Journal articles
Seasonal Meandering of the Polar Front Upstream of the Kerguelen Plateau
Etienne Pauthenet
1
Fabien Roquet
1, 2
Gurvan Madec
3
Christophe Guinet
4
Mark A. Hindell
5, 6
Clive R. Mcmahon
5, 7, 8
Robert G. Harcourt
8
David Nerini
9
3
NEMO R&D - Nucleus for European Modeling of the Ocean
LOCEAN - Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques
Etienne Pauthenet 1
Author IdHAL : etienne-pauthenet ORCID : https://orcid.org/0000-0002-0531-3810
Fabien Roquet 1, 2
Author
Gurvan Madec 3
Author IdHAL : gurvan-madec ResearcherId : http://www.researcherid.com/rid/E-7825-2010 ORCID : https://orcid.org/0000-0002-6447-4198
Christophe Guinet 4
Author IdHAL : christophe-guinet ORCID : https://orcid.org/0000-0003-2481-6947
Mark A. Hindell 5, 6
Author
Clive R. Mcmahon 5, 7, 8
Author
Robert G. Harcourt 8
Author
David Nerini 9
Author IdHAL : david-nerini ORCID : https://orcid.org/0000-0002-7995-1364
1
MISU - Department of Meteorology [Stockholm] (SE-106 91 Stockholm, Sweden - Sweden)
- Stockholm University (Stockholm University, SE-106 91 Stockholm, Sweden - Sweden)
2
Department of Marine Sciences [Gothenburg] (University of Gothenburg, Tjärnö,
SE-452 96 Strömstad - Sweden)
- GU - University of Gothenburg (Box 100, SE-405 30 Gothenburg - Sweden)
3
NEMO R&D - Nucleus for European Modeling of the Ocean (France)
- LOCEAN - Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (case 100 - 4 place Jussieu - 75252 PARIS CEDEX 05 ; Institut de Recherche pour le Développement - Centre de recherche d'Ile-de-France - 32 avenue Henri Varagnat - 93143 Bondy Cedex
- France)
- IRD - Institut de Recherche pour le Développement (Siège Le Sextant 44, bd de Dunkerque CS 90009 13572 Marseille cedex 02 - France)
- MNHN - Muséum national d'Histoire naturelle : USM402 (57, rue Cuvier - 75231 Paris Cedex 05 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7159 (France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- SU - Sorbonne Université : UM71 (21 rue de l’École de médecine - 75006 Paris - France)
4
CEBC - Centre d'Études Biologiques de Chizé - UMR 7372 (405 Route de Prissé la Charrière, 79360 VILLIERS-EN-BOIS - France)
- ULR - Université de La Rochelle (Technoforum - 23 avenue Albert Einstein - BP 33060 - 17031 La Rochelle - France - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7372 (France)
- INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement : USC 1339 (France)
5
IMAS - Institute for Marine and Antarctic Studies [Horbat] (Private bag 129 Hobart TAS 7001 - Australia)
- UTAS - University of Tasmania [Hobart, Australia] (Hobart TAS 7005, Australie - Australia)
6
ACE-CRC - Antarctic Climate and Ecosystems Cooperative Research Centre (Centenary Building, Grosvenor Crescent Sandy Bay Tasmania 7005 - Australia)
7
USIMS - University of Sydney Institute of Marine Science (Edgeworth David Building F05 NSW 2006 - Australia)
- The University of Sydney (New South Wales 2006 - Australia)
8
Dept of Biological Sciences [Australia] (Macquarie Univ., Sydney, NSW, Australia - Australia)
- Macquarie University [Sydney] (Sydney, NSW, 2109, Australia - Australia)
9
MIO - Institut méditerranéen d'océanologie (M.I.O. Institut Méditerranéen d'Océanologie
Bâtiment Méditerranée
163 Avenue de Luminy
13288 Marseille - France)
- IRD - Institut de Recherche pour le Développement : UMR_D235 (Siège Le Sextant 44, bd de Dunkerque CS 90009 13572 Marseille cedex 02 - France)
- AMU - Aix Marseille Université : UM110 (Aix-Marseille Université Jardins du Pharo 58 Boulevard Charles Livon 13284 Marseille cedex 7 - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UMR7294 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- UTLN - Université de Toulon : UMR7294 (Avenue de l'Université - BP 20132 - 83957 La Garde Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7294 (France)
Abstract : The location of the Antarctic Polar Front (PF) is mapped in the Southern Indian Ocean by decomposing the shape of temperature and salinity profiles into vertical modes using a functional Principal Component Analysis. We define the PF as the northernmost minimum of temperature at the subsurface andrepresent it as a linear combination of the first three modes. This method is applied on an ocean reanalysis data set and on in situ observations, revealing a seasonal variability of the PF latitudinal position that is most pronounced between the Conrad Rise and the Kerguelen Plateau. This shift coincides with variations in the transport across the Northern Kerguelen Plateau. We suggest that seasonal changes of the upper stratification may drive the observed variability of the PF, with potentially large implications for thepathways and residence time of water masses over the plateau and the phytoplankton bloom extending southeast of the Kerguelen Islands.
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Journal articles
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https://hal-amu.archives-ouvertes.fr/hal-02024254
Contributor : Valerie Michotey <>
Submitted on : Tuesday, February 19, 2019 - 7:24:58 AM
Last modification on : Wednesday, January 13, 2021 - 11:10:04 AM
Contributor : Valerie Michotey <>
Submitted on : Tuesday, February 19, 2019 - 7:24:58 AM
Last modification on : Wednesday, January 13, 2021 - 11:10:04 AM
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- HAL Id : hal-02024254, version 1
- DOI : 10.1029/2018GL079614
- WOS : 000447761300049
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UNIV-AMU | INSU | CNRS | UNIV-TLN | UNIV-ROCHELLE | MIO | OSU-INSTITUT-PYTHEAS | SORBONNE-UNIVERSITE | SU-SCIENCES | LOCEAN | MNHN | INRAE | SU-TI
Citation
Etienne Pauthenet, Fabien Roquet, Gurvan Madec, Christophe Guinet, Mark A. Hindell, et al.. Seasonal Meandering of the Polar Front Upstream of the Kerguelen Plateau. Geophysical Research Letters, American Geophysical Union, 2018, 45 (18), pp.9774-9781. ⟨10.1029/2018GL079614⟩. ⟨hal-02024254⟩
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