| 时空协克立格模型在估计缺测年径流数据中的应用 |
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| 引用本文： | 刘小燕,朝伦巴根,王亮,李凤玲.时空协克立格模型在估计缺测年径流数据中的应用[J].灌溉排水学报,2008,27(6):77-80. |
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| 作者姓名： | 刘小燕 朝伦巴根 王亮 李凤玲 |
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| 作者单位： | 内蒙古农业大学水利与土木建筑工程学院,呼和浩特010018 |
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| 基金项目： | 国家自然科学基金
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| 摘 要： | 利用年径流时空上的统计特性,用时空协克立格法对缺测径流数据进行了估计。该法的有效性决定于对反应有孔穴效应年径流的变差函数的合理拟合。根据年径流系列变差函数非单调递增、具有周期波动特性,用指数函数型一维孔穴效应模型,拟合实测年径流系列的变差函数,确定出协同克立格法最优估计的参数,并估计了缺测年径流数据,取得令人满意的插值结果。
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| 关 键 词： | 孔穴效应模型 直接-交叉变差函数 时空协克立格法 缺测径流插补 |
The Application of Time-space Co-kriging Method for Estimating Missed Annual Runoff Records |
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| LIU Xiao-yan,Chaolunbagen,WANG Liang,LI Feng-ling.The Application of Time-space Co-kriging Method for Estimating Missed Annual Runoff Records[J].Journal of Irrigation and Drainage,2008,27(6):77-80. |
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| Authors: | LIU Xiao-yan Chaolunbagen WANG Liang LI Feng-ling |
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| Institution: | LIU Xiao-yan,Chaolunbagen,WANG Liang,LI Feng-ling(College of Hydraulic , Civil Engineering,Inner Mongolia Agricultural University,Huhhot 010018,China) |
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| Abstract: | The problem of stream flow record reconstruction is aimed at using all available estimate missing values.The annual runoff records present the stationary and lag-one autocorrelations in the time and the cross-correlations behavior between different gagging stations in the space.The missing runoff records have been estimated by time-space Co-kriging in terms of these behaviors.The validity of time-space Co-kriging depends on how correct fitting the variograms of annual runoff records which appear Hole-effect... |
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| Keywords: | hole-effective model direct-cross variogram time-space Co-kriging estimating the missing runoff records |
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