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