GIS Dictionary

[graphics map display] A graphic representation of a location; for example, a point to represent the location of a smokestack, […]

[coordinate systems] A systematic conversion of the latitude-longitude values for a set of points from one geographic coordinate system to

1 [geography] The study of the earth’s surface, encompassing the description and distribution of the various physical, biological, economic, and

[government] A division of statistical geographic data, such as country, province, postal code, tract, or block group.

[geodesy] A hypothetical surface representing the form the earth’s oceans would take if there were no land and the water

[geodesy] The height of the geoid above the ellipsoid.

[geodesy] The distance from the surface of an ellipsoid to the surface of the geoid, measured along a line perpendicular

[geolocating] The process of creating geographic features from tabular data by matching the tabular data to a spatial location. An

[ESRI software] The distance within which features in a geometric network are deemed to be coincident and, therefore, connected.

[remote sensing] The correction of errors in remotely sensed data, such as those caused by satellites or aircraft not staying

[ESRI software] In ArcGIS, a dynamic process that can be applied within a representation rule to dynamically alter the geometry