Victoria Janes
PhD student

Research

Research projects

Funding bodies: ADAS and the University of Exeter.

Project title: The influence of climate and land-use change on sediment mobilisation and storage within UK catchments.

Supervisors: Dr Andrew Nicholas and Professor Timothy Quine (University of Exeter), Adrian Collins (ADAS).

Project description: The overall aim of the project is to develop an improved model for simulating and predicting fine sediment transfers and budgets within UK catchments. I aim to develop improved catchment and sediment transfer modelling approaches that will be computationally efficient and not require large amounts of data. Additionally the new approaches should have an improved capacity to deal with conditions beyond the calibration data set and a reduced reliance on local empirical relationships, making them better adapted for coupled model applications for estimation of the effects of climate and land-use change.

Within the project I aim to develop existing sediment generation models used for sediment budget predictions within UK catchments. Increased sediment loads within river catchments have well-documented detrimental effects on water quality and catchment management plans are required to address reduction and mitigation of these problems. In order do this it is essential that tools are available that deliver reliable sediment generation data at appropriate temporal and spatial scales. Currently, most sediment generation models do not include bank erosion individually as a sediment source. Therefore, to enable improved accuracy in predictions of future sediment pressures under environmental change, explicit modelling of the rates of sediment production by the bank erosion component of the catchment sediment budget is needed.

In this study, an existing prototype national bank erosion index is being refined as part of a wider study modelling the response of catchment sediment budgets to climate and land use change scenarios. Relationships between volume of eroded sediment and key physical factors controlling the rates of channel migration have been investigated. I aim to develop an index incorporating factors observed to have significant influence on bank erosion rates from this research.

Presentations/Publications/Conferences/Symposiums:

  • April 2012: British Hydrological Society - Peter Wolf early career Hydrologists’ event – Birmingham (Oral Presentation) ‘Development of a bank erosion modelling tool for informing catchment management.’
  • February 2012: Avon Demonstration Test Catchment AGM – Salisbury (Poster Presentation) ‘Development and testing of a bank erosion modelling tool for informing catchment management.’
  • December 2011: American Geophysical Union 2011 – San Francisco (Oral Presentation) ‘Development and testing of a bank erosion modelling tool for informing catchment management.’
  • September 2011: Catchment Science 2011 – Dublin (Poster Presentation) ‘Development of a technique to model the volume of sediment generated by bank erosion processes within UK catchments’.
  • January 2011: Avon Demonstration Test Catchment local launch – Salisbury (Poster Presentation) ‘Impact of climate and land-use change on fine sediment transport and storage in UK catchments’.

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