摘要
有效管理和掌握雨情信息,能够为防汛抗旱工作提供决策服务,对农业生产和生活都有很大的帮助,具有很好地现实意义。本文分别采用距离反比加权法、克里格插值法和样条函数法进行空间内插,并生成降雨量等值面图。通过对比分析,再生成研究区降雨量等值面图。最终得出结论证明:距离反比加权法的插值精度较高,适用于降雨空间插值。
Effective management and control of rainfall information,can provide service for flood control and drought relief work,are of great help to the agricultural production and life,has good practical significance.In this paper,by using the inverse distance weighting method,Kriging interpolation method and spline function method for spatial interpolation,and generate rainfall contour plot.Through the comparative analysis,and then generate rainfall contour map.Finally,it is proved that the inverse distance weighted interpolation method has high accuracy and is suitable for spatial interpolation of rainfall.
出处
《北京测绘》
2017年第5期164-166,共3页
Beijing Surveying and Mapping
关键词
空间插值算法
降雨量分析
距离反比加权法
GIS
spatial interpolation algorithm
rainfall analysis
inverse distance square weighting method
GIS
