Data is available to download through HTTPS. Please follow the links below to download the data set of your choice. Data is in NetCDF format. For more infomation, see readme.pdf



Salinity Gradient Data Policy

The salinity gradients data are supported by NASA Ocean Salinity Science Team. While the data are freely accessible, your acknowledgements help us to demonstrate the value of this dataset to the scientific community. Your acknowledgements are also needed to ensure we get continuous support from NASA to maintain the salinity gradient website. When using these data in a publication, we request that the following acknowledgement be given:

Salinity gradient data are produced by Earth & Space Research and sponsored by the NASA Ocean Salinity Science Team. Data are available at https://www.esr.org/data-products/salgrad




Salinity gradient calculated from Level-3 

Monthly Data

We provide monthly global data files for the following Instruments:  Aquarius, SMAP, SMAP RF, SMOS, and Argo.    For more information on the monthly files see readme.pdf

The monthly datasets are available at:  https://salinitydata.org/files/data/monthly/Salinity/

Daily Data

We provide daily global data sets, organized by year, for the following Instruments:  Aquarius, SMAP, and SMOS.

The daily datasets are available at https://salinitydata.org/files/data/daily/Salinity/