Doughnut Talk Roster 2025
The scheduled Doughnut Talks are held in the Oceanography Dept Seminar Room every alternate Wednesday at 1pm. All are welcomed.
| Student Name | Degree | Title | Supervisor | Date of Talk |
| Amelia Deary | PhD | Early phytoplankton community development in the Southern Ocean Marginal Ice Zone | Sarah Fawcett | 09-Apr-25 |
| Nomvula Mpongose | PhD | Extreme heat characteristics in the East coastal regions of the Southern Hemisphere | Chris Reason | 09-Apr-25 |
| Lynette van Schalkwyk | Postdoc | Weather stations, balloons and drylines: A weather campaign in the Kalahari during peak Summer | Ross Blamey, Chris Reason | 23-Apr-25 |
| Matthew Carr | PhD | Investigating Indian Ocean upwelling through modelling experiments | Chris Reason | 23-Apr-25 |
| Humeshni Pillay | PhD | Hyperspectral retrieval algorithms for optically complex waterbodies in the Western Cape | Natasha Karenyi, Marie Smith, Lisl Lain | 07-May-25 |
| Amber Sneddon | MSc | Atmospheric river climatology for the South Atlantic basin using image processing-based methodologies | Ross Blamey, Chris Reason | 07-May-25 |
| Christiaan van Niekerk | PhD | Tracing sources of atmospheric nitrogen using stable isotope | Katye Altieri | 21-May-25 |
| Philile Mvula | PhD | Postponed | Juliet Hermes | 21-May-25 |
| Keagan Petersen | MSc | Lagrangian biogeochemical modelling in the Southern Benguela | Marcello Vichi | 21-May-25 |
| Wanjiru Thoithi | PhD | Understanding the impacts of multi-year La Niña events on rainfall over southeastern Asia |
Chris Reason | 04-Jun-25 |
| Amanda Masilela | MSc | A Langrangian analysis of moisture transport over the Berg-Olifants and Breede-Gouritz catchments | Moagabo Ragoasha, Sarah Roffe, Ramontsheng Rapolaki | 04-Jun-25 |
| Lillina Ruiters | MSc | Seasonal variability of phytoplankton photophysiology in the Southern Ocean | Marcello Vichi | 04-Jun-25 |
| Clea Welch | MSc | A deep dive into marine heatwaves: Insights from the Southwest Indian Ocean | Juliet Hermes, Janet Sprintall, Tammy Morris, Neil Malan | 18-Jun-25 |
| Emma Fahraeus | PhD | Fine scale structures in the Southwest Indian Ocean: High resolution physics and acoustics coupling | Sarah Fawcett | 18-Jun-25 |
| Nikita Qosholo | MSc | Submesoscale fronts in the surface boundary layer of the Cape Basin | Moagabo Ragoasha | 02-Jul-25 |
| Tshikana Rasehlomi | PhD | Oceanic ladders: Vertical migration as a driver of Cape anchovy and sardine population connectivity | Marjolaine Krug, Babatunde Abiodun | 02-Jul-25 |
| Joshua Mirkin | PhD | An investigation of subsurface oxygen variability in the eastern South Atlantic | Sarah Fawcett | 02-Jul-25 |
| Mishka Rawatlal | PhD | Aerosols in the marine atmosphere | Katye Altieri | 16-Jul-25 |
| Nomkwezane Kobo | PhD | Exploring the drivers of extreme rainfall events in Southern African using MPAS | Babatunde Abiodun | 16-Jul-25 |
| Nokuthula Nkadimeng | MSc | Isabelle Ansorge, Issufo Halo, Tarron Lamont | 30-Jul-25 | |
| Wayne de Jager | Postdoc | A swath-based framework to disentangle the dynamic and thermodynamic contributions to sub-daily sea-ice concentration variability | Marcello Vichi | 30-Jul-25 |
| Lebogang Makgati | PhD | Chris Reason | 30-Jul-25 | |
| Sheveenah Taukoor | Postdoc | Isabelle Ansorge, Babatunde Abiodun, Annette Samuelsen | 13-Aug-25 | |
| Sifiso Mpapane | MSc | Marcello Vichi | 13-Aug-25 | |
| Anele Mahlangu | MSc | Uncertainties associated with biogeochemical model complexity in the Southern Ocean | Moagabo Ragoasha, Thulwaneng Mashifane | 13-Aug-25 |
| Pelonomi Sakwe | MSc | Katye Altieri | 27-Aug-25 | |
| Magata Mangatane | PhD | Marcello Vichi | 27-Aug-25 | |
| Dayna Collins | MSc | Marcello Vichi | 27-Aug-25 | |
| Tallulah Graziani | MSc | Juliet Hermes, Moagabo Ragoasha, Mike Roberts, Steven Herbette | 10-Sep-25 | |
| Christo Whittle | PhD | Isabelle Ansorge | 10-Sep-25 | |
| Olivia Dawson | MSc | Sarah Fawcett | 10-Sep-25 | |
| Sadiyah Rawat | PhD | Sarah Fawcett, Raquel Flynn | 01-Oct-25 | |
| Shaza Qalela | MSc | A multi-proxy analysis of Bouvet Island ice cores: Insights from stable isotope composition of nitrogen and oxygen | Katye Altieri, Sarah Fawcett | 01-Oct-25 |
| Caroline Sejeng | PhD | Isabelle Ansorge, Juliet Hermes, Issufo Halo, Laura, Kerry | 15-Oct-25 | |
| Mulalo Maphugwi | PhD | Ross Blamey, Chris Reason | 15-Oct-25 | |
| Mashudu Khunwana | MSc | Moagabo Ragoasha | 15-Oct-25 | |
| Calvin Swart | MSc | Sarah Fawcett | 29-Oct-25 | |
| Sizwekazi Yapi | PhD | Sarah Fawcett | 29-Oct-25 | |
| Sarah du Preez | MSc | Tarron Lamont, Jenny Huggett, Isabelle Ansorge | 12-Nov-25 | |
| Zaine Perry | MSc | Moagabo Ragoasha, Ramontsheng Rapolaki, Sarah Roffe | 12-Nov-25 | |
| Sina Wallschuss | PhD | Nitrous oxide in the Benguela Upwelling System | Sarah Fawcett | 26-Nov-25 |
| Zara Prew | PhD | Changes in the African Seaforest over the past half- century | Sarah Fawcett, AJ Smit, Tommy Bornman | 26-Nov-25 |