Transit from Ontario to Denver via Las Vegas Probe for pollution outflow on the way to Las Vegas NO2 concentrations across Las Vegas metropolitan area.

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Transit from Ontario to Denver via Las Vegas Probe for pollution outflow on the way to Las Vegas NO2 concentrations across Las Vegas metropolitan area for satellite validation Fly circle or box around Moapa Power Plant NO2 NE of Las Vega Moapa PP: , Measure air quality over the Grand Canyon NP Pt 12 – P19 upwind and downwind of the San Juan and Four Corners Power Plants Adjust points according to wind direction and terrain (if possible add transects further downwind) Four Corners PP: 36.39, San Juan PP: , Fly upwind and downwind of forest fires if possible, adjust direction and spacing of transects according to wind direction and speed A)South Fork, NM forest fire plume (near , ) B) Medano, CO forest fire plume (near , )

Transects downwind of Fire plumes for wind from SW Adjust as indicated by WP3 Measurements Transect points as shown relative to fire location in km Along and across wind vector: