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Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/AB294BE1-2F92-476D-A5BE-49385FC92097 | ||
| Year | 2004 | ||
| Type of Item | Conference Full Paper | ||
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| Bibliographic Citation | S. P. Mertikas, E. C. Pavlis, I. N. Tziavos, E. Koutroulis, K. Palamartchouk, T. Papadopoulos, G. S. Vergos, “Permanent facility for calibration/validation of satellite altimetry: GAVDOS”, presented at 11th SPIE International Symposium on Remote Sensing, 2004. https://doi.org/10.1117/12.566361 | ||
| Appears in Collections |
An absolute sea-level monitoring and altimeter calibration permanent facility has been established on the isle ofGavdos, 50 km south of the island of Crete, Greece. This calibration/validation facility has been chosen becauseGavdos is under a crossing point of the ground-tracks of Jason-1 satellites, and adjacent to an Envisat pass.Satellite altimeter missions are evaluated at that site using external measurements from tide gauges, GPS,a DORIS beacon, meteorological sensors, wave-height sensors, airborne campaigns for gravity and sea-surfacetopography, water-vapour radiometry, solar atmospheric spectrometry, GPS buoys, altimeter transponder, SatelliteLaser Ranging, etc. The mean sea level and the earth’s tectonic deformation field in the region have alsobeen determined accurately.Comparison over the cycles 70 to 77 of the Jason-1 satellite indicate that its absolute mean bias for thesea-surface heights is 134 mm ±20 mm. The GAVDOS project has started in December 2001 and has been inthe context of an international calibration/validation effort of the Jason-1 Science Working Team.
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