88th Annual Meeting (20-24 January 2008)

Monday, 21 January 2008
The impact of residual layer ozone on surface ozone levels in Houston, Texas during TexAQS II
Exhibit Hall B (Ernest N. Morial Convention Center)
Bonne J. Ford, Valparaiso University, Valparaiso, IN; and G. Morris, E. Thompson, B. Rappenglueck, B. Lefer, D. W. Byun, X. Li, R. Perna, R. Boudreaux, B. McEvoy-Day, L. Pedemonte, and A. Chow
Poster PDF (396.0 kB)
As part of the Texas Air Quality Study (TexAQS) II (2005 – 2006), ozonesondes were launched from the campus of Rice University and the University of Houston providing profiles of ozone, temperature, humidity, pressure, wind speed, and wind direction. Most launches occurred in early afternoon to provide measurements during the peak of the surface ozone diurnal pollution cycle. When ozone pollution was forecast to exceed Environmental Protection Agency air quality levels, however, additional sondes were launched just after dawn to capture the residual layer containing ozone from the previous day. This study examines the impact of the residual layer ozone on afternoon ozone concentrations using data from the twelve occasions during TexAQS II on which ozonesondes were launched multiple times.

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