基于单多普勒激光雷达低空三维风场反演方法  

Aerodrome Low Altitude Three Dimension Wind Retrieval Algorithm Based on Single Doppler Lidar

作　　者：庄子波[1] 蒋立辉[2] 田俊峰[2] 李勇[2] 

机构地区：[1]中国民航大学国际飞行学院,天津300300 [2]中国民航大学电子信息工程学院,天津300300

出　　处：《中国民航大学学报》2008年第4期25-29,共5页Journal of Civil Aviation University of China

基　　金：国家自然科学基金项目(60572168)

摘　　要：基于单多普勒激光雷达测风原理,采用涡度-散度方法对机场上空的低空小尺度天气系统进行三维风场的反对演。对于机场上空的天气结构进行了建模和仿真,分别构建了均匀风场和均匀风场叠加涡旋风场试验,实现了涡度-散度方法的风场反演,通过算法反演数据与原始数据对比,分析了反演的误差,结果表明涡度-散度法能较好地反映小尺度的风场结构。Vorticity-divergence algorithm, as wind retrieval method,was selected. This method is based on low level micro scale atmosphere＇model above the aerodrome. Doppler lidar is one of the effective methods measuring low level wind field. Three component of wind field can be retrieved by processing the data from radial velocity of the Doppler lidar. In order to verify the validity of the algorithm, some simulating data of low level micro scale atmosphere model above the aerodrome was built. A uniform wind field and a uniform wind stacking vortex wind field experiments were established respectively. Through the contrasting of real data and retrieval data and the error analysis and it can be able to best reflect micro scale wind field structure.

关 键 词：多普勒激光雷达 涡度-散度 风场反演 

分 类 号：P413[天文地球—大气科学及气象学]