Researchers in SRI's Center for Geospace Studies examine the fundamental processes governing the upper atmosphere and space to understand, for instance, how changes in the atmosphere affect the environment and weather. With support from the National Science Foundation (NSF), SRI has developed the Advanced Modular Incoherent Scatter Radar (AMISR), a state-of-the-art system that collects critical data for studying global climate trends.
In cooperation with the U.S. National Science Foundation and Denmark's Meteorological Institute, Center researchers also study the polar upper atmosphere at the SRI-managed Sondrestrom Upper Atmospheric Research Facility in Kangerlussuaq, Greenland.
In 2011, SRI was selected by the NSF to manage, operate, and maintain the Arecibo Observatory in Puerto Rico. Preeminent for its research in astronomy, planetary studies, and space and atmospheric sciences, the observatory is the world's largest, most sensitive single-dish radio telescope.
SRI also participates in missions dedicated to space weather and atmospheric research. Recent work includes the launch of SRI’s Radio Aurora Explorer CubeSat on a Minotaur-IV rocket as part of a space test by the Department of Defense.
In SRI's Molecular Physics Laboratory, researchers model the mesosphere and upper stratosphere to predict concentrations of hydroxide, ozone, and hydrogen oxide that are discordant with concentrations estimated from satellite observations.