Automatic Fit of the Variogram

摘要：

The automatic fit of the experimental variogram is a difficult problem of geostatistics. In order to solve the fitting problem, an improved linear programming method is presented in this paper. In combination with the advantages of weighted polynomial method and linear programming method, the new method uses the inverse of lag distance as weight coefficient. We can rationally estimate the parameters of a spherical model by this method. For illustration, an example is utilized to show the feasibility of the improved method in solving the fitting problem. Empirical results show that the fittd curve of spherical theoretical model, which is obtained by this method, is more representative of the experimental variogram values. The improved linear programming method can effectively solve the automatic fitting problem of the experimental variogram, and a uniform and objective estimation of optimal parameters will be obtained by this method.

关键词： linear equation set variogram lag distance geostatistics linear programming

作者: Shaohua Li Wentao Lu

作者单位: College of Earth Science,Yangtze University,Jingzhou,434023,China

会议类型: 国际会议

会议名称: Third International Conference on Information and Computing(第三届信息与计算科学国际会议 ICIC 2010)

会议地点: 无锡

会议语种:英文

页码: 129-132

在线出版日期: 2010-06-04（万方平台首次上网日期，不代表论文的发表时间）