气象学报2011，Vol.69Issue(1)：26-40,15.
中国南方暴雨野外试验中尺度气象分析场的建立及其质量评估
The establishment and quality evaluation of the meso-scale analysis field based on the southern China torrential rainfall experiment.
摘要
Abstract
The LAPS meso-scale analysis system as is brought in by the Wuhan Heavy Rainfall Institute from the United States was used to integrate and assimilate the intensive observed data from the Southern China Torrential Rainfall Experiment (SCHeREX) in May-July, 2008/2009, and a meso-scale meteorological analysis field with the horizontal resolution 5 km and the time resolution 3 h covering four observational regions: South China, central China, the Jianghuai region and the delta of the Yangtze River, has been formed. The quality of the SCHeREX meso-sca1e analysis field has been evaluated. First, aiming at the key torrential rainfall events, the SCHeREX meso-scale analysis field was qualitatively compared with the radar reflectivity and the TBB image to study its capability of reproduction of meso-scale systems. The results show that the meso-scale system-induced torrential rainfall events can be analyzed by using the SCHeREX meso-scale analysis data. It can reproduce the development and evolution process of a meso-β system caused torrential rainfall events. The mean bias, the mean root square error and its distribution characteristics with heights were calculated and analyzed. The analysis results show that the analysis errors of geospatial height, temperature, relative humidity and wind from the SCHeREX meso-sca1e analysis data were acceptable, which are all within the observational errors, especially averaged analysis error of geopotential height was 45 gpm and the analysis error of temperature was 1.0-1.1℃, the relative humidity not exceeded 20％, the mean analysis error of wind speed was 1.5 - 2.0 m/s and the error of wind direction was 20° - 25° over 700 - 925 hPa. The above results clearly indicated that the SCHeREX meso-scale analysis field has very strong applicability for diagnostic analysis of meso-sca1e convective systems.关键词
LAPS/诊断分析/融合和同化/适用性/质量评估Key words
LAPS/ Diagnostic analysis/ Integrate and assimilate/ Applicability/ Quality evaluation分类
天文与地球科学引用本文复制引用
崔春光,倪允琪,李红莉,彭菊香,张艳霞,邱学兴,许晓林..中国南方暴雨野外试验中尺度气象分析场的建立及其质量评估[J].气象学报,2011,69(1):26-40,15.基金项目
国家973计划项目"我国南方致洪暴雨监测与预测的理论和方法研究"(2004CB418307) （2004CB418307）
科技部公益行业专项(GY-HY200706012,GYHY200906010,GYHY201006003) （GY-HY200706012,GYHY200906010,GYHY201006003）
国家自然科学基金(40930951) （40930951）
武汉暴雨所科研业务专项(1011). （1011）
