Significance of groundwater dynamics within hydrologic models in Alder Creek, Grand River Watershed, Ontario

The main objective of this research project is to examine the significance of shallow/deep groundwater flow including the unsaturated zone on surface water flow predictions within the Alder Creek Watershed located in the Grand River Basin using high resolution numerical model simulations. This project is supported by the Global Water Futures Program funded by Canada First Research Excellence Fund.

A high-resolution, 3D, transient numerical model of the Alder Creek watershed using HydroGeoSphere, a fully-integrated 3D hydrologic flow and contaminant transport mode will be developed. The lithology information from borehole logs and topography data at Alder Creek will be used to construct a geologic model and then to construct a three-dimensional grid. Layer information identified in the constructed geological model will then be introduced to the grid to generate the 3D groundwater flow model. The hydraulic head data will be used as initial condition and well installation, pumping/injection records, precipitation, evapotranspiration will be used as boundary condition. The constructed hydrologic model will be used to investigate the groundwater dynamics on watershed, and also to be parameterized, calibrated, and validated.

Illman, W., and Tong, X. (2019). Significance of groundwater dynamics within hydrologic models in Alder Creek, Grand River Watershed, Ontario. Waterloo, Canada: Canadian Cryospheric Information Network (CCIN). Unpublished Data.

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