HR: 17:45h
AN: A14B-08    [Abstracts]
TI: Aerosol Modeling with the MODIS AOD assimilation during ICARTT
AU: * Kittaka, C
EM: fn.c.kittaka@larc.nasa.gov
AF: Science Applications International Corporation (SAIC), c/o NASA Langley Research Center MS 401B, Hampton, VA 23681 United States
AU: Pierce, R B
EM: r.b.pierce@larc.nasa.gov
AF: NASA Langley Research Center, NASA Langley Research Center MS 401B, Hampton, VA 23681 United States
AU: Szykman, J
EM: j.j.szykman@larc.nasa.gov
AF: US EPA, c/o NASA Langley Research Center MS 401A, Hampton, VA 23681 United States
AU: Al-Saadi, J
EM: j.a.al-saadi@larc.nasa.gov
AF: NASA Langley Research Center, NASA Langley Research Center MS 401B, Hampton, VA 23681 United States
AU: Schaack, T
EM: todd.schaack@ssec.wisc.edu
AF: University of Wisconsin - Madison, Space Science and Engineering Center 1225 W. Dayton Street, Madison, WI 53706 United States
AU: Tripoli, G
EM: tripoli@aos.wisc.edu
AF: University of Wisconsin - Madison, Department of Atmospheric and Oceanic Sciences 1225 W. Dayton Street, Madison, WI 53706 United States
AU: Chu, A
EM: achu@climate.gsfc.nasa.gov
AF: University of Maryland - Baltimore County, Joint Center for Earth Systems Technology University of Maryland, Baltimore County, MD 21250 United States
AU: Avery, M
EM: m.a.avery@larc.nasa.gov
AF: NASA Langley Research Center, NASA Langley Research Center MS 401B, Hampton, VA 23681 United States
AU: Fairlie, D
EM: t.d.fairlie@larc.nasa.gov
AF: NASA Langley Research Center, NASA Langley Research Center MS 401B, Hampton, VA 23681 United States
AU: Browell, E
EM: e.v.browell@larc.nasa.gov
AF: NASA Langley Research Center, NASA Langley Research Center MS 401B, Hampton, VA 23681 United States
AB: This presents a model study focusing on an aerosol event observed over the eastern US in summer 2004 during the ICARTT field campaign. The aerosol event coincided with record-breaking fires over Alaska and Yukon. A suite of measurements conducted during ICARTT successfully captured the smoke plume being transported across the North America. We investigate this event using the Regional Air Quality Modeling System (RAQMS) with aerosol modules incorporated from the GOCART model. The RAQMS aerosol model is now combined with the MODIS aerosol optical depth (AOD) assimilation to improve the model performance especially on large-scale features such as smoke plume from intense fires. The simulation results are first compared with the in-situ and remote sensing measurements obtained during ICARTT. This study shows the significant influence of the smoke plume on the boundary layer air quality, which was further deteriorated with regional sulfate pollution over the southeastern states. In contrast, the northeastern states are shown to have experienced elevated sulfate aerosol and a limited influence of the smoke plume.
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
DE: 0368 Troposphere: constituent transport and chemistry
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005