1、辐射传输模型辐射传输模型atmLdLatmbcos)(),;,(,)(),;,(,ssssbE)()(0sTB= +atm+),(sensorB辐射传输方程辐射传输方程 1 2 3MODTRAN （Moderate resolution atmospheric Transmittace and Radiance code） written by American Spectral Science and Technology Corp. and Air Force Physical Lab. 光谱范围光谱范围 0.2m-. 光谱分辨率光谱分辨率 1cm-1 .MODTRAN的基本组成的基本组成
2、MODTRAN输入参数输入参数输出结果输出结果Tape5Card1.Card5Tape6 Tape7 Tape8 Pltout channlesMODTRAN input parameters:Input parameters can be classed to 5 kinds:1. 控制参数控制参数： radiance transfer routine multi_scatter. 2.传感器参数传感器参数: channel center wavelength bandwidth. sensors band response function, 3.大气参数大气参数: Atmospheric
3、 model aerosols parameters4.几何参数几何参数 observing zenith observing azimuth suns zenith& suns azimuth5.地表参数地表参数 surface reflectance BRDFTS 7 2 2 0 0 0 0 0 0 0 0 0 0 283.150 0.02 /card1tt 8f 0 365.00000 1.00000 1.00000 f t t f 0.000 /card1aDATA/BMP99_01.BIN /card1a1C:Mod4v1r1PCDATAomistir_res.flt /card1a
4、3 1 0 0 0 0 0 20.00000 0.00000 0.00000 0.00000 0.00000 /card2 12 0 0SHUNRIOMIS04121030/card2c 0.033 1.02e+003 1.62e+001 1.50e+001 0.00e+000 0.00e+000ABH222222222222 0.104 1.00e+003 1.40e+001 1.60e+001 0.00e+000 0.00e+000ABH222222222222 0.753 9.25e+002 7.70e+000 1.90e+001 0.00e+000 0.00e+000ABH222222
5、222222 1.440 8.50e+002 1.40e+000 2.30e+001 0.00e+000 0.00e+000ABH222222222222 2.970 7.00e+002-9.20e+000 3.40e+001 0.00e+000 0.00e+000ABH2222222222222.100 0.033 180.000 0.000 0.000 0.000 0 0 / card3 1 2 101 0 /card3a1 40.120 243.423 0.000 0.000 3.080 0.000 0.000 0.000 /card3a2 700 1400 1 1rw w4aa /ca
6、rd31MODTRANS OUTPUTTape6Tape7Tape8PltoutchannlesSecond Simulation of the Satellite Signal in the Solar Spectrum: 6S基于辐射传输模型的纠正基于辐射传输模型的纠正Input file example (Landsat imagery):7 (landsat TM)10 27 1.8 117 39 (month,day,hour,long,lat)3 (mid lat winter)1 (continental)23 (visibility, km)-0.1 (TARGET ALTITUDE IN KM)-1000 (SATELLITE CASE)29 (Landsat 5 band 5)0 (HOMOGENEOUS CASE)0 (NO BRDF effect)0 (uniform target)0.5 (reflectance = 0.5)-2.0 (no atm. correction)
