HR: 16:45h
AN: A34A-04 INVITED    [Abstracts]
TI: CCN measurements aboard the CIRPAS Twin Otter and the NOAA P3 platforms during TexAQS/GoMACCS
AU: * Athanasios, N
EM: nenes@eas.gatech.edu
AF: Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, United States
AU: * Athanasios, N
EM: nenes@eas.gatech.edu
AF: Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, United States
AU: Asa-Awuku, A A
EM: akua.asaawuku@chbe.gatech.edu
AF: Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, United States
AU: Lance, S
EM: lance@ucar.edu
AF: Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, United States
AU: Moore, R
EM: richard.moore@chbe.gatech.edu
AF: Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, United States
AU: Bahreini, R
EM: Roya.Bahreini@noaa.gov
AF: National Oceanic and Atmospheric Administration, 325 Broadway, Boulder, CO 80305, United States
AU: Brock, C A
EM: Charles.A.Brock@noaa.gov
AF: National Oceanic and Atmospheric Administration, 325 Broadway, Boulder, CO 80305, United States
AU: Flagan, R C
EM: flagan@cheme.caltech.edu
AF: Environmental Science and Engineering, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125, United States
AU: Flagan, R C
EM: flagan@cheme.caltech.edu
AF: Chemical Engineering, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125, United States
AU: Jonsson, H
EM: hjonsson@nps.edu
AF: CIRPAS, Naval Postgraduate School, Hangar 507, 3200 Imjin Road, Marina, CA 93933, United States
AU: Murphy, S
EM: murphy@caltech.edu
AF: Chemical Engineering, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125, United States
AU: Seinfeld, J H
EM: seinfeld@caltech.edu
AF: Environmental Science and Engineering, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125, United States
AU: Seinfeld, J H
EM: seinfeld@caltech.edu
AF: Chemical Engineering, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125, United States
AU: Sorooshian, A
EM: armin@catech.edu
AF: Chemical Engineering, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125, United States
AU: Varutbangkul, V
EM: tomtor@caltech.edu
AF: Chemical Engineering, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125, United States
AB: We present an overview of Cloud Condensation Nuclei (CCN) measurements for boundary layer clouds sampled over the vicinity of Houston, TX during the GoMACCS/TEXAQS campaign (August-September, 2006). Measurements were obtained aboard the NOAA P3 and the CIRPAS Twin Otter platforms, and polluted air masses in and out of cloudy regions were sampled over a total of 40 flights. Throughout this campaign, we sampled freshly emitted and ageing Houston aerosol, aerosol from the Houston ship channel and the heavily industrialized area in the vicinity. The vast range of CCN concentration, aerosol composition and aging/mixing state makes this a particularly valuable dataset for constraining uncertainties associated with prediction of CCN concentration and cloud droplet number for polluted clouds. We will focus on numerous aspects related CCN closure and growth kinetics, with the focus on improving parameterizations of aerosol-cloud interactions.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0365 Troposphere: composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting