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The ESA permanent facility for altimetry calibration: monitoring performance of radar altimeters for Sentinel-3A, Sentinel-3B and Jason-3 using transponder and sea-surface calibrations with FRM standards

Mertikas Stylianos, Tripolitsiotis Achilleas, Donlon Craig, Mavrocordatos Constantin, Féménias Pierre, Borde Franck, Frantzis Xenofon, Kokolakis Konstantinos, Guinle Thierry, Vergos, Georgios S, Tziavos, Ilias N, Cullen Robert

Απλή Εγγραφή

URIhttp://purl.tuc.gr/dl/dias/0E1D5842-64C3-41DF-9B9A-2DD9FD81B679-
Αναγνωριστικόhttps://doi.org/10.3390/rs12162642-
Αναγνωριστικόhttps://www.mdpi.com/2072-4292/12/16/2642-
Γλώσσαen-
Μέγεθος39 pagesen
Μέγεθος17,41 megabytesen
ΤίτλοςThe ESA permanent facility for altimetry calibration: monitoring performance of radar altimeters for Sentinel-3A, Sentinel-3B and Jason-3 using transponder and sea-surface calibrations with FRM standardsen
ΔημιουργόςMertikas Stylianosen
ΔημιουργόςΜερτικας Στυλιανοςel
ΔημιουργόςTripolitsiotis Achilleasen
ΔημιουργόςΤριπολιτσιωτης Αχιλλεαςel
ΔημιουργόςDonlon Craigen
ΔημιουργόςMavrocordatos Constantinen
ΔημιουργόςFéménias Pierreen
ΔημιουργόςBorde Francken
ΔημιουργόςFrantzis Xenofonen
ΔημιουργόςΦραντζης Ξενοφωνel
ΔημιουργόςKokolakis Konstantinosen
ΔημιουργόςΚοκολακης Κωνσταντινοςel
ΔημιουργόςGuinle Thierryen
ΔημιουργόςVergos, Georgios Sen
ΔημιουργόςTziavos, Ilias Nen
ΔημιουργόςCullen Roberten
ΕκδότηςMDPIen
ΠερίληψηThis work presents the latest calibration results for the Copernicus Sentinel-3A and -3B and the Jason-3 radar altimeters as determined by the Permanent Facility for Altimetry Calibration (PFAC) in west Crete, Greece. Radar altimeters are used to provide operational measurements for sea surface height, significant wave height and wind speed over oceans. To maintain Fiducial Reference Measurement (FRM) status, the stability and quality of altimetry products need to be continuously monitored throughout the operational phase of each altimeter. External and independent calibration and validation facilities provide an objective assessment of the altimeter’s performance by comparing satellite observations with ground-truth and in-situ measurements and infrastructures. Three independent methods are employed in the PFAC: Range calibration using a transponder, sea-surface calibration relying upon sea-surface Cal/Val sites, and crossover analysis. Procedures to determine FRM uncertainties for Cal/Val results have been demonstrated for each calibration. Biases for Sentinel-3A Passes No. 14, 278 and 335, Sentinel-3B Passes No. 14, 71 and 335, as well as for Jason-3 Passes No. 18 and No. 109 are given. Diverse calibration results by various techniques, infrastructure and settings are presented. Finally, upgrades to the PFAC in support of the Copernicus Sentinel-6 ‘Michael Freilich’, due to launch in November 2020, are summarized.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2021-06-18-
Ημερομηνία Δημοσίευσης2020-
Θεματική ΚατηγορίαSatellite altimetryen
Θεματική ΚατηγορίαCopernicus Sentinel-3en
Θεματική ΚατηγορίαCalibrationen
Θεματική ΚατηγορίαFiducial reference measurementsen
Θεματική ΚατηγορίαTransponderen
Θεματική ΚατηγορίαSea surfaceen
Θεματική ΚατηγορίαUncertainty analysisen
Θεματική ΚατηγορίαCreteen
Βιβλιογραφική ΑναφοράS. Mertikas, A. Tripolitsiotis, C. Donlon, C. Mavrocordatos, P. Féménias, F. Borde, X. Frantzis, C. Kokolakis, T. Guinle, G. Vergos, I. Tziavos, and R. Cullen, “The ESA permanent facility for altimetry calibration: monitoring performance of radar altimeters for Sentinel-3A, Sentinel-3B and Jason-3 using transponder and sea-surface calibrations with FRM standards,” Remote Sens., vol. 12, no. 16, Aug. 2020. doi: 10.3390/rs12162642 en

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