1. Department of Atmospheric and Oceanic SciencesPrinceton University Princeton NJ USA
2. Now at Massachusetts Institute of Technology and Woods Hole Oceanographic Institution Joint Program in Oceanography Cambridge MA USA
3. Now at Research School of Earth SciencesAustralian National University Canberra ACT Australia
4. NOAA/Geophysical Fluid Dynamics Laboratory Princeton NJ USA
5. Los Alamos National Laboratory Los Alamos NM USA
6. Now at School of OceanographyUniversity of Washington Seattle WA USA