Atlantic Water Inflow Through the Yermak Pass Branch: Evolution Since 2007
International audience Thirty-four months (2017–2020) of mooring data were recently obtained at 80.6°N, 7.26°E in the main branch of Atlantic Water inflow to the Arctic, the Yermak Pass Branch. The Yermak Pass Branch was sampled at that same location during 14 months a decade ago (2007–2008) when se...
Published in: | Journal of Geophysical Research: Oceans |
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Main Authors: | , , , , |
Other Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2022
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Subjects: | |
Online Access: | https://hal.science/hal-03562925 https://hal.science/hal-03562925/document https://hal.science/hal-03562925/file/manuscript-69.pdf https://doi.org/10.1029/2021jc018006 |
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ftunivparis:oai:HAL:hal-03562925v1 |
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openpolar |
institution |
Open Polar |
collection |
Université de Paris: Portail HAL |
op_collection_id |
ftunivparis |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Artana, Camila Provost, Christine Koenig, Zoé Athanase, Marylou Asgari, Ava Atlantic Water Inflow Through the Yermak Pass Branch: Evolution Since 2007 |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Thirty-four months (2017–2020) of mooring data were recently obtained at 80.6°N, 7.26°E in the main branch of Atlantic Water inflow to the Arctic, the Yermak Pass Branch. The Yermak Pass Branch was sampled at that same location during 14 months a decade ago (2007–2008) when sea ice was abundant (mean sea-ice concentration of 74% vs. 39% during the recent deployment). We focus on time scales larger than 50 hr. The new mooring data set shows an increase in the velocity variations of 40% compared to the 2007–2008 period. Year 2018 was exceptional with ice-free conditions over the entire year and an intensified mesoscale activity compared to other years. Temperature and salinity time series at 340 m showed significant trends over 3 years (freshening of −0.07 g/kg and cooling of about −0.9°C in 3 years). The performance of 1/12° Mercator-Ocean operational model at the mooring location was precisely assessed. The modeled Atlantic Water transport was on average larger during 2017–2020 (40% larger) than during 2007–2008. The synoptic transport time series ranged between −1 and 5 Sv over 2007–2020 and showed large seasonal and interannual variations. The transport was larger in winter than summer. However, occasionally negative transport (<−0.7 Sv) through the Yermak Pass Branch occurred during winters (“Blocking events”). These blocking events are associated with recirculations and eddy activity and were more common over the last years from 2016 onward. The model suggested that a Northern Branch crossing the Yermak Plateau further north (81.6°N) intermittently developed. |
author2 |
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 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) Norwegian Polar Institute Alfred Wegener Institute for Polar and Marine Research (AWI) H2020 Arctic Passion project, grant number 101003472 ANR-10-EQPX-0032,IAOOS,Système d'observation de la glace, de l'atmopshère et de l'océan en Arctique(2010) ANR-14-AORS-0003,PAN-ARCTIC OPTIONS,PAN-ARTIC OPTIONS: HOLISTIC INTEGRATION FOR ARCTIC COASTAL-MARINE SUSTAINABILITY(2014) European Project: 603887,EC:FP7:ENV,FP7-ENV-2013-two-stage,ICE-ARC(2014) |
format |
Article in Journal/Newspaper |
author |
Artana, Camila Provost, Christine Koenig, Zoé Athanase, Marylou Asgari, Ava |
author_facet |
Artana, Camila Provost, Christine Koenig, Zoé Athanase, Marylou Asgari, Ava |
author_sort |
Artana, Camila |
title |
Atlantic Water Inflow Through the Yermak Pass Branch: Evolution Since 2007 |
title_short |
Atlantic Water Inflow Through the Yermak Pass Branch: Evolution Since 2007 |
title_full |
Atlantic Water Inflow Through the Yermak Pass Branch: Evolution Since 2007 |
title_fullStr |
Atlantic Water Inflow Through the Yermak Pass Branch: Evolution Since 2007 |
title_full_unstemmed |
Atlantic Water Inflow Through the Yermak Pass Branch: Evolution Since 2007 |
title_sort |
atlantic water inflow through the yermak pass branch: evolution since 2007 |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03562925 https://hal.science/hal-03562925/document https://hal.science/hal-03562925/file/manuscript-69.pdf https://doi.org/10.1029/2021jc018006 |
genre |
Arctic Arctic Sea ice Yermak plateau |
genre_facet |
Arctic Arctic Sea ice Yermak plateau |
op_source |
ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-03562925 Journal of Geophysical Research. Oceans, 2022, 127 (2), pp.e2021JC018006. ⟨10.1029/2021jc018006⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2021jc018006 info:eu-repo/grantAgreement/EC/FP7/603887/EU/Ice, Climate, and Economics - Arctic Research on Change/ICE-ARC hal-03562925 https://hal.science/hal-03562925 https://hal.science/hal-03562925/document https://hal.science/hal-03562925/file/manuscript-69.pdf doi:10.1029/2021jc018006 WOS: 000763431100001 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2021jc018006 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
127 |
container_issue |
2 |
_version_ |
1799471434901225472 |
spelling |
ftunivparis:oai:HAL:hal-03562925v1 2024-05-19T07:33:22+00:00 Atlantic Water Inflow Through the Yermak Pass Branch: Evolution Since 2007 Artana, Camila Provost, Christine Koenig, Zoé Athanase, Marylou Asgari, Ava 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 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) Norwegian Polar Institute Alfred Wegener Institute for Polar and Marine Research (AWI) H2020 Arctic Passion project, grant number 101003472 ANR-10-EQPX-0032,IAOOS,Système d'observation de la glace, de l'atmopshère et de l'océan en Arctique(2010) ANR-14-AORS-0003,PAN-ARCTIC OPTIONS,PAN-ARTIC OPTIONS: HOLISTIC INTEGRATION FOR ARCTIC COASTAL-MARINE SUSTAINABILITY(2014) European Project: 603887,EC:FP7:ENV,FP7-ENV-2013-two-stage,ICE-ARC(2014) 2022-02 https://hal.science/hal-03562925 https://hal.science/hal-03562925/document https://hal.science/hal-03562925/file/manuscript-69.pdf https://doi.org/10.1029/2021jc018006 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1029/2021jc018006 info:eu-repo/grantAgreement/EC/FP7/603887/EU/Ice, Climate, and Economics - Arctic Research on Change/ICE-ARC hal-03562925 https://hal.science/hal-03562925 https://hal.science/hal-03562925/document https://hal.science/hal-03562925/file/manuscript-69.pdf doi:10.1029/2021jc018006 WOS: 000763431100001 info:eu-repo/semantics/OpenAccess ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-03562925 Journal of Geophysical Research. Oceans, 2022, 127 (2), pp.e2021JC018006. ⟨10.1029/2021jc018006⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2022 ftunivparis https://doi.org/10.1029/2021jc018006 2024-04-23T03:37:52Z International audience Thirty-four months (2017–2020) of mooring data were recently obtained at 80.6°N, 7.26°E in the main branch of Atlantic Water inflow to the Arctic, the Yermak Pass Branch. The Yermak Pass Branch was sampled at that same location during 14 months a decade ago (2007–2008) when sea ice was abundant (mean sea-ice concentration of 74% vs. 39% during the recent deployment). We focus on time scales larger than 50 hr. The new mooring data set shows an increase in the velocity variations of 40% compared to the 2007–2008 period. Year 2018 was exceptional with ice-free conditions over the entire year and an intensified mesoscale activity compared to other years. Temperature and salinity time series at 340 m showed significant trends over 3 years (freshening of −0.07 g/kg and cooling of about −0.9°C in 3 years). The performance of 1/12° Mercator-Ocean operational model at the mooring location was precisely assessed. The modeled Atlantic Water transport was on average larger during 2017–2020 (40% larger) than during 2007–2008. The synoptic transport time series ranged between −1 and 5 Sv over 2007–2020 and showed large seasonal and interannual variations. The transport was larger in winter than summer. However, occasionally negative transport (<−0.7 Sv) through the Yermak Pass Branch occurred during winters (“Blocking events”). These blocking events are associated with recirculations and eddy activity and were more common over the last years from 2016 onward. The model suggested that a Northern Branch crossing the Yermak Plateau further north (81.6°N) intermittently developed. Article in Journal/Newspaper Arctic Arctic Sea ice Yermak plateau Université de Paris: Portail HAL Journal of Geophysical Research: Oceans 127 2 |