Copernicus Sentinel-3 provides satellite observations of ocean and land colour, sea and land surface temperature, and sea surface topography. This record focuses on imagery and ocean-colour products available through the Copernicus Data Space Ecosystem. Spatial resolution varies by instrument and product; OLCI ocean-colour products are available at approximately 300 m (full resolution) and 1,200 m (reduced resolution).

The Sentinel-3 OLCI Level-2 Water Full Resolution (OL_2_WFR) product provides water and atmosphere geophysical parameters derived from OLCI observations at approximately 300 m spatial resolution. Water products include ocean-colour parameters such as chlorophyll and total suspended matter concentration, supporting the assessment of coastal and ocean water conditions.