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z-value - [coordinate systems] The value for a given surface location that represents an attribute other than position. In an elevation or terrain model, the z-value represents elevation; in other kinds of surface models, it represents the density or quantity of a particular attribute.
[Category=Geospatial ]
Source: esri, 16 October 2012 09:32:05, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation
Data Quality Glossary. A free resource from GRC Data Intelligence. For comments, questions or feedback: dqglossary@grcdi.nl