Robust and accurate schemes are designed to simulate the coupling between subsurface and overland flows. The coupling conditions at the interface enforce the continuity of both the normal flux and the pressure. Richards’ equation governing the subsurface flow is discretized using a Backward Differentiation Formula and a symmetric interior penalty Discontinuous Galerkin method. The kinematic wav...

This paper deals with the problem of flood generation and propagation at catchment scale. The main aspect of the work is the use of 2D fully dynamic shallow water equations as tool of analysis for spatial and temporal overland flow evolution starting from an observed or predicted rain input. The paper firstly focuses on the model description. The governing equations and the numerical integratio...

Soil erosion is a major problem in the Loess Plateau (China); however, it can be alleviated through vegetation restoration. In this study, overland flow on slope during soil was experimentally simulated using artificial grass as cover. Nine degrees of coverage and seven rates were tested combinations along 12° gradient. As degree increased, water depth but velocity decreased. The resistance coe...

Understanding microbial pathogen transport patterns in overland flow is important for developing best management practices for limiting microbial transport to water resources. Knowledge about the effectiveness of vegetative filter strips (VFS) to reduce pathogen transport from livestock confinement areas is limited. In this study, overland and near-surface transport of Cryptosporidium parvum ha...