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Recent Developments for the estimation of the altimeterbias for the Jason-1&2 satellites using the dedicated calibration site at Gavdos

Partsinevelos Panagiotis, Mertikas Stelios, Tripolitsiotis Achilleas, Ioannides Rigas , Tziavos Ilias N. , Vergos Georgios S. , Hausleitner Walter

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URIhttp://purl.tuc.gr/dl/dias/078DA188-397F-4606-B7EC-AEC4C5A55D55-
Αναγνωριστικόhttps://doi.org/ 10.1117/12.830403-
Γλώσσαen-
ΤίτλοςRecent Developments for the estimation of the altimeter bias for the Jason-1&2 satellites using the dedicated calibration site at Gavdosen
ΔημιουργόςPartsinevelos Panagiotisen
ΔημιουργόςΠαρτσινεβελος Παναγιωτηςel
ΔημιουργόςMertikas Steliosen
ΔημιουργόςΜερτικας Στελιοςel
ΔημιουργόςTripolitsiotis Achilleasen
ΔημιουργόςΤριπολιτσιωτης Αχιλλεαςel
ΔημιουργόςIoannides Rigas en
ΔημιουργόςTziavos Ilias N. en
ΔημιουργόςVergos Georgios S. en
ΔημιουργόςHausleitner Walter en
ΠερίληψηThe dedicated calibration site for satellite radar altimeters in Gavdos has been operational as of 2004. The small island of Gavdos is located along a repeating ground track of Jason satellites (crossover point No 109 ascending and No. 18 descending pass and adjacent to Envisat), and where the altimeter and radiometer footprints do not experience significant land intrusion. The purpose of such permanent Cal/Val facility is to calibrate the sea-surface height and ancillary measurements made by the satellite as it passes overhead, by using observations from tide gauges, GPS, DORIS and other sensors directly placed under the satellite ground tracks. The successful launch of Jason-2 satellite (20 June, 2008) initiated its calibration-validation phase. This was achieved having the two satellites flying with less than one minute difference and in the same orbit. Using the Gavdos calibration facility the following have been determined: (1) the absolute altimeter bias of Jason-1 satellite for the cycles 209-259; using GDR-C data; (2) the absolute altimeter bias of Jason-2 satellite for the cycles 2-28 using GDR-A data ; (3) the inter- mission bias for the period July 2008 – January 2009. The expansion of the Gavdos Cal/Val facilities with the deployment of a new site in the south of Crete and along pass No. 109 is also presented in this work.en
ΤύποςΠλήρης Δημοσίευση σε Συνέδριοel
ΤύποςConference Full Paperen
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-11-13-
Ημερομηνία Δημοσίευσης2009-
Βιβλιογραφική ΑναφοράS. P. Mertikas, R. Ioannides, X. Frantzis, A. Tripolitsiotis, P. Partsinevelos, I. N. Tziavos, G. S. Vergos, W. Hausleitner, "Recent Developments for the estimation of the altimeter bias for the Jason-1&2 satellites using the dedicated calibration site at Gavdos," in SPIE, Remote Sensing of the Ocean, Sea Ice, and Land Water Regions 2009. doi: 10.1117/12.830403en

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