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文章以安阳河流域为例,采用TOPMODEL模型进行日径流过程模拟和次洪模拟计算,以流域内1990-1994年雨量站及水文站的实测数据进行模型率定,以1980-2004年的实测资料对模型进行检验。TOPMODEL模型模拟结果表明:模拟期Nash系数平均值为0.79,洪峰预报误差的平均值为-21.10%,峰现时间平均值为-3h;检验期Nash系数平均值为0.85,洪峰预报误差平均值为-15.20%,峰现时间平均值为-2h。TOPMODEL模型在安阳河流域的预报水平为乙等水平。模型在该流域具有较强的适用性,可以用于安阳河流域汛期的流量预报,可为流域的安全运行和科学管理提供数据支持。
Taking Anyang River Basin as an example, the TOPMODEL model was used to simulate the daily runoff process and the next flood simulation. The model calibration was made based on the measured data of rainfall stations and hydrological stations from 1990 to 1994 in the basin. Based on the measured data from 1980 to 2004 Test the model. The simulation results of TOPMODEL model show that the average value of Nash coefficient is 0.79, the average value of peak forecast error is -21.10% and the average peak time is -3h; the average value of Nash coefficient is 0.85 in test period, the average of peak forecast error is -15.20%, the average peak time is -2h. The forecast level of TOPMODEL model in Anyang River Basin is B level. The model has strong applicability in this basin, which can be used for forecasting the flow in the flood season of Anyang River Basin. It can provide data support for the safe operation and scientific management of the basin.