Multi-Satellite Altimeter Data Analysis and Unification in the Mediterranean Sea

For long-term sea level variability studies a single altimetric mission of high accuracy and long duration is the ideal situation. In reality, several altimetric missions have been flown and the corresponding sea level heights present an increasing accuracy, mainly due to the improved orbital and geophysical corrections applied to the measured data. At least one different preprocessing is used for each mission, this makes the data not homogeneous.