局地分析预报系统LAPS对多种探测资料融合研究及评估

 以武汉暴雨研究所引进的美国局地分析预报系统（LAPS）为基础,利用"973"项目实验收集的华南、长江流域2008年至2010年间的地面、探空的常规、加密观测和多部新一代多普勒雷达数据,通过设计、运行多种LAPS数据融合方案,开展LAPS的本地化试验.分析评估表明,LAPS系统以NCEP再分析数据为背景场的多种观测数据融合,可以改善NCEP再分析场,获得的分析场更接近实况观测.多种观测数据融合的分析场优于单种观测数据融合的分析场.基于多雷达反射率因子拼图,比较LAPS融合多种观测数据得到的分析风场和NCEP再分析风场,结果表明,LAPS分析风场与多雷达反射因子回波拼图的配置更为合理.

Research and evaluation of the Local Analysis and Prediction System LAPS on a variety of detection data integration

Based on the Local Analysis and Prediction System LAPS introduced by Wuhan Institute of Heavy Rain.Using the ground,sounding conventional,Intensive observation and more than a new generation Doppler radar data in South China and the Yangtze River from 2008 to 2010 collected by the “973” experiments.A variety of LAPS localization testing was carried out by designing and operating many LAPS data integration solutions.It was shown that,using NCEP reanalysis data as background field,the observational data integration of LAPS would improve the NCEP reanalysis field and abtain analysis field which closer to live observations.The analysis field merged by multiple observation data was superior to that merged by single observation data.Based on Multi-radar reflectivity factor puzzles,the wind field was compared between the LAPS merged by a variety of observational data and NCEP reanalysis data .The results showed that,the configuration of LAPS analysis wind field and Multi-radar-reflecting echo puzzle was more reasonable.