NASA

National Aeronautics and Space Administration

Experimental Eddy Products

Example of MESI product [zoomed from global] centered on the Atlantic Ocean.

The sea surface height team in NOAA’s Laboratory for Satellite Altimetry produces two experimental mesoscale eddy products:

Multiparameter Eddy Significance Index (MESI)
MUltiparameter NRT System for Tracking Eddies Retroactively (MUNSTER)

AMSR2 - Sea Ice Concentration

Polar Stereographic map projection of Sea Ice concentration of the Arctic ocean and Antarctica

NOAA CoastWatch / OceanWatch / PolarWatch Sea Ice Concentration, Level 3, daily and daily 4-day rolling merge, polar stereographic mapped composites - AMSR-2

Sea Surface Salinity - Near Real Time - SMAP

CoastWatch/OceanWatch produces 0.25-degree longitude/latitude Level-3 gridded sea-surface salinity (SSS) daily mean dataset by box averaging Soil Moisture Active Passive (SMAP) satellite observations over the global ocean.

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2026-01-14	New release of CoastWatch Utilities software (v4.1.5)
2026-01-14	Possible service interruption January 20th 1200 -1700Z
2025-11-21	Switch from Himawari-8 to Himawari-9
2025-09-11	Possible disruptions in ASCAT wind and SEVIRI SST products