GIS Dictionary

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  1. [visualization] A map that is the basis of GIS visual and geographic context. It may include information such as landforms, administrative boundaries, landmarks, and roads. A basemap is used for locational or spatial data reference.
  2. [data analysis] A map to which GIS data layers are registered and rescaled.
  3. [data analysis] In imagery, a collection of geometrically correct imagery used as the backdrop for GIS layers.

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