Ph.D. Student, Co-Supervised by Lex Van Eijk, University of Nantes and Jacques Piazzolo, University of Toulon
Study of atmospheric aerosols in a South African coastal region
Atmospheric aerosols have an impact on climate change, as well as on the performance of electro-optic sensors being used in the maritime environment. A better knowledge of the aerosol properties in the False Bay region could provide a reference for people studying climate change and could assist in improving the performance of electro-optic sensors. We collected aerosol data from two particle measurement systems that operated from April 2015 to January 2016 in False Bay. With the data analysis I aim to determine and characterize the aerosol distributions and chemical compositions and compare it with similar measurements done in other locations around the world.
M.Sc. Student, Co-Supervised by Pedro Monteiro, CSIR SOCCO
Seasonal and intra-seasonal variability in the ocean flux of carbon dioxide in the sub-Antarctic zone of South Africa
My study involves determining the variability in the ocean flux of carbon dioxide by investigating the accuracy and precision of glider-based measurements in comparison to ship-based measurements of key carbonate system variables. The carbonate system variables that I will focus on include total dissolved inorganic carbon (DIC) derived from pH and pCO2, direct DIC obtained by coulometric titration, direct total alkalinity measurements obtained by potentiometric titration and salinity-temperature derived total alkalinity.
I obtained a Bachelor of Science degree at the University of Cape Town (UCT) in 2016, majoring in Ocean and Atmospheric Science and Marine Biology. It was during this period that I became increasingly passionate about environmental sciences, specifically where they relate to the small and large scale interactions between human activities and ecosystem functioning. I am currently studying towards a Bachelor of Science (Honours) degree in Oceanography, where I will be using a simple steady state box model to investigate how various ocean biogeochemical factors impact the flux of ammonia/um from the surface ocean to the remote marine atmosphere and how this compares to regions with anthropogenic influence.
M.Sc. Student (Honours 2017)
I am currently studying towards my Bachelor of Science (Honours) degree in Oceanography. My project is quantifying key species in the surface ocean-lower atmosphere nitrogen cycle. I am collecting atmospheric samples from the Cape Point Global Atmosphere Watch Station (GAW) tower, that receives clean air from the Southern Ocean. I am also collecting atmospheric and surface ocean samples on two winter cruises in the Southern Ocean and South Atlantic Ocean.
Benita is pursuing her M.Sc. while working full time at the Institute for Maritime Technology. The primary objective of this work is to investigate the potential of deploying a Helikite in order to characterise the lower atmosphere in False Bay. Focus is placed on the methodology to correctly measure air profiles over the ocean up to a maximum height of 200 m. The second objective is to evaluate the micrometeorology theory used in a micrometeorological model for the marine surface layer with False Bay data. This is achieved by using experimental data to run the model. The model output can then be compared to the experimental profile measured as part of objective one. The micrometeorological model we assess is based on the standard bulk meteorological observations of wind speed, temperature, humidity and the turbulent fluxes of momentum, heat and water vapour.