NOAA NOAA CoastWatch • OceanWatch

Sea Surface Height (SSH)


CoastWatch NOAA

Help Desk email


(301) 683-3335


Satellite altimeters use active radar to observe the surface height of the ocean which is not smooth or flat. Fluid hills and valleys deviate from a reference (mean geoid) height at the ocean surface. These vertical gradients are of interest for sea level rise, storm predictions, ocean currents, ecosystem ecology and other applications.

The following list shows the various Sea Surface Height data products available from NOAA CoastWatch.

• Sea level anomaly, L3 multi-mission optimal interpolation




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