1. Cooperative
Institute for Research in Environmental Sciences (CIRES), University of Colorado Boulder, 216 UCB, Boulder, Colorado 80309, United States
2. NOAA Earth System Research Laboratory (ESRL) Chemical Sciences Division, 325 Broadway, Boulder, Colorado 80305, United States
3. Science and Technology
Corporation, Hampton, Virginia 23666, United States
4. Department
of Civil and Environmental Engineering, Princeton University, E209A Olden Street, Princeton, New Jersey 08544, United States
5. Aerodyne Research,
Inc., 45 Manning Road, Billerica, Massachusetts 01821-3976, United States