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Community Mapping Glossary (A)

 

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April 14, 2008
 

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Absolute location: A point on the Earth's surface expressed by a coordinate system, such as latitude and longitude, or UTM.

Aggregation: A form of generalization that involves representing several similar nearby features (such as gardens or rock-piles) as a single, larger feature on a map.

Air  photographs or aerial photographs: Remote-sensing photographs taken from an airplane.

Almanac: A continuously updated collection of data that a GPS receiver uses to determine the positions of the GPS satellites when it calculates coordinates.

Area feature: Something on the land - such as a plantation, hunting area, marsh, or lake - large enough to be depicted at scale on a map (shown with a polygon).

Asset allocation mapping (AAM): this enables communities to make informed decisions over the allocation of their territorial assets. To do this, they need not only to arrive at their own evaluations of these assets but also to understand the multiple values assigned to their assets by others: to map the ways in which assets are perceived, evaluated, imagined by an unfamiliar and mutating array of external interests (source: Peter Poole).

Attribute data: Information about a feature on a map or thematic information.

Azimuth: The angle (often in degrees) that a certain direction (to a landmark, for example) is from the north meridian at a certain place.

Adapted with permission from: Flavelle, A. 2002. Mapping our Land
 

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