1. Atmospheric and Oceanic Sciences Program; Princeton University; Princeton; New Jersey; USA
2. Duke University; Beaufort; North Carolina; USA
3. Laboratoire des Sciences du Climat et de l'Environnement; Unite Mixte de Recherche CEA-CNRS, LSCE, CEA Saclay; Gif-sur-Yvette; France
4. Department of Marine Chemistry and Geochemistry; Woods Hole Oceanographic Institution; Woods Hole; Massachusetts; USA
5. CSIRO Atmospheric Research; Aspendale; Victoria; Australia
6. Climate and Global Dynamics; National Center for Atmospheric Research; Boulder; Colorado; USA
7. CSIRO Division of Marine Research; Hobart, Tasmania; Australia
8. Max-Planck-Institut für Meteorologie; Hamburg; Germany
9. Institute of Physics, St. Petersburg State University; St. Petersburg; Russia
10. Met Office, Hadley Centre for Climate Prediction and Research; Bracknell; UK
11. Geophysical Fluid Dynamics Laboratory; Princeton; New Jersey; USA