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| Air Quality Research |
| Title: | Enhancement of Trajectory Model |
| Project Period: | 10/15/2003 - 03/31/2004 |
| Total Budget: | $83,843 |
| Sub-Contractors: | University of Houston - Daewon Byun ($83,843)
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Trajectory models are often used to establish source-receptor relationships of air pollutants. The tool allows the Texas Commission for Environmental Quality (TCEQ) to target ozone control strategies more efficiently by locating sources of emissions that most likely cause high ozone problems in the Houston-Galveston area (HGA). The University of Houston (UH), with the help of NOAA Air Resources Laboratory (ARL), has adapted the ARL’s HYSPLIT model to provide a web-based trajectory analysis tool.
This project consists of enhancements of the UH trajectory model so that it can ingest local meteorological data from the Continuous Air Monitoring Stations (CAMS) to build local-scale backward trajectories. The entire UH-HYSPLIT tool allows backward and forward trajectories can be built from any wind fields. The real-time trajectory analysis tool can also make use of the real-time CAMS data to produce a quick and more accurate trajectory when combined with meteorological model output. This trajectory tool could be used to identify the sources along the trajectory paths to study if there are upsets or other emissions events that might have contributed to the rapid development of high ozone concentrations.
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| Page Updated/Reviewed: 05/24/2006 11:40 AM |
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