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Proceedings Paper

Vicarious absolute radiometric calibration of GF-2 PMS2 sensor using permanent artificial targets in China
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Paper Abstract

GF-2, launched on August 19 2014, is one of the high-resolution land resource observing satellite of the China GF series satellites plan. The radiometric performance evaluation of the onboard optical pan and multispectral (PMS2) sensor of GF-2 satellite is very important for the further application of the data. And, the vicarious absolute radiometric calibration approach is one of the most useful way to monitor the radiometric performance of the onboard optical sensors. In this study, the traditional reflectance-based method is used to vicarious radiometrically calibrate the onboard PMS2 sensor of GF-2 satellite using three black, gray and white reflected permanent artificial targets located in the AOE Baotou site in China. Vicarious field calibration campaign were carried out in the AOE-Baotou calibration site on 22 April 2016. And, the absolute radiometric calibration coefficients were determined with in situ measured atmospheric parameters and surface reflectance of the permanent artificial calibration targets. The predicted TOA radiance of a selected desert area with our determined calibrated coefficients were compared with the official distributed calibration coefficients. Comparison results show a good consistent and the mean relative difference of the multispectral channels is less than 5%. Uncertainty analysis was also carried out and a total uncertainty with 3.87% is determined of the TOA radiance.

Paper Details

Date Published: 19 October 2016
PDF: 6 pages
Proc. SPIE 10000, Sensors, Systems, and Next-Generation Satellites XX, 1000019 (19 October 2016); doi: 10.1117/12.2240472
Show Author Affiliations
Yaokai Liu, Academy of Opto-Electronics, CAS (China)
Univ. of Chinese Academy of Sciences (China)
Chuanrong Li, Academy of Opto-Electronics, CAS (China)
Lingling Ma, Academy of Opto-Electronics, CAS (China)
Ning Wang, Academy of Opto-Electronics, CAS (China)
Yonggang Qian, Academy of Opto-Electronics, CAS (China)
Lingli Tang, Academy of Opto-Electronics, CAS (China)

Published in SPIE Proceedings Vol. 10000:
Sensors, Systems, and Next-Generation Satellites XX
Roland Meynart; Steven P. Neeck; Toshiyoshi Kimura, Editor(s)

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