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List of GIS data sources. This is a list of GIS data sources (including some geoportals) that provide information sets that can be used in geographic information systems (GIS) and spatial databases for purposes of geospatial analysis and cartographic mapping. This list categorizes the sources of interest.
A geographic information system (GIS) consists of integrated computer hardware and software that store, manage, analyze, edit, output, and visualize geographic data. [1][2] Much of this often happens within a spatial database; however, this is not essential to meet the definition of a GIS. [1] In a broader sense, one may consider such a system ...
Website. www.fgdc.gov. The Federal Geographic Data Committee (FGDC) is a United States government committee which promotes the coordinated development, use, sharing, and dissemination of geospatial data on a national basis. Its 32 members are representatives from the Executive Office of the President, and Cabinet level and independent federal ...
According to 2023 U.S. Census data, the average population of Alabama's 67 counties is 76,246, with Jefferson County as the most populous (662,895), and Greene County (7,341) the least. [7] The average land area is 756 sq mi (1,958 km 2). The largest county is Baldwin (1,590 sq mi, 4,118 km 2) and the smallest is Etowah (535 sq mi, 1,386 km 2). [8]
Geoportal. A geoportal is a type of web portal used to find and access geographic information (geospatial information) and associated geographic services (display, editing, analysis, etc.) via the Internet. Geoportals are important for effective use of geographic information systems (GIS) and a key element of a spatial data infrastructure (SDI).
China Historical Geographic Information System is a project on Imperial China developed by Harvard University and Fudan University. Electronic Cultural Atlas Initiative (ECAI) is a clearinghouse for the exchange of metadata of Historical GIS. Maintained by the University of California, Berkeley. Euratlas History Maps is a historical atlas of ...
Map of the United States with Alabama highlighted. Alabama is a state located in the Southern United States.According to the 2020 United States Census, Alabama is the 24th most populous state with 5,024,279 inhabitants [1] and the 28th largest by land area spanning 50,645.33 square miles (131,170.8 km 2) of land. [2]
Alabama statistical areas. Coordinates: 32.7794°N 86.8287°W. The U.S. State of Alabama currently has 35 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated nine combined statistical areas, 13 metropolitan statistical areas, and 13 micropolitan statistical areas in ...