Waves breaking on rocks

Altimetry services

Waves breaking on rocks
Waves breaking on rocks

Altimetry data can be used to determine sea and lake surface height, significant wave height, surface wind speed, and sea ice height and thickness.

Last Updated

01 April 2021

Published on

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.

 Altimeter waveforms of Sentinel-3A for a pass over the Arctic. The different response to sea ice, land, and open ocean can be seen.
Figure 1: Altimeter waveforms of Sentinel-3A for a pass over the Arctic. The different response to sea ice, land, and open ocean can be seen.

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
Marine nowcasting
Operational wave forecasting
Slow Time Critical (STC) 48 hours More accurate Sea Surface Height (SSH) Operational oceanography
Seasonal Forecasting
Non Time Critical (NTC) 30 days Most accurate Sea Surface Height (SSH) Sea level monitoring
Climate monitoring
Climate research
 
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Processing baselines and marine products overview

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