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NHGIS provides free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2012. Atlas of Historical County Boundaries Project (AHCBP) The AHCBP documents all boundary changes in states and counties in United States territory, including non-county areas never before compiled or mapped ...
The TIGER files do not contain the census demographic data, but merely the geospatial/map data. GIS can be used to merge census demographics or other data sources with the TIGER files to create maps and conduct analysis. TIGER data is available without cost because U.S. Government publications are required to be released into the public domain.
The United States Census Department extensively uses Web GIS to distribute its boundary data, such as TIGER files, and demographics to the public. [ 1 ] [ 16 ] The "2020 Census Demographic Data Map Viewer" runs on an ESRI Web Map Application, and provides demographic information, such as population, race, and housing information at the state ...
For example, if a researcher in Assam, India, conducts a survey of tiger numbers in the area, they can share their results on the web-based mapping system, generating a new version of the map.
Student information systems provide capabilities for registering students in courses; documenting grading, transcripts of academic achievement and co-curricular activities, and the results of student assessment scores; forming student schedules; tracking student attendance; generating reports and managing other student-related data needs in an ...
The World Wide Web is an information system that uses the internet to host, share, and distribute documents, images, and other data. [33] Web GIS involves using the World Wide Web to facilitate GIS tasks traditionally done on a desktop computer, as well as enabling the sharing of maps and spatial data. [7]
Each map in a MOSS database could have up to 32,000 features. There was no limit on the number of maps in the database. Each map had a map header that contained a variety of metadata, such as the coordinate reference system (projection), date of creation, owner, data of last update, description, and so forth. Metadata was "searchable".
Dual Independent Map Encoding (DIME) is an encoding scheme developed by the US Bureau of the Census for efficiently storing geographical data. The committee behind the case study that eventually resulted in DIME was established in 1965, although the term DIME itself was first coined by George Farnsworth in August 1967.
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