This first version is considered as data test that will provide useful insight for near real time production of high space and time resolutions at global and regional scales. Data, documentation, images, and movies are available on Cersat/ Ifremer ftp site (ftp://ftp.ifremer.fr/ifremer/cersat/products/gridded/MWF/L3/ASCAT/Daily/ ) and freely distributed. The data files are in NetCDF-3 format, supported by several scientific softwares.