Dr Thomas Ryan-Keogh’s main research focus is on understanding variable chlorophyll fluorescence under nutrient limitation and applying this to biogeochemical cycling of the oceans. During his PhD he participated on a number of multi-disciplinary research cruises to the high latitude North Atlantic and the Ross Sea. Dr Ryan-Keogh obtained his PhD in oceanography at the National Oceanography Centre, Southampton/University of Southampton.

As part of his postdoc at SOCCO within CSIR his research will focus on understanding the seasonal cycle of phytoplankton physiology across the sub-Antarctic zone, developing new tools and methods to examine the spatial and temporal variability of phytoplankton photophysiology for application to remote sensing data and biogeochemical model development.