The OISSS dataset is open for free unrestricted use. The dataset is a research quality product. Errors reported to the authors by users will be published and corrected in the next update of the dataset.
OISSS Product Guide:
Melnichenko, O., P. Hacker, T. Meissner, F. Wentz, Julian Schanze, and Jesse Anderson: Multi-Mission Sea Surface Salinity Optimum interpolation (OISSS) Analysis Version 3.0, ESR Technical Report ESR-TR-2026-001, May 1, 2026, 29p. https://oisss.esr.org/data/docs/OISSS_Product_Notes_v3.pdf
Journal Reference:
Melnichenko, O., P. Hacker, N. Maximenko, G. Lagerloef, and J. Potemra, 2016: Optimum interpolation analysis of Aquarius sea surface salinity, J. Geophys. Res. Oceans, 121, 602-616, https://doi.org/10.1002/2015JC011343
Comments, questions regarding the OISSS dataset and requests for the data can be directed to Dr. Oleg Melnichenko at oleg@esr.org