摘要
分析了变异函数的五种理论模型,采用了各种模型进行插值计算,实现了对我国某区域重力异常数据进行空间插值。
We introduced and analyzed five semivariogram models in Kriging method, and in- terpolated the discrete data separately. The test results verify that the spherical model has the best interpolation precision, and exponential model, power function model, gaussian model also have preferable results. The logarithmic model is not suitable for its＇ limited calculation when the distance between two points is short.
出处
《测绘信息与工程》
2010年第1期42-43,共2页
Journal of Geomatics
基金
武汉大学地球空间环境与大地测量教育部重点实验室开放基金资助项目(08-02-03)
关键词
普通克里金法
变异函数
重力异常
ordinary Kriging method
semivariogram
gravity anomaly
