Precise delineation of river networks is important for flood modelling and risk management, water resource management, and many other applications. Traditionally, approaches based on digital elevation models (DEMs) are usually used to extract river networks. However, DEM-based methods are not able to physically depict flow directions and differentiate between the perennial and intermittent flows, leading to inaccurate extraction of river networks. Having the advantage of continuous global coverage at high temporal and spatial resolution, satellite imagery can be used to monitor hydrological changes over space and time, and provides an alternative means for delineation of river networks. However, satellite imagery extracts channelized elements from local morphologies without considering overall hydrological connectivity, which may create broken and inconsistent river segments.
To effectively address the challenges of the existing approaches, this PhD project aims to integrate DEM-based methods with satellite imagery to develop a new generation of algorithm to delineate high-precision and connected river networks at the global scale. The new river network extraction algorithm will take advantages of the latest high-performance hydrodynamic modelling, cloud-computing and machine learning technologies to produce a new global river network product to support different geoscience applications, creating substantial academic and practical impact.
Applicants will normally need to hold, or expect to gain, at least a 2:1 degree (or equivalent) in Engineering (e.g. Civil Engineering, Mechanical Engineering), Geography or Earth Science. A Master’s degree and/or experience in a related area associated with the research will be an advantage.
Deadline for application is 10th January 2020
- Complete a CENTA studentship application form in Word format (available from http://www.centa.org.uk/apply/ or here).
- All applications should be made online at http://www.lboro.ac.uk/study/apply/research/. Under programme name, select “Civil and Building Engineering”. During the online application process, upload the CENTA studentship application form as a supporting document.
Please quote CENTA20-LU7 when completing your online application.
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