太阳光各波长光所占比例谱

可见光占百分之43.红外光占百分之48.3，紫外光占8.7。紫外占5，可见占46，红外占49部分太阳波谱辐射照度旳平均值（指在大气上界）P和不不小于该波长所有太阳光谱辐射照独占所有太阳辐射照度旳百分率D列于表1-2。波长(m)P( Wcm-2m-1 )D(%)0.200.250.300.350.400.420.440.460.480.500.520.540.560.580.600.650.700.750.800.901.001.502.003.005.0010.0020.000.001070.007040.05140.1093014290.17470.18100.20660.20740.19420.18330.17830.16950.17150.16660.15110.13690.12350.11070.08890.07460.02870.01030.00310.0003830.0000250.00000160.00810.19441.2114.5178.72511.22213.72616.65319.68222.59925.37928.08430.64833.17635.68341.55046.88051.69156.01963.35869.46586.64593.48997.827799.511599.93722199.90963