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Remote Sens. 2016, 8(7), 546;

In-Orbit Radiometric Calibration and Stability Monitoring of the PROBA-V Instrument

Flemish Institute for Technological Research (VITO)—Remote Sensing Unit, Boeretang 200, 2400 Mol, Belgium
ESA-ESTEC—Keplerlaan 1, PB 299, 2200 AG Noordwijk, The Netherlands
Author to whom correspondence should be addressed.
Academic Editors: Clement Atzberger, Magda Chelfaoui and Prasad S. Thenkabail
Received: 30 April 2016 / Revised: 14 June 2016 / Accepted: 20 June 2016 / Published: 29 June 2016
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Since its launch in May 2013, the in-orbit radiometric performance of PROBA-V has been continuously monitored. Due to the absence of on-board calibration devices, in-flight performance monitoring and calibration relies fully on vicarious calibration methods. In this paper, the multiple vicarious calibration techniques used to verify radiometric accuracy and to perform calibration parameter updates are discussed. Details are given of the radiometric calibration activities during both the commissioning and operational phase. The stability of the instrument in terms of overall radiometry and dark current is analyzed. Results of an independent comparison against MERIS and SPOT VEGETATION-2 are presented. Finally, an outlook is provided of the on-going activities aimed at improving both data consistency over time and within-scene uniformity. View Full-Text
Keywords: radiometric calibration; PROBA-V; global; vegetation radiometric calibration; PROBA-V; global; vegetation

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Sterckx, S.; Adriaensen, S.; Dierckx, W.; Bouvet, M. In-Orbit Radiometric Calibration and Stability Monitoring of the PROBA-V Instrument. Remote Sens. 2016, 8, 546.

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