School of Geography

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Charlotte Viner

PhD Researcher,



After graduating with a BSc in Environmental Geoscience from the University of Nottingham in 2017, I studied for a MSc in River Basin Dynamics and Management with Geographical Information Systems at the University of Leeds before returning to Nottingham to start my PhD in 2019.

Research Interests

My research interests focus on fluvial geomorphology and ecology. My undergraduate dissertation assessed the role of underlying bedrock geology in determining geomorphological characteristics of two Peak District rivers, while my MSc dissertation investigated the impact of the invasive signal crayfish (Pacifastacus leniusculus) on benthic macroinvertebrate community composition in English rivers and how these impacts affect the validity of using common biomonitoring scores for assessing water quality. My PhD combines fluvial geomorphology and ecology and aims to develop a model to predict sediment transport dynamics in rivers infested with signal crayfish.

Teaching Summary

1st Year Introduction to GIS: providing assistance and advice to students with the ArcGIS Online practical tasks; marking and giving feedback to the students for their coursework

2nd Year River Processes and Dynamics: leading laboratory flume sessions demonstrating river processes including open channel hydraulics and sediment transport

Research Summary

Research Title: Predicting Sediment Transport Dynamics in Rivers Infested with Invasive Signal Crayfish (Pacifastacus leniusculus)

Research Supervisors: Dr. Matthew Johnson (School of Geography), Prof. Nicholas Dodd (Department of Civil Engineering)

Fluvial sediment transport models often perform poorly when applied to natural channels. Invertebrate animals are known to disturb river beds and banks, altering sediment stability and transport, therefore inclusion of biological activity in the models could increase the accuracy of their predictions. However, this has not yet been widely investigated or applied. This project will determine the different biogeomorphological roles of invertebrate animals and categorise them into functional groupings of invertebrate-sediment interactions. The impact of invasive signal crayfish (Pacifastacus leniusculus) on fluvial sediment transport will then be considered, and incorporation of their impacts into sediment transport modelling frameworks will be attempted using a combination of results produced from laboratory flume experiments and computer simulations. Due to their large body size, high abundance, and burrowing behaviour, signal crayfish have a particularly significant impact on sediment dynamics in UK rivers, making them a good test organism. This work aims to increase the accuracy of sediment transport prediction in infested rivers, allow for the extrapolation of the impacts of future invasion scenarios, and provide an example modelling framework that can later be extended to other organisms.

School of Geography

Sir Clive Granger Building
University of Nottingham
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Nottingham, NG7 2RD

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