Residual circulation modelling at the national UK scale to identify possible sediment pathways to inform decadal coastal geomorphic evolution models

A coastal area model of the UK has been setup to investigate the coastal residual circulation to identify possible sediment sources and sinks to inform coastal geomorphic models of alongshore and cross-shore sediment pathways. This study investigates the sensitivity of the annual residual to more realistic forcing and wave-current coupling. Two contrasting case study sites, one in the northwest the other in the southeast of the UK, are analyzed in more detail to identify the vertical variability within the residual circulation to suggest how the transport pathways for suspended and bedload material may differ to inform the regional management schemes.