Augmenting air quality data with satellite images
CAMS delivers results from air quality modeling on a regular basis. Several EU countries gather a total of around 2,000 NO2 measurements on the ground and report them to the European Environment Agency (EEA). This data was downloaded from the EEA’s Air Quality e-Reporting system.
The most important source of information used to estimate annual NO2 is CAMS modeling results. They are available for the whole of Europe and provide a good initial idea about how good or bad the air quality is.
“After gathering this data, we needed to understand the environment surrounding the sensors to offset satellite measurements,” explains Wouter Labeeuw, data scientist at delaware. “We observed that more trees in an area will result in lower annual NO2 measurements. In high-traffic areas, however, NO2 increases as a byproduct of fuel combustion. Satellite imagery is an ideal solution because it offers a perfect view of the environment.”