3 Acknowledgments

We would like to thank Antarctica New Zealand staff based in Christchurch and Scott Base for their dedicated and innovative support with our project, in particular E. Barnes, I. Miller, D. Peterson, Neil Gilbert, and P. Woodgate, and at Scott Base S.Trotter, K. Rigarlsford, J. Burton, D. Mahon, D. Miller, G. McElroy. We would like to thank ScanTec, especially Matt Watson for excellent ground penetrating radar surveys. We would like to thank Kenn Borek Twin Otter crews for their professional, practical, and friendly approach and attitude. We are indebt to Helicopter NZ staff, in particular Rob McPhearson, for his . We would like to thank the National Isotope Centre, GNS Science, Ms Valerie Claymore, the Geochemical Laboratory, Victoria University, Prof. Joel Baker, and the Climate Change Institute, University of Maine, Prof. Paul Mayewski for ice core analyses. We are indebt to the Alfred Wegener Institute for lending us the shallow firn drilling system. This project is funded by Victoria University of Wellington, GNS Science, and Foundation for Research, Science, and Technology (Grant No. VICX0704 and CO5X0202).