Global satellite-based sea and sea-ice surface temperatures since 1982
Pia Englyst·Jacob L. Høyer·Ida L. Olsen·Guisella Gacitúa·Alex Hayward·Nishka Dasgupta·Johan H. Scheller·Ioanna Karagali
Abstract A 43-year Climate Data Record (CDR) of combined global sea and sea-ice surface temperature (SST/IST) from 1982 to 2024 has been produced from satellite observations within the Copernicus Climate Change Service (C3S). Infrared and microwave satellite data are integrated using optimal interpolation to provide daily, gap-free (L4, 0.05 ° ) global SST/IST fields. Consistent and accurate sea-ice concentration (SIC) fields are derived by combining passive microwave SIC CDRs with sea ice chart