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Topographically generated internal gravity waves in oceans


School of Science and Engineering

About the Project

Ocean’s density typically increases with depth due to a decrease in temperature and increase in the salt concentration. One of the most important consequences of ocean’s density stratification is internal gravity waves (IGW), which are often produced when the stably stratified ocean water is driven back and forth over submarine topography by tidal currents. IGWs are very efficient in transporting momentum and energy over large distances, and help in mixing of nutrients, oxygen and heat in the oceans. Turbulence and mixing via IGWs play an important role in regulating global oceanic circulation, and are one of the major factors in the climate-forecast models. The aim of this project is to understand the generation of internal tides from and around the continental slopes, its propagation, and dissipation at the continental shelves. Extensive studies in the last decade have revealed that internal tide generation is heavily dependent on the magnitude of the slope of the continental shelves. However my preliminary work has revealed that the geometric details of the continental slope (specifically, curvature) are crucial in deciding the strength of the internal tidal beams. The goal of this project would be specifically to understand which topographic features play crucial role in (i) internal wave generation, and (ii) deciding the width of internal wave beams.

For informal enquiries about the project, contact Dr Anirban Guha,
For general enquiries about the University of Dundee, contact


QUALIFICATIONS
Applicants must have obtained, or expect to obtain, a first or 2.1 UK honours degree, or equivalent for degrees obtained outside the UK in a relevant discipline.

English language requirement: IELTS (Academic) score must be at least 6.5 (with not less than 5.5 in each of the four components). Other, equivalent qualifications will be accepted. Full details of the University’s English language requirements are available online: http://www.dundee.ac.uk/guides/english-language-requirements.


APPLICATION PROCESS

Step 1: Email Dr Anirban Guha () to (1) send a copy of your CV and (2) discuss your potential application and any practicalities (e.g. suitable start date).

Step 2: After discussion with Dr Guha, formal applications can be made via UCAS Postgraduate. When applying, please follow the instructions below:

Candidates must apply for the Doctor of Philosophy (PhD) degree in either Civil Engineering or Mathematics:
- Civil Engineering: https://digital.ucas.com/coursedisplay/courses/edafb73c-a8af-9853-1420-d9899c96a8bb?academicYearId=2020
- Mathematics: https://digital.ucas.com/coursedisplay/courses/c1f40893-a92e-d5d9-e320-c079d444d740?academicYearId=2020

Select the start date and study mode (full-time/part-time) agreed with the lead supervisor.

In the ‘provider questions’ section of the application form:
- Write the project title and ‘FindAPhD.com’ in the ‘if your application is in response to an advertisement’ box;
- Write the lead supervisor’s name and give brief details of your previous contact with them in the ‘previous contact with the University of Dundee’ box.

In the ‘personal statement’ section of the application form, outline your suitability for the project selected.

Funding Notes

There is no funding attached to this project. The successful applicant will be expected to provide the funding for tuition fees and living expenses, via external sponsorship or self-funding.

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