1. Institute of Geophysics and Planetary Physics and Department of Atmospheric and Oceanic Sciences; University of California, Los Angeles; Los Angeles; California; USA
2. NOAA Geophysical Fluid Dynamics Laboratory; Princeton; New Jersey; USA
3. Atmospheric and Oceanic Sciences Program; Princeton University; Princeton; New Jersey; USA
4. Marine Sciences Research Center; Stony Brook University; Stony Brook; New York; USA