'''Short description''': The BLKSEA_MULTIYEAR_PHY_007_004 product provides monthly and daily ocean fields for the Black Sea basin starting from 01/01/1993. The hydrodynamical core is based on NEMO general circulation ocean model, implemented in the BS domain with horizontal resolution of 1/27° x 1/36° and 31 vertical levels. NEMO is forced by atmospheric surface fluxes computed by bulk formulation using ECMWF ERA5 atmospheric fields at the resolution of 0.25° in space and 1-h in time. The current version has closed boundary at the Bosporus Strait. The model is online coupled to OceanVar assimilation scheme to assimilate sea level anomaly along-track observations from CMEMS and available in situ vertical profiles of temperature and salinity from both SeaDataNet and CMEMS datasets. '''Product Citation''': Please refer to our Technical FAQ for citing products. http://marine.copernicus.eu/faq/cite-cmems-products-cmems-credit/?idpage=169'''DOI (Product)''': https://doi.org/10.25423/CMCC/BLKSEA_MULTIYEAR_PHY_007_004