Multiscale Observations of Deep Convection in the Northwestern Mediterranean Sea during Winter 2012-2013 Using Multiple Platforms

Pierre Testor; Anthony Bosse; Loïc Houpert; Félix Margirier; Laurent Mortier; Hervé Le Goff; Denis Dausse; Matthieu Labaste; Johannes Karstensen; Daniel Hayes; Antonio Olita; Alberto Ribotti; Katrin Schroeder; Jacopo Chiggiato; Reiner Onken; Emma Heslop; Baptiste Mourre; Fabrizio d'Ortenzio; Pierre Mayot; Héloise Lavigne; Orens de Fommervault; Laurent Coppola; Louis Prieur; Vincent Taillandier; Xavier Durrieu de Madron; François Bourrin; Gael Many; Pierre Damien; Claude Estournel; Patrick Marsaleix; Isabelle Taupier-Letage; Patrick Raimbault; Robin Waldman; Marie-Noëlle Bouin; Hervé Giordani; Guy Caniaux; Samuel Somot; Véronique Ducrocq; Pascal Conan

Multiscale Observations of Deep Convection in the Northwestern Mediterranean Sea during Winter 2012-2013 Using Multiple Platforms

Pierre Testor ¹ Anthony Bosse Loïc Houpert ² Félix Margirier ¹ Laurent Mortier ¹ Hervé Le Goff ³ Denis Dausse ³ Matthieu Labaste ³ Johannes Karstensen ⁴ Daniel Hayes ⁵ Antonio Olita Alberto Ribotti Katrin Schroeder ⁶ Jacopo Chiggiato ⁷ Reiner Onken ⁸ Emma Heslop ⁹ Baptiste Mourre ¹⁰ Fabrizio d'Ortenzio Pierre Mayot ¹¹ Héloise Lavigne Orens de Fommervault Laurent Coppola Louis Prieur Vincent Taillandier Xavier Durrieu de Madron ¹² François Bourrin ¹² Gael Many ¹² Pierre Damien ¹³ Claude Estournel ¹³ Patrick Marsaleix ¹³ Isabelle Taupier-Letage ¹⁴ Patrick Raimbault ¹⁵ Robin Waldman ¹⁶ Marie-Noëlle Bouin ¹⁷ Hervé Giordani ¹⁷ Guy Caniaux ¹⁶ Samuel Somot ¹⁶ Véronique Ducrocq ¹⁶ Pascal Conan ¹⁸

1 VOG - Variabilité de l'Océan et de la Glace de mer

LOCEAN - Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques

2 CEFREM - Centre de formation et de recherche sur l'environnement marin

3 DITM - Développement Instrumental et Techniques Marines

LOCEAN - Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques

4 IFM-GEOMAR - Leibniz-Institut für Meereswissenschaften

5 Cyprus Oceanography Center

6 Istituto di Scienze Marine

7 ISMAR - Istituto di Science Marine

8 GKSS - Helmholtz-Zentrum Geesthacht

9 IMEDEA - Institut Mediterrani d'Estudis Avancats

10 SOCIB - Sistema d’observació i predicció costaner de les Illes Balears (.)

11 CNERA Petite faune sédentaire de plaine

12 CEFREM - Centre de Formation et de Recherche sur les Environnements Méditérranéens

13 LA - Laboratoire d'aérologie - LA

14 LOB - Laboratoire d'océanographie et de biogéochimie

15 MIO - Institut méditerranéen d'océanologie

16 CNRM-GAME - Groupe d'étude de l'atmosphère météorologique

17 CNRM - Centre national de recherches météorologiques

18 UPMC - Université Pierre et Marie Curie - Paris 6

Abstract : During winter 2012–2013, open‐ocean deep convection which is a major driver for the thermohaline circulation and ventilation of the ocean, occurred in the Gulf of Lions (Northwestern Mediterranean Sea) and has been thoroughly documented thanks in particular to the deployment of several gliders, Argo profiling floats, several dedicated ship cruises, and a mooring array during a period of about a year. Thanks to these intense observational efforts, we show that deep convection reached the bottom in winter early in February 2013 in a area of maximum 28 ± 3 10⁹ m². We present new quantitative results with estimates of heat and salt content at the subbasin scale at different time scales (on the seasonal scale to a 10 days basis) through optimal interpolation techniques, and robust estimates of the deep water formation rate of 2.0 ± 0.2 Sv. We provide an overview of the spatiotemporal coverage that has been reached throughout the seasons this year and we highlight some results based on data analysis and numerical modeling that are presented in this special issue. They concern key circulation features for the deep convection and the subsequent bloom such as Submesoscale Coherent Vortices (SCVs), the plumes, and symmetric instability at the edge of the deep convection area.

Document type :

Journal articles

Domain :

Sciences of the Universe [physics]

Sciences of the Universe [physics] / Earth Sciences

Sciences of the Universe [physics] / Earth Sciences / Oceanography

Complete list of metadatas

https://hal-univ-perp.archives-ouvertes.fr/hal-01764125
Contributor : Dorian Miler <>
Submitted on : Wednesday, April 11, 2018 - 4:32:33 PM
Last modification on : Thursday, August 8, 2019 - 4:10:02 PM

Multiscale Observations of Deep Convection in the Northwestern Mediterranean Sea during Winter 2012-2013 Using Multiple Platforms

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Multiscale Observations of Deep Convection in the Northwestern Mediterranean Sea during Winter 2012-2013 Using Multiple Platforms

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