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Deep learning of ground magnetometer networks for space physics (Advert Reference: RDF22/EE/MPEE/BENTLEY)


   Faculty of Engineering and Environment

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  Dr Sarah Bentley  No more applications being accepted  Competition Funded PhD Project (Students Worldwide)

About the Project

We seek a student to develop deep learning models of magnetic field changes and investigate processes in Earth’s magnetosphere. There is currently an exciting growth of machine learning methods in space physics; this research will inform future research directions and space weather prediction techniques.

Background:

Earth’s magnetosphere is the region of near-Earth space where processes are dominated by Earth’s magnetic field. This highly dynamic region responds to the solar wind, a constant buffeting flow of plasma from the Sun. Large numbers of ground and space observations mean that space physics is an area ripe for deep learning, as we need to (1) understand all the complex physics (2) predict space weather conditions to protect ground and space infrastructure and (3) understand and adapt deep learning techniques to datasets with some extreme properties.

Graph neural networks (GNNs) perform deep learning on data represented as networks or graphs (i.e. a series of nodes and edges) rather than a 3D grid. Considering space physics data as coming from a network more naturally represents how we sample the rapidly changing magnetosphere.

Project:

In this project you would train graph neural networks across ground magnetometer chains. These are magnetic field observations across a wide area of the Earth, sampling a large portion of the magnetosphere. We can use these to map global magnetospheric processes. Graph neural networks can be used to predict or classify nodes (i.e. each magnetometer station), edges (i.e. spatial or magnetic relation between stations) or the entire graph (i.e. a snapshot of the magnetic field configuration). There are many physics questions that could be explored with this model, or you could alternatively focus your attention on adapting the theory behind deep learning techniques to space weather applications. There are several research directions that could significantly improve our understanding and so the project focus will be determined by student interests.

Supervisory Team:

Dr Sarah Bentley and Prof Clare Watt use a variety of methods to represent and understand space physics processes. The Solar and Space Physics group is in Maths and Physics and is growing rapidly. E-mail: [Email Address Removed] and [Email Address Removed]).

Training opportunities:

In addition to regular supervisor meetings, students are encouraged to participate in group activities, including our seminar series with national and international experts. We offer Masters-level modules to provide any necessary subject-specific knowledge or skills, and you are encouraged to attend national summer schools and apply to competitive international summer schools. We will help you choose conferences and workshops to discuss your results with the scientific community.

The Principal Supervisor for this project is Dr Sarah Bentley.

Eligibility and How to Apply:

Please note eligibility requirement:

  • Academic excellence of the proposed student i.e. 2:1 (or equivalent GPA from non-UK universities [preference for 1st class honours]); or a Masters (preference for Merit or above); or APEL evidence of substantial practitioner achievement.
  • Appropriate IELTS score, if required.
  • Applicants cannot apply for this funding if currently engaged in Doctoral study at Northumbria or elsewhere or if they have previously been awarded a PhD.

This project would particularly suit either a mathematics/computer science student with an interest in space physics, or a student with a physics background and an interest in deep learning. A numerate background and some physics knowledge are essential. Prior knowledge of programming or deep learning is desirable.

For further details of how to apply, entry requirements and the application form, see

https://www.northumbria.ac.uk/research/postgraduate-research-degrees/how-to-apply/ 

Please note: Applications that do not include a research proposal of approximately 1,000 words (not a copy of the advert), or that do not include the advert reference (e.g. RDF22/…) will not be considered.

Deadline for applications: 18 February 2022

Start Date: 1 October 2022

Northumbria University takes pride in, and values, the quality and diversity of our staff and students. We welcome applications from all members of the community.


Funding Notes

Each studentship supports a full stipend, paid for three years at RCUK rates (for 2021/22 full-time study this is £15,609 per year) and full tuition fees. UK and international (including EU) candidates may apply.
Studentships are available for applicants who wish to study on a part-time basis over 5 years (0.6 FTE, stipend £9,365 per year and full tuition fees) in combination with work or personal responsibilities.
Please also read the full funding notes which include advice for international and part-time applicants.

References

Constraining the Location of the Outer Boundary of Earth’s Outer Radiation Belt, Bloch, T., Watt, C., Owens, M., Thompson, R., Agiwal, O. (2021) In: Earth and Space Science
Pro-L* - A Probabilistic L* mapping tool for ground observations, Thompson, R., Morley, S., Watt, C., Bentley, S., Williams, P. (2021) In: Space Weather
Random Forest Model of Ultralow-Frequency Magnetospheric Wave Power, Bentley, S. N., Stout, J. R., Bloch, T. E., & Watt, C. E. J. (2020) In: Earth and Space Science
Capturing uncertainty in magnetospheric ultralow frequency wave models, Bentley, S. N., Watt, C. E. J., Rae, J., Owens, M. J., Murphy, K., Lockwood, M., & Sandhu, J. K. (2019) In: Space Weather
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