1. Pickart, R. S., Spall, M. A., Ribergaard, M. H., Moore, G. W. K. & Milliff, R. F. Nature 424, 152–156 (2003).
2. Dickson, R. R., Curry, R. & Yashayaev, I. Phil. Trans. R. Soc. Lond. A (in the press).
3. Verduin, J. & Quadfasel, D. in European Sub-Polar Ocean Prog. II, Final Sci. Rep. (ed. Jansen, E.) (Univ. Bergen, 1999).
4. Blindheim, J. et al. Deep-Sea Res. I 47, 655–680 (2000).
5. Hansen, B., Turrell, W. R. & Østerhus, S. Nature 411, 927–930 (2001).