I am a Senior Lecturer at the Department of Mathematics and Global Systems Institute at the University of Exeter.

I am interested in understanding the large-scale dynamics of the atmosphere and oceans of Earth (and sometimes other planets too). I use a combination of idealised models, comprehensive general circulation models, and observational data. My current particular interests include:

  • Polar vortex dynamics on Earth, Mars, and Titan
  • Jet stream and Hadley cell variability
  • Stratospheric ozone depletion
  • Southern Ocean-atmosphere interactions

If you are interested in doing a PhD or postdoc in these or similar areas then please get in touch.


I have recently started in Exeter (in June 2020), following a PhD in Atmospheric, Oceanic, and Planetary Physics at Oxford, almost four years as a postdoc in the Department of Earth and Planetary Sciences at Johns Hopkins University, and 18 months as a research fellow in the School of Geographical Sciences at the University of Bristol (where I still have an honorary affiliation).

For all the gory details, you can download my CV (pdf) here.

Contact details:


Dr William J. M. Seviour
Department of Mathematics
Harrison Building
Streatham Campus
University of Exeter
North Park Road
Exeter EX4 4QF
United Kingdom