The North American Datum (NAD) is the horizontal datum now used to define the geodetic network in North America. A datum is a formal description of the...

States of America based upon the General Adjustment of the North American Datum of 1988. It superseded the National Geodetic Vertical Datum of 1929 (NGVD...

A geodetic datum or geodetic system (also: geodetic reference datum, geodetic reference system, or geodetic reference frame, or terrestrial reference frame)...

Vertical Datum of 1929 is the official name since 1973 of the vertical datum established for vertical control surveying in the United States of America by the...

the large geodetic systems, such as European Datum (ED50), North American Datum (NAD), and Tokyo Datum (TD), to provide a worldwide geo-data basis Need...

professionals include the National Geodetic Vertical Datum of 1929 and the North American Vertical Datum of 1988. In common usage, elevations are often cited...

The South American Datum (SAD) is a regional historical geodetic datum for South America. The most common version was established in 1969 (SAD69), as adopted...

geodetic datum. In 1913, the datum was adopted across all of North America, and the system revised and formalized as the North American Datum of 1927 (NAD27)...

geodetic datum to be used for mapping and surveying purposes in Europe. It plays the same role for Europe as NAD-83 for North America. (NAD-83 is a datum in...

referenced to the same geodetic datum. A geographic coordinate transformation is a translation among different geodetic datums. Both geographic coordinate...

Examples include the World Geodetic System and the 1927 and 1983 North American Datum. A datum generally consists of an estimate of the shape of the Earth...

ED50 ("European Datum 1950", EPSG:4230) is a geodetic datum which was defined after World War II for the international connection of geodetic networks...

for positions in space. Local datums chosen by a national cartographical organization include the North American Datum, the European ED50, and the British...

from the geographical 49th parallel for the currently adopted datum, the North American Datum of 1983 (NAD 83). The Digital Chart of the World (DCW), which...

Reference System (NSRS). It will replace the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 88) with a new geometric...

2010. ECEF datum transformation Archived March 22, 2007, at the Wayback Machine Notes on converting ECEF coordinates to WGS-84 datum Datum Transformations...

– Mathematical Association of America". www.maa.org. Donald Engels (1985). The Length of Eratosthenes' Stade. American Journal of Philology 106 (3): 298–311...

data in latitude/longitude if the datum is the 'North American Datum of 1983' is denoted by 'GCS North American 1983'. While no digital model can be...

(vertical). These regional geodetic datums, such as ED 50 (European Datum 1950) or NAD 27 (North American Datum 1927), have ellipsoids associated with...

Nad, County Cork, a village in Ireland North American Datum, a series of geographic coordinate systems North Atlantic Drift, an Atlantic Ocean current...

is used for WGS84 and some other modern geodetic datums, the letter for the first row – just north of the equator – is A in odd-numbered zones, and F...

means current UTM northing at a given point can differ up to 200 meters from the old. For different geographic regions, other datum systems can be used...

Level Datum 1929 OSGB36 Ordnance Survey Great Britain 1936 SK-42 Systema Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS...

Parameter Dataset (also EPSG registry) is a public registry of geodetic datums, spatial reference systems, Earth ellipsoids, coordinate transformations...

choice of map projection (with specific parameters), a choice of geodetic datum to bind the coordinate system to real locations on the earth, an origin...

needed] Datum: OSGB36 Map projection: Transverse Mercator projection using Redfearn series True origin: 49°N, 2°W False origin: 400 km west, 100 km north of...

1927 North American Datum (NAD27); conversion or a change in settings is necessary when using a GPS which by default employ the WGS84 geodetic datum. Beginning...

local vertical used by astronomic observations relative to NAD 27 (North American Datum 1927), an ellipsoid of revolution that is at mean sea level beneath...

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...

Examples include the North American Datum 1983 (NAD83), the European Terrestrial Reference Frame 1989 (ETRF89), and the Geocentric Datum of Australia 1994...