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Remote Sens. 2015, 7(8), 10763-10787;

Cross-Calibration of GF-1/WFV over a Desert Site Using Landsat-8/OLI Imagery and ZY-3/TLC Data

1,2,* , 4
State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China
Joint Center for Global Change Studies, Beijing 100875, China
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
Beijing Geoway Times Software Technology Co., Ltd., Beijing 100043, China
Author to whom correspondence should be addressed.
Academic Editors: Xin Li, Yuei-An Liou and Prasad S. Thenkabail
Received: 17 June 2015 / Revised: 11 August 2015 / Accepted: 14 August 2015 / Published: 20 August 2015
Full-Text   |   PDF [1432 KB, uploaded 20 August 2015]   |  


The wide field of view (WFV) is an optical imaging sensor on-board the Gao Fen 1 (GF-1). The WFV lacks an on-board calibrator, so on-orbit radiometric calibration is required. Zhong et al. proposed a method for cross-calibrating the charge-coupled device on-board the Chinese Huan Jing 1 (HJ-1/CCD) that can be applied to the GF-1/WFV. However, the accuracy is limited because of the wider radiometric dynamic range and the higher spatial resolution of the GF-1/WFV. Therefore, Landsat-8 Operational Land Imager (OLI) imagery with a radiometric resolution similar to that of the GF-1/WFV and DEM extracted from ZY-3 three-line array panchromatic camera (TLC) with a higher spatial resolution were used. A calibration site with uniform surface material and a natural topographic variation was selected, and a model of this site’s bidirectional reflectance distribution function (BRDF) was developed. The model has excellent agreement with the real situation, as shown by the comparison of the simulations to the actual OLI surface reflectance. Then, the model was used to calibrate the WFV. Compared with the TOA reflectance from synchronized Landsat-8/OLI images, all errors calculated with the calibration coefficients retrieved in this paper are less than 5%, much less than the errors calculated with the calibration coefficients given by the China Centre for Resource Satellite Data and Application (CRESDA). View Full-Text
Keywords: cross-calibration; GF-1/WFV; HJ-1/CCD; Landsat-8/OLI; ZY-3/TLC; BRDF; TOA reflectance cross-calibration; GF-1/WFV; HJ-1/CCD; Landsat-8/OLI; ZY-3/TLC; BRDF; TOA reflectance

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yang, A.; Zhong, B.; Lv, W.; Wu, S.; Liu, Q. Cross-Calibration of GF-1/WFV over a Desert Site Using Landsat-8/OLI Imagery and ZY-3/TLC Data. Remote Sens. 2015, 7, 10763-10787.

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