摘要
提出使用新的途径──排序配对逼近法得出的双线偏振雷达降水估测ＺＲ关系参数因子比线性拟合法具有更好的代表性，且能体现提高区域降水估测精度，也能根据实际情形采用其它的误差类型作为获取及衡量参数的标准。对指数函数形式的ＺＲ关系来说，其参数因子Ａ０，ＡＨ及ＡＤＲ分别为０．０１６８４，０．０９６和－０．４１６５。该方法可以推广应用到多个变元及参数因子的复杂函数中。
Parameter of Z R relation for precipitation estimate using dual linear polarization radar getted though ASP(approximate along sort and pair) method have been representativenese then linear fit. ASP method can give expression to the objective of raising the precision of estimate area precipitation. It can use other error to measure the parameter in concrete conditions,too. High error of observed intensity of rain is dominant factor that using ASP method to get the parameter. Parameter A 0,A H and A DR of Z R relation of exponent function is 0.016 84,0.096 and -0.416 5,respectively. The method can be applied to complicated function of many variance and factor.
出处
《高原气象》
CSCD
北大核心
1999年第1期97-108,共12页
Plateau Meteorology
基金
"八.五"攻关课题
国家自然科学基金
兰州分院择优基金
关键词
双线偏振雷达
差反射率因子
降水估测
配对逼近
Dual linear polarization radar Differential reflectivity Precipitation estimate ASP(approximate along sort and pair) method
