HR: 1340h
AN: A53A-0156    [Abstracts]
TI: Single-Particle Black Carbon Aerosol Verticle Profiles From the Boundary Layer to the Lower Stratosphere
AU: * Schwarz, J P
EM: joshua.p.schwarz@noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway R/AL6, Boulder, CO 80305 United States
AU: * Schwarz, J P
EM: joshua.p.schwarz@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309 United States
AU: Gao, R S
EM: gao@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway R/AL6, Boulder, CO 80305 United States
AU: Fahey, D W
EM: david.w.fahey@noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway R/AL6, Boulder, CO 80305 United States
AU: Fahey, D W
EM: david.w.fahey@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309 United States
AU: Laurel, W A
EM: Laurel.A.Watts@noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway R/AL6, Boulder, CO 80305 United States
AU: Laurel, W A
EM: Laurel.A.Watts@noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309 United States
AU: Thomson, D S
EM: jschwarz@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway R/AL6, Boulder, CO 80305 United States
AU: Thomson, D S
EM: jschwarz@al.noaa.gov
AF: CIRES, University of Colorado, Boulder, CO 80309 United States
AU: Kok, G L
EM: GLKoK@Dropletmeasurement.com
AF: Droplet Measurement Technologies, Inc., 5710 Flatiron Parkway, Boulder, CO 80301 United States
AU: Baumgardner, D
EM: darrel@servidor.unam.mx
AF: Universidad Nacional Autonoma de Mexico, Centro de Ciencias de la Atmosfera, Mexico City, 04510 Mexico
AU: Wilson, J C
EM: jwilson@du.edu
AF: University of Denver, Department of Physics, Denver, CO 80208 United States
AU: Lopez, J
EM: jlopez@mail.arc.nasa.gov
AF: NASA Ames Research Center, Moffett Field, Moffet Field, CA 94035 United States
AU: Aikin, K
EM: aikin@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway R/AL6, Boulder, CO 80305 United States
AU: Jost, H
EM: hjost@mail.arc.nasa.gov
AF: NASA Ames Research Center, Moffett Field, Moffet Field, CA 94035 United States
AU: Thompson, T L
EM: Thomas.L.Thompson@noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway R/AL6, Boulder, CO 80305 United States
AU: Reeves, J M
EM: JReeves@du.edu
AF: University of Denver, Department of Physics, Denver, CO 80208 United States
AU: Lowenstein, M
EM: Max.Lowenstein-1@nasa.gov
AF: NASA Ames Research Center, Moffett Field, Moffet Field, CA 94035 United States
AB: A single-particle soot photometer (SP2) was flown on a NASA WB-57F high-altitude research aircraft in November 2004 from Houston, TX. The SP2 uses laser-induced incandescence to directly measure the mass of individual black-carbon (BC) particles in the mass range of ~0.3-300 fg. Scattered light is used to size non-absorbing aerosols in the range of ~150 - 700 nm diameter. Data from two mid-latitude flights has been used to generate size distributions and profiles of both aerosol types from the boundary layer to the lower stratosphere. Results for scattering aerosol concentrations are in good agreement with typical particle spectrometer measurements in the same region. Mass mixing ratios of BC between 5 and 18.7 km were roughly an order of magnitude lower than typical values as reported with wire impactor measurements and as predicted by two global BC models. The impact of this discrepancy on estimates of direct radiative forcing of BC aerosol will also be discussed.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0365 Troposphere: composition and chemistry
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005