The MERIS Level 1b products are top of atmosphere radiances in 15 spectral bands, correcting for instrument errors, calibrated and geolocated (annotation, no mapping). Binary flag information is added to further describe the pixels (land-ocean, coastline, bright and other quality information). On a tie point raster meteorological and geometrical information is included in the product. A detailed description of the MERIS Level 1b algorithms and products can be found in the MERIS Handbook (Level 1b section).
The FR and RR Level 1b products are made availabe to users throught the MERCI online system, ftp and through EOLI-SA.
Before release of the products to users the data were quality controlled. Black-listed products are totally corrupt and not released. Segregated products contain errors are excluded from normal distribution to avoid problems when users perform automated bulk processing. The segregated products are available to users on request.