Runoff Simulation in Semi-humid Region by Coupling MIKE SHE with MIKE 11
Liuxin *, 1, 2, Wang Dian-wu1, 3, Chi Dao-cai1, Yangning 1, 4
Identifiers and Pagination:Year: 2015
First Page: 840
Last Page: 845
Publisher Id: TOCIEJ-9-840
Article History:Received Date: 16/9/2014
Revision Received Date: 23/12/2014
Acceptance Date: 31/12/2014
Electronic publication date: 13/10/2015
Collection year: 2015
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The paper used the coupling of distributed hydrological model MIKE SHE and the hydrodynamic model of MIKE 11, to establish watershed-based rainfall-runoff mode in the sub-humid area of the north China. The hydrologic process of Xiaoling river basin was simulated with the input data, including DEM altitude, weather, vegetation, soil, land uses, etc. Through the sensitivity analysis, the soil roughness factor of overland flow, roughness of runoff, saturated hydraulic conductivity were chosen for main calibration parameters. The simulation consequences showed that the daily runoff simulation, Nash-Suttclife coefficient in the rate of regular (1990-1994/Jinzhou station) and the validation period (1995-1999/Jinzhou station) were 0.636 and 0.582, the correlation coefficient reached 0.839 and 0.788,the rate of regular Ens and R was 0.794,0.863;0.961,0.960 of month scale simulation; verification period of two stations Ens and R for 0.740,0.820;0.911,0.917. The model was practical and reliable in the basin. The simulations showed that correlation coefficients and Nash coefficient (Ens) of long series of the simulation had good accuracy in the model. In median water year, the simulation results would be better.