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中文摘要: 1999年8月23日,“Sam”台风在香港及其邻近地区造成暴雨。将热带降水测量卫星(TRMM)上降水雷达(PR)测到的降水率及雷达反射因子与香港雷达测量的相应值进行了对比分析,总的来说,它们之间有很好的一致性。在对比分析过程中,采取了两种方法:平均法和最佳匹配法。用最佳匹配法所得到的相关系数明显大于平均法。另外,当所测雨区与香港雷达距离小于100km时相关系数较大。PR测量的雷达反射因子大于香港雷达的测量值,两者的差值随距离的增加而增大。在PR测量的雷达反射因子小于20dB时,香港雷达测量值较大,反之PR
Abstract:The heavy rainfall occurred at Hong Kong and vicinity on Aug. 23,1999 was caused by typhoon ″Sam″. The rain rate and reflectivity distribution at 1km observed by TRMM/PR and HK radar are compared. Generally,they are consistent. Two methods, i.e. average and best match, are used in comparison. The correlation coefficients obtained from best match method are higher than average method. When the distance from HK radar is less than 100km the coefficient is higher. The difference of reflectivity from PR and HK radar has increased with the distance increasing from radar site. When the reflectivity from PR is less than 20dB the value observed by HK radar is larger. Otherwise, the reflectivity from PR is larger. The difference of reflectivity between the two radars increases when the reflectivity from PR becomes larger.
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引用文本：
何会中,程明虎,周康军,李曾中,2002.TRMM/PR与香港雷达资料对比分析[J].气象,28(10):32-36.
,2002.Comparison of Data and Product Obtained by TRMM/PR and Hong Kong Radar[J].Meteor Mon,28(10):32-36.
何会中,程明虎,周康军,李曾中,2002.TRMM/PR与香港雷达资料对比分析[J].气象,28(10):32-36.
,2002.Comparison of Data and Product Obtained by TRMM/PR and Hong Kong Radar[J].Meteor Mon,28(10):32-36.