Dr Andrew Nicholas
Associate Professor in Physical Geography

Research

Do floods matter? Bridging the gap between fluvial morphodynamics and alluvial architecture.

This NERC funded project is scheduled to start in late 2010. It involves Andrew Nicholas (PI), Rolf Aalto & Luiz Aragao at the University of Exeter, and Greg Sambrook Smith at the University of Birmingham.

Morphodynamics and sedimentology of the tidally influenced fluvial zone

This NERC funded project is scheduled to start in late 2010. It is led by Phil Ashworth (University of Brighton) and also involves Andrew Nicholas (Exeter), Greg Sambrook Smith (Birmingham), Dan Parsons (Leeds), Jim Best (Illinois), and project partners ExxonMobil and Deltares.

Dynamics and deposits of braid-bars in the World’s largest rivers: Processes, morphology and subsurface sedimentology

This NERC funded project runs from 2008 to 2011. It is led by Phil Ashworth (University of Brighton) and involves a team from Brighton, Birmingham, Durham, Exeter, Leeds, Illinois, Santa Fe and Corrientes.

Impacts of climate change on erosion, sediment transport and soil carbon in the UK and Europe

This NERC funded project runs from 2007 to 2010. It is led by Vicky Bell (Centre for Ecology & Hydrology) and involves a team from CEH, and the Universities of Exeter and Leeds. The main aim of the project is to develop and apply numerical models to quantify sediment and associated carbon fluxes through drainage basins and to evaluate the possible impacts on these fluxes of future climate change.

Flood hydraulics and lowland floodplain sedimentation

Andrew has collaborated with Des Walling on a number of past NERC funded projects that have focused on methods of quantifying overbank sedimentation on lowland UK floodplains at both reach and catchment scales.

Hydrodynamics of gravel-bed rivers

Research into flow hydraulics within gravel-bed rivers has involved a combination of field investigation (using Acoustic Doppler Velocimetry) and 2D and 3D numerical modelling.

Alluvial fan evolution over contemporary and Holocene timescales

Andrew has collaborated with Tim Quine to investigate controls on alluvial fan evolution using field, numerical modelling and laboratory experimentation.

Reduced complexity modelling of river evolution

Reduced-complexity (RC) models are based on simple abstractions of the physics governing flow and sediment transport and have the potential to provide insight into emergent phenomena, while also benefiting from greater computational efficiency than conventional modelling approaches.