1. Scripps Institution of Oceanography University of California, San Diego La Jolla California USA
2. Now at Department of Chemistry University of California Berkeley California USA
3. Atmospheric Science and Global Change Division Pacific Northwest National Laboratory Richland Washington USA
4. Los Alamos National Laboratory Los Alamos New Mexico USA
5. Joint Institute for the Study of the Atmosphere and Oceans University of Washington Seattle Washington USA
6. Pacific Marine Environmental Laboratory NOAA Seattle Washington USA