Modelling Density-driven Flows in Coastal Aquatic Environments

Abstract

This talk will focus on my ongoing research interests in density and/or buoyancy driven flow phenomena in coastal margins (e.g. estuaries, fjords and sea-straits). The talk will present a number of case-studies that have motived this work, including: modelling deep water renewal events in Bolstadfjord (a coastal fjordic system in Norway); and flow dynamics and "salt wedge" intrusion in the Ebro river estuary (i.e. within the Ebro Delta region in Spain). This research has combined experimental and numerical model simulations of these density driven and stratified flows, utilising both idealised and geometrically realistic representations of the different channel topographies under consideration. These studies have often been motivated by enhancing our understanding of climate change and other anthropogenic impacts in coastal and marine environments; specifically, how these factors may influence the magnitude, form and intermittency of density-driven flow events in estuaries, fjords and sea-straits and their potential knock-on effects on aquatic water quality and marine ecology.

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