[1] World Meteorological Organization. WMO final report[R]. Geneva: WMO, 490(1978).

[2] World Meteorological Organization. Technical regulations[S]. Geneva: WMO(1979).

[3] Fröhlich C. History of solar radiometry and the world radiometric reference[J]. Metrologia, 28, 111-115(1991).

[4] International Electrotechnical Commission. Photovoltaic devices-part 4: reference solar devices-procedures for establishing calibration traceability: IEC 60904-4[S]. Geneva: IEC Central Office(2019).

[5] Reda I, Myers D, Stoffel T. Uncertainty estimate for the outdoor calibration of solar pyranometers: a metrologist perspective[J]. NCSLI Measure, 3, 58-66(2008).

[6] Romero J, Fox N P, Fröhlich C. First comparison of the solar and an SI radiometric scale[J]. Metrologia, 28, 125-128(1991).

[7] Romero J, Fox N P. Fr hlich C. Improved comparison of the world radiometric reference and the SI radiometric scale[J]. Metrologia, 32, 523-524(1995).

[8] Finsterle W, Blattner P, Moebus S et al. Third comparison of the world radiometric reference and the SI radiometric scale[J]. Metrologia, 45, 377-381(2008).

[9] Fehlmann A, Kopp G, Schmutz W et al. Fourth world radiometric reference to SI radiometric scale comparison and implications for on-orbit measurements of the total solar irradiance[J]. Metrologia, 49, S34-S38(2012).

[10] Fang W, Yu B X, Yao H S et al. Solar irradiance absolute radiometer and international comparison[J]. Acta Optica Sinica, 23, 112-116(2003).

[11] Yu B X, Yao H S, Fang W. Rapid measurement method of absolute radiometer by using forecast radiation in electrically heating compensation[J]. Acta Optica Sinica, 25, 786-790(2005).

[12] Yang Z L, Fang W, Song B Q et al. Variation of solar irradiance absolute radiometer cavity temperature response in vacuum and its effect[J]. Acta Optica Sinica, 33, 0912008(2013).