太阳辐照绝对辐射计与国际比对

Solar Irradiance Absolute Radiometer and International Comparison

为了测量太阳辐照度和地球辐射 ,研制了太阳辐照绝对辐射计 (SIAR 1) ,对电校准腔型绝对辐射计进行了重要改进 ,提高了绝对精度。参加了世界气象组织在瑞士设立的世界辐射中心组织的第九届国际日射计比对 ,SIAR 1高于世界辐射基准 0 .0 8%。太阳辐照度监测器 (STIM )同SIAR 1进行了比对 ,结果太阳辐照度监测器三台绝对辐射计之间平均值偏差为 0 .11%。SIAR 1辐射计与太阳辐照度监测器 2号辐射计在 0 .0 9%以内符合。结论 :太阳辐照度监测器绝对精度为 0 .16 %。

In order to measure the solar irradiance and the earth radiation, a Solar Irradiance Absolute Radiometer (SIAR 1) is constructed. Two important improvements are made on electro calibrated cavity absolute radiometer and the absolute accuracy of SIAR 1 is improved. SIAR 1 has completed the international comparison with WRR in WRC, Switzerland during Sept. 25 to Oct. 13 in 2000, the comparison results showed that SIAR 1 is 0.08% higher than WRR. Whereafter, comparison of STIM with SIAR 1 is made. The average standard deviation among three absolute radiometers of STIM is 0.11%, The second absolute radiometer is accordance with SIAR 1 in the range of 0.09%. So it is concluded that the absolute accuracy of STIM is 0.16%.