HR: 1330h
AN: A22C-1087    [PDF]
TI: In-situ aircraft and remotely sensed observations of pyrogenic plumes over southern Africa biomass burning regions during SAFARI 2000
AU: * Stein, D C
EM: dcs5v@virginia.edu
AF: University of Virginia Department of Environmental Sciences, Clark Hall, PO Box 400123, Charlottesville, VA 22904-4123 United States
AU: Swap, R J
EM: rjs8g@virginia.edu
AF: University of Virginia Department of Environmental Sciences, Clark Hall, PO Box 400123, Charlottesville, VA 22904-4123 United States
AU: Richardson, D L
EM: dlr2n@virginia.edu
AF: University of Virginia Department of Environmental Sciences, Clark Hall, PO Box 400123, Charlottesville, VA 22904-4123 United States
AU: Richardson, D L
EM: dlr2n@virginia.edu
AF: School of Geography, Archaeology and Environmental Studies University of the Witwatersrand, PO Wits 2050, Johannesburg, 2050 South Africa
AU: Piketh, S J
EM: stuart@crg.bpb.wits.ac.za
AF: School of Geography, Archaeology and Environmental Studies University of the Witwatersrand, PO Wits 2050, Johannesburg, 2050 South Africa
AU: Macko, S A
EM: sam8f@virginia.edu
AF: University of Virginia Department of Environmental Sciences, Clark Hall, PO Box 400123, Charlottesville, VA 22904-4123 United States
AB: As a part of the SAFARI 2000 validation effort, a series of research flights were coordinated with Terra and TOMS satellite overpasses. Many flights were conducted in regions profoundly affected by biomass burning plumes. This paper explores the relationship between remotely sensed aerosol products from Terra and in-situ aircraft observations made within these pyrogenically impacted areas. In-situ aircraft point data were scaled up to the size of MODIS data pixels. Several correlations were found between aircraft measurements of trace gases and aerosols and the MODIS derived aerosol measurements. Results of comparisons with MISR and TOMS data are also presented. Column averages obtained during aircraft vertical profiles as well as averages stratified by altitude are presented and illustrate the importance of understanding the vertical structure of the atmosphere for proper data interpretation. As a result, the in-situ aircraft measurements and the remotely-sensed data are linked to meteorological parameters including the location of absolutely stable layers and synoptic conditions in an effort to better understand atmospheric controls on these plumes. Overall these comparisons provide a more robust understanding of column aerosol measurements and the factors that control the vertical distribution of pyrogenic products.
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0315 Biosphere/atmosphere interactions
DE: 0345 Pollution--urban and regional (0305)
DE: 0365 Troposphere--composition and chemistry
DE: 0368 Troposphere--constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting