摘要
为探讨半干旱半湿润流域的产流机制,以沂河高里流域为例,采用HEC、TOPMODEL和新安江三个水文模型进行洪水模拟计算。在TOPMODEL模型中初步引入了初始土壤缺水量与地形指数间的经验关系式,结果表明在半干旱半湿润流域三个模型模拟效果良好。在洪峰及峰现时间,以超渗产流为机制的HEC模型比以蓄满产流为机制的新安江模型和TOPMODEL模型的模拟效果更好。
Three models, HEC,Xin＇anjiang and TOPMODEL are used in flood simulation of Gaoli basin. TOPMODEL is improved by establishing the relationship among initial soil-moisture deficit, topographic index and initial flow. At peak discharge and peak-time the structures of runoff-formation of the three models are of the saturation runoff type, the simulated results are good. The simulation accuracy is higher by using HEC model.
出处
《水电能源科学》
2008年第4期47-49,62,共4页
Water Resources and Power
基金
国家自然科学基金资助项目(50479017)
