GIS Dictionary

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ATL

[programming] Acronym for Active Template Library. A set of C++ template classes, developed by Microsoft for use in building Windows […]

atlas

[cartography] A collection of maps usually related to a particular area or theme and presented together. Examples of atlases include

atmospheric window

[remote sensing] Parts of the electromagnetic spectrum that can be transmitted through the atmosphere with relatively little interference.

atomic clock

[physics] A clock that keeps time by the radiation frequency associated with a particular atomic reaction. Atomic clocks are used

attenuation

[remote sensing] The dimming and blurring effects in remotely sensed images caused by the absorption and scattering of light or

attractiveness

[business] A measure of the combined attributes of a center or site that are considered positive features or that draw

attribute

1 [data models] Nonspatial information about a geographic feature in a GIS, usually stored in a table and linked to

attribute data

[data models] Tabular or textual data describing the geographic characteristics of features.

attribute domain

[data structures] In a geodatabase, a mechanism for enforcing data integrity. Attribute domains define what values are allowed in a

attribute query

[data analysis] A request for records of features in a table based on their attribute values.

attribute table

[data structures] A database or tabular file containing information about a set of geographic features, usually arranged so that each

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