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APPLICATION OF THE MODELS-3 COMMUNITY MULTI-SCALE AIR QUALITY (CMAQ) MODEL SYSTEM TO SOS/NASHVILLE 1999
Citation:
Pleim, J E., F S. Binkowski, R L. Dennis, J M. Godowitch, T L. Otte, T E. Pierce, S J. Roselle, K L. Schere, J Young, AND G L. Gipson. APPLICATION OF THE MODELS-3 COMMUNITY MULTI-SCALE AIR QUALITY (CMAQ) MODEL SYSTEM TO SOS/NASHVILLE 1999. Presented at 12th Joint Conference on the Applications of Air Pollution Meteorology with the Air & Waste Management Association, Norfolk, VA, May 20-24, 2002.
Impact/Purpose:
The objectives of this task are to continuously develop and improve the Community Multiscale Air Quality (CMAQ) modeling system, which is the science implementation within the Models-3 system framework for air quality simulation. CMAQ is a multiscale and multi-pollutant chemistry-transport model (CTM) that includes the necessary critical science process modules for atmospheric transport, deposition, cloud mixing, emissions, gas- and aqueous-phase chemical transformation processes, and aerosol dynamics and chemistry. It relies on Models-3 I/O API to support machine independent data access and maintains simple interfaces among science processor modules to provide a high-level of modularity.
Description:
The Models-3 Community Multi-scale Air Quality (CMAQ) model, first released by the USEPA in 1999 (Byun and Ching. 1999), continues to be developed and evaluated. The principal components of the CMAQ system include a comprehensive emission processor known as the Sparse Matrix Operator Kernel for Emissions (SMOKE), a Chemical Transport Model (CTM), and a meteorology model, the Penn State/NCAR Mesoscale Model (MM5). Evaluation of the CMAQ modeling system includes simulation of a series of air quality field studies such as NARSTO and SOS. This paper describes many upgrades to the next release (June 2002) of the CMAQ system and our initial model application to the SOS/Nashville 1999 field experiment.
This paper has been reviewed in accordance with the U.S. Environmental Protection Agency's peer and administrative review policies and approged for presentation and publication.