摘要
利用1064nm激光雷达研究了苏州地区的大气消光特性,文中采用K lett方法反演了大气气溶胶的消光系数,得到了随大气垂直高度逐步变化的消光系数分布。通过对苏州地区2004年夏季的观测表明:在相同高度上,云的消光系数值比晴天无云时的气溶胶消光系数值可大约3个数量级;苏州城区的大气边界层高度在0.75km至2.49km之间浮动,其均值为1.88km。平均边界层高度最大的月份出现在8月,均值达到2.08km。
A lidar used for detection of extinction properties of aerosol in the troposphere at 1064nm are described.The extinction profile of aerosol varied with vertical altitude also are analyzed in terms of Klett inversion algorithm.Observed results over Suzhou city in summer in 2004 show that the extinction coefficient values of cloud are about three orders of magnitude larger than that in clear day in the same height.The height of aerosol boundary layer changes from 0.75km to 2.49km with a mean value of 1.88km,and reachs the bigger mena value of 2.08km in August.
出处
《激光与红外》
CAS
CSCD
北大核心
2005年第5期323-326,共4页
Laser & Infrared
