Maps of sea surface salinity are based on the latest algorithms (
V5) developed by the Aquarius Calibration/Validation working group.
These maps are produced by Python packages cartopy and matplotlib, and include the following projections:
Click on the images (below) for a closer view.
In the maps, reds show higher salinity (38 grams per kilogram) and purples show relatively low salinity (33 grams per kilogram).