A Value Assessment of an Atmospheric Composition Capability on the NOAA Next-Generation Geostationary and Extended Orbits (GEO-XO) Missions

This document assesses the value of atmospheric composition products from the next generation of the National Oceanic and Atmospheric Administration (NOAA) operational geostationary and extended orbits (GEO-XO) satellites to be launched between 2030 and 2050. Atmospheric Composition (AC) encompasses the vertical and geographical distribution of all gas phase trace chemical constituents (i.e., <<1% by number or mass of the atmosphere) and aerosols. AC plays pivotal roles in air quality, weather, and climate, both directly and via complex Earth System feedbacks. Further, as the month-long dust storms, record-breaking wildfires, and COVID-19 pandemic related mobility restrictions in 2020 have made startlingly evident, AC can dramatically affect life and property.