Choose Index below for a list of all words and phrases defined in this glossary.
altitude -
(1) [coordinate systems] The height or vertical elevation of a point above a reference surface. Altitude measurements are usually based on a given reference datum, such as mean sea level.
(2) [map display] The height above the horizon, measured in degrees, from which a light source illuminates a surface. Altitude is used when calculating a hillshade, or for controlling the position of a light source in a scene.
[Category=Geospatial ]
Source: esri, 15 January 2012 09:53:56, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation
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