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The 2013 Ibiza Calibration Campaign of Jason-2 and SARAL Altimeters

F. Frappart 1 Nicolas Roussel 2 R. Biancale 3 J.J. Martinez Benjamin 4 Florian Mercier 5 F. Perosanz 1 J. Garate Pasquin 6 J. Martin Davila 6 B. Perez Gomez 7 C. Gracia Gomez 4 R. Lopez Bravo 4 A. Tapia Gomez 4 J. Gili Ripoll 4 M. Hernandez Pajares 4 M. Salazar Lino 8 P. Bonnefond 9, 10 I. Valles Casanova 4
1 GET - Géosciences Environnement Toulouse
2 MINT2 - Méthodes et outils pour l'Interaction à gestes
Inria Lille - Nord Europe, CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189
3 GRGS - Groupement de Recherche en Géodésie Spatiale
4 Technical University of Catalogna
5 UH - University of Hawai'i [Honolulu]
6 ROA - Real Instituto y Observatorio de la Armada
7 Puertos de l’Estado
8 Universidade do Porto
9 GEOAZUR 7329 - Géoazur
10 OCA - Observatoire de la Côte d'Azur
Abstract : 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 comprised two phases: the calibration of the GNSS (Global Navigation Satellite System) buoys to estimate the antenna height of each of them and the 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 performed 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.
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Journal articles
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https://hal.archives-ouvertes.fr/hal-01364274
Contributor : Publications Géoazur <>
Submitted on : Monday, September 12, 2016 - 2:47:13 PM
Last modification on : Friday, January 8, 2021 - 10:12:08 AM

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CNRS | OCA | GALILEE | INRIA | OMP-GET | OMP | INSU | UNIV-COTEDAZUR | CRISTAL | UNIV-LILLE | UNIV-TLSE3 | GEOAZUR | METEO

Citation

F. Frappart, Nicolas Roussel, R. Biancale, J.J. Martinez Benjamin, Florian Mercier, et al.. The 2013 Ibiza Calibration Campaign of Jason-2 and SARAL Altimeters. Marine Geodesy, Taylor & Francis, 2015, 38 (1), pp.219-232. ⟨10.1080/01490419.2015.1008711⟩. ⟨hal-01364274⟩

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