Extended Abstract (16K)J5.11
Integration of the Biogenic Emissions Inventory System (BEIS3) into the Community Multiscale Air Quality modeling system
Thomas Pierce, NOAA/ERL/ARL, Research Triangle Park, NC; and C. Geron, G. Pouliot, E. Kinnee, and J. Vukovich
Version 3 of the Biogenic Emissions Inventory System (BEIS3) has been implemented as part of an upgrade to EPA's Community Multiscale Air Quality (CMAQ) modeling system. BEIS3 contains several improvements over BEIS2: (1) a 1-km vegetation database for the contiguous United States, which resolves canopy coverage by tree species; (2) normalized emission factors for 34 chemical species, including 14 monoterpene compounds; (3) a soil nitric oxide emissions algorithm that accounts for soil moisture, crop canopy coverage, and fertilizer activity; and, (4) speciation factors for the CBIV, RADM2, and SAPRC99 chemical mechanisms. This paper will compare volatile organic compound (VOC) and NO emission estimates from BEIS2 and BEIS3 for a seven-day period during July 1999. In addition, the paper will provide preliminary comparisons of modeled concentrations for several photochemically-important compounds, including ozone, formaldehyde, and isoprene resulting from simulations with CMAQ.
Supplementary URL: http://www.epa.gov/asmdnerl/biogen.html
Joint Session 5, Atmospheric Chemistry (Joint with the Fourth Symp. Urban Environment, 12th Joint Conf. on the Applications of Air Pollution Meteorology with A&WMA, and 25th Conf. Agricultural & Forest Meterology; Cosponsored by the AMS STAC Committee on Atmospheric Chemistry)
Thursday, 23 May 2002, 1:30 PM-4:59 PM
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