Multi-Scale Regional Groundwater Model Development and Calibration

As an important groundwater resources management tool, groundwater flow model has been extensively used for estimating water balance and flow dynamics of aquifers. In addition, regional-scale flow model with coarse grid can provide hydrologic context to establish boundary conditions of the site-scale contaminant transport model with fine grid. In this study, a regional groundwater flow model is developed for a hydrogeological drainage basin, and calibrated using water level measurements. Particle tracking is then conducted to estimate the travel path of contaminants from the potential sources, which helps to define the domain for transport sub-model. Parent-child grid coupling between coarse flow model and higher-resolution transport model are demonstrated using finite element control volume techniques.

Author(s): Mingjie Chen, Osman A Abdalla and Azizallah Izady

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