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Determination of Radical Sources during SHARP
| Project Period: | 08/01/2008 - 08/31/2009 |
| Total Budget: | $70,400 |
| Sub-Contractors: | Battelle
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The contractor will support the Spring/Summer Houston Atmospheric Radical Precursor (SHARP) field campaign, by providing a Time-Resolve Aerosol Collector (TRAC), Sunset OCEC analyzer, Lasair particle collector, and two Metcon spectral radiometers of J(NO2) and J(HCHO) or J(HONO). This project will provide measurements relevant to the determination of free radical sources and their precursors and relating these measurements to ozone and particulate matter episodes during the campaign. The episodes of high ozone and particulates are accompanied by fast changing trace gas and particulate compositions, and mixing states in the latter case. These trace gases include the targeted ozone precursors NO2, HCHO, or HONO. The TRAC data permits examination of the growth of secondary aerosols, the nucleation of new particles, and determination of emission sources of specific pollutants in relation to other simultaneous measurements of trace gases including ozone, photolysis rates of key ozone precursors, particle number concentration, and size distribution as well as mass loadings of organic carbon and elemental carbon. Such data set and their analysis could further elucidate temporal and spatial variations of ozone, particulate matter, and their precursors in Houston. Understanding and predicting these trace gases and aerosol evolution are an important part of any comprehensive modeling of the ozone/particle events in Houston; and we will seek to incorporate our observations to be compared against or to constrain, the modeling efforts of other groups involved in the study.
Related Categories
Below is a list of categories that this project belongs to.
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| Page Updated/Reviewed: 08/11/2008 11:42 AM |
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