Clustering Event Nr. 1 (D6.1)

ObsSea4Clim aims to maximise impacts and promote multidisciplinary ocean observing. One way of doing this is by organising clustering events with similar projects and promoting multidisciplinary ocean observation. This deliverable is a report on the Clustering Event Nr. 1 held on 11-12 March 2025, in Sopot, Poland, organised with the sister project, BioEcoOcean. Participants represented more than twenty relevant European and international initiatives and projects, such as BioGeoSea, TipESM, OCEAN ICE, among others. At the event, four sessions were organised to jointly discuss the Essential Ocean Variables (EOVs) concept and a joint contribution to their further development, their application to land-coast-ocean interactions and marine heatwaves. A last session focused on the key challenges in ocean observing.