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Data sets Publications Expeditions Thesaurus
spatial  search
spatial data  search
RTdata
 data bases
 data management
 data processing
 digital cartography
 digital data
 digital line graphs
 digital terrain models
 geographic information systems
 information management
 Internet
 spatial variations
 visualization
SNGeographically referenced information. Indexed with with programs using or data bases containing this type of data. Also index digital data if applicable. Added to Thesaurus in 1995.
spatial distribution  search
RTdistribution
 power law
SNAdded to Thesaurus in 1981.
spatial frequency filters  search
RTfilters
SNAdded to Thesaurus in 1981.
spatial variations  search
RTspatial data
 variations
SNUsed as a general term.