Cv · Isabelle Giddy

Positions

Current

Senior Researcher Southern Ocean Carbon-Climate Observatory (SOCCO), CSIR, South Africa

Previously

VR International Postdoctoral Fellow University of Gothenburg, with affiliation at the University of Bergen & NASA Ames

Education

2018–2023

Ph.D. in Physical Oceanography University of Gothenburg & University of Cape Town

2013–2014

M.Sc. in Physical Oceanography University of Cape Town

2008–2011

B.Sc. (Hons) in Physical Oceanography and Marine Ecology University of Cape Town

Publications

2026
Southern Ocean summer warming is regulated by storm-driven mixing du Plessis, M.D., Nicholson, S.A., Giddy, I., Monteiro, P.M.S., Prend, C.J., Swart, S. Nature Geoscience · doi:10.1038/s41561-025-01857-3
2026
Waves Explain Observed Similarity Scaling of Turbulence Dissipation in the Southern Ocean Giddy, I., Whitt, D., Fer, I., Swart, S., Breivik, Ø., Nicholson, S.A. Journal of Physical Oceanography · doi:10.1175/JPO-D-25-0076.1
2026
Wind-triggered Antarctic sea-ice decline preconditioned by thinning Winter Water Spira, T., du Plessis, M., Haumann, F.A., Giddy, I., Narayanan, A., Silvano, A., Swart, S. Nature Climate Change · doi:10.1038/s41558-026-02601-4
2024
The Observed Spatiotemporal Variability of Antarctic Winter Water Spira, T., Swart, S., Giddy, I., du Plessis, M. Journal of Geophysical Research: Oceans · doi:10.1029/2024JC021017
2023
Sea‐Ice Impacts Inter‐Annual Variability of Phytoplankton Bloom Characteristics and Carbon Export in the Weddell Sea Giddy, I.S., Nicholson, S., Queste, B.Y., Thomalla, S., Swart, S. Geophysical Research Letters · doi:10.1029/2023GL103695
2023
Vertical Convergence of Turbulent and Double-Diffusive Heat Flux Drives Warming and Erosion of Antarctic Winter Water in Summer Giddy, I.S., Fer, I., Swart, S., Nicholson, S.A. Journal of Physical Oceanography · doi:10.1175/JPO-D-22-0259.1
2022
The Daily‐Resolved Southern Ocean Mixed Layer: Regional Contrasts Assessed Using Glider Observations du Plessis, M.D., Swart, S., Biddle, L.C., Giddy, I.S., Monteiro, P.M.S., Reason, C.J.C., Thompson, A.F., Nicholson, S. Journal of Geophysical Research: Oceans · doi:10.1029/2021JC017760
2021
Stirring of Sea‐Ice Meltwater Enhances Submesoscale Fronts in the Southern Ocean Giddy, I., Swart, S., du Plessis, M., Thompson, A.F., Nicholson, S. Journal of Geophysical Research: Oceans · doi:10.1029/2020JC016814
2016
Inter-comparison studies between high-resolution HYCOM simulation and observational data: the South Atlantic and the Agulhas leakage system Journal of Marine Systems · doi:
2012
Drivers of non-Redfield nutrient utilization in the Atlantic sector of the Southern Ocean Giddy, I.S., Swart, S., Tagliabue, A. Geophysical Research Letters · doi:10.1029/2012gl052454

Positions

Education

Publications

Research interests