The hillslope-storage Boussinesq model for non-constant bedrock slope

摘要: In this study the recently introduced hillslope-storage Boussinesq (hsB) model is cast in a generalized formulation enabling to handle non-constant bedrock slopes (i.e. profile curvature). This generalization extends analysis of hydrological behavior hillslopes arbitrary geometrical shape, including having curved shapes. The hsB performance for free drainage scenario evaluated by comparison full three-dimensional Richards equation (RE) based model. results are presented form dimensionless storage profiles and outflow hydrographs. addition, both models kinematic wave (KW) enables us assess relative importance diffusion processes different hillslope shapes, analyze influence curvature on flow patterns specifically. setup consists set nine gentle (5% slope) steep (30% varying plan shape curvature. Interpretation shows that highly conductive soils simulated hydrographs RE match remarkably 5% slope all curvatures. slightly poorer average 30% slope, particular, divergently shaped hillslopes. assessment hydraulic diffusion, we find good agreement simulation KW compared from divergent uniform hillslopes, due relatively low ratio between water table gradient convergent or Overall, demonstrate that, addition as represented an important control subsurface response.