Altimetry data can be used to determine sea and lake surface height, significant wave height, surface wind speed, and sea ice height and thickness.
01 April 2021
27 July 2018
For full guidance on SRAL see the Sentinel-3 SRAL Marine User Handbook.
The Product Format Specification and other relevant documentation can be found in the Altimetry Resources page.
Main products, key variables and applications
|Products||Timeliness||Main variables||Main applications|
|Near Real Time (NRT)||3 hours||Significant Wave Height (SWH)
Surface Wind Speed (WIND)
Sea Surface Height (SSH)
|Real time operational oceanography
Operational wave forecasting
|Slow Time Critical (STC)||48 hours||More accurate Sea Surface Height (SSH)||Operational oceanography
|Non Time Critical (NTC)||30 days||Most accurate Sea Surface Height (SSH)||Sea level monitoring
Ocean colour services
Providing information on ocean living ecosystems, water quality and sediment dynamics.
Our training activities prepare and support the user community to apply EUMETSAT data services and products, including Copernicus.
The Earth observation satellites contributing data to Copernicus are split into two groups of missions: the Copernicus Sentinels and the contributing missions.