PhD Studentship – Exploring Saturn’s Polar Hexagon Using Numerical Models
University of Exeter
Exeter, United Kingdom
This STFC‑funded PhD studentship invites applicants passionate about planetary science and atmospheric dynamics to investigate one of the most intriguing atmospheric features in our solar system: the persistent hexagonal jet stream encircling Saturn’s north pole. The project is rooted in fundamental questions about how this striking geometric structure forms, persists, and interacts with the surrounding atmosphere. Current theories propose differing mechanisms — from standing Rossby waves tapping energy from underlying jets to alternating energy exchange between the hexagon and jet stream. Through a blend of numerical simulations of the shallow water equations and state‑of‑the‑art global climate modelling using tools such as the Isca framework, this research will probe these possibilities and advance understanding of planetary fluid dynamics.
As the research unfolds, there is scope to broaden focus toward comparative studies of polar regions on giant planets like Jupiter and Saturn, exploring how equatorial jet streams transition to complex polar turbulence and vortex structures. The project is designed to deepen knowledge of atmospheric fluid dynamics across planetary environments, and students will gain experience in high‑performance computing, atmospheric data analysis, and collaborative scientific research. The successful candidate will join a thriving research group at Exeter with opportunities to attend international conferences and participate in collaborative projects within and beyond the institution.
Eligibility Criteria
Applicants should hold, or expect to obtain, an upper‑second class honours degree (or international equivalent) in mathematics, physics, atmospheric science, planetary science, or a closely related discipline. Enthusiasm for computational modelling and theoretical fluid dynamics will be advantageous.
Required Expertise, Skills
The ideal candidate will demonstrate strong quantitative and analytical skills, a foundation in numerical methods or computational science, and an eagerness to engage with interdisciplinary research. Familiarity with fluid dynamics, dynamical systems, and programming for scientific computing will support success in this project.
Salary Details
This studentship covers full UK and international tuition fees along with an annual tax‑free maintenance stipend of at least £21,805 per year.
Application Deadline
The closing date for applications is 6 March 2026.