ABSTRACT
Hydrodynamically coupled surface and subsurface models potentially provide improved tools for understanding the drivers and impact of interventions along river corridors. However, from an application perspective, little is understood about the behavior and limitations of such coupling that could form practical guidelines for constructing models based on field-data. In this work, the use of a newly developed modelling framework that couples https://www.w3.org/1998/Math/MathML"> 2 d M b https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429069246/b59e18fc-9e1d-4389-b000-a1069c1cd27e/content/eq14229.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> (a shock-capturing finite volume shallow water equation solver) with MODFLOW 2005, allows us to focus on two key questions arising when constructing coupled models. The first is the sensitivity of the models towards the conductance-based approach commonly used for controlling the flux exchange between the surface and subsurface domain. The second consideration is regarding multidimensional flow, grid construction and associated resolution issues. By using a physically accurate representation of the surface hydraulics provided by the framework, we investigate the implication and capabilities for river corridor scale studies.
