ERSST
ERSST, or Extended Reconstruction Sea Surface Temperature, is a global gridded dataset that provides historical reconstructions of sea surface temperature (SST) based on in-situ observations. It is widely used in climate research and monitoring to extend SST records back before the satellite era and to support analyses of long-term temperature trends and variability.
The dataset is produced from the International Comprehensive Ocean–Atmosphere Data Set (ICOADS) observations, including ships, buoys,
Several versions of ERSST exist, with v3b, v4, and v5 representing successive improvements in data coverage,
Applications of ERSST include climate trend analyses, global mean surface temperature calculations, and studies of regional