GIS Dictionary

[non-ESRI software] Acronym for Component Category ID. A unique string assigned to locally related COM classes to group them together. […]

[government] A geographic region containing at least one urban area with a population of at least 10,000, defined by the

[hardware] An optical disk, slightly less than 5 inches in diameter, used to store up to approximately 650 megabytes of

[astronomy] The sky, considered as the inside of a sphere of infinitely large radius that surrounds the earth, on which

1 [graphics computing] The smallest unit of information in raster data, usually square in shape. In a map or GIS

[analysisgeoprocessing] The process of selecting raster cells either interactively or by using a SQL query.

[data models] The dimensions on the ground of a single cell in a raster, measured in map units. Cell size

[ESRI software] An ArcGIS Spatial Analyst function that calculates a statistic for each cell of an output raster that is

[modeling] A mathematical construction consisting of a row or grid of cells in which each cell has an initial valuefrom

[federal government] The smallest geographic entity for which the U.S. Census Bureau tabulates decennial census data. Many blocks correspond to

[federal government] Any one of various types of precisely defined geographic areas used by the U.S. Census Bureau to collect