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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.
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 Open Geospatial Consortium (OGC) is an international voluntary consensus standards organization that develops and maintains international standards for geospatial content and location-based services, sensor web, Internet of Things, GIS data processing and data sharing. The OGC was incorporated as a not for profit in 1994.
The U.S. state of Connecticut is divided into 169 municipalities, including 19 cities, 149 towns and one borough, which are grouped into eight historical counties, as well as nine planning regions which serve as county equivalents.
Darien (/ ˌ d ɛər i ˈ æ n / DAIR-ee-AN) is a coastal town in Fairfield County, Connecticut, United States.With a population of 21,499 and a land area of just under 13 square miles (34 km 2), it is the smallest town on Connecticut's Gold Coast.
Fairfield County is a county in the southwestern corner of the U.S. state of Connecticut.It is the most populous county in the state and was also its fastest-growing from 2010 to 2020.
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Collect: Data is collected in several different ways. In ecoinformatics, this is usually restricted to manually entering data into a spreadsheet, and parsing data from an existing database. The growth of relational databases has made it easier for ecologists to download relevant data and integrate datasets together