Short Tutorial on using NASA’s GIOVANNI web tool to create regional-scale time series

Tong, Daniel; Shen, Suhung; Wei, Jennifer

Satellite observations can provide useful information on long term changes in air quality. One of the most widely used satellite products is tropospheric NO₂, which has been retrieved from several different satellite sensors. We provide here a quick tutorial on using Giovanni to analyze a trend in tropospheric NO₂ data, from the NASA Ozone Monitoring Instrument (OMI) sensor, over a region of interest.


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This technical guidance document was produced by the NASA HAQAST Tiger Team "Supporting the Use of Satellite Data in State Implementation Plans (SIPs)" led by Professor Arlene Fiore. For additional resources see:; Professor Fiore's website: