Landsat Orthorectified TM Overview
Landsat Orthorectified TM data were compiled through NASA's Commercial Remote Sensing Program; this program is a cooperative effort between NASA and the commercial remote sensing community to provide users with access to quality-screened, high-resolution satellite images with global coverage over the Earth's land masses. The resulting Landsat thematic mapper (TM) geocover data set contains orthorectified Landsat TM sensor data from the Landsat-4 and -5 satellites. Only the Landsat images that most closely met a specific set of criteria, including acquisition date, cloud percentage, data quality parameters, and best available phenology, were considered for the collection. The Landsat TM data were compiled through a NASA contract with Earth Satellite Corporation, Rockville, Maryland, and are part of NASA's Scientific Data Purchase program, developed in response to the President's Space Policy.
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