|
|
| |
Aircraft Support for TexAQS II Summer 2005
| Project Period: | 05/09/2005 - 08/31/2005 |
| Total Budget: | $206,791 |
| Sub-Contractors: | Tennessee Valley Authority - Ray Valente ($206,791)
|
Select Related Documents
 Adobe PDF (303 KB) Adobe PDF (2.12 MB)
The Second Texas Air Quality Study (TexAQS-II) seeks to understand emissions and processes associated with the formation and transport of ozone and regional haze in Texas, with particular emphasis on the more populated eastern half of the state, roughly from Interstate 35 eastward. The various scientists involved with TexAQS-II have a broad range of goals and objectives. The Texas Commission on Environmental Quality (TCEQ) in particular is interested in ensuring a successful field program and obtaining the necessary observational and modeling information to enable them to develop State Implementation Plans (SIPs) for the new eight-hour ozone standard and for regional haze. Accurate meteorological and photochemical modeling are essential to these goals and objectives. Real-time meteorological and photochemical modeling are required for planning of daily field program operations, and provide information on the suitability of particular cases for future modeling activities. Real-time data assimilation creates gridded analysis that can be used to initialize forecasts and provide three-dimensional wind and other information for analysis of point measurements. Trajectories generated from these model runs provide transport information in support of data analysis and tetroon and aircraft studies. Retrospective simulations allow for model improvement and increased understanding of ozone episodes and emissions. The extensive modeling of the original TexAQS 2000 field study and other ozone episodes has illustrated the shortcomings of current models and emission inventories. It also points to the conclusion that no single model is likely to reproduce every aspect of an ozone episode. The need for more extensive modeling (in space and time) is driven in part by the need to identify (and thus repair) model shortcomings, especially in view of the requirements associated with demonstrating compliance with the new 8-hour federal ozone standard. This project will not only provide needed support for TexAQS-II; it will also help to define what is best practice for modeling 8-hour ozone by testing the various elements of an appropriate modeling strategy in the context of the TexAQS II field study.
Related Categories
Below is a list of categories that this project belongs to.
|
|
| Page Updated/Reviewed: 05/24/2006 1:07 PM |
|
© 2005 - 2009 Texas Environmental Research Consortium
|
