It's World Water Day! Did you know that 96.5% of the world's water is in the salty ocean, leaving only a small remaining amount that is fresh? This dataset shows the salinity (concentration of salt) differences throughout the ocean. These variations in salinity have large-scale effects on Earth's water cycle and ocean circulation. Read more here: https://sos.noaa.gov/datasets/sea-surface-salinity/ | NOAA Science On a Sphere