米散射激光雷达测量大气水平能见度MIE LIDAR FOR VISIBILITY MEASUREMENT
吴礼林,迟如利
摘要(Abstract):
激光雷达作为一种新型的大气观测工具,可以通过直接探测激光与大气相互作用的光辐射信号来定量地反演大气水平能见度,从而成为测量大气水平能见度的主要手段.正在研制的一台基于532nm波长的车载式米散射激光雷达,用于大气能见度的测量;简单介绍了正在研制的激光雷达的技术参数,给出了测量数据的处理方法;利用雷达的技术参数进行了模拟计算,显示了该激光雷达探测大气水平能见度的可靠性,计算误差显示在大气能见度为10km时该激光雷达的测量误差小于16%.
关键词(KeyWords): 激光雷达;气溶胶;消光系数;能见度
基金项目(Foundation):
作者(Author): 吴礼林,迟如利
参考文献(References):
- [1]Yan Song,Xin Yu,Zhou Jun.Lidar Obervations of the Lower At mosphere in Hefei,Chinese Journal of At mospheric Sciences,2005,29(3):387~395
- [2]Zhang gaixia,Zhang yinchao,et al..Lidar geometrical form factor and its effect on aerosol detection,Chinese Journal of Quantum Electronics,2005,22(2):299~304
- [3]Yasuhiro Sasano.Tropospheric aerosol extinction coefficient profiles derived from scanning lidar measurements overTsukuba,Japan,from1990to1993[J].Appl.Opt.,1996,35(24):4941~4952
- [4]Wang S.Y,Zhang X.L,Xu X.F.Analysis of variation features of visibility and its effect factors in Beijing[J],Meteorological Science and Technology,2003,31(2):100~114
- [5]A.Althausen,D.Mulleret al..“Scanning6-wavelength11-channel Aerosol Lidar”.J.At mos.Ocean.Technol,2000,(30):1469~1482
- [6]Zhang zhengyu,Sui xiaolin.Faint signal digital correlation detection of laser ranging:study and si mulation.Chinese Journal of Laser,2002,29(7),661~665