Coupled SOBEK and Visual MODFLOW Model for Yellow River Delta Water Resources Interaction Analysis

When using groundwater model to simulate surface water - groundwater interaction, the common method is to input the interpolated surface water levels provided by the local Hydrologic stations. This method fails to work when river bed undulates too large or the location or number of hydrologic stations can' t meet the simulating demand. In this paper, SOBEK' s one dimensional river level simulation results and estimated two dimensional wetland water level are used as 'the boundary conditions for Visual MODFLOW. The resulting model is used to simulate the groundwater changes under the influence of surface water in Yellow River Delta (YRD). It is indicated that the coupled model can enhance the reliability and accuracy of the simulated results.