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NASA 3D Models: Aquarius

Published by National Aeronautics and Space Administration | National Aeronautics and Space Administration | Metadata Last Checked: September 14, 2025 | Last Modified: 2025-03-31
Aquarius is making NASA's first space-based global observations of ocean surface salinity, flying 657 kilometers (408 miles) above Earth in a sun-synchronous polar orbit that repeats every seven days. This NASA Earth System Science Pathfinder mission is mapping global changes in ocean surface salinity with a resolution of 150 kilometers (93 miles), showing how salinity changes from month to month, season to season and year to year. Scientists are combining Aquarius data with in-water measurements to generate operational maps of ocean salinity distribution.

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