VAD技术三种仰角策略反演风场的比较和应用  

Study and Comparison of Three VAD Techniques of the Wind Retrieval of Single-Doppler Weather Radar Using Different Elevation Strategies

作　　者：李杰[1] 顾松山[1] 胡中兵 林科学[1] 

机构地区：[1]南京信息工程大学电子工程系 [2]中国船舶工业第724研究所,江苏南京210003

出　　处：《南京气象学院学报》2006年第2期220-227,共8页Journal of Nanjing Institute of Meteorology

基　　金：国家科技攻关计划(2001BA610A)

摘　　要：对不同天气情况的资料分别采用单仰角VAD方法和多仰角VAD方法进行风场反演,比较了这两种算法的反演结果,提出了融合两种方法优点的自适应仰角取样方法,并进行反演比较,结果表明:单仰角和多仰角策略各有所长,采用自适应仰角取样策略结合两种方法优点,在某些场合下可以获得更有参考价值的VAD反演结果。The wind retrieval of the single-Doppler radar data under different weather conditions is performed using the single-elevation and multi-elevation VAD techniques, and the results are compared. On the basis of the comparison, this paper puts forth the selfadapting elevation VAD method, which combines merits of the above techniques. It is shown from retrieval results that the former two methods have their own merits and demerits ,while the selfadapting elevation VAD method is able to get more valuable information on some occassions.

关 键 词：VAD技术 风场反演 多普勒天气雷达 

分 类 号：P412.25[天文地球—大气科学及气象学]