摘要
分别以位于黄土高原北部沟壑区的六道沟流域和日本鸟取县境内的山区流域-Bukuro流域为研究区,对两个研究区域土壤垂直剖面模型化,以运动波基础方程式结合GIS-Arc Map构建分布式流域降雨-径流数值模型;以对观测径流过程的数值模拟检验模型实用性。结果表明,模型计算精度较高,数值模拟结果误差<3%,观测流量过程和数值计算结果之间的皮尔森相关系数在0.90以上,为地表径流准确推算提供科学计算方法。
The Liudaogou Basin which is located at hilly-gully area of the northern Loess Plateau and Bukuro Basin which is located at mountain area of the Tottori County of Japan were adopted as the study locations. Modeling of soil vertical profile of the study locations was carried out; the numerical model for rainfall-runoff was developed based on the equations of kinematic wave theory combined with GIS-ArcMap; Applicability of the model was validated through numerical simulation of the observed runoff process. The results indicated that the simulation results were with relatively high precision, the error was less than 3%. And Pearson correlation coefficient between the curve of the observed flow discharge and the calculated one was more than 0.90. A scientific method for surface runoff estimation was therefore provided for the study locations.
出处
《东北农业大学学报》
CAS
CSCD
北大核心
2015年第9期93-101,共9页
Journal of Northeast Agricultural University
基金
国家自然科学基金项目(41271046)
扬州大学新世纪人才工程项目-优秀青年教师(5015-137050209)
扬州市“绿扬金凤计划”优秀博士人才项目(yzlyjfjh2013YB105)
关键词
流域
地形
分布式水文模型
降雨-径流
数值模拟
basin
topography
distributed hydrological model
rainfall-runoff
numerical simulation
