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, J. Potemra, T. Meissner, and F. Wentz: Multi-Mission Sea Surface Salinity Optimum interpolation (OISSS) Analysis Version 2.0, ESR Technical Report ESR-TR-2023-001, February 1, 2023, 26p. http://oisss.esr.org/data/docs/OISSS_Product_Notes_v2.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