HR: 0830h
AN: A11E-0028    [PDF]
TI: An Integrated Analysis of Asian Outflow Events Using Particle Elements Measurements in Support of ACE-Asia
AU: * Woo, J
EM: woojh21@cgrer.uiowa.edu
AF: University of Iowa, Center for Global and Regional Environmental Research, Iowa Advanvced Technology Laboratories, University of Iowa, Iowa City, IA 52242 United States
AU: Carmichael, G R
EM: gcarmich@icaen.uiowa.edu
AF: University of Iowa, Center for Global and Regional Environmental Research, Iowa Advanvced Technology Laboratories, University of Iowa, Iowa City, IA 52242 United States
AU: Streets, D G
EM: dstreets@anl.gov
AF: Argonne National Laboratory, Decision and Information Sciences Division, Argonne National Laboratory, DIS/900, 9700 South Cass Ave, Argonne, IL 60439 United States
AU: Tang, Y
EM: ytang@cgrer.uiowa.edu
AF: University of Iowa, Center for Global and Regional Environmental Research, Iowa Advanvced Technology Laboratories, University of Iowa, Iowa City, IA 52242 United States
AU: Pan, L
EM: ytang@cgrer.uiowa.edu
AF: University of Iowa, Center for Global and Regional Environmental Research, Iowa Advanvced Technology Laboratories, University of Iowa, Iowa City, IA 52242 United States
AU: Thongboonchoo, N
EM: nthongbo@cgrer.uiowa.edu
AF: University of Iowa, Center for Global and Regional Environmental Research, Iowa Advanvced Technology Laboratories, University of Iowa, Iowa City, IA 52242 United States
AB: Recent large international field campaigns like ACE-Asia provide detailed information on the composition of Asian aerosol. The complex nature (e.g. amount, composition, size, and shape) of aerosol cannot be easily assessed using comprehensive chemical transport models, as particulate emissions are highly uncertain. In this study we combine observations of the chemical composition of aerosols with detailed information on emissions to assess the relative importance of various source categories. Specifically the elemental composition of aerosol emissions from 5 different source categories - Fossil fuel combustion, Biofuel combustion, Biomass Burning, Wind-blown dust, and Marine aerosol - are developed for Asia using elemental source profiles from previous research and sectoral information (Ace-Asia and Trace-P Modeling and Emission Support System; ACESS). The developed source composition together with the C130 observations obtained during ACE-Asia are used to quantify the source contributions for selected outflow events using the Chemical Mass Balance Model. Five source categories out of 200 source profiles using 15 elements out of 35 aerosol components are utilized in this receptor modeling. The spatially/temporally resolved emissions estimates, satellite images, 3D chemical model, and back-trajectory analysis are used to characterize the aerosol in the Asian outflow. We will also discuss what additional measurements and information are needed to better determine the contribution of major source categories.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0322 Constituent sources and sinks
DE: 0330 Geochemical cycles
DE: 0345 Pollution--urban and regional (0305)
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting