Space agencies across the globe are planning for a network of geostationary satellites, complimenting the polar-orbiting satellites, for air quality and atmospheric composition capabilities. These include Geostationary Environmental Monitoring System (GEMS, in orbit), Tropospheric Emissions: Monitoring of Pollution (TEMPO, 2022 launch), Sentinel-4 Ultraviolet Visible Near infrared (UVN, 2023 launch), and Atmospheric Composition Spectrometer (ACX, 2030s launch). Current polar-orbiting satellite sensors include Tropospheric Monitoring Instrument (TROPOMI, in orbit), Environmental Monitoring Imager (EMI, in orbit), and Ozone Mapping and Profiler Suite (OMPS, in orbit), and the future Sentinel-5/JPSS/GaoFen5 satellite series.

The product suite from these UV-VIS-NIR sensors are air quality relevant trace gases (ozone, nitrogen dioxide, formaldehyde, glyoxal, and sulfur dioxide) and aerosols (optical depth, absorbing index, layer height, and single scattering albedo) on hourly-to-daily time scales for environmental monitoring and human health impact studies. We invite presentations on algorithms, product validation, and applications including air quality monitoring and forecasting.