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Columbia is a town in the Capitol Planning Region, Connecticut, United States. The population was 5,272 at the 2020 census. [1] Originally a part of Lebanon, known as the North Society or Lebanon's Crank, [2] Columbia was incorporated in May 1804. The town was named for patriotic reasons after the national symbol "Columbia". [3]
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.
When computers began to be used for mapping and GIS, the state plane system's cartesian grid system and simplified calculations made spatial processing faster and spatial data easier to work with. Even though computer processing power has improved radically since the early days of GIS, the size of spatial datasets and the complexity of ...
Depicted hardware (field-map technology) is used mainly for forest inventories, monitoring and mapping. GIS data acquisition includes several methods for gathering spatial data into a GIS database, which can be grouped into three categories: primary data capture, the direct measurement phenomena in the field (e.g., remote sensing, the global ...
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.
Some COGs also serve as either federal metropolitan planning organizations (MPO), rural planning organizations (RPO), or share staff with one or more MPOs/RPOs within their borders; the Western Connecticut COG, for example, supports both the Housatonic Valley MPO and the South Western CT MPO.
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Most geographic information systems (GIS) and GIS libraries use EPSG codes as Spatial Reference System Identifiers (SRIDs) and EPSG definition data for identifying coordinate reference systems, projections, and performing transformations between these systems, while some also support SRIDs issued by other organizations (such as Esri).
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