The Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E) is a mission instrument launched aboard NASA's Aqua Satellite on 4 May 2002. The Aqua mission provides a multi-disciplinary study of the Earth's atmospheric, oceanic, cryospheric, and land processes and their relationship to global change. With six instruments aboard, the Aqua Satellite travels in a polar, sun-synchronous orbit.

The National Snow and Ice Data Center (NSIDC) archives and distributes daily, weekly, and monthly Level-1A, -2, and -3 data from AMSR-E. NSIDC also serves as a portal for AMSR-E Validation Data, which document the accuracy and precision of AMSR-E observations and their derived products.

Antarctic 25 km brightness temperatures, 23H GHz, 23 February 2004
Image derived from AMSR-E/Aqua Daily L3 25 km Tb, Sea Ice Temperature, & Sea Ice Conc. Polar Grids