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Thus the state plane coordinate system is still useful. Originally, the state plane coordinate systems were based on the North American Datum of 1927 (NAD27). Later, the more accurate North American Datum of 1983 (NAD83) became the standard (a geodetic datum is the way a coordinate system is linked to the physical Earth). More recently there ...
Primarily from the United States Government Printing Office Style Manual. [1] State names usually signify only parts of each listed state, unless otherwise indicated. Based on the BLM manual's 1973 publication date, and the reference to Clarke's Spheroid of 1866 in section 2-82, coordinates appear to be in the NAD27 datum.
Each state has its own set of reference parameters given in the standard. [8] The U.S. National Geodetic Survey's "State Plane Coordinate System of 1983" uses the Lambert conformal conic projection to define the grid-coordinate systems used in several states, primarily those that are elongated west to east such as Tennessee.
Map of Tennessee (click on map to see larger image) Module:Location map/data/USA Tennessee is a location map definition used to overlay markers and labels on an equirectangular projection map of the U.S. state of Tennessee. The markers are placed by latitude and longitude coordinates on the default map or a similar map image.
In the first half of the 20th century, State Plane Coordinate Systems (SPCS) brought the simplicity and convenience of Cartesian coordinates to state-level areas, providing high accuracy (low distortion) survey-grade coordinates for use primarily by state and local governments. (Both of these planar systems remain in use today for specialized ...
A datum is a formal description of the shape of the Earth along with an "anchor" point for the coordinate system. In surveying, cartography, and land-use planning, two North American Datums are in use for making lateral or "horizontal" measurements: the North American Datum of 1927 (NAD 27) and the North American Datum of 1983 (NAD 83).
Tennessee (/ ˌ t ɛ n ɪ ˈ s iː / ⓘ, locally / ˈ t ɛ n ɪ s i /), [8] [9] [10] officially the State of Tennessee, is a landlocked state in the Southeastern region of the United States. It borders Kentucky to the north, Virginia to the northeast, North Carolina to the east, Georgia , Alabama , and Mississippi to the south, Arkansas to the ...
State Plane Coordinate System (SPCS): another composite system of more than 120 coordinate systems (zones), each covering a state of the United States or a portion thereof. Swiss coordinate system (LV95): covers Switzerland, using a Mercator projection.