Daily gridded products provided in near real time since 28 March 2022 obtained by ABI sensor onboard GOES-16 satellite, produced in the frame of a jointed initiative CLS-Hygeos with the support of the CNES. Each map represents the sargassum presence index averaged over one day (dm dataset). Also distributed: the maps of Sargassum FAI anomaly computed between 10h and 19h50 ITC every 10 minutes (hr dataset). One day contains 60 maps.