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TexAQS 2006 TOPAZ Lidar data

August 31 - Final Data


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Flight #17
Takeoff: 12:06 CDT
Total flight time: 6.1 hours

This flight coincided with the highest surface measurements of ozone recorded during August in Houston. Originally, a flight plan was developed based on forecasts that the Houston plume would be drifting to the southwest. After takeoff, profiler winds from LaPorte indicated that the flow was more easterly. As a result, the flight plan was modified to a grid pattern extending to the west. During flight, an axis of high ozone, exceeding 150 ppb, was observed extending from just south of Houston toward the northeast. The plume was embedded in high background ozone extending over the entire region. Ozone was well mixed to a depth of more than 1500 meters. In addition to the primary plume, other plumes were observed south of Houston, presumably from the Texas City petrochemical complex. A comparison with the 13:00 ozone sonde from the University of Houston was obtained during the flight.

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Ozone Cross-section
Ozone cross-section - August 31
download ICARTT format data (ict file)
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Aerosol Cross-section
Aerosol cross-section - August 31
download ICARTT format data (ict file)
download simple ASCII data (txt file)
Ozone Map
Ozone map - August 31
Mixed Layer Height Map
Mixed layer height map - August 31
download ICARTT format data (ict file)
download simple ASCII data (txt file)