"Timber VIGOR." . . . . "Remote sensing." . . "Satellite imagery." . . "Pennsylvania State University. Office for Remote Sensing of Earth Resources," . . "Thematic mapping." . . . . . "Development of a data management front-end for use with a Landsat-based information system. Phase III / Brian J. Turner"@en . . . . . . . . . . . "Goddard Space Flight Center," . . "Forest management." . . "Landsat satellites." . .