A Comparison of Tide Gauge and Satellite Altimetry Derived Sea-level for Two Eastern Mediterranean Islands
Abstract
The European Union project GAVDOS is in the process of establishing a radar altimeter calibration and sea-level monitoring site on the island of Gavdos, Crete. This site is in support of the JASON and ENVISAT satellites and within the context of the European Global Sea-level Monitoring System (EUROGLOSS) initiative. The first sea level measurements from this station are only just available and are included here alongside a longer time series from the MedGloss station in Lemessos, Cyprus. This data was collated in order to carry out a sea-level comparison study with a long time series of altimetery derived sea-level for the same areas and a more synoptic view of the Eastern Mediterranean. The altimetry derived sea level data was from the processing and geophysical correction of Topex Poseidon and the relatively recent Jason-1 data referring to satellite tracks overpassing the stations. Similarities and differences observed in the records are discussed and the relative merits and problems with both methodologies of sea level measurement which are relevant for the ongoing calibration work in the GAVDOS project are highlighted.
- Publication:
-
EGS - AGU - EUG Joint Assembly
- Pub Date:
- April 2003
- Bibcode:
- 2003EAEJA....13157B