The site is an online information system on the Sahel Rainfall Index and Maximal Flood Extent of large seasonal floodplains in the western Sahel. Both are updated annually, as soon new data are available. For that reason check the site twice a year, in December (updated information on the most recent flooding season) and March (updated information on the most recent rainy season). For additional information or questions please contact A&W (see contact information, refer to Sahel Rainfall Index).

The site is developed by Altenburg & Wymenga ecological consultants, financially supported by Vogelbescherming Nederland. Editorial advice was given by Alice McBride. Historical data on water levels in the Senegal Basin and the Upper Niger Basin are provided by the OMVS and DNH Mali through collaboration in the framework of various projects (see Sources and information).