1. Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, USA.
2. Research Institute for Global Change, Yokohama, Japan.
3. National Center for Atmospheric Research, Boulder, CO, USA.
4. School of Engineering and Applied Science, Harvard University, Cambridge, MA, USA.
5. National Oceanic and Atmospheric Administration, Boulder, CO, USA.
6. Institute of Marine Science, University of Alaska, Fairbanks, Fairbanks, AK, USA.
7. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.