HR: 1340h
AN: A33B-1182    [Abstracts]
TI: In situ observations of light-absorbing non-refractory aerosol
AU: * Gao, R S
EM: rushan.gao@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD6, Boulder, CO 80305,
AU: Spackman, J R
EM: ryan.spackman@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD6, Boulder, CO 80305,
AU: Spackman, J R
EM: ryan.spackman@noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, University of Colorado, Boulder, CO 80309,
AU: Schwarz, J P
EM: joshua.p.schwarz@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD6, Boulder, CO 80305,
AU: Schwarz, J P
EM: joshua.p.schwarz@noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, University of Colorado, Boulder, CO 80309,
AU: Watts, L A
EM: Laurel.A.Watts@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD6, Boulder, CO 80305,
AU: Watts, L A
EM: Laurel.A.Watts@noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, University of Colorado, Boulder, CO 80309,
AU: Thomson, D S
EM: David.S.Thomson@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD6, Boulder, CO 80305,
AU: Thomson, D S
EM: David.S.Thomson@noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, University of Colorado, Boulder, CO 80309,
AU: Fahey, D W
EM: David.W.Fahey@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD6, Boulder, CO 80305,
AU: Fahey, D W
EM: David.W.Fahey@noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, University of Colorado, Boulder, CO 80309,
AU: Holloway, J S
EM: John.S.Holloway@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD7, Boulder, CO 80305,
AU: Holloway, J S
EM: John.S.Holloway@noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, University of Colorado, Boulder, CO 80309,
AU: Peischl, J
EM: jeff.peischl@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD7, Boulder, CO 80305,
AU: Peischl, J
EM: jeff.peischl@noaa.gov
AF: Cooperative Institute for Research in Environmental Sciences, University of Colorado, University of Colorado, Boulder, CO 80309,
AU: Ryerson, T B
EM: Thomas.B.Ryerson@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD7, Boulder, CO 80305,
AU: Trainer, M
EM: michael.k.trainer@noaa.gov
AF: NOAA Earth System Research Laboratory, 325 Broadway R/CSD7, Boulder, CO 80305,
AB: Light-absorbing non-refractory aerosol particles may contribute significantly to total aerosol absorption of solar radiation and have been observed with a new method associated with the NOAA Single-Particle Soot Photometer (SP2). The SP2 was designed to measure incandescence from refractory carbon in individual particles sampled from ambient or laboratory air samples. Although light-absorbing non-refractory particles do not incandesce, they lose mass while transiting the SP2 laser beam. This loss of mass is detected by the asymmetry produced in the particle scattering signal. Air sampled on board the NOAA WP-3D research aircraft during the TexAQS/GoMACCS campaign were examined for evidence of light-absorbing non-refractory particles. These particles are found in some plumes sampled during the campaign and are compared to the abundance of refractory black carbon particles.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0365 Troposphere: composition and chemistry
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting