| 摘要: |
| 基于重庆市气象站台的实测数据和DEM数据，首先利用空间自相关系数估计重庆市降雨量的全局空间自相关性；然后利用空间联系的局部指标估计降雨量的局部空间自相关情况；最后利用反距离加权法、克里金方法、样条函数和协克里金法这4种插值方法探讨重庆市降雨量的空间的分布;分析结果表明：重庆市的年降雨量空间分布具有较强的正相关性，局部空间自相关分析表明：重庆市不同地区降雨空间的依赖程度不同，协克里金插值法的插值结果较好，降雨量的模拟结果最佳。 |
| 关键词: 空间插值，降雨模拟，相关性分析，重庆市 |
| DOI： |
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| Study on the Method of Rainfall Spatial Simulation in Chongqing |
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LIU Qiang，LIN Xiao Song
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| Abstract: |
| Based on the meteorological station data and DEM data of Chongqing, this paper firstly estimates global spatial autocorrelation of rainfall in Chongqing by using spatial autocorrelation coefficients; then estimates autocorrelation of local spatial rainfall by using local indicators of spatial association; finally, investigates the spatial distribution of rainfall in Chongqing by using four kinds of interpolation methods Inverse Distance Weighted, Kriging, the method of Splines and the Co Kriging.Spatial autocorrelation analysis shows that Chongqing annual rainfall space distribution on the whole presents strong positive correlation, and local spatial autocorrelation analysis shows that there is different dependence degree of rainfall space in different areas in Chongqing.Co Kriging interpolation results superior to other spatial interpolation method, based on which the best rainfall simulation results are obtained. |
| Key words: spatial interpolation rainfall simulation correlation analysis Chongqing |
