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Hydrodynamics in the Luanhe River Alluvial Fan of the Piedmont Plain Zone, China

This paper investigated the interaction of groundwater and river in an alluvial fan of the piedmont plain zone, China. Field observations of groundwater level were performed. The three-dimensional finite element model using the simulator Feflow was used to simulate the observed groundwater level. The model was auto-calibrated against observations of groundwater head from wells distributed across the region. Good correspondence between simulated and measured water level was found for the monitored wells. The relatively small magnitudes of RMSE and MAE indicate that the predictions of the numerical model are reasonable. The water balance difference is -49.9×104m3/d, which indicates that the water balance is negative balance.