Improve Spatiotemporal Kriging with Magnitude and Direction Information in Variogram Construction

作     者：CHEN Dingxin LIU Daizhi LI Yihong MENG Liang YANG Xiaojun 

作者机构：PLA Rocket Force Engineering University 

出 版 物：《Chinese Journal of Electronics》 (电子学报(英文))

年 卷 期：2016年第25卷第3期

页      面：527-532页

核心收录：

学科分类：02[经济学] 0202[经济学-应用经济学] 020208[经济学-统计学] 081801[工学-矿产普查与勘探] 07[理学] 08[工学] 0818[工学-地质资源与地质工程] 0714[理学-统计学（可授理学、经济学学位）] 070103[理学-概率论与数理统计] 0701[理学-数学] 

基　　金：supported by the National Natural Science Foundation of China(No.41374154 No.61304240) 

主　　题：Spatiotemporal Kriging Variogram Vector distance criterions Vector directional filters 

摘      要：Magnitude information and direction information are utilized to improve the spatiotemporal Kriging method in the step of variogram construction. Basement of spatiotemporal variogram construction is to calculate vector distance between time slices, and space slices. Criterions of vector distance to spatiotemporal variogram construction is discussed, and a new vector distance model considering both magnitude and direction information is proposed. Case study using data from National Network of Geomagnetic Observatories of China is carried out for cross validation. Results illustrate that the proposed model performs better in analyzing in the statistics of Mean absolute error(MAE) and Mean square error(MSE). The accuracy of spatiotemporal Kriging interpolation is improved with such an operation in vector distance.