计算机工程与应用2011，Vol.47Issue(23)：25-26,38,3.DOI:10.3778/j.issn.1002-8331.2011.23.007
基于时空变异函数的Kriging插值及实现
Research and realization of Kriging interpolation based on spatial-temporal variogram
摘要
Abstract
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.关键词
时空相关/变异函数/克里金插值/R语言/气温Key words
spatial-temporal correlation/variogram/Kriging interpolation/R language/temperature分类
信息技术与安全科学引用本文复制引用
李莎,舒红,董林..基于时空变异函数的Kriging插值及实现[J].计算机工程与应用,2011,47(23):25-26,38,3.基金项目
国家高技术研究发展计划(863)(the National High-Tech Research and Development Plan of China under Grant No.2008AA122201) （863）
半干旱气候变化教育部重点实验室(兰州大学)开放基金. （兰州大学）
