spectral radiance
1.The task and requirement of HJ-1A satellite CCD camera are introduced, then the paper analyzes chief elements which effect on the incident spectral radiance of HJ-1A satellite CCD camera And get different incident spectral radiance of CCD camera in different conditions through "6S" software According as the observation ability of every waveband and the spectral characteristic of ground, the maximum value of incident spectral radiance of every waveband is finally given
3.The AIRS cloud-cleared radiance spectrum is spectrally reduced to mimic all MODISinfrared spectral bands within the AIRS spectral range. These aggregated measurements, MODIS-like in spectral coverage but at the spatial resolution of AIRS, are expressed as brightness temperatures and are compared with MODIS clear sky brightness temperature observations within all successfully cloud-cleared AIRS footprints.
4.In order to simulate the radiance of infrared and water vapor channels of FY2B with RTTOV,a multi-variables linear regression was used to produce transmittances by using spectral response functions of these channels and a precise transmittances database of 600-3000 cm~(-1) generated from GENLN2 at 6 viewing angles.
