: 000623522000009 info:eu-repo/semantics/OpenAccess ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-03059310 Journal of Geophysical Research. Oceans, 2021, 126 (1), pp.e2020JC016825. ⟨10.1029/2020jc016825⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDE.MCG]Environmental Sciences/Global Changes info:eu-repo/semantics/article Journal articles 2021 ftceafr https://doi.org/10.1029/2020jc016825 2024-06-03T23:45:30Z International audience tlantic Water (AW) enters the Arctic through Fram Strait as the West Spitsbergen Current (WSC). When reaching the south of Yermak Plateau, the WSC splits into the Svalbard, Yermak Pass, and Yermak Branches. Downstream of Yermak Plateau, AW pathways remain unclear and uncertainties persist on how AW branches eventually merge and contribute to the boundary current along the continental slope. We took advantage of the good performance of the 1/12° Mercator Ocean model in the Western Nansen Basin (WNB) to examine the AW circulation and volume transports in the area. The model showed that the circulation changed in 2008–2020. The Yermak Branch (YB) strengthened over the northern Yermak Plateau, feeding the Return YB along the eastern flank of the Plateau. West of Yermak Plateau, the Transpolar Drift likely shifted westward while AW recirculations progressed further north. Downstream of the Yermak Plateau, an offshore current developed above the 3,800 m isobath, fed by waters from the Yermak Plateau tip. East of 18°E, enhanced mesoscale activity from the boundary current injected additional AW basin‐ward, further contributing to the offshore circulation. A recurrent anticyclonic circulation developed in the Sofia Deep, which also occasionally fed the western part of the offshore flow. The intensification of the circulation coincided with an overall warming in the upper WNB (0–1,000 m), consistent with the progression of AW. This regional description of the changing circulation provides a background for the interpretation of upcoming observations. Article in Journal/Newspaper Arctic Fram Strait Nansen Basin Svalbard Yermak plateau Spitsbergen HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Arctic Svalbard Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) Journal of Geophysical Research: Oceans 126 1 |