1. Is the Mediterranean Sea Circulation in a Steady State
- Author
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Abed El Rahman Hassoun, Marie Abboud-Abi Saab, Patrizia Ziveri, Gianmarco Ingrosso, Catherine Goyet, Elissar Gemayel, Michele Giani, Franck Touratier, Véronique Guglielmi, Institut de Modélisation et d'Analyses en géo-environnement et santé - Espace Développement (IMAGES-Espace DEV), UMR 228 Espace-Dev, Espace pour le développement, Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA)-Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA), National Center for Marine Sciences [Lebanon], National Council for Scientific Research = Conseil national de la recherche scientifique du Liban [Lebanon] (CNRS-L), Istituto Nazionale di Geofisica e di Oceanografia Sperimentale (OGS), Institute of Environmental Science and Technology [Barcelona] (ICTA), Universitat Autònoma de Barcelona (UAB), and Université de Guyane (UG)-Université des Antilles (UA)-Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)-Université de Guyane (UG)-Université des Antilles (UA)-Institut de Recherche pour le Développement (IRD)-Université de Perpignan Via Domitia (UPVD)-Avignon Université (AU)-Université de La Réunion (UR)-Université de Montpellier (UM)
- Subjects
0106 biological sciences ,Mediterranean climate ,Water mass ,010504 meteorology & atmospheric sciences ,010604 marine biology & hydrobiology ,Climate Change ,[SDE.MCG]Environmental Sciences/Global Changes ,Climate change ,Water Masses ,01 natural sciences ,MIX Approach ,Oceanography ,Mediterranean sea ,Mixing Coefficient ,13. Climate action ,Mediterranean Sea ,Seawater ,14. Life underwater ,Steady state (chemistry) ,Seawater Circulation ,Surface water ,Geology ,Mixing (physics) ,0105 earth and related environmental sciences - Abstract
International audience; Most global ocean models are based on the assumption of a " steady state " ocean. Here, we investigate the validation of this hypothesis for the anthropized Mediterranean Sea. In order to do so, we calculated the mixing coefficients of the water masses detected in this sea via an optimum multiparameter analysis referred to as the MIX approach, using data from the BOUM (2008) and MedSeA (2013) cruises. The comparison of the mixing coefficients of each water mass, between 2008 and 2013, indicates that some of their proportions have significantly changed. Surface water mass proportions did not change significantly (∆ 0.05-0.1), while intermediate and deep water mass mixing coefficients of both Eastern and Western basins were significantly modified (~∆ 0.35). This study clearly shows that the Mediterranean seawater is not in a " steady state " .
- Published
- 2015