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Base Maps, Data or Layers

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Base Maps, Data, or Layers - definition(s)

base maps, data, or layers - Spatial data sets that provide the background upon which more specific thematic data is overlaid and analyzed. As inputs into a GIS, the term base map is usually applied to those sources of information about relatively permanent features including topography, soil data, geology, cadastral divisions, and political divisions. Within a GIS database, such information may become part of a land base to which other information is indexed and referenced.

[Category=Geospatial ]

Source: Open Geospatial Consortium, 02 June 2011 08:58:56, External 

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