Time Series of Cross-calibration of HJ-1B Thermal Infrared Channel
The absolute calibration of HJ-1B thermal infrared channel is achieved by 7 times cross-calibration of Qinghai Lake in 2010, between the HJ-1B thermal infrared channel and MODIS 31, 32 channels. At the same time, the intercept of calibration coefficients is calculated. First, the spatial match are completed between the HJ-1B IRS image and MODIS 31, 32 channels image. Then, the spectral response of HJ-1B IRS thermal channel and MODIS 31, 32 channels are used for the spectral match. Based on the SST algorithms of MODIS, the MODTRAN4.0 is used to simulate the radiative transfer results under the condition of variety surface temperature of the Qinghai Lake, the atmospheric profile, observational geometry combined with the spectral response functions of the remote sensors. The quantitative linear relationship can be established with the simulation results. The gain and offset of cross-calibration are 52.7788 1/(W/(m2.sr.μm)),-55.4137. The result needs further validation of longer sequence.
cross- calibration time series thermal infrared HJ-1B MODIS
Li Liu Xing-Fa Gu Tao Yu Xiao-Ying Li Hai-Liang Gao Jia-Guo Li Xing-Feng Chen
State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of RemoteSensing State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing
国际会议
桂林
英文
1-6
2011-11-01（万方平台首次上网日期，不代表论文的发表时间）