The GAVDOS mean sea level and altimeter calibration facility: Results for Jason-1The GAVDOS mean sea level and altimeter calibration facility: Results for Jason-1 Peer-Reviewed Journal Publication Δημοσίευση σε Περιοδικό με Κριτές 2015-10-192004enThe location of the GAVDOS facility is under a crossing point of the original ground-tracks of TOPEX/Poseidon and the present ones for Jason-1, and adjacent to an ENVISAT pass, about 50 km south of Crete, Greece. Ground observations and altimetry comparisons over cycles 70 to 90, indicate that a preliminary estimate of the absolute measurement bias for the Jason-1 altimeter is 144.7 ± 15 mm. Comparison of Jason microwave radiometer data from cycles 37 and 62, with locally collected water vapor radiometer and solar spectrometer observations indicate a 1–2 mm agreement. http://creativecommons.org/licenses/by/4.0/Marine Geodesy273-4631-655 Mertikas Stelios Μερτικας Στελιος Pavlis Evaggelos Παυλης Ευαγγελος Taylor & Francis