Minimize MWR Products Availability Level 1

The processing of Radar Altimeter and ATSR/MW (microwave radiometer) data is performed in two steps.

The first step of the processing consists in transforming raw data (recorded on board the satellite) in physical quantities, time tagged, located and corrected for the instrumental effects, and in storing the following internal products:

- OIP (off-line intermediate product) for the radar altimeter: altimeter range, backscatter coefficient, significant wave height over oceansurfaces, and all instrumental corrections.

- MBT (microwave Brightness temperatures) for the ATSR/MW: microwave brightness temperatures at 23.8 and 36.5 GHz.

The second step of the processing consists in computing the environmental corrections and merging the precise orbit. The resulting data are:

- OPR (Ocean Product) for the radar altimeter : Same as OIP but enhanced with all geophysical corrections and precise orbit altitude. All the geophysical corrections are supplied together with the uncorrected measures, to allow the user the possibility of applying different corrections.

- VLC (Vapor Liquid Content) for the ATSR/MW : geophysical parameters water vapour and liquid water content.

[From "RA/ATSR products - User Manual", Ref.: C2-MUT-A-01-IF V, 2.3]