Study on the characteristics of atmospheric boundary layer by Mie scattering lidar over Chengdu
Study on the characteristics of atmospheric boundary layer by Mie scattering lidar over Chengdu
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发表时间：
2008
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通讯作者：
Zhao Xing-bing
中科院分区：
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作者：
Zhao Xing-bing
基于Mie散射激光雷达，探讨了成都地区大气边界层结构的变化，首先利用激光雷达回波和Klett反演方法反演了气溶胶消光系数和后向散射系数，然后通过拟合反演后向散射系数曲线，得到了大气混合层高度和大气边界层卷吸带宽度的特征参数，最后，对成都地区大气边界层结构的变化进行了分析。根据探测数据反演了成都地区的激光雷达回波，结果表明，成都地区混合层高度较低，卷吸带宽度较窄，大气边界层特征随时间变化较小，这与成都的特殊地理位置有关。
Basing on Mie scattering laser lidar,the change of the structure of atmospheric boundary layer in Chengdu was discussed.First,aerosol extinction coefficient and backscatter coefficient were inverted by using Lidar returns and Klett inversion method.Then,the characteristic parameters of atmospheric mixed layer height and entrainment zone width of the atmospheric boundary layer were obtained by fitting inverted backscatter coefficient curve.Last,the lidar returns of Chengdu were inverted basing on the detected data.The result is that mixed layer height is lower,entrainment zone width is thinner in Chengdu than in other areas,and the characteristics of the atmospheric boundary layer changed slightly with time in Chengdu.This is relevant to the special position of Chengdu.