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Absolute calibration of Sentinel-3A and Jason-3 altimeters with sea-surface and transponder techniques in west Crete, Greece

Mertikas Stylianos, Donlon Craig, Femenias Pierre, Mavrocordatos Constantin, Galanakis Demitris, Guinle Thierry, Boy Francois, Tripolitsiotis Achilleas, Frantzis Xenofon, Tziavos, Ilias N, Vergos, Georgios S

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URIhttp://purl.tuc.gr/dl/dias/3F8CE2AF-82A1-4570-999A-6F937408EB66-
Identifierhttps://doi.org/10.1007/1345_2019_63-
Identifierhttps://link.springer.com/chapter/10.1007/1345_2019_63-
Languageen-
Extent7 pagesen
TitleAbsolute calibration of Sentinel-3A and Jason-3 altimeters with sea-surface and transponder techniques in west Crete, Greeceen
CreatorMertikas Stylianosen
CreatorΜερτικας Στυλιανοςel
CreatorDonlon Craigen
CreatorFemenias Pierreen
CreatorMavrocordatos Constantinen
CreatorGalanakis Demitrisen
CreatorGuinle Thierryen
CreatorBoy Francoisen
CreatorTripolitsiotis Achilleasen
CreatorΤριπολιτσιωτης Αχιλλεαςel
CreatorFrantzis Xenofonen
CreatorΦραντζης Ξενοφωνel
CreatorTziavos, Ilias Nen
CreatorVergos, Georgios Sen
PublisherSpringer Natureen
Content SummaryThis work presents the latest absolute and relative calibrations for the altimeters of the Sentinel-3A and Jason-3 at the Permanent Facility for Altimeter Calibration in west Crete, Greece. Results have been determined at first with the transponder at the CDN1 Cal/Val site on the mountains of west Crete using the ascending Sentinel-3A Pass No. 14 and the descending Jason-3 Pass No.18. Then, sea-surface calibration has been carried out with the descending Sentinel-3A Pass No. 335 and the ascending Jason-3 Pass No.109 based on the Cal/Val facility on Gavdos island. For Sentinel-3A results have been established for cycles 3–27 using Level 2 (Level 0 for transponder) and Non-Time Critical data. For Jason-3, cycles 5–80 and the S-GDR-D data have been worked with the transponder calibration, while for the results with sea-surface calibration, cycles 1–80 with the I-GDR-D data have been implemented. Sentinel-3A produces biases of the order of a few mm either with the transponder (+2.7 mm) or with the sea-surface calibration (7.3 mm and −4.4 mm). The altimeter of Jason-3 presents a range bias at +22.7 mm (No.18) with the transponder and −36.7 mm for the bias in sea-surface height, respectively. Finally, comparison of sea-surface heights observed by Sentinel-3A relative to Jason-3 demonstrates a difference of +4 cm within a period of ±3 days about 20 km south of Gavdos.en
Type of ItemΠλήρης Δημοσίευση σε Συνέδριοel
Type of ItemConference Full Paperen
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2022-07-19-
Date of Publication2018-
SubjectCalibrationen
SubjectJason-3en
SubjectSea-surfaceen
SubjectSentinel-3Aen
SubjectTransponderen
SubjectValidationen
Bibliographic CitationS. P. Mertikas, C. Donlon, P. Femenias, C. Mavrocordatos, D. Galanakis, T. Guinle, F. Boy, A. Tripolitsiotis, X. Frantzis, I. N. Tziavos, and G. S. Vergos, “Absolute calibration of Sentinel-3A and Jason-3 altimeters with sea-surface and transponder techniques in west Crete, Greece,” in Fiducial Reference Measurements for Altimetry, vol 150, International Association of Geodesy Symposia, S. Mertikas, R. Pail, Eds., Cham, Switzerland: Springer Nature, 2020, pp. 41–47, doi: 10.1007/1345_2019_63.en

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