Influence of surface water level fluctuation and riverbed sediment deposits on groundwater regime

Abstract

The spatial and temporal patterns of surface water (SW) - groundwater (GW) exchange are significantly affected by riverbed silting, clogging or erosion processes, by altering the thickness and hydraulic conductivity of riverbed sediments. The duration of SW-GW exchange is controlled by the drainage and infiltration resistance of river bottom sediments (e.g. Andrássy et al., 2012). Generally, these two parameters primarily depend on the hydraulic conductivity and on the thickness of clogged layer.

Keywords

• surface water - groundwater interaction
• groundwater flow modelling
• infiltration/drainage resistance of rivers