成都地区中低云层的激光雷达探测  

Lidar Measurements of the Lower Cloud in Chengdu

作　　者：王宏波[1] 王治华[1] 何捷[1] 郑玉臣[2] 杨经国[1] 

机构地区：[1]四川大学物理系,成都610064 [2]香港城市大学物理及材料科学系

出　　处：《光子学报》2007年第2期350-354,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(60478044;60078020)资助

摘　　要：报道了应用Mie散射激光雷达探测云层的实验.利用改进的Klett反演算法对所测雷达回波信号反演获得大气消光系数分布,进一步求出云层高度、厚度及光学厚度.研究了云底高度和云层厚度在不同天气下的变化情况.获得了成都地区云层的一些重要信息,并对所得结果进行了分析讨论.It is reported the study of cloud in Chengdu with Mie lidar. Based on the lidar data,the extinction coefficient was inverted by using Klett inversion method（ameliorated）. Then, the information of cloud height,cloud thickness and optical depth are gotten. The variation of the cloud-base height and cloud thickness in different weather is researched. With the help of lidar, some important information about cloud inChengdu was obtained and a further analysis was made. For example, low altitude clouds tended to appear in the area and them were observed particularly in winter. This is relewmt to the special position of Chengdu.

关 键 词：MIE散射 大气激光雷达 消光系数 云 光学厚度 

分 类 号：P41[天文地球—大气科学及气象学]