I hold a joint position at NIWA and the University of Auckland in the Joint Graduate School for Coastal and Marine Science.

- Postdoctoral Experience (1991-1996): NSERC International Postdoctoral Research Fellow at the University of British Columbia, Canada, in the Environmental Fluid Mechanics Group in the Department of Civil Engineering working with the then Assoc. Prof. Gregory Lawrence
- Doctoral Thesis (1992): The Effect of a Surface Shear Stress on a Stratified Fluid (Supervisor, Professor Jörg Imberger). A study of the upwelling response of a stratified lake under the action of wind. Department of Civil and Environmental Engineering and Centre for Water Research, University of Western Australia
- Bachelors Degree (1987): Bachelor of Engineering - First Class Honours; Department of Civil Engineering, University of Adelaide, South Australia

Committee/Professional groups/Services:
- 2015-today: Council NZ Association of Scientists (co-President 2015-2018).
- 2022-today Editorial Board NZ Science Review
- 2012-2017: Board of AWATEA – NZ Wave and Tidal Energy Assoc. (chair 2013-2016)
- 2013- today: Associate Editor, New Zealand Journal Marine Freshwater Research
- 2009- 2018: Associate Editor, Limnology and Oceanography

Areas of Expertise:
- Oceanic turbulent stratified boundary-layer flows
- River plumes
- Sea ice-ocean interaction
- Entity-flow interaction (biophysics, flow around obstacles)
- Fluid mechanics associated with industry such as aquaculture, energy, mining etc.
- Outreach

Media Keywords:
oceans, climate, marine energy, Antarctic oceans and ice, science communication