The Atmospheric Emitted Radiance Interferometer (AERI) is a ground-based instrument that measures radiant energy from the Earth’s atmosphere.

The AERI's observations have broad spectral content, and sufficient spectral resolution to discriminate among gaseous emitters (such as carbon dioxide and water vapor) and suspended matter (such as aerosols, water droplets, and ice crystals). These uplooking surface observations can be used to obtain vertical profiles of tropospheric temperature and water vapor, as well as measurements of trace gases (such as ozone, carbon monoxide, methane) and downwelling infrared spectral signatures of clouds and aerosols.

Visit the WebMADS site to view data from AERIs (including the one on the SPARC). For more information about SSEC's involvement with the AERI, please see the AERI homepage.

An Atmospheric Emitted Radiance Interferometer (AERI) operating during the Plains Elevated Convection At Night (PECAN) field campaign in 2015. Credit: Jon Gero, SSEC.