GIS Dictionary

1 [standards] For a spatial dataset in ArcGIS 9.1 and previous versions, the defined precision and allowable range for x- […]

[ESRI software] In ArcGIS Spatial Analyst, an operation that performs spatial analysis. All Spatial Analyst tools in the Spatial Analyst

[data models] A two-dimensional grid system that spans a feature class. It is used to quickly locate features in a

[ESRI software] In a geodatabase, a mechanism for optimizing access to data based on the spatial column of the business

[spatial analysis] A type of table join operation in which fields from one layer’s attribute table are appended to another

[modeling] A methodology or set of analytical procedures used to derive information about spatial relationships between geographic phenomena.

[analysisgeoprocessing] The process of superimposing layers of geographic data that cover the same area to study the relationships between them.

[analysisgeoprocessing] A type of analysis in which data is extracted from one layer (such as block groups) to an overlay

[spatial analysis] A statement or logical expression that selects geographic features based on location or spatial relationship. For example, a

[ESRI software] In ArcGIS 9.2 or later, the coordinate system, tolerance, and resolution used to store a spatial dataset.

[statistics] The field of study concerning statistical methods that use space and spatial relationships (such as distance, area, volume, length,