Published By Federal Emergency Management Agency, Department of Homeland Security
Issued about 9 years ago
US
beta
Summary
Description
Basemap datasets comprise six of the seven FGDC themes of geospatial data that are used by most GIS applications (Note the seventh framework theme, orthographic imagery, is packaged in a separate NFIP Metadata Profile): cadastral, geodetic control, governmental unit, transportation, general structures, hydrography (water areas and lines). These data include an encoding of the geographic extent of the features and a minimal number of attributes needed to identify and describe the features. (Source: Circular A16, p. 13)