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Las Vegas Ozone Study TOPAZ Data

June 26, 2013


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Daily Summary:

June 26. Wednesday. Third day of very low O3 and CO. Clear, calm, and warm with 75F at Angel Peak and 107F in Henderson. A few scattered FWC in the afternoon. Lidar data was collected from 1054 to 1604 PDT. The preliminary TOPAZ curtain plot again shows very low ozone presumed to originate from the marine boundary layer. The in situ measurements were 32/90 ppbv (O3/CO) at 0950 PDT, increasing to 44/100 at 1208 PDT and decreasing to 30/80 at 1305 PDT. The valley monitors also reported very low values again.

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Ozone Cross-section
Ozone Cross-section - June 26