GIS Dictionary

[ESRI software] In Survey Analyst – Cadastral Editor, a feature class that uses the cadastral fabric as a basemap, and […]

[computing] In UML, the relationship between two classes. In an association, instances of the classes in question usually exist together,

[surveying] A bearing measured from an arbitrarily chosen reference line called an assumed meridian.

[astronomy] An instrument that measures the vertical angle between a celestial body and the horizontal plane at an observer’s position.

[data editing] Not synchronous; that is, not occurring together or at the same time.

1 [programming] In programming, a set of actions or events that may occur simultaneously. For example a program that launches

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

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

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

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

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