Processing and validation of the ERS-1 radar altimeter data at the Italian PAF

As a result of the activity developed at the Italian PAF (Processing and Archiving Facility) in order to process the ERS Radar Altimeter data, the off-line product ERS-1/2.ALT-MPR has been defined. The authors describe the validation activity that has been carried out at I-PAF in order to check the scientific quality of the product over different case studies.