coastMap offers campaign data, model analysis and thematic maps predominantly in the Biogeosciences. Spotlights explain in a nutshell important topics of the research conducted for the interested public. The portal offers applications to visualise and download field and laboratory work and to connect the information with interactive maps. Filter functions allow the user to search for general topics like a marine field of interest or single criteria, for example a specific ship campaign or one of 1000 measured parameters. The Model Analysis Tool uses a "Big Data" approach and allows expert of different disciplines to access detailed and high-resolution oceanographic model data. An interface is provided to statistically examine and download subsets of model-derived data.