Prof Suzanne Gray
Applications accepted all year round
About the Project
Flash floods are acute hazards with long-term social-economic consequences and it is essential that they be accurately understood and predicted. Recent devastating flash flood events include the Boscastle flood of 2004 and the Cockermouth flood of 2009. Two of the three principal mechanisms behind UK flash-flooding events are convective storms and orographic rainfall (the other being frontal systems). Although convection and orography may act independently to produce extreme rainfall, they are often closely linked over the complex UK terrain. The mechanical ascent upstream, over, and downwind of steep terrain and the thermally-driven ascent due to elevated heating lead to storms in convectively unstable airflow. Because orography is fixed in space, these storms may anchor to specific terrain features and focus their rainfall over preferred areas leading to bands of rainfall (termed rainbands). In particular, quasi-stationary rainbands, locked to the terrain, are a manifestation of orographic convection that greatly increases flood risks because they focus heavy rainfall over specific regions.
In this project we will investigate the mechanisms that lead to the formation of rainbands downwind of mountains. We will use an idealised version of the operational Met Office weather forecast model to explore potential mechanisms, exploiting the control afforded by idealised simulations.
The project is co-supervised by David Schultz (Univ. Manchester) and Dan Kirshbaum (McGill University)
Further details of the project can be found at
http://www.met.reading.ac.uk/pg-research/further_particulars_PhD_PRESTO.pdf
General information on the PhD programme at the Department of Meteorology can be found at
http://www.met.reading.ac.uk/pg-research/
Funding Notes
Full funding is available to UK students and and to other students from the European Union who have resided in the UK for 3 years of more. Start date as soon as possible. Funding is not available for students from outside of the European Union.
This project would be suitable for students with at least an upper second class degree in mathematics, physics, meteorology, engineering or a closely related physical or environmental science or a good pass at the masters level.
The project is available to start as soon as possible