See Earth Observing System Data and Information System.

EOS Data and Information System

EOSDIS is the Earth Observing System Data and Information System. At present, EOSDIS manages data from NASA's Earth science research satellites and field measurement programs, providing data archival, distribution, and information management services. EOSDIS commands and controls satellites and instruments, and generates useful products from orbital observations. EOSDIS also generates data sets by assimilating satellite and in situ observations into global climate models.