The Severn Estuary has the third highest tidal range in the world with its spring tidal range reaching 14 m. The estuary is extremely turbid with very high suspended sediment concentrations and limited light penetration through the water column. It has large areas of intertidal mudflat which are of major conservation importance. Hence, it is protected under several European legislative directiv...

This paper explores a method to combine the time and space continuity of a large-scale inundation model with discontinuous satellite microwave observations, for high-resolution flood hazard mapping. The assumption behind this approach is that hydraulic variables computed from continuous spatially-distributed hydrodynamic modeling and observed as discrete satellite-derived flood extents are corr...

Artificial barriers on lowland rivers impede the spawning migrations of anadromous fishes, preventing access to historical areas. In cryptic European shads Alosa alosa and fallax (‘shad’ hereafter), this has resulted in population declines across their range. Conservation programmes aim facilitate passage migrators over these so require baseline information spatial temporal extent current migra...

10 This paper presents an investigation of the impacts of a Severn Barrage on the hydro-environment of 11 the Bristol Channel and Severn Estuary using the Environmental Fluid Dynamics Code (EFDC) model 12 with a recently developed Barrage module (EFDC_B). Details are given of a barrage module being 13 implemented into the EFDC model to represent the various hydraulic structures, such as turbine...