1. National Oceanic and Atmospheric Administration (NOAA) Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA 98115, USA.
2. University of California–Los Angeles, Institute of Geophysics and Planetary Physics and Department of Atmospheric and Oceanic Sciences, Los Angeles, CA 90095, USA.
3. Princeton University, Program in Atmospheric and Oceanic Science, Forrestal Campus/Sayre Hall, Princeton, NJ 08544, USA.
4. Pohang University of Science and Technology, San 31, Nam-gu, Hyoja-dong, Pohang 790-784, South Korea.
5. NOAA Atlantic Oceanographic and Meteorological Laboratory, 4301 Rickenbacker Causeway, Miami, FL 33149, USA.