Materials in this section are organized into the following broad topic areas:
Particular matter (PM), or aerosol, is the general term used for a mixture of solid particles and liquid droplets found in the atmosphere. Natural (dust and volcanic ash) and anthropogenic aerosols (biomass burning smoke, industrial pollution) influence cloud properties, alter the radiation budget of the earth-atmosphere system, affect atmospheric circulation patterns and cause changes in surface temperature and precipitation, and monitoring them is important.
Among NASA’s A-Train roster of satellite platforms there are two carrying instruments which measure trace gases appropriate for air quality studies and monitoring: Aqua and Aura. Among the most useful instruments on-board these two platforms are AIRS, OMI, and TES.