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base map |
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A map or chart showing certain fundamental information, used as a base upon which additional data of specialized nature are compiled or overprinted. Also, a map containing all the information from which maps showing specialized information can be prepared. See also chart base; map. |
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Some students excelled in using the software and were responsible for digitally tracing impervious landcover features from an aerial photo base map. These datasets provide high-quality base map layers for GIS work and, especially with the yearly release of ESRI Data & Maps, provide longitudinal data that allow for the study of change over time. The 50 addresses that were not geocoded, and hence removed from the analysis, consisted mainly of rural routes and post office boxes that the base map was unable to locate (Hurley et al. |
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