Space technology: Landsat: Multispectral eye in the sky: Data collected by the Landsat satellites' remote sensors are exploited in mapping, meteorology, and resource identification

摘要

The Landsat system, formerly the Earth Resources Technology Satellite (ERTS), comprises three major components: two spacecraft, remote sensors, and the ground data-handling system. The overall system is designed to perform three functions: the acquisition of multispectral images, the collection of data from the remotely located sensors, and the production of photographic and digital data.