Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO 80309, United States ; NOAA Earth System Research Laboratory, Chemical Science Division, 325 Broadway, Boulder, CO 80305, United States
Department of Civil and Environmental Engineering University of California, One Shields Avenue, Davis, CA 95616, United States
NOAA/Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA 98115, United States
Aerodyne Research, Inc., 45 Manning Road, Billerica, MA 01821, United States
Norwegian Institute for Air Research (NILU), P.O. Box 100, Kjeller, N-2027, Norway
University of Helsinki, Department of Physical Sciences, P.O. Box 64, Helsinki, 00014, Finland
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO 80309, United States ; NOAA Earth System Research Laboratory, Chemical Science Division, 325 Broadway, Boulder, CO 80305, United States
NOAA/Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA 98115, United States