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《Computer Engineering and Applications》 2011-23
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Research and realization of Kriging interpolation based on spatial-temporal variogram

LI Sha1,2,SHU Hong1,DONG Lin11.State Key Lab of Info. Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430079,China 2.Department of Mechanical and Electrical Engineering,Hubei University of Education,Wuhan 430205,China  
The Kriging method is generally used in spatial variable interpolation,but not directly in spatial-temporal variable. It needs to be extended to space-time.The spatial-temporal Kriging,with R language,is applied for the spatial-temporal interpolation research and realization of monthly average temperature.The seasonal part has been removed from original temperature data by time series decomposition.A kind of product-sum variogram in space-time,describing the spatial-temporal correlation,is constructed based on pure spatial variogram and pure temporal one.The realization steps with R software are given. Spatial-temporal Kriging extended from ordinary Kriging is used in the temperature data.The experimental results show that this Kriging method based on spatial-temporal variogram has satisfied accuracy,which supplies an effective approach for interpolation and estimation of spatial-temporal variables.
【Fund】: 国家高技术研究发展计划(863)No.2008AA12Z201;; 半干旱气候变化教育部重点实验室(兰州大学)开放基金~~
【CateGory Index】: O174.42
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