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Seewater Aviso

Welcome to the Aviso Product Visualizer.

Seewater provides the opportunity to visualize some of the key products distributed by Aviso.

The products are divided into four categories:

  • Ocean Surface Topography
  • Ocean Wind and Waves
  • Ocean Other Variables
  • Atmosphere.





Products currently available on Seewater

  • Maps of Sea Level Anomalies (MSLA) global and regional
  • Mean Sea Surface (MSS)
  • Mean Dynamic Topography (MDT)
  • SWOT sea surface height anomalies (L2/L3 products)
  • Experimental along-track products (L3 products)
  • Maps of wind velocities
  • Maps of wave heights
  • CFOSAT/SWIM near real-time wave heights (L2P products)
  • Maps of Filaments (FSLE)
  • Sargassum Floating Algae Index (FAI)
  • Maps of Dynamic Atmospheric Correction (DAC)

User manual

To learn more about Seewater, refer to the online documentation available at this link.


  • SWOT L2 and L3 products, Filament Maps (FSLE), and CFOSAT/SWIM Wave products take longer to display than other products due to their high resolution.

  • Some examples of product visualization:
  • Additional resources proposed by CNES for searching SWOT passes are available on Github. To launch the "Search SWOT passes" application, click here.


Seewater Aviso is a visualization tool funded by CNES. It is developped, maintened and operated by CLS.

Comments and Suggestions

Suggestions to improve our service are welcome at the following address : aviso(at)

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