1. Department of Atmospheric Science; Colorado State University; Fort Collins Colorado USA
2. Now at Department of Civil, Environmental, and Geodetic Engineering; Ohio State University; Columbus Ohio USA
3. Now at Droplet Measurement Technologies, Inc.; Boulder Colorado USA
4. Now at Department of Environmental Science; Hankuk University of Foreign Studies; Seoul South Korea
5. Centre for Atmospheric Science; University of Manchester; Manchester UK
6. Division of Chemistry and Chemical Engineering; California Institute of Technology; Pasadena California USA
7. Now at Cytec Canada; Niagara Falls Ontario Canada
8. Department of Chemistry; University of Montana; Missoula Montana USA
9. Fire Sciences Laboratory; United States Forest Service; Missoula Montana USA