人民黄河Issue(2)：24-27,4.DOI:10.3969/j.issn.1000-1379.2016.02.007
山西高原降水量空间插值分析
Spatial Interpolation Analysis of Annual Average Precipitation on Shanxi Plateau
摘要
Abstract
Based on the precipitation data from 27 meteorological stations in Shanxi Plateau and its surrounding areas, the paper used some spatial interpolation methods to interpolate the annual average precipitation of Shanxi Plateau from 1981 to 2005. These methods included Inverse Distance Weight, Global Polynomial Interpolation, Local Polynomial Interpolation, Radial Basis Function, Spline, Trend, Ordinary Kriging and Empirical Bayesian Kriging. The precision of these methods was evaluated by using leave⁃one⁃out cross validation. Finally, it analyzed the precipitation spatial distribution of Shanxi Plateau which was obtained by the optimal method. The results show that a) among these methods, Radial Basis Function yields the best performance, whose mean absolute error is 25.1 mm, mean relative error is 5.7% and root mean squared error is 31.4 mm;b) according to the accuracy, the interpolation methods is ranked as:Radial Basis Function, Spline, Trend, Ordinary Kriging, Local Polynomial Interpolation, Global Polynomial Interpolation, Empirical Bayesian Kriging and Inverse Distance Weight and;c) the precipitation spatial distribution in Shanxi Plateau presents the regional characters, on the one hand, which shows a decreased trend from southeast to northwest, on the other hand, the precipitation of Mount Lyuliang and Mount Taihang is much more than that of the Fenhe River.关键词
分布规律/空间插值/降水量/山西高原Key words
distribution laws/spatial interpolation/precipitation/Shanxi plateau分类
建筑与水利引用本文复制引用
程朋,张珺,张茹,闫美芳,任鸿瑞..山西高原降水量空间插值分析[J].人民黄河,2016,(2):24-27,4.基金项目
山西省高等学校创新人才支持计划资助项目；山西省青年科技研究基金资助项目（2013021030－1）；太原理工大学人才引进科研启动项目（ TYUTRC－201240A）；太原理工大学教育教学改革项目；太原理工大学2013年校青年团队项目（2013T007）。 （）
