摘要
目前,在水文模拟等研究中再分析数据成为弥补或者替代站点实测气象数据的重要手段之一,但是,在使用时其质量和性能有待评估。通过气象插值软件对2种再分析降水数据(CFSR和CMADS)和气象站点实测降水数据(OBS)在浑河流域插值结果进行了评估,然后分别利用上述3种气象数据驱动SWAT模型以评估各自在浑河流域径流模拟的适用性。研究结果表明:CMADS与OBS的年均降水空间分布相似,年内降水分配比较一致,而且2者径流模拟效果远好于CFSR。CFSR在浑河流域存在低估强降水和高估弱降水的现象,所以径流模拟效果较差。总体而言,CMADS再分析数据和OBS在浑河流域水文模拟的适用性更强。
At present,the reanalysis datasets have become one of the important ways to make up or replace the measured meteorological data in hydrological simulation,but it is necessary to evaluate their quality and performance when they are used.In this paper,the interpolation results using meteorological interpolation software for two kinds of reanalysis precipitation datasets(CFSR and CMADS)and meteorological measured precipitation data(OBS)are evaluated in the Hunhe River Basin.Then the SWAT model is respectively driven by the above three data to evaluate their applicability of runoff simulation in Hunhe River Basin.The results show that the spatial distributions of annual precipitation of CMADS and OBS in the basin are similar,and the distributions in the year of them are consistent.The runoff simulations of SWAT model driven by CMADS and OBS are much better than that driven by CFSR.In the Hunhe River Basin,CFSR underestimates the strong precipitation and overestimated the weak precipitation,so the result of runoff simulation is poor.In general,the applicability of CMADS reanalysis data and OBS in hydrological simulation in the Hunhe River Basin is stronger.
作者
张利敏
杨明祥
王浩
ZHANG Li-min;YANG Ming-xiang;WANG Hao(Institute of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China)
出处
《中国农村水利水电》
北大核心
2020年第9期132-137,共6页
China Rural Water and Hydropower
基金
国家自然科学基金青年基金项目(51709271)
中国科协青年托举项目(2017QNRC001)
国家自然科学基金联合基金项目(U1865102)。
