GIS Dictionary

[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

[federal government] A small, statistical subdivision of a county that usually includes approximately 4,000 inhabitants but may include from 2,500

[Euclidean geometry] The point in a circle or in a sphere equidistant from all other points on the object.

[data capture] A line digitized along the center of a linear geographic feature, such as a street or a river,