datasources - Getting the Map into the Computer...

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Unformatted text preview: Getting the Map into the Computer Analog-to-Digital Maps Finding Existing Map Data Digitizing and Scanning Field and Image Data Data Entry Editing and Validation GIS maps Maps have a communications function but. .. A map has a storage function for spatial data Somehow, the visually stored data must get digital Real vs Virtual maps Existing Map Data Existing map data available through map libraries, online data repositories, or on digital media (CDs/DVD). Data vendors collect and transform data to sell to users GIS vendors package data with products. Federal Data Agencies USGS NOAA Census Bureau NIMA EPA many more. .. National Spatial Data Infrastructure National Spatial Data Clearinghouse and the Geospatial One Stop USGS: National Mapping Distributed active archive center Sioux Falls, SD Operated by USGS Eros Data Center http:// eros.usgs.gov / http://eros.usgs.gov/#/ Find_Data/Products_and_Data_Available/Elevation_Products U.S. Bureau of the Census U....
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datasources - Getting the Map into the Computer...

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