Fires, Asian, and Stratospheric Transport - Las Vegas Ozone Study (FAST-LVOS)
TOPAZ data
MicroDop data
Lidar instruments
  FAST-LVOS logo


June 18, 2017

< Previous Day | Archive Calendar | Next Day >

Daily Summary:

Sunday, June 18
TOPAZ data were recorded from 09:24 - 19:08 PDT. Extremely hot (max. of 46 C at the lidar site). Shallow Cumulus over the nearby mountain ranges in the afternoon. Light winds that followed the diurnal flow pattern. Overnight, clean marine air had been advected into southern Nevada, which decreased ozone concentrations to below 40 ppbv in the lower troposphere. TOPAZ observed a layer with moderate aerosol concentrations and 45-50 ppbv ozone between 3 and 5 km AGL. Local production caused a late increase of surface ozone, which peaked at 53 ppbv around 1800 PDT.

Select image to view full resolution

Ozone - June 18
View/Download the Ozone data ASCII file

Aerosol Backscatter
Aerosol Backscatter - June 18
View/Download the Aerosol Backscatter data ASCII file

in situ surface data
in situ surface data - June 18