长江科学院院报2019，Vol.36Issue(4)：19-26,8.DOI:10.11988/ckyyb.20170624
雨量站网分布对雨量插值算法及径流响应的影响
Influence of Rain Gauges Network Configuration on the Accuracy of Rainfall Spatial Interpolation and Hydrological Modeling
摘要
Abstract
To investigate the influence of rain gauges network configuration on the accuracy of rainfall spatial inter-polation and hydrological modelling,we selected different distributions of six rain gauges over the study basin and compared the results of four interpolation methods for 9-year(2006-2014) daily rainfall data. Then we calculated the mean areal daily rainfall series for different network configurations and used as the inputs of Xinanjiang model to obtain the simulated runoff. The results show that: 1) evenly distributed rain gauges lead to smaller rainfall interpo-lation error and higher hydrological modeling efficiency; 2) when the rain gauges are evenly distributed, no signifi-cant differences among the four rainfall interpolation results are found, while when the rain gauges are unevenly dis-tributed, such differences are obvious especially for small rain gauge density networks; and 3) for point rainfall in-terpolation, Kriging interpolation method in consideration of spatial autocorrelation in residuals performs better than the other methods in calculating actual daily rainfall; for mean areal rainfall,the difference between different inter-polation methods is small so we suggest to adopt a simple interpolation method, such as Thiessen Polygons or in-verse distance weighted method.关键词
雨量站网/空间插值算法/日降雨/新安江模型/克里金Key words
rain gauges/ spatial interpolation/ daily rainfall/ Xinanjiang Model/ Kriging分类
天文与地球科学引用本文复制引用
汪青静,杨欣玥,陈华,许崇育,曾强,徐坚..雨量站网分布对雨量插值算法及径流响应的影响[J].长江科学院院报,2019,36(4):19-26,8.基金项目
国家自然科学基金项目(41401554) （41401554）
广东省自然科学基金项目(2015A030313596) （2015A030313596）
广东省教育厅特色创新项目(2015KTSCX062) （2015KTSCX062）
广东省普通高校工程技术研究中心项目(2016GCZX001) （2016GCZX001）
广东省农业技术需求研究与示范项目(2017LM4170) （2017LM4170）
广州市科技计划项目(2014Y2-00526) （2014Y2-00526）
广州市越秀区科技创新和产业化专项(2016-GX-004) （2016-GX-004）
