Dr Nicolette Chang obtained a PhD in Physical Oceanography from the University of Cape Town in 2009. In her thesis, she studied the circulation and oceanic structure on the South African continental shelf, the Agulhas Bank and the interaction of the Agulhas Current with the Agulhas Bank using the ocean model, ROMS (Regional Ocean Modeling System).
As part of SOCCO, Dr Chang uses numerical ocean models to investigate the Southern Ocean. The ocean model configuration will provide a platform to study the oceanic processes of the surface mixed layer that influences carbon exchange between the ocean and atmosphere as well as to explore the important spatial scales involved in this exchange. She has performed initial Southern Ocean configuration tests for Southern Ocean mixed-layer physics using ROMS.
She is currently working towards configuring and evaluating a fully coupled physical-biogeochemical ocean model together with collaborators to address these exchanges and spatial scales. This will use the supercomputing facilities provided by the CSIR’s Centre for High Performance Computing.
Martins, R.S., Roberts, M.J., Chang, N., Verley, P., Moloney C.L., Vidal, E.A.G. 2010. Effect of yolk utilization on the specific gravity of chokka squid (Loligo reynaudii) paralarvae: implications for dispersal on the Agulhas Bank, South Africa. ICES Journal of Marine Science, 67, pp. 1323-1335.
Blanke, B., Penven, P., Roy, C., Chang, N., and Kokoszka, F. 2009. Ocean variability over the Agulhas Bank and its dynamical connection with the Southern Benguela upwelling system, Journal of Geophysical Research, doi:10.1029/2009JC005358.
Chang, N. 2009. Numerical ocean model study of the Agulhas Bank and the Cool Ridge, Ph.D. thesis, 182 pp., Univ. of Cape Town, Cape Town, South Africa.
Penven, P., Chang, N., and Shillington, F.A. 2006. Modelling the Agulhas Current using SAfE (Southern Africa Experiment). European Geosciences Union General Assembly 2006 , Vienna, Austria, April 2-7, 2006.
Dr Nicolette Chang