1. Scripps Institution of OceanographyUniversity of CaliforniaSan DiegoCAUSA
2. Department of Applied Physics and Applied MathematicsColumbia UniversityNew YorkNYUSA
3. Lamont Doherty Earth ObservatoryColumbia UniversityNew YorkNYUSA
4. College of EarthOcean, and Atmospheric SciencesOregon State UniversityCorvallisORUSA