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提高最优插值法测量区域降水量 精度的探讨
引用本文:李建通,杨维生,郭林,陈泽面.提高最优插值法测量区域降水量 精度的探讨[J].大气科学,2000,24(2):263-270.
作者姓名:李建通  杨维生  郭林  陈泽面
作者单位:福建省厦门市气象局,厦门 361012
摘    要:首先从理论上研究了要素场相关函数和校准雨量站的分布对最优插值中最优权重系数的影响,然后用3种相关函数模型对1996~1997年收集的113个时次的雷达和雨量计资料进行计算、检验。结果表明:采用自适应相关函数模型的最优校准法可以有效提高区域降水量的测量精度。另外,通过对大误差的产生原因分析,给出合理设置自动雨量站的建议和解决边界测量精度较低的方法。

关 键 词:最优插值    区域降水量    精度    自动雨量站

A Study of Improving Precision of Measuring Regional Precipitation in Optimum Interpolation Method
Li Jiantong,Yang Weisheng,Guo Lin and Chen Zemian.A Study of Improving Precision of Measuring Regional Precipitation in Optimum Interpolation Method[J].Chinese Journal of Atmospheric Sciences,2000,24(2):263-270.
Authors:Li Jiantong  Yang Weisheng  Guo Lin and Chen Zemian
Abstract:We firstly studied influence of power coefficients in optimum interpolation by correlation function of element field and distribution of gauge Then three correlation function models were used to calculate 113-hour data of radar and gauge The result show: the adaptive correlation functions model can far more develop precision of measuring regional precipitation With analysis of the cause of large errors, we finally gave suggestion of setting automatic gauges and method of solving lower precision on boundary
Keywords:optimum interpolation method  amount of regional precipitation  precision automatic gauge
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