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The list of national coordinate reference systems (CRS) lists map projections officially recommended for existing countries. Given that every projection gives deformations, each country's needs are different in order to reduce these distortions.
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Locate maps and geographic data content for a particular part of the state or search based on keyword or theme type. [12] Kentucky Open Data Portal: The Kentucky Open Data Portal is a site for exploring, accessing and downloading Kentucky-specific GIS data and discovering mapping apps.
DJI, a Chinese-based technology company, got rid of its geofence software, which stopped people from flying drones over the White House, runways, power plants and during public emergencies. First ...
External (RS-232C interface to a GPS receiver, such as Garmin GPS III, Garmin GPS III Plus, Garmin eTrek, Magellan ColorTrack, Magellan MAP 315 or Magellan MAP 330) [100] [97] [98] Nikon D5: DSLR 2016 External (Nikon GP-1, GP-1A, many third party) Nikon D6: DSLR 2020 [101] Built-in GPS [102] Nikon Df: DSLR 2013 External (Nikon GP-1, GP-1A, many ...
The World Geographic Reference System (GEOREF) is a geocode, a grid-based method of specifying locations on the surface of the Earth. GEOREF is essentially based on the geographic system of latitude and longitude , but using a simpler and more flexible notation .
The study of GIR systems has a rich history dating back to the 1970s and possibly earlier. See Ray Larson’s book Geographic information retrieval and spatial browsing [20] for references to much of the pre-Web literature on GIR. In 2005 the Cross-Language Evaluation Forum added a geographic track, GeoCLEF.
Geographic point coord. 1983: NAD 83: North American Datum 1983: WGS 84: World Geodetic System 1984: NAVD 88: N. American Vertical Datum 1988: ETRS89: European Terrestrial Ref. Sys. 1989: GCJ-02: Chinese obfuscated datum 2002: Geo URI: Internet link to a point 2010