[1] [1] PAN Yan, LI Xin, ZHAI Wenchao, et al. Optomechanical design of a spectrallycontinuous radiometer for surface reflectance automation observation［J］. Acta Photonica Sinica, 2018, 47(6): 0623002.

[2] [2] LI Xin, ZHENG Xiaobing, YIN Yapeng. Progress in automated site vicarious calibration technologies［J］. Journal of Atmospheric and Environmental Optics, 2014, 9(1): 1721.

[3] [3] QIU Ganggang. Development and calibration applications of automatic observation system on satellite radiometric calibration site［D］. Hefei: University of Science and Technology of China, 2017: 2324

[4] [4] WU Yunfei, ZHU Jun, CHE Huizheng, et al. Columnintegrated aerosol optical properties and direct radiative forcing based on sun photometer measurements at a semiarid rural site in Northeast China［J］. Atmospheric Research, 2015, 157: 5665.

[5] [5] KAZADZIS S, KOUREMETI N, DIMOZ H, et al. Results from the 4th WMO filter radiometer comparison for aerosol optical depth measurements［J］.Atmospheric Chemistry Physics, 2018, 18(5): 31853201.

[6] [6] HOLBEN B N, ECK T F, SLUTSKER I, et al. AERONETa federated instrument network and data archive for aerosol characterization［J］. Remote Sensing of Environment, 1998, 66(1): 116.

[7] [7] LI Zhengqiang, LI Donghui, LI Kaitao, et al．Sunsky radiometer observation network with the extension of multiwavelength polarization measurements［J］．Journal of Remote Sensing, 2015,19(3): 495519

[8] [8] HU Fangchao, WANG Zhenhui, ZHANG Bing, et al.Study on the field calibration of sunphotometer CE318 for the direct radiation channels［J］. Acta Optica Sinica, 2009, 29(s2): 322  326

[9] [9] XIN Jinyuan, WANG Yuesi, LI Zhanqing, et al. Introduction and calibration of the Chinese sun hazemeter network［J］. Chinese Journal of Enviromental Science, 2006, 27(9): 16971702.

[10] [10] ZHANG Junhua, WANG Meihua, MAO Jietai. Error analysis and correction for multiwavelength sunphotometer aerosol remote sensing［J］.Chinese Journal of Atmosphere Sciences, 2000, 24(6): 855859.

[11] [11] LEE K H, LI Zhanqing, CRIBB M C, et al. Aerosol optical depth measurements in eastern China and a new calibration method［J］. Journal of Geophysical Research Atmospheres, 2010, 115: D00K11.

[12] [12] CHE Huizheng, ZHANG Xiaoye, CHEN Hongbin, et al. Instrument calibration and aerosol optical depth validation of the China Aerosol Remote Sensing Network［J］. Journal of Geophysical Research, 2009, 114(D3): D03206.

[13] [13] CERQUEIRA J G, FERNANDEZ J H, HOELZEMANN J J, et al. Langley method applied in study of aerosol optical depth in the Brazilian semiarid region using 500, 670 and 870nm bands for sun photometer calibration［J］.Advances in Space Research, 2014, 54(8): 15301543.

[14] [14] CAMPANELLI M, NAKAJIMA T, OLIVIERI B. Determination of the solar calibration constant for a sunsky radiometer: proposal of an insitu procedure［J］.Applied Optics, 2004, 43(3): 651.

[15] [15] SHAW G E. Error analysis of multiwavelength sun photometry［J］. Pure & Applied Geophysics, 1976, 114(1): 114.

[16] [16] BOXM A. Finite bandwidth and scattered light effects on the radiometric determination of atmospheric turbidity and the solar constant［J］. Applied Optics, 1981, 20(13): 22152219.

[17] [17] CARLOS T, RAMIRO G, DAVID F, et al. Assessment of sun photometer langley calibration at the highelevation sites Mauna Loa and Izaa［J］.Atmospheric Chemistry and Physics, 2018, 18(19): 1455514567.

[18] [18] WEI Wei. Research on long time series radiometric calibration of satellite sensor based on global calibration site network［D］. Hefei: University of Science and Technology of China, 2017: 119120.