摘要
为研究不同计算时段对半湿润半干旱地区次洪模拟的影响，选取西泉流域1973～1999年不同年代具有代表性的次洪降雨径流资料，采用不同时段步长、应用垂向混合产流模型模拟计算并对比分析结果。结果表明，计算时段为0．5h的洪峰模拟与洪水过程拟合程度模拟效果优于1h的模拟结果。
In order to study the influence of different time steps on the simulation of the flood events in semi-arid and semi-humid regions, the vertically-mixed runoff yield model is applied to simulate the hydrological process under the different time steps（1h and 0. 5h） and the results are analyzed based on the representational data including precipitation, the daily observed discharge, flood events of Xiquan Basin during 1970 to 1999 years. The results show that the simulation effect of peak and fitting process with the time steps of half hour is much better than that of one hour time steps.
出处
《水电能源科学》
北大核心
2010年第4期56-58,共3页
Water Resources and Power
基金
国家重点基础研究发展973计划基金资助项目(2006CB400502)
高等学校学科创新引智计划基金资助项目(B08048)
教育部"长江学者和创新团队发展计划"基金资助项目(IRT0717)
教育部科学技术研究基金资助重大项目(308012)
水利部公益性项目专项经费基金资助项目(200701031)
关键词
不同时间步长
垂向混合产流模型
次洪模拟
计算时段
评价
西泉
different time steps
vertically-mixed runoff yield model
flood event simulation
calcuation time interval
evaluation
Xiquan Basin
