In the third quarter of 1981, a new, experimental Earth-resources monitoring system, Landsat-D, is scheduled for launch. The characteristics of this system have been under consideration since about 1970 through a series of study efforts and with the guidance of several advisory groups composed of representatives of federal, state, and local agencies, private industry, and university personnel. From these studies and efforts evolved an Earth resources monitoring system, Landsat-D, that includes several technological advances over the capabilities provided by Landsats 1, 2, and 3. In essence, the Landsat-D system is designed to be a complete, highly automated data gathering and processing system that should substantially contribute to more effective remote sensing of Earth resources and to the management of these resources on a local, regional, continental, and global basis.
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