Department of Physics


The sea ice group is headed by Pat Langhorne. Please contact Pat for general enquiries. Current and past research projects are listed on the Research page.



The sea ice group on the University of Otago Polar Environments Research Theme 2011 cross country ski trip.
From left: Alex, Stefan, Greg, Inga, and Takenobu.
(2010 sea ice group photo ;

2008 sea ice group photo)

Current Members
Assoc Prof Pat Langhorne Associate Professor
Dr Inga Smith Research Fellow
Dr Greg Leonard Senior Lecturer
Dr Shona Mackie Research Fellow
Pat Wongpan PhD student (coming soon)
Recent Members
Prof Cecilia Bitz Visiting scientist 
2013/2014 (Fulbright US Scholar Award Recipient)
Research collaboration topic: Why is Antarctic sea ice expanding?
Pat Wongpan MSc 2013 Voronoi dynamics simulation of platelet sea ice growth with diffusive heat and mass transfer
Ken Hughes MSc 2013 Propagation of an ice shelf water plume beneath sea ice in McMurdo Sound, Antarctica
Dr Alex Gough PhD 2012 Sea ice near an ice shelf
Dr Craig Purdie PhD 2012 Winter sea ice growth in McMurdo Sound, Antarctica
Dr Natalie Robinson PhD 2012 Circulation, mixing and interactions in the ocean near the Ross Ice Shelf
Assoc Prof Takenobu Toyota Visiting scientist 
2011 (NZ/JSPS Senior Scientist Exchange Recipient)
Study on wave-sea ice interaction in the marginal sea ice zone and its relation with the floe size distribution
Dr Andy Mahoney Postdoc 
Winter sea ice growth processes
Dr Ed Kempema Visiting scientist 
Dr Chris Petrich PostDoc 2005/06
PhD 2005
Fluid dynamics simulations of sea ice formation (examples). Experiments on refreezing cracks in sea ice.
Dr Greg Leonard PostDoc 2002-05 Sea ice and platelet ice formation in McMurdo Sound and their correlation with oceanographic conditions.
Dr Inga Smith PhD 2002 Platelet ice in McMurdo Sound, Antarctica.
Dr Martin Gribble PhD 2002 Cyclic and creep properties of sea ice.
Dr Paul Bond PhD 2001 Optical characteristics of saline ice.
David Dempsey MSc 2008 Observations and modelling of platelet ice in McMurdo Sound, Antarctica
Daisuke Yamagishi MSc 2008 Experimental study of phase change in rapidly growing sea ice.
Nicole Albrecht MSc 2006 Internal gravity waves in McMurdo Sound, Antarctica.
Marc Müller-Stoffels MSc 2006 Preferred crystal orientations in freshwater ice sheets. (pdf)
Ben Tuckey MSc 2002 Brine convection in sea ice.
Heike Merkel Visitor 
Lisa Hahn-Woernle MSc/International Internship student 
Thermodynamic modelling of platelet ice crystal development.