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The 2013 Ibiza calibration campaign of Jason-2 and Saral altimeters
Frappart, Frédéric; Roussel, Nicolas; Biancale, Richard; Martínez Benjamín, Juan José; Mercier, Flavien; Pérosanz, Felix; Gárate Pasquín, Jorge; Martin Davila, José; Pérez Gómez, Begoña; Gracia Gómez, Carlos; López Bravo, Rogelio; Tapia Gómez, Ana M.; Gili Ripoll, José Antonio; Hernández Pajares, Manuel; Salazar, Mario; Bonnefond, Pascal; Valles Casanova, I. Berenguer
Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica; Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada IV; Universitat Politècnica de Catalunya. EGEO - Enginyeria Geomàtica; Universitat Politècnica de Catalunya. IonSAT - Grup de determinació Ionosfèrica i navegació per SAtèl·lit i sistemes Terrestres
This study presents the results of the 2013 Ibiza (Western Mediterranean) calibration campaign of Jason-2 and SARAL altimeters. It took place from 14 to 16 September 2013 and was composed of two phases: the calibration of the GNSS (Global Navigation Satellite System) buoys to estimate the antenna height of each of them and absolute calibration to estimate the altimeter bias (i.e., the difference of sea level measured by radar altimetry and GNSS). The first one was achieved in the Ibiza harbor at a close vicinity of the Ibiza tide gauge and the second one was at ˜ 40 km at the northwest of Ibiza Island at a crossover point of Jason-2 and SARAL nominal groundtracks. Five buoys were used to delineate the crossover region and their measurements interpolated at the exact location of each overflight. The overflights occurred two consecutive days: 15 and 16 September 2013 for Jason-2 and SARAL respectively. The GNSS data were processed using precise point positioning technique. The biases found are of (-0.1 ± 0.9) and (-3.1 ± 1.5) cm for Jason-2 and SARAL respectively.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Satèl·lits i ràdioenllaços
Satellite geodesy
satellite altimetry
calibration
GNSS buoys
tide gauge
Geodèsia per satèl·lit
Sistema de posicionament global
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Article - Draft
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