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Multi-Source Remote Sensing for Enhanced Flood Modelling


   Postgraduate Training

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  Dr P Miller, Dr S Addy, Dr Claire Walsh, Prof J Mills  No more applications being accepted  Competition Funded PhD Project (European/UK Students Only)

About the Project

Flooding is a major societal challenge with significant direct and indirect impacts. Hydrodynamic models are important for accurately modelling floods and understanding adaptations required to improve resilience. These models require topographic data defining the channel and floodplain. Currently, this is assembled through relatively sparse measurements from cross-sections and walk-over surveys. However, emerging remote sensing techniques are of increasing relevance and offer a non-contact means of deriving detailed topography and other key variables related to hydromorphological characterisation (e.g. pool-riffle sequences, gravel bars, riparian vegetation). Unmanned aerial vehicles (UAVs or drones), in combination with compact digital cameras, can deliver high resolution digital elevation models (DEMs) and orthoimagery, which offer a flexible and low-cost approach for reach-scale characterisation. Furthermore, recent developments in airborne laser scanning (lidar) enable remote measurement of river bathymetry and water depth, with huge potential for seamless mapping of fluvial topography. However, there remain significant challenges in intelligent extraction of relevant variables, requiring development of enhanced segmentation algorithms and adoption of big data analytics approaches. This project will collect UAV imagery at an existing test site, and integrate this with bathymetric lidar for reach-scale characterisation of key variables for flood modelling, leading to the following objectives:

1. Assemble multi-source remote sensing datasets of channel and flood-plain topography;
2. Develop novel, big data approaches for intelligent and automated extraction of key variables;
3. Integrate derived variables into an existing hydrodynamic model;
4. Validate the approach through application to a monitored test site environment.

Applicants should posses an MSc or BSc (First Class) or equivalent in a relevant subject area, such as Geomatics (photogrammetry/surveying/geodesy), Hydrology, Computing Science, Physical Geography, etc. Graduates in Mathematics, Physics and Engineering with an interest in applying their skills to environmental science are also welcome. This project requires strong numerical and analytical skills, and relevant programming experience (e.g. Python, Java, R, Matlab, C++, etc.). Applicants must be comfortable in undertaking fieldwork, including UAV surveys (full training will be provided).

Funding Notes

This 3.5 year studentship is funded under the James Hutton Institute/University Joint PhD programme, in this case with Newcastle University, and the student will spend a portion of time at both institutions. Applicants should have a first-class honours degree in a relevant subject or a 2.1 honours degree plus Masters (or equivalent). Shortlisted candidates will be interviewed in Jan/Feb 2018, and the studentship will commence September 2018. A more detailed plan of the studentship is available to candidates upon application. Funding is available for UK and EU applicants. International applicants who possess suitable self-funding are also invited to apply.
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