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| Air Quality Research |
| Title: | Role of Modeling Assumptions in the Houston Mid-Course Review and Impacts on the Sensitivity of 1-hour/8-hour Ozone to Emissions Reductions |
| Project Period: | 06/30/2004 - 02/28/2005 |
| Total Budget: | $577,153 |
| Sub-Contractors: | University of Houston - Daewon Byun ($125,000)
University of North Carolina - Harvey Jeffries ($152,153)
University of Texas at Austin - David Allen ($300,000)
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The TCEQ has developed completely new ozone modeling databases for use in the current Houston-Galveston area (HGA) Mid Course Review of the State Implementation Plan (SIP) for ozone with concentrations averaged over 1-hour. This modeling reflects major new insights into the ozone problem in the HGA that emerged from the TexAQS 2000 field study. The technical foundation of new SIP modeling has been comprehensively updated and improved from the previous 1993 ozone modeling, with improvements to emission inventories, meteorological modeling and air quality modeling developed by the TCEQ staff and numerous contractors. The new modeling databases have now been applied in the proposed Mid Course Review SIP and it is an appropriate time to investigate, for the 1-hour ozone attainment, issues such as uncertainty, robustness, and relationships to new 8-hour emerging requirements. This project examines Biogenic Inventory Assumptions, HRVOC Inventory Adjustments and Modeling Assumptions, Grid Resolution Assumptions, August 31 and August 26-27 Performance Problems, and Chemical Mechanism Uncertainties.
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| Page Updated/Reviewed: 05/23/2006 4:17 PM |
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