数据缺失下基于单位线的流量模拟应用  

Flow Simulation Based on Unit Line for Data-missing Watershed

作　　者：王国波 郭林青 徐连胜[1] Wang Guobo;Guo Linqing;Xu Liansheng(China Waterborne Transport Research Institute,Beijing 100088;Policy Research Center for Environment and Economy,Beijing 100029)

机构地区：[1]交通运输部水运科学研究院,北京100088 [2]生态环境部环境与经济政策研究中心,北京100029

出　　处：《中国农学通报》2019年第30期138-144,共7页Chinese Agricultural Science Bulletin

基　　金：国家科技支撑计划资助项目“长江水运安全风险防控技术与示范”(2015BAG20B01、2015BAG20B04);国家自然科学基金资助项目“基于多米诺效应和不确定分析的石化港区事故综合风险区域定量评估研究”(41501561)

摘　　要：针对降雨径流模拟过程中的数据缺失现状,基于不同雨型的数据缺失特征构建不同的数据缺失模式,采用不同的插值方法构建单位线,探讨不同缺失模式下的单位线推广应用。结果表明,采用不同插补方法构建得到单位线的末端拟合效果较好,对峰值的插补效果不佳。不同雨型插补后的峰值位置存在偏离现象,基于峰值偏离现象和单位线倍加原理得到单位线峰值后在进行插补得到单位线的拟合效果较好,为无资料地区的降雨径流模拟和农业非点源评估模拟提供了新的理论思考,具有较好的推广意义。According to the current situation of missing data in the rainfall runoff simulation process,different data-missing patterns were constructed based on the data-missing features of different rainfall types.Different interpolation methods were used to construct the unit line,and the popularization and application of unit lines under different missing patterns were discussed.The results showed that:the tail-fitting effect of the unit line constructed by different interpolation methods was better,and the interpolation effect to the peak was not good;there were deviations in the peak position after interpolation with different rainfall types;based on the peak deviation phenomenon and the principle of multiplication of unit lines,the fitting of the unit line after obtaining the peak value of the unit line was better,and it provided a new theoretical thinking for rainfall runoff simulation and agricultural non-point source evaluation simulation in the area of missing data,which had a good promotion significance.

关 键 词：降雨-径流 单位线 插值 峰值偏离 农业非点源 

分 类 号：X524[环境科学与工程—环境工程]