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引用本文:叶金印,高玉芳,李致家.雷达测雨误差及其对淮河流域径流模拟的影响.湖泊科学,2013,25(4):593-599. DOI:10.18307/2013.0418
YE Jinyin,GAO Yufang,LI Zhijia.Radar-rainfall errors and their effect on runoff simulation in Huaihe River basin. J. Lake Sci.2013,25(4):593-599. DOI:10.18307/2013.0418
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雷达测雨误差及其对淮河流域径流模拟的影响
叶金印1,2, 高玉芳3,4, 李致家1
1.河海大学水文水资源学院, 南京 210098;2.淮河流域气象中心, 蚌埠 233040;3.南京信息工程大学江苏省农业气象重点实验室, 南京 210044;4.南京信息工程大学应用气象学院, 南京 210044
摘要:
将雷达测雨数据与分布式水文模型相耦合进行径流过程模拟,分析雷达测雨误差及其径流过程模拟效果,研究雷达测雨误差对径流过程模拟的影响效应.在对淮河流域气象中心业务化的5种淮河流域雷达测雨数据进行误差分析的基础上,采用雷达测雨数据驱动HEC-HMS水文模型,模拟分析淮河息县水文站以上流域2007年7月1-10日强降雨集中期的径流过程.结果表明:利用雷达测雨数据的径流模拟结果与实测资料的模拟结果基本吻合,各种雷达测雨数据误差经过HEC-HMS水文模型传递后,误差明显减小.联合校准法对应的模拟效果最好,过程流量相对误差NBs'和洪峰流量相对误差Z'分别为-20.2%和-13.3%.
关键词:  雷达测雨  水文模型  径流模拟  误差传递  淮河流域
DOI:10.18307/2013.0418
分类号:
基金项目:国家自然科学基金项目(40875012,40905019);国家自然科学基金青年项目(41105077);江苏省自然科学基金面上项目(SBK201222411);公益性行业(气象)科研专项项目(GYHY201006037)联合资助
Radar-rainfall errors and their effect on runoff simulation in Huaihe River basin
YE Jinyin1,2, GAO Yufang3,4, LI Zhijia1
1.College of Hydrology and Water Resources, Hohai University, Nanjing 210098, P.R.China;2.Huaihe River Basin Meteorological Center, Bengbu 233040, P.R.China;3.Jiangsu Key Laboratory of Agricultural Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, P.R.China;4.School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044, P.R.China
Abstract:
Coupling radar-rainfall data with distributed hydrological model was important in improving flood forecast precision and leading time.However,radar-rainfall error propagation in hydrological model largely affected runoff process simulation.In this study,the operational radar-rainfall data,provided by Huaihe River basin Meteorological Center,was analyzed.With HEC-HMS hydrological model input,radar-rainfall data was used to simulate and analyze the runoff process of rainfall concentration period,in the Xixian hydrological station of Huaihe River basin,during July 1 10,2007.The results showed that runoff simulation based on radar-rainfall data was consistent with the simulation based on rain gauge data.The radar-rainfall input error had been decreased obviously after the propagation of the HEC-HMS model.Runoff simulation based on radar-rainfall data by union calibration was the best,whose relative error were-20.2% and-13.3% for flow process and peak flow,respectively.
Key words:  Radar-rainfall estimation  hydrological model  runoff simulation  error propagation  Huaihe River basin
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