介绍一种激光雷达常数标定和气溶胶光学厚度(AOD)测量的新方法.利用太阳辐射计,获得大气气溶胶的光学厚度,激光雷达可以获得35～40 km高度的回波信号,在这一高度区间可忽略气溶胶的存在,大气模式可以提供大气分子散射系数,根据激光雷达方程计算出激光雷达常数.反之,标定激光雷达常数后,根据激光雷达方程,以激光雷达35～40 km的大气分子后向散射回波信号来确定气溶胶的光学厚度.激光雷达测量结果与太阳辐射计的测量结果一致性较好,说明该方法是可行的.这种新方法既可以用于白天的气溶胶光学厚度测量,也可以用于夜间测量.
参考文献
| [1] | Zhou Jun,Yue Guming,et al.,Two-wavelength Mie lidar for monitoring of tropospheric aerosol[J].Acta Optica Sinica (光学学报),2000,20(10):1412-1417 (in Chinese). |
| [2] | Hu Shunxing,Hu Huanling,Wu Yonghua,et al.,L625 differential absorption lidar system for tropospheric ozone measurements[J].Acta Optica Sinica (光学学报),2004,24(5):597-601 (in Chinese). |
| [3] | Frederrick G F.Analysis of atmospheric lidar observation:some comments[J].Appl.Opt.,1984,23:652-653. |
| [4] | Klett J D.Stable analytical inversion solution for processing lidar returns[J].Appl.Opt.,1981,20:211-220. |
| [5] | Zhang Jingbin,Hu Huanling.Lidar calibration:a new method[J].Appl.Opt.,1997,36(6):1235-1238. |
| [6] | Frederrick G F,Benjaman M H,John A R.Determination of aerosol height distribution by lidar[J].J Appl.Meteor.,1972,11:482-489. |
| [7] | Yang Zhenzhu,Zhou Jun,et al.,Cirrus cloud observed by polarization Mie lidar system at Hefei region[J].Jiangsu Meteorology,2005 supplement,256-259 (in Chinese). |
| [8] | Hu Shunxing,Hu Huanling,Wu Yonghua,et al.,Atmospheric ozone measured by differential absorption lidar over Hefei[C] // Proc.SPIE,Lidar Remote Sensing for Industry and Environment Monitoring Ⅲ[M].2003,4893:473-479. |
| [9] | Zhan Jie,Tan Kun,Shao Shisheng,et al.,Potable autocontrol solar photometer[J].Chinese Journal of Quantum Electronic (量子电子学报),2001,18(6):551-555 (in Chinese). |
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