TEMPO Science and Applications

The first ever Geostationary Earth Orbit satellite air quality instrument over the Western Hemisphere,Tropospheric Emissions: Monitoring of Pollution (TEMPO), has been scanning North America since August2023 and providing the scientific community with hourly air quality observations. Algorithm science developedfor similar heritage instruments in Low Earth Orbit over the last two decades helped in the rapid developmentand validation of key TEMPO products, such as nitrogen dioxide, formaldehyde, aerosol layer height, totalozone, etc. Analyzing and demonstrating enhanced capabilities offered by TEMPO hourly observations restswith the scientific community and the newly formed TEMPO science team. NOAA has been conducting scientificwork with TEMPO air quality products combined with NOAA operational GOES-19 Advanced Baseline Imagerair quality products to demonstrate their value for hazards monitoring and forecasting. This presentation willshowcase how NOAA is developing capabilities to verify emissions inventories in urban areas using TEMPOnitrogen dioxide diurnal profiles, analyzing geography dependent pollutant exposure, and assessing howpollution exposures at different times of day impact human health. NOAA’s goal is to use TEMPO dataoperationally and help state and local agencies adapt to a new way of using satellite air quality data in their dayto-day decision making processes.