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卫星传感器波段平均太阳辐照度计算及可靠性分析

DOI: 10.6046/gtzyyg.2012.03.18, PP. 97-102

Keywords: 大气层外太阳光谱辐照度(ESSI),波段平均太阳辐照度(BMSI),Thuillier,SBDART,WRC,oldkur.dat

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Abstract:

地球大气层外太阳光谱辐照度(extraterrestrialsolarspectralirradiance,ESSI)数据是计算卫星传感器波段平均太阳辐照度(bandmeansolarirradiance,BMSI)的重要参数。为了探求利用何种来源的ESSI数据计算传感器BMSI更为准确,分别采用SBDART软件模拟的太阳光谱曲线数据、MODTRAN4.0oldkur.dat文件数据、Thuillier太阳光谱曲线数据和WRC太阳光谱曲线数据计算了HJ-1ACCD1(B1—B4),CBERS-02CCD(B1—B5),Landsat5TM(B1—B4)和ASTER(B1—B8)4种传感器的BMSI,并与传感器运营商公布的数据进行了比较。结果表明:利用SBDART和WRC太阳光谱曲线数据计算的结果误差较小;利用MODTRAN4.0oldkur.dat数据计算的结果误差次之;利用Thuillier太阳光谱曲线的计算结果误差较大。

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