[1] Guo Shichang, Yi Fang, Chen Hui et al.. Relation of ozone layer change and solar activity to the ECM/HP）［J］ . China Environmental Science, 2001, 21(1): 24~28

[2] J. E. Frederick. An assessment of the Robertson-Berger ultraviolet meter and measurements: introductory comments［J］. Photochem. Photobiol., 1992, 56: 113~114

[3] J. E. Frederick, E. C. Weatherhead. Temporal changes in surface ultraviolet radiation: a study of the Robertson-Berger meter and Dobson data records［J］. Photochem. Photobiol., 1992, 56: 123~131

[4] Feng Zhiqing, Li Futian. Design of small sized fiber grating spectrograph measuring ultraviolet spectrum［J］. Journal of Test and Measurement Technology, 2004, 18(4): 292~295

[5] Diao Lijun, Gu Songshan, Wang Pucai et al.. Meansurements and analyses on Beijing ground surface ultraviolet radiation (apectrum)［J］. Sciential Meteorologica Sinica, 2003, 23(1): 22~30

[6] Zhang Junqin, Yang Yintang, Lu Yan et al.. Simulation and analysis of 4H-SiC metal-semiconductor-metal ultraviolet photodetector［J］. Chinese J. Lasers, 2008, 35(4): 509~514

[7] He Yinghong, Cheng Juan, Yang Jingguo et al.. Simultaneous and real-time collection by multi-fiber coupling and optical multi-channel analyzer［J］. Spectroscopy and Spectral Analysis, 2004, 24(5): 624~636

[8] Yang Junwei, Hu Zhongxiang, Shi Xiaojun et al.. Error analysis of on-line temperature-field measurement by infrared CCD［J］. Acta Optica Sinica, 2009, 29(5): 1281~1284

[9] L. Alados-Arboledas, I. Alados, I. Foyo-Moreno et al.. The influence of clouds on surface UV erythemal irradiance［J］. Atmos. Res., 2003, 66(4): 273~290

[10] A. Kylling, A. Albold, G. Seckmeyer, Transmittance of a cloud is wavelength-dependent in the UV-range: Physical interpretation［J］. Geophysical Research Letters, 1997, 24(4): 397~400

[11] Brian L. Diffey. Sources and measurement of ultraviolet radiation［J］. Methods, 2002, 28(1): 4~13