GIS Dictionary

[geodesy] The angle between magnetic north and true north observed from a point on the earth. Magnetic declination varies from […]

[geography] The direction from a point on the earth’s surface following a great circle toward the magnetic north pole, indicated

[physics] An instrument used to measure variations in the strength and direction of the earth’s magnetic field.

[ESRI software] A secondary window in ArcMap data view that shows a magnified view of a small area without changing

[ESRI software] A license that has a current maintenance contract with ESRI Customer Service. ESRI software users who have maintenance

[computing] The date a maintenance contract expires for a particular product. Multiple copies of the same product may expire on

The longer axis of an ellipse or spheroid.

[spatial statistics use for geostatistics] A technique for resampling raster data in which the value of each cell in an

[ESRI software] In ArcGIS Spatial Analyst, an option that creates a permanent raster (one that is saved to disk) from

[data structures] A raster catalog in which the raster datasets are copied to a location assigned by a geodatabase. When

[database structures] An association between two linked or joined tables in which one record in the first table may correspond