数据描述

The NOAA Extended Reconstructed Sea Surface Temperature (ERSST) dataset version 5 provides a global monthly sea surface temperature analysis from January 1854 to the present. Derived from the International Comprehensive Ocean-Atmosphere Dataset (ICOADS), this dataset uses statistical methods to fill missing data on a 2° latitude by 2° longitude grid, covering latitudes from 89°N to 89°S and longitudes from 0°E to 358°E. ERSSTv5 improves upon previous versions by incorporating updated data sources, including Argo floats and buoy SST observations, and enhancing spatial and temporal variability through refined statistical methods. The dataset is optimized for long-term global and basin-wide climate studies, offering consistent and reliable temperature records after 1880, despite damping in the early years due to sparse data. It is widely used for understanding historical SST trends, climate research, and applications requiring high-quality, long-term marine datasets.