Mission:To ensure accurate and traceable calibration of remotely-sensed atmospheric composition radiance data and validation of higher level products, for application to atmospheric composition, land, ocean, and climate research.

Mission: To ensure high quality calibration and validation of infrared and visible optical data from Earth observation satellites and validation of higher level products

Mission: To foster quantitative validation of higher-level global land products derived from remote sensing data and to relay results so they are relevant to users.

Mission: The mission of the Synthetic Aperture Radar subgroup is to foster high-quality synthetic aperture radar data from airborne and spaceborne systems through precision calibration in radiometry, phase and geometry, and validation of higher level products.