SUN-PHOTOMETER CALIBRATION AND ITS APPLICATION

被引:6
作者
周军
曹昌胤
许军
胡欢陵
机构
[1] Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciences
[2] Hefei
[3] Anhui 230031
关键词
aerosol; solar radiometry; calibration; turbidity;
D O I
暂无
中图分类号
P414.52 [];
学科分类号
0706 ; 070601 ;
摘要
Sun-photometer has been widely used to investigate various optical properties of the atmosphere.In order to derivean accurate atmospheric optical depth,great care in the sun-photometer calibration is required.In this paper,the fea-ture of a new sun-photometer is described.Calibration results based on the Langley method at Mt.Huangshan are re-ported.Effect of the atmospheric instability on retrieving the calibration values is discussed and errors in calibration atMt.Huangshan due to temporal variation of aerosol concentration are estimated.It is shown that the calibratedsun-photometer can be used to derive the atmospheric optical depth to an accuracy of 5%.As one of its applications,examples of determination of turbidity parameters and columnar aerosol size distribution are presented.
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页码:229 / 237
页数:9
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