GIS Dictionary

Definitions for GIS terms related to operations such as analysis, GIS modeling and web-based GIS, cartography, and Esri software.

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parameter

  1. [map projections] One of the variables that define a specific instance of a map projection or a coordinate system. Parameters differ for each projection and can include central meridian, standard parallel, scale factor, or latitude of origin.
  2. [mathematics] A variable that determines the outcome of a function or operation.
  3. [ESRI software] In geoprocessing in ArcGIS, a characteristic of a tool. Values set for parameters define a tool's behavior during run time.