Satellite method provides insight into ozone-NOx-VOCs sensitivity for different locations

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Both are represented in the study by a major gas of each type, the VOC formaldehyde and NO 2 , that are measureable from space by the Dutch-Finnish Ozone Monitoring Instrument aboard NASA’s Aura satellite, launched in 2004. Ozone pollution near Earth’s surface is one of the main ingredients of summertime smog. It is also not directly measurable from space due to the abundance of ozone higher in the atmosphere, which obscures measurements of surface ozone.

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DISCOVER-AQ project to begin flights to enhance measurement of ground-level air-quality from space

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Studies suggest that discrepancies of as much as 30 to 50% exist between estimates of ground nitrogen dioxide inferred from the Ozone Monitoring Instrument (OMI), an instrument on NASA’s Aura satellite launched in 2004, and measurements from ground-based instruments. DISCOVER-AQ instrumentation deployment strategy. Source: NASA. Click to enlarge.

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