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投稿时间：2007-01-17 修订日期：2007-03-10
投稿时间：2007-01-17 修订日期：2007-03-10
中文摘要: 利用合肥新一代天气雷达2003年6—7月观测数据和地面观测的逐时雨量资料，得到
分段最优化ZI关系，在淠河灌区的水源地响洪甸流域和佛子岭流域进行降水测量。结果表明：强降水阶段流域面
雨量，优化ZI关系后得到的流域累积面雨量与雨量计比值从39%提高到73％，同时相
关系数从0.78提高到0.8。528小时时间序列上佛子岭流域在优化ZI关系之后，流域平均面雨
量与雨量计的回归线斜率从0.4提高到0.72，1mm?h-1以上流域平均面雨量累积值与雨量计累
积值的比值从48.4％提高到了85.9％。可见，优化ZI关系后雷达反演值更接近于雨量
观测值，同时雷达定量估测流域面雨量的精度得到很大提高。
中文关键词: 分段优化法L天气雷达 面雨量测量
Abstract:Based on the observation data of New Generation Weather Radar (CINRAD)
and hourly surface rain gauge data, a subsection optimized ZI relationshi
p was obtained, the rainfall measurements were conducted in Xiang hongdian and Fozil
ing subcatchments which located in the upper reaches of Pihe. The results show t
hat by this optimized relationship, the ratio between the basin accumulated
area rainfall and rain gauge value improved from 39% to 73% while the correlatio
n coefficient from 0.78 to 0.8. On the 528-hour time sequence of Foziling subcatch
ment with the optimized ZI relationship, the trend line slope of mean area
rainfall increased from 0.40 to 0.72 compared to rainfall from rain gauge,
while the ratio between the accumulated area
rainfall value above 1mm/h and the accumulated rain gauge value improved from 48.4% to 85.9%. Obviously, optimized
ZI radar rainfall value is closer to the observed rainfall value, and the precision
of area rainfall by radar is strictly improved.
文章编号： 中图分类号： 文献标志码：
基金项目:
| 作者 | 单位 |
| 姚燕飞 | 中国气象科学研究院，北京，100081 |
| 程明虎 | 中国气象科学研究院，北京，100081 |
| 杨洪平 | 中国气象局武汉暴雨研究所 |
| 张亚萍 | 重庆市气象局 |
| 田付友 | 中国气象科学研究院，北京，100081 |
引用文本：
姚燕飞,程明虎,杨洪平,张亚萍,田付友,2007.优化ZI关系及其在淮河流域面雨量测量中的应用[J].气象,33(6):37-43.
ao Yanfei,Cheng Minhu,Yang Hongping,Zhang Yaping,Tian Fuyou,2007.Optimized ZI Relationship and Its Application to the Measurement of Rainfall in Huaihe Basion [J].Meteor Mon,33(6):37-43.
姚燕飞,程明虎,杨洪平,张亚萍,田付友,2007.优化ZI关系及其在淮河流域面雨量测量中的应用[J].气象,33(6):37-43.
ao Yanfei,Cheng Minhu,Yang Hongping,Zhang Yaping,Tian Fuyou,2007.Optimized ZI Relationship and Its Application to the Measurement of Rainfall in Huaihe Basion [J].Meteor Mon,33(6):37-43.