This is the home page of Prof. E. R. (Ted) Johnson Mathematics, UCL. The best way to contact me is by email:-
The Mathematics Fax number is +44-(0)-207-383-5519.
Getting to the Mathematics Department: Maps of, and Public Transport to, UCL and Mathematics
The Mathematics Department is on the corner of Gower Place and Gordon Street, marked as UCLU, Building 25. My room is 805, on the eighth floor.
Entry on the UCL research portal,
Institutional Research Information System (IRIS).
Entry on ResearcherID,
Entry on Google Scholar,
Entry on the Mathematics Genealogy Project, Mathematics Genealogy Project.
Publication List, Publications List
Download Full Text of Publications. Open Access from UCL Discovery. Full Text Publications
Paper introducing the Surface QuasiGeostrophic Equations, the SQG equations with topography:- Topographically Bound Vortices (1978)
Finite Depth Stratified Flow over Topography on a Beta-plane:- Finite Depth Stratified Flow over Topography on a Beta-plane (1979)
Shelf waves: Simple, fast, accurate MATLAB programs for calculating barotropic shelf waves above arbitrary rectilinear topography bordering an open ocean. The method is described in the note
G. Kaoullas & E.R.Johnson, "Fast accurate computation of shelf waves for arbitrary depth profiles", Continental Shelf Research, 2010and the MATLAB "SHELFWAVES" program can be downloaded from MATLAB Central as SHELFWAVES.
Fast, accurate MATLAB programs for calculating baroclinic coastal-trapped waves in arbitrarily stratified flow above arbitrary rectilinear topography bordering an open ocean.
The method is described in the paper
E.R. Johnson & J.T. Rodney, Spectral methods for coastal-trapped waves, Continental Shelf Research, 2011, 31 (14) pp. 1481-1489 doi:10.1016/j.csr.2011.06.009and the MATLAB "Spectral methods for CTWs" programs can be downloaded from MATLAB Central as Spectral methods for CTWs.
The Geophysical Fluid Dynamics group has EPSRC studentships and Teaching Assistantships available each year. Early applications (December/January) are advised as these tend to be allocated, on a competitive basis across all of Applied Mathematics, early in the New Year. Students join an active GFD group with interests ranging from eddy dynamics and circulation in the oceans through to vortex breakdown and sudden stratospheric warmings.
UCL offers a wide-ranging programme of training in transferable skills to all graduate students and extra support to encourage students to attend UK and overseas conferences. Information on the level of stipend and details of other benefits can be found on the research council websites:- NERC and EPSRC. Applicants should have, or expect to gain, a good honours degree (first/upper second). Candidates must establish a relevant connection with the UK to meet Research Council eligibility criteria for funding of an RCUK award. In order to be considered you need to fill in an application form. Please see UCL Graduate Application, where you can download the forms and guidelines immediately. After you fill in this form, please send the original to the Graduate School.
I am also offering a PhD project, on the transient loading of structures under impact of finite-amplitude waves, jointly with Professor Ian Eames of UCL Mechanical Engineering, as part of the London NERC Doctoral Training Partnership. Details about the DTP and the application processs can be found here.
A movie from the OCCAM project showing the generation of eddies in the Agulhas Current.
Surface height field.