1. Department of Physics; University of Otago; Dunedin New Zealand
2. Department of the Environment and Energy; Australian Antarctic Division; Kingston Tasmania Australia
3. Antarctic Climate and Ecosystems Cooperative Research Centre; University of Tasmania; Hobart Tasmania Australia
4. National School of Surveying; University of Otago; Dunedin New Zealand
5. CSIRO Oceans and Atmosphere, Castray Esplanade; Hobart Tasmania Australia
6. Callaghan Innovation; Lower Hutt Wellington New Zealand