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BHS Pennines Christmas Lectures: Newcastle University
The BHS Pennines Section would like to welcome you to the Newcastle University and BHS Pennines Christmas Lectures 2025 online on Monday 8th December at 12:30 13:30 GMT. This is an annual tradition for the branch to provide a platform for PhD students across the Pennines region to present their latest research on topics of interest to BHS members. The event is free to attend and will be on Zoom.
Speakers and abstracts are given below.
Ruth Dunn: Integrating Droplet Characteristics into British Rainfall Typologies and Replicating Them with a Custom-Built Rainfall Simulator
Accurately characterising rainfall is essential for understanding rainfall-driven processes such as rain-gauge undercatch, soil erosion, and infiltration dynamics, all of which depend not only on rainfall intensity but also on the microphysical properties of raindrops. This talk introduces a new approach to British rainfall classification by incorporating droplet-level characteristics into national rainfall typologies. Using disdrometer data from the Disdrometer Verification Network (DiVeN) and k-means clustering, we identify distinct rainfall types based on their microphysical signatures and demonstrate how these can be replicated using a custom-built rainfall simulator designed to reproduce the droplet size distributions of selected clusters. This integration of observational microphysics with controlled simulation provides a robust platform for quantifying rain-gauge undercatch across rainfall types and for experimental studies of how droplet size distributions influence key hydrological and environmental processes.
Medha: Quantification of Flood Mitigation Impacts of Offline Ponds in Coatham Beck, Stockton, NE England
Natural Flood Management (NFM) aims to reduce flood risk to downstream communities by implementing upland measures that slow and store runoff, complementing traditional flood defences. The Lustrum Beck Flood Alleviation Scheme (2014) in Stockton-on-Tees is the UKs first project combining NFM with conventional defences, successfully funded to reduce flood risk. To enable wider adoption of NFM, robust quantification of its performance is essential. While hydrological modelling indicates that NFM can attenuate high flows, empirical field-based evidence is limited.
This study investigates the performance of four offline runoff attenuation ponds constructed along Coatham Beck, part of the Lustrum Beck catchment. A dense hydrometric network comprising of 12 pressure transducers, 2 ultrasound flow probes, and a tipping-bucket rain gauge has been used across the monitoring site (April 2024present). The study quantifies pond storage and evaluates reduction or delay in downstream peak flows. Findings will inform the quantification, design, and replication of NFM schemes for sustainable flood risk management across the UK.
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