Dr Xiaoli Su
PhD
Expertise
I develop computer models to simulate and predict flooding, combining river, ocean, and climate data to understand how flood risk is changing worldwide and help communities prepare for future extremes.
Current positions
Research Associate
School of Geographical Sciences
Contact
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Research interests
My research focuses on flood hazard modelling and flood risk assessment, with expertise in developing high-performance hydrodynamic models as the core engine for simulating large-scale flood dynamics. Building on this, I develop integrated modelling frameworks that combine hydrodynamic models with hydrological, ocean, and climate models, leveraging diverse Earth observation datasets including SWOT satellite water surface elevations, to simulate compound flooding in data-sparse coastal regions, project how flood hazards evolve under future climate conditions, and support to deliver actionable tools for early warning and climate adaptation.
I am currently a researcher on the REPRESA project (Resilience and Preparedness to Tropical Cyclones across Southern Africa), a CAD 8 million initiative aimed at improving early warnings and building resilience to tropical cyclones in southern Africa. The project is co-led by the Global Change Institute at the University of the Witwatersrand (WITS), Eduardo Mondlane University (UEM), and the University of Bristol (UoB), in partnership with the UK Met Office, ECMWF, the University of Reading, and other organisations. My role centres on assessing tropical cyclone flood hazards, both present-day and future, by integrating surface water, river, and coastal flooding to support impact-based early warning systems for vulnerable communities.
Prior to REPRESA, I was a Research Associate on the UKRI GCRF Living Deltas Hub, one of twelve major transdisciplinary projects funded under the £1.5 billion UK Government Global Challenges Research Fund. My work involved developing Python-based data processing pipelines integrated with hydrodynamic models to simulate large-scale fluvial flood dynamics in the Vietnamese Mekong Delta, contributing to flood risk assessments under future climate scenarios.
My doctoral research took a different but related direction, focusing on mass movement hazards. I developed a GPU-accelerated model based on the discrete element method (DEM) for high-performance simulation of flow-like landslides, and subsequently coupled it with a depth-averaged model (DAM) to capture the fully dynamic behaviour of landslide events efficiently and accurately. The coupled model was successfully applied to simulate the 2019 Shuicheng landslide in China, demonstrating its potential for real-world hazard and risk assessment.
Publications
Recent publications
01/01/2025Leveraging SWOT Surface Data for River Bathymetry Estimation and Compound Flood Model Calibration in Data-Sparse Regions
EGU General Assembly 2025
Enhancing Flood Risk Assessment through Improved Compound Flood Modelling for Tropical Cyclones
AGU Fall Meeting 2024
Calibrating a 2D high-performance hydrodynamic model for fluvial process modelling along the Mekong River
EGU General Assembly 2023
A coupled discrete element and depth-averaged model for dynamic simulation of flow-like landslides
Computers and Geotechnics
A new GPU-accelerated coupled discrete element and depth-averaged model for simulation of flow-like landslides
Environmental Modelling and Software
