MER-EP UN Decade Project

Marine Environment Reanalyses – Evaluation Project (MER-EP)

MER-EP is a project endorsed by the UN Ocean Decade.

The primary objective of MER-EP is to improve our knowledge of the ocean by understanding and ultimately improving the reliability and usability of global and regional ocean reanalyses^*, including physics, waves, biogeochemistry, and sea ice, based on representative and high-priority use cases identified after extensive discussions with scientific and private ocean reanalyses users.

MER-EP is endorsed under the ForeSea and DITTO programmes of the United Nations Decade of Ocean Science for Sustainable Development (2021-2030) – Ocean Decade.

*Ocean reanalyses are reconstructed past ocean states by combining ocean numerical models and observations through data assimilation techniques. They are key in the seamless ocean information value chain. Thanks to their temporal and spatial consistency, continuity, and high accuracy, ocean reanalyses are widely used for ocean and climate studies in the scientific and private sectors.