[1] SMITH J, THOME K, CROWTHER B,et al. Field evaluation of a diffuse to global irradiance meter for vicarious calibration［C］. International Geoscience and Remote Sensing Symposium (IGARSS), IEEE, 1998, 2: 663-665.

[3] LOPEZ-SOLANO J, REDONDAS A, CARLUND T, et al. Aerosol optical depth in the European Brewer Network［J］. Atmospheric Chemistry and Physics, 2018, 18(6): 3885-3902.

[4] HUANG Bo, DAI Cai-hong, YU Jia-lin. Research and test of the cosine response property of UV radiometers［J］. Optical Technology, 2010, 36(2): 176-181.

[5] CORDERO R R, SECKMEYER G, LABBE F. Cosine error influence on ground-based spectral UV irradiance measurements［J］. Metrologia, 2008, 45(2008): 406-414.

[6] MILBURN D I, HOLLANDS K G T. The directional response of an integrating sphere detector system［J］. Optics Communications, 1995, 115(1995): 158-169.

[7] ZHANG Bao-zhou, XIE Yin-zhong. Research of integrating sphere for cosine response of radiometer［J］. Acta Metrologica Sinica, 2009, 30(3): 209-211.

[8] BAIS A F, KAZADZUS S, GARANE K, et al. Portable device for characterizing the angular response of UV spectroradiometers［J］. Applied Optics, 2005, 44(33): 7136-7143.

[9] PULLI T, KARAHA P, IKONEN E. A method for optimizing the cosine response of solar UV diffusers［J］. Journal of Geophysical Research: Atmospheres, 2013, 118(14): 7897-7904.

[10] ZHENG Ru, ZHANG Guo-yu, GAO Yue, et al. Cosine error correction of solar radiation observation instrument［J］. Acta Photonica Sinica, 2016, 45(1): 0112004.

[11] BERNI L A, VILELA W A, BELOTO A F, et al. System for measuring the angular response of radiometers［C］. SPIE, 2013, 8785:87852F.

[12] GRBNER J, BLUMTHALER M, AMBACH W. Experimental investigation of spectral global irradiance measurement errors due to a non ideal cosine response［J］. Geophysical Research Letters, 1996, 23(18): 2493-2496

[13] BAIS A F, KAZADZIS S, BALIS D, et al. Correcting global Solar ultraviolet spectra recorded by a Brewer spectroradiometer for its angular response error［J］. Applied Optics, 1998, 37(27): 6339-6344.

[14] DAI C, YU J, HUANG B, et al. Improved entrance optics design for ground-based solar spectral ultraviolet irradiance measurements and system absolute calibration［C］. SPIE, 2009, 7384: 73841P.

[15] di SARRA A, FUA D, CACCIANI M, et al. Determination of ultraviolet cosine-corrected irradiances and aerosol optical thickness by combined measurements with a Brewer spectrophotometer and a multifilter rotating shadowband radiometer［J］. Applied Optics, 2008, 47(33): 6339-6344.

[16] FEISTER U, GREWE R, GERICKE K. A method for correction of cosine errors in measurements of spectral UV irradiance［J］. Solar Energy, 1997, 60(6): 313-332.

[17] HLSEN G, GRBNER J. Characterization and calibration of ultraviolet broadband radiometers measuring erythemally weighted irradiance［J］. Applied Optics, 2007, 46(23): 5877-5886.

[18] FIOLETOV V E, KERR J B, WARDLE D I, et al. Comparison of Brewer ultraviolet irradiance measurements with total ozone mapping spectrometer satellite retrievals［J］. Optical Engineering, 2002, 41(12): 3051-3061.

[19] ANTON M, SERRANO A, CANCILLO M L, et al. Correction of angular response error in Brewer UV irradiance measurements［J］. Journal of Atmospheric and Oceanic Technology, 2008, 25: 2018-2027.

[20] LANDELIUS T, JOSEFSSON W. Methods for cosine correction of broadband UV data and their effect on the relation between UV irradiance and cloudiness［J］. Journal of Geophysical Research, 2000, 105(D4): 4795-4802.

[21] HATRI P, TAKAMURA T, YAMAZAKI A, et al. Retrieval of key aerosol optical parameters from spectral direct and diffuse irradiances observed by a radiometer with nonideal cosine response characteristic［J］. Journal of Atmospheric and Oceanic Technology, 2012, 29: 683-696.

[22] BLUMTHALER M, GRBNER J, HUBER M. Measuring spectral and spatial variations of UVB and UVA sky radiance［J］. Geophysical Research Letters, 1996, 23: 547-550.

[23] ZHANG Yan-na, LIU En-chao, LI Xin, et al. Calibration method of VNIR solar irradiance spectroradiometer ［J］. Journal of Applied Optics, 2014, 35(1): 11-16.

[24] WANG Xi-shi, MIN Xiang-jun, WU Rong, et al. Measurement method research on the atmospheric spectral optical depth［J］. Remote Sensing Technology and Application, 1997, 12(2): 8-16.

[25] BAIS A F. Absolute spectral measurements of direct solar ultraviolet with a Brewer spectrophotometer［J］. Applied Optics, 1997, 36(21): 5199-5204.

[26] SIGERNES F, IVANOY Y, CHERNOUSS S, et al. Hyperspectral all-sky imaging of auroras［J］. Optics Express, 2012, 20(25): 27650-27660.

[27] OLMO F J, CAZORLA A, ALADOS-ARBOLEDAS L, et al. Retrieval of the optical depth using an all-sky CCD camera［J］. Applied Optics, 2008, 47(34): H182-H189.

[28] SLUSSER J, GIBSON J, BIGELOW D, et al. Langley method of calibrating UV filter radiometers［J］. Journal of Geophysical Research, 2000, 105(D4): 4841-4849.

[29] DAYOU J, CHANG J H W, SENTIAN J. Ground-based aerosol optical depth measurement using sunphotometers［M］. Springer, 2014.

[30] GRANT R H, HEISLER G M, GAO W. Clear sky radiance distribution in ultraviolet wavelength bands［J］. Theoretical and Applied Climatology, 1997, 56: 123-135.

[31] YANG Lei, ZHANG Xue-wen,HAN Qi-jin. Retrieval and analysis of aerosol optical thickness over Dunhuang region［J］. Journal of Atmospheric and Environmental Optics, 2014, 9(1): 37-42.

[32] LI Jian-yu, WEI He-li, XU Qing-shan, et al. Atmospheric aerosol optical characteristics measured at several typical zones in China［J］. Optics and Precision Engineering, 2012, 20(6): 1167-1174.

[33] HU Xiu-qing, ZHANG Yu-xiang, ZHANG Guang-shun, et al. Measurements and study of aerosol optical characteristics in China radiometric calibration sites［J］. Quarterly Journal of Applied Meteorology, 2001, 12(3):257-266.