Principal Investigator (PI): Julienne Stroeve, NASA's Goddard Space Flight Center

The Atmospheric Composition Processing System (ACPS) is a measurement-based processing system that has evolved from the existing multi mission-oriented Science Data Processing Systems (SDPS).

It extends services previously available to members of the science teams for the Total Ozone Mapping Spectrometer (TOMS), Ozone Monitoring Instrument (OMI) and the Suomi National Polar-orbiting Partnership (Suomi NPP) Ozone Mapping and Profiler Suite (OMPS) Product Evaluation and Test Element (PEATE), providing support to all members of the atmospheric composition community.

It will coordinate access to data from a widely distributed set of sources and provide the capability to process those data to generate Level 2 and 3 data. Community scientists will have access to current publicly released operational and research processing algorithms, and will be able to run modified forms of these algorithms or will be able to develop entirely new algorithms to run either locally or on the ACPS itself.