HR: 17:45h
AN: A44B-08    [Abstracts]
TI: Combined use of an Aerosol Radiation, Microphysics, and Transport Model with Satellite, Airborne, and Ground Based Observations to Infer the Aging of Southern African Biomass Burning Aerosols
AU: * Colarco, P R
EM: colarco@essic.umd.edu
AF: Earth System Science Interdisciplinary Center, University of Maryland/NASA GSFC Code 916, 2207 CSS Building (#224) University of Maryland, College Park, MD 20742-2465 United States
AU: Matichuk, R
EM: matichuk@lasp.colorado.edu
AF: Program in Atmospheric and Oceanic Sciences, University of Colorado, Campus Box 392, Boulder, CO 80309-0392 United States
AU: Korontzi, S
EM: stef@hermes.geog.umd.edu
AF: Department of Geography, University of Maryland, 4321 Hartwick Rd. Suite 310, College Park, MD 20740 United States
AU: Torres, O
EM: torres@qhearts.gsfc.nasa.gov
AF: JCET-UMBC/NASA GSFC Code 916, Code 916 NASA GSFC, Greenbelt, MD 20771 United States
AU: Levy, R
EM: levy@climate.gsfc.nasa.gov
AF: SSAI/NASA GSFC Code 913, Code 913 NASA GSFC, Greenbelt, MD 20771 United States
AU: Welton, E J
EM: Ellsworth.J.Welton@nasa.gov
AF: NASA GSFC Code 912, Code 912 NASA GSFC, Greenbelt, MD 20771 United States
AU: Schmid, B
EM: bschmid@mail.arc.nasa.gov
AF: Bay Area Environmental Research Institute/NASA ARC, MS 245-5 NASA ARC, Moffett Field, CA 94035-1000 United States
AU: Eck, T
EM: teck@ltpmail.gsfc.nasa.gov
AF: GEST-UMBC/NASA GSFC Code 923, Code 923 NASA GSFC, Greenbelt, MD 20771 United States
AU: McGill, M
EM: Matthew.J.McGill@nasa.gov
AF: NASA GSFC Code 912, Code 912 NASA GSFC, Greenbelt, MD 20771 United States
AU: Weaver, C
EM: weaver@blueberry.gsfc.nasa.gov
AF: GEST-UMBC/NASA GSFC Code 916, Code 916 NASA GSFC, Greenbelt, MD 20771 United States
AB: We use an offline aerosol microphysics and transport model driven by assimilated meteorology to study the evolution of biomass burning aerosols during the Southern African Regional Science Initiative experiment (SAFARI 2000). We focus here on the extensive dataset of aerosol radiation measurements made during SAFARI 2000, which includes spaceborne observations from MODIS and TOMS, groundbased columnar measurements of spectral aerosol optical thickness from AERONET sun/sky photometers, and vertical profiles of aerosol extinction from groundbased MPLNET lidar, the airborne Cloud Physics Lidar, and the AATS-14 airborne sun photometer. Spatially explicit biomass burning sources for southern Africa derived from the MODIS satellite-based fire detection and burned area products are used. We summarize the model validation near source regions, presented in more detail elsewhere by Matichuk et al. We address whether the aging of the smoke aerosols during long-range transport can be detected from the MODIS and TOMS satellite radiance measurements and subsequent retrievals. We calculate the expected satellite radiance measurements from the modeled aerosol fields using a multiple-scattering radiative transfer model. Our goal is to determine an appropriate set of aerosol microphysical parameters and processes to include in the model in order to have a description of the aerosol lifecycle consistent with the near-source (sun photometer and lidar) and long-range (satellite) observations.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0365 Troposphere--composition and chemistry
DE: 0368 Troposphere--constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting