GIS Dictionary

All map features associated with the movement and flow of water, such as rivers, streams, and lakes.

[ESRI software] A layer in ArcGlobe that has been categorized to be draped on top of the globe surface.

[data models] Acronym for digital raster graphic. A raster image of a scanned USGS standard series topographic map, usually including

[spatial statistics use for geostatistics] The general pattern of z-values throughout a kriging model. The drift, or structure, forms the

[spatial analysis] A zone around a map feature measured in units of time needed for travel by car. For example,

A type of scanner in which a hard-copy image or map is attached to a cylinder that spins while a

[data models] Acronym for digital surface model. The representation of continuous elevation values over a topographic surface, including vegetation and

[programming] Acronym for document type definition. A set of rules that define the allowed structure and properties of XML documents.

[data models] Acronym for digital terrain elevation data. A format for elevation data, usually tiled in 1-degree cells, produced by

[ESRI software] Labels with identical content. Maplex for ArcGIS provides the option of labeling only a single feature out of

[ESRI software] A feature class consisting of points associated with address elements in an address data table that change based