Articles | Volume 18, issue 7
https://doi.org/10.5194/essd-18-5303-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-18-5303-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Decadal ocean observations in the Northwestern Mediterranean: insights from the MOOSE-GE cruises
Laurent Coppola
CORRESPONDING AUTHOR
Sorbonne Université, CNRS, OSU STAMAR, UAR2017, 4 place Jussieu, 75252 Paris CEDEX 05, France
Anthony Bosse
Aix Marseille Université, CNRS, IRD, Toulon Université, MIO, Marseille, France
Thibaut Wagener
Aix Marseille Université, CNRS, IRD, Toulon Université, MIO, Marseille, France
Dominique Lefevre
Aix Marseille Université, CNRS, IRD, Toulon Université, MIO, Marseille, France
Magali Lescot
Aix Marseille Université, CNRS, IRD, Toulon Université, MIO, Marseille, France
François Carlotti
Aix Marseille Université, CNRS, IRD, Toulon Université, MIO, Marseille, France
deceased, François Carlotti on 3 January 2026 and Pascal Conan on 5 August 2025
Fabien Lombard
Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche (LOV), 06230 Villefranche-sur-Mer, France
Lionel Guidi
Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche (LOV), 06230 Villefranche-sur-Mer, France
Fabrice Not
Sorbonne Université, CNRS, Station Biologique de Roscoff, AD2M, 29680 Roscoff, France
Xavier Durrieu de Madron
Université de Perpignan Via Domitia, CNRS, CEFREM, Perpignan, France
Pascal Conan
Sorbonne Université, CNRS, OSU STAMAR, UAR2017, 4 place Jussieu, 75252 Paris CEDEX 05, France
deceased, François Carlotti on 3 January 2026 and Pascal Conan on 5 August 2025
Mireille Pujo-Pay
Sorbonne Université, CNRS, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique de Banyuls-sur-Mer, 66650 Banyuls-sur-Mer, France
Caroline Ulses
Université de Toulouse, CNES, CNRS, IRD, LEGOS, Toulouse, France
Samuel Somot
Météo-France, CNRS, Université de Toulouse, CNRM, Toulouse, France
Claude Estournel
Université de Toulouse, CNES, CNRS, IRD, LEGOS, Toulouse, France
Emilie Diamond Riquier
Sorbonne Université, CNRS, Station Biologique de Roscoff, AD2M, 29680 Roscoff, France
Céline Laus
Sorbonne Université, CNRS, Station Biologique de Roscoff, AD2M, 29680 Roscoff, France
Nathalie Leblond
Sorbonne Université, CNRS, Institut de la Mer de Villefranche (IMEV), 06230 Villefranche-sur-Mer, France
Matthieu Labaste
Sorbonne Université, CNRS, IRD, MNHN, LOCEAN, 75005 Paris, France
Patrice Bretel
Sorbonne Université, CNRS, IRD, MNHN, LOCEAN, 75005 Paris, France
Melek Golbol
Sorbonne Université, CNRS, IRD, MNHN, LOCEAN, 75005 Paris, France
Stephane Kunesch
Université de Perpignan Via Domitia, CNRS, CEFREM, Perpignan, France
Jennifer Sola
Université de Perpignan Via Domitia, CNRS, CEFREM, Perpignan, France
Laure Chirurgien
Aix Marseille Université, CNRS, IRD, Toulon Université, MIO, Marseille, France
Sandra Nunige
Aix Marseille Université, CNRS, IRD, Toulon Université, MIO, Marseille, France
Sarah Romac
Sorbonne Université, CNRS, Station Biologique de Roscoff, AD2M, 29680 Roscoff, France
Pierre Testor
Sorbonne Université, CNRS, IRD, MNHN, LOCEAN, 75005 Paris, France
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Latest update: 22 Jul 2026
Short summary
The Mediterranean Ocean Observing System for the Environment program investigated the fast-changing northwestern Mediterranean through annual cruises from 2010 to 2024. Using consistent surface-to-seafloor measurements, checked against fixed and autonomous platforms, we find intermediate and deep waters warming and getting saltier, oxygen declining and dissolved carbon rising, indicating progressing acidification. These trends can reshape ecosystems and stress the need for sustained monitoring.
The Mediterranean Ocean Observing System for the Environment program investigated the...
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