Dr Catherine (Cat) Vreugdenhil

Career

  • 2017-Present: Postdoctoral Research Associate, University of Cambridge
  • 2013-2017: Doctor of Philosophy, Australian National University
  • 2009-2012: Bachelor of Science (Advanced) (Honours), Australian National University

Research

My research interests are ice-ocean interactions, rotating and stratified flows, and ocean circulation and mixing. 

The melting of ice shelves has important implications for ocean circulation and sea-level rise. I use high-resolution numerical simulations to model the melting of ice shelves by resolving all but the smallest scales of turbulence. This research leads into improving the representation of ice shelf dynamics in global ocean and climate models. 

I am also interested in transport by deep convection in the ocean. Turbulent convection occurs on small scales and must be parameterised in global ocean models. Examining the interactions between small-scale turbulence and geostrophic flow contributes to improving our understanding of ocean dynamics. 

I am a member of the Atmosphere-Ocean Dynamics research group in DAMTP.

Selected Publications

  • Vreugdenhil, Gayen and Griffiths, Transport by deep convection in basin-scale geostrophic circulation: turbulence-resolving simulations, Journal of Fluid Mechanics, 865, 681-719, 2019.
  • Vreugdenhil and Taylor, Large-eddy simulations of stratified plane Couette flow using the anisotropic minimum-dissipation model, Physics of Fluids 30 (8), 085104, 2018.
  • Vreugdenhil, Griffiths and Gayen, Geostrophic and chimney regimes in rotating horizontal convection with imposed heat flux, Journal of Fluid Mechanics, 823, 57-99, 2017.
  • Vreugdenhil, Gayen and Griffiths, Mixing and dissipation in a geostrophic buoyancy‐driven circulation, Journal of Geophysical Research: Oceans, 121 (8), 6076-6091, 2016.
  • Vreugdenhil, Hogg, Griffiths and Hughes, Adjustment of the Meridional Overturning Circulation and Its Dependence on Depth of Mixing, Journal of Physical Oceanography, 46 (3), 731-747, 2016.