10th edition of the Copernicus Ocean State Report (OSR10)
10th edition of the Copernicus Ocean State Report (OSR10)
Editor(s): Marilaure Grégoire (University of Liège, Belgium), Pierre Brasseur (CNRS, France), Gilles Garric (Mercator Ocean International, France​​​​​​​), Johannes Karstensen (GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany), Piero Lionello (University of Salento, Italy), Marta Marcos (University of the Balearic Islands, Spain), Pierre-Marie Poulain (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), Italy), and Joanna Staneva (Helmholtz-Zentrum Hereon, Germany)
As part of the Copernicus Marine Service, the annual Copernicus Ocean State Report (OSR) launched in 2015 is the key tool of its ocean reporting framework. The OSR reports on the state, variability, and ongoing changes in the marine environment of the global ocean and the European regional seas over the past decades up to close to real time. Using observation-based (remote sensing, in situ) and ocean reanalysis data, the OSR provides a comprehensive 4-dimensional (latitude, longitude, depth, and time) analysis of the Blue, Green, and White Ocean. The OSR is intended to act as a reference, providing a unique ocean monitoring dashboard for the scientific community and for policy makers and others with decision making responsibilities.

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30 Sep 2025
Decadal variability in the Eastern and Western Mediterranean sea level trends
Federica Borile, Vladyslav Lyubartsev, Begoña Pérez Gómez, Jue Lin-Ye, Anna Mangilli, Ali Aydogdu, Emanuela Clementi, and Paolo Oddo
State Planet Discuss., https://doi.org/10.5194/sp-2025-2,https://doi.org/10.5194/sp-2025-2, 2025
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30 Sep 2025
Establishing a Monitoring Approach for Marine Heatwaves in the Black and Mediterranean Seas
Leonardo Lima, Rafael Menezes, Ehsan Sadighrad, Ronan McAdam, Filipe Costa, Pietro Miraglio, Mehmet Ilicak, Eric Jansen, Ali Aydogdu, Francesco Maicu, and Emanuela Clementi
State Planet Discuss., https://doi.org/10.5194/sp-2025-6,https://doi.org/10.5194/sp-2025-6, 2025
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29 Sep 2025
Freshening of the Barents Sea during the recent decade and its impact on the outflow of dense waters
Roshin P. Raj, Vidar S. Lien, Sourav Chatterjee, Saradhy Surendran, Antonio Bonaduce, and Laurent Bertino
State Planet Discuss., https://doi.org/10.5194/sp-2025-18,https://doi.org/10.5194/sp-2025-18, 2025
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25 Sep 2025
Metocean study for the planning of the FSRU terminal: a case study at the Estonian coast of the Gulf of Finland
Urmas Raudsepp, Ilja Maljutenko, Jan-Victor Björkqvist, Amirhossein Barzandeh, Sander Rikka, Aarne Männik, Siim Pärt, Priidik Lagemaa, Victor Alari, Kaimo Vahter, and Rivo Uiboupin
State Planet Discuss., https://doi.org/10.5194/sp-2025-8,https://doi.org/10.5194/sp-2025-8, 2025
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25 Sep 2025
Long term trends and variability of the mixed layer depth in the Baltic Sea
Urmas Raudsepp, Ulvi Ahmadov, Ilja Maljutenko, Amirhossein Barzandeh, Mariliis Kõuts, and Priidik Lagemaa
State Planet Discuss., https://doi.org/10.5194/sp-2025-7,https://doi.org/10.5194/sp-2025-7, 2025
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22 Sep 2025
Towards a Multi-Product Methodology for Calculating the Ocean Monitoring Indicator of SST Extremes in the IBI Region
Álvaro de Pascual Collar, Axel Alonso Valle, Alex Gallardo, Marta de Alfonso Alonso-Muñoyerro, Begoña Pérez Gómez, Stefania Ciliberti, and Marcos G. Sotillo
State Planet Discuss., https://doi.org/10.5194/sp-2025-16,https://doi.org/10.5194/sp-2025-16, 2025
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22 Sep 2025
Impact of Storm Louis on two Spanish harbours: a multi-sensor approach
Pablo Lorente, Garbiñe Ayensa, Marta De Alfonso, Samuel Galán, Pilar Gil, Fernando Manzano, Anna Magdalena Matulka, Pedro Montero, Verónica Morales-Márquez, Begoña Pérez-Gómez, Cristina Pérez-Íñigo, Susana Pérez-Rubio, and María Isabel Ruiz
State Planet Discuss., https://doi.org/10.5194/sp-2025-5,https://doi.org/10.5194/sp-2025-5, 2025
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19 Sep 2025
Record low sea levels in the Bothnian Bay in November 2024
Laura Tuomi, Milla Johansson, Andrew Twelves, Mika Rantanen, Priidik Lagemaa, Hedi Kanarik, Jani Särkkä, Urmas Raudsepp, and Antti Westerlund
State Planet Discuss., https://doi.org/10.5194/sp-2025-12,https://doi.org/10.5194/sp-2025-12, 2025
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15 Sep 2025
How extreme river discharge events shape coastal biogeochemical dynamics: the 2024 northern Adriatic case
Valeria Di Biagio, Stefano Querin, Carolina Amadio, Giorgio Bolzon, Laura Feudale, Stefano Piani, Simone Spada, and Gianpiero Cossarini
State Planet Discuss., https://doi.org/10.5194/sp-2025-9,https://doi.org/10.5194/sp-2025-9, 2025
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15 Sep 2025
Three decades of marine bioregions evolution through analysis of phytoplankton phenology
Wilhem Riom, Nicolas Mayot, Alexandre Mignot, Vincent Taillandier, and Fabrizio D'Ortenzio
State Planet Discuss., https://doi.org/10.5194/sp-2025-4,https://doi.org/10.5194/sp-2025-4, 2025
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