Acknowledgements

Excellent support from all officers and crews of vessels involved in KAPEX is greatly appreciated. These are, in alphabetical order, SA KUSWAG I, SA KUSWAG V, RV Seward Johnson and RV Polarstern. Other participants of KAPEX, Chris Duncombe Rae, Dave Fratantoni, Silvia Garzoli, Claudia Schmid and Phil Richardson provided indispensable support and valuable scientific discussions throughout the project. Essential technical and scientific contributions were made by I. Ansorge, S. Becker, R. Berger, P. Bouchard, D. Carlsen, J. Fontaine, S. Fontana, H. Hunt, J. Kemp, M. Nielsen and C. Wooding. Support from the National Science Foundation, USA, the Foundation for Research Development, RSA , the Ministerium für Bildung, Wissenschaft, Forschung und Technologie, Germany, the Alexander-von-Humboldt Foundation, Germany, and the Alfred Wegener Institute for Polar and Marine Research, Germany is gratefully acknowledged. Barron recieved support for this work from the Oceanographer of the Navy via the Space and Naval Warfare Systems Command PMW155 under PE 0603207M.