单多普勒雷达反演风场的质量控制  

Quality Control of Single Doppler Radar Derived Wind Field

作　　者：彭霞云[1] 闵锦忠[1] 周振波[1] 高斌斌[1] 

机构地区：[1]南京信息工程大学江苏省气象灾害重点实验室,江苏南京210044

出　　处：《南京气象学院学报》2007年第1期79-85,共7页Journal of Nanjing Institute of Meteorology

基　　金：国家自然科学基金资助项目(40575052);江苏省自然科学基金资助项目(BK2004140);江苏省气象灾害重点实验室资助项目(KLME050218);教育部留学归国人员资助项目

摘　　要：利用扩展VAP方法,通过极值订正,时间和空间连续性订正等方法,对反演后的风场进行质量控制,并与双多普勒雷达风场反演结果进行了对比。结果表明,经过订正的反演风场中大部分有明显误差的点得到了修正,而且订正后的风场更合理,与双多普勒雷达风场反演结果更一致,提高了反演风场的质量。Currently, wind retrieval with Single-Doppler radar data is still a difficult issue, and the retrieved wind is in low quality and difficult to apply. This is due to the low quality of radar data itself and the deficiency of retrieval methods. Based on a newly developed retrieval method Extended-VAP, several quality control methods including extremal check, spatial continuity check and temporal consistency check were developed and applied to the retrieval of wind field. Results show that most of the points which contain obvious errors could be corrected, the modified field seems more reasonable and consistent with Dual-Doppler radar retrieved field, and therefore the quality is much improved. However how to determine a proper correction threshold and extra model-related procedure needs further investigation.

关 键 词：雷达径向风 风场反演 质量控制 

分 类 号：P412[天文地球—大气科学及气象学]