| 滦河流域月降雨空间变异性研究 |
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| 引用本文： | 黄兵,胡铁松.滦河流域月降雨空间变异性研究[J].中国农村水利水电,2006,0(10):28-30. |
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| 作者姓名： | 黄兵 胡铁松 |
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| 作者单位： | 水资源与水电工程科学国家重点实验室,武汉大学,武汉,430072 |
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| 摘 要： | 介绍了 权重系数法推求普通kriging的理论半变异函数模型参数，并将这种方法应用到滦河流域月降雨空间变异性研究中，然后采用交叉验证法检验了kriging法的插值效果。根据计算结果分析可知，各月变程变化范围较大，其中8月份变程最大，为178km，说明该月降雨空间变异性最小。同时，各个月份的 比值范围在0～23.08%之间，这表明滦河流域降雨量具有较强的空间相关性。
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| 关 键 词： | kriging法 法 交叉验证法 |
| 文章编号： | 1007-2284(2006)10-0028-03 |
| 收稿时间： | 2006-02-21 |
| 修稿时间： | 2006年2月21日 |
Analysis of the Spatial Variability of Monthly Rainfall in Luan River Basin |
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| HUANG Bing,HU Tie-song.Analysis of the Spatial Variability of Monthly Rainfall in Luan River Basin[J].China Rural Water and Hydropower,2006,0(10):28-30. |
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| Authors: | HUANG Bing HU Tie-song |
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| Affiliation: | State Key Lab of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China |
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| Abstract: | This paper presents the weighted sum of squares (WSS) technique for parameter identification of the semi-variation function of ordinary Kriging method,and technique is applied in the analysis of spatial variability of monthly rainfall in the Luan River basin.Cross validation is adopted to examine the interpolation precision of ordinary kringing method.From the final parameters attained,it is indicated that the ranges of precipitation variation in each month in the studied time series varies greatly.The range of the variation in August is up to 178 mm,which is the maximal,and this indicates that the spatial variability of this month is the minimum.All the value of spatial variability is between zero and 23.08%,which indicates that the rainfall in Luan River basin has stronger spatial correlation. |
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| Keywords: | Kriging method WSS cross validation |
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