A Multiplatform Approach Using MODIS Sensors to Cross-Calibrate the HJ-1A/CCD1 Sensors Over Aquatic Environments

作者：Quan Wenting

来源：Photonirvachak-Journal of the Indian Society of Remote Sensing, 2015, 43(4): 687-695.

DOI：10.1007/s12524-015-0452-6

• MODIS sensor
• HJ-1A/CCD1 sensor
• Vicarious cross-calibration
• Bidirectional reflectance distribution effects
• Spectral sand difference effects

Abstract(#br)A cross-calibration model is developed for calibrating the reflectance of HJ-1A/CCD1 sensor to MODIS/Terra sensor in the post-launch era. The vicarious cross-calibration models are initialized using the image pairs of HJ-1A/CCD1 and MODIS/Terra sensors collected from two testing sites, Nam Co Lake and Qinghai Lake, China. Our results show the cross-calibration model produced good performance in calibrating reflectance of HJ-1A/CCD1 sensor to MODIS/Terra sensor, whose mean relative error do not exceed 8.5 % for three visible channels of HJ-1A/CCD1 sensor. Moreover, the theoretical difference between the MODIS/Terra and HJ-1A/CCD1 reflectance are simulated using the 6S code. The results indicate that it would cause a pronounced difference. Therefore, it necessary to reinitialize the coefficients of the water color remote sensing models, when those models with HJ-1A/CCD1 band were applied to the vicarious cross-calibration data.

• 出版日期2015-12