Imagery Theme Definition: Georeferenced images of the Earth’s surface, which have been collected via aerial photography or satellite data. Orthoimagery is prepared through a geometric correction process known as orthorectification to remove image displacements due to relief and sensor characteristics, allowing their use as base maps for digital mapping and analyses in a GIS. Specific imagery data sets created through image interpretation and classification, such as a land cover image, can be found under themes specific to the subject matter. Includes imagery such as Landsat, NAIP, and DOQQs.
Updated on September 13, 2017
Imagery Theme

Community Type: NGDA

Sponsor: FGDC

Sponsor Email: NGDATeam@fgdc.gov

Theme Lead Agency: U.S. Department of Agriculture, Farm Production and Conservation (FPAC) and U.S. Department of the Interior, U.S. Geological Survey

Theme Lead: John Mootz, FPAC and Gregory Snyder, USGS