• Thumbnail for Geodetic datum
    A geodetic datum or geodetic system (also: geodetic reference datum, geodetic reference system, or geodetic reference frame, or terrestrial reference...
    31 KB (3,368 words) - 17:55, 7 November 2024
  • Thumbnail for World Geodetic System
    WGS 84, defines an Earth-centered, Earth-fixed coordinate system and a geodetic datum, and also describes the associated Earth Gravitational Model (EGM) and...
    24 KB (2,842 words) - 20:50, 20 November 2024
  • Thumbnail for North American Datum
    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...
    13 KB (1,634 words) - 03:57, 20 November 2024
  • Thumbnail for National Geodetic Vertical Datum of 1929
    The National Geodetic Vertical Datum of 1929 is the official name since 1973 of the vertical datum established for vertical control surveying in the United...
    4 KB (397 words) - 01:26, 19 November 2023
  • Thumbnail for North American Vertical Datum of 1988
    North American Datum of 1988. It superseded the National Geodetic Vertical Datum of 1929 (NGVD 29), previously known as the Sea Level Datum of 1929. NAVD...
    7 KB (732 words) - 16:18, 31 January 2024
  • Thumbnail for Geodesy
    Geodesy (redirect from Geodetics)
    and terrestrial geodetic techniques, and relying on datums and coordinate systems. Geodetic job titles include geodesist and geodetic surveyor. Geodesy...
    38 KB (4,285 words) - 21:16, 21 October 2024
  • referenced to the same geodetic datum. A geographic coordinate transformation is a translation among different geodetic datums. Both geographic coordinate...
    34 KB (5,200 words) - 08:18, 10 August 2024
  • Thumbnail for Geographic coordinate system
    19111 standards, also includes a choice of geodetic datum (including an Earth ellipsoid), as different datums will yield different latitude and longitude...
    22 KB (2,491 words) - 02:51, 17 November 2024
  • Thumbnail for Vertical datum
    National Geodetic Survey. In the United States, prominent vertical datums in use by professionals include the National Geodetic Vertical Datum of 1929...
    11 KB (1,471 words) - 02:22, 14 September 2024
  • Thumbnail for U.S. National Geodetic Survey
    Mariana plates will have their own respective geodetic datums. The North American-Pacific Geopotential Datum of 2022 (NAPGD2022) will separately define the...
    7 KB (762 words) - 18:36, 21 November 2024
  • Thumbnail for ED50
    ED50 (redirect from European Datum 1950)
    ("European Datum 1950", EPSG:4230) is a geodetic datum which was defined after World War II for the international connection of geodetic networks. Some...
    8 KB (927 words) - 23:56, 8 June 2024
  • Thumbnail for Meades Ranch Triangulation Station
    as 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...
    15 KB (1,486 words) - 22:19, 16 November 2023
  • Thumbnail for European Terrestrial Reference System 1989
    continental drift. The development of ETRS89 is related to the global ITRS geodetic datum, in which the representation of the continental drift is balanced in...
    6 KB (611 words) - 09:24, 3 July 2024
  • Thumbnail for EPSG Geodetic Parameter Dataset
    EPSG Geodetic Parameter Dataset (also EPSG registry) is a public registry of geodetic datums, spatial reference systems, Earth ellipsoids, coordinate...
    5 KB (450 words) - 10:37, 21 July 2024
  • Thumbnail for Luzon Datum of 1911
    established with triangulation station Balanacan as its datum origin. The Luzon Datum became the primary geodetic reference of all surveys in the Philippines. Rappelye...
    4 KB (374 words) - 20:24, 3 September 2024
  • Thumbnail for Projected coordinate system
    a 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...
    21 KB (2,803 words) - 02:24, 13 November 2024
  • Thumbnail for Earth-centered, Earth-fixed coordinate system
    Wayback Machine Clearer notes on converting ECEF coordinates to WGS-84 datum geodetic datum overview orientation of the coordinate system and additional information...
    9 KB (904 words) - 15:59, 18 September 2024
  • The Geocentric Datum of Australia 1994 (GDA94) is a geodetic datum covering the Australian continent. Details of this datum are provided by the GDA94 Technical...
    4 KB (396 words) - 23:35, 17 November 2023
  • Thumbnail for Sea level
    Sea level (category Vertical datums)
    global MSL is a type of vertical datum – a standardised geodetic datum – that is used, for example, as a chart datum in cartography and marine navigation...
    23 KB (4,104 words) - 03:03, 16 July 2024
  • dimensioning and tolerancing (GD&T), aviation, surveying, geodesy (geodetic datums), and others. In carpentry, an alternative, more common name is "face...
    6 KB (900 words) - 02:47, 7 September 2023
  • Thumbnail for Hellenic Geodetic Reference System 1987
    (SRID=2100). The system specifies a local geodetic datum and a projection system. In some documents it is called Greek Geodetic Reference System 1987 or GGRS87...
    7 KB (827 words) - 10:33, 27 October 2024
  • Thumbnail for Ordnance datum
    Liverpool datum. But following the Third Geodetic Levelling, Ordnance Survey maps published since March 1956 give spot heights above the Newlyn datum. Newlyn...
    7 KB (778 words) - 22:49, 30 October 2024
  • Thumbnail for National Spatial Reference System
    American-Pacific Geopotential Datum of 2022 (NAPGD2022) is a new geodetic datum set to be produced by the U.S. National Geodetic Survey in 2025 or 2026 to...
    6 KB (576 words) - 14:50, 24 November 2024
  • Thumbnail for South American Datum
    The South American Datum (SAD) is a regional historical geodetic datum for South America. The most common version was established in 1969 (SAD69), as...
    2 KB (255 words) - 20:02, 13 August 2023
  • Thumbnail for Latitude
    Latitude (redirect from Geodetic Latitude)
    reference datum may be illustrated by a simple example. On the reference ellipsoid for WGS84, the centre of the Eiffel Tower has a geodetic latitude of...
    47 KB (6,184 words) - 12:15, 14 November 2024
  • Thumbnail for Chart datum
    from the tide table. Using charts and tables not based on the same geodetic datum can result in incorrect calculation of water depths. In recent years...
    10 KB (1,156 words) - 00:08, 23 July 2024
  • Thumbnail for Ordnance Survey National Grid
    square to the north of 49 is N40, etc. The grid is based on the OSGB36 datum (Ordnance Survey Great Britain 1936, based on the Airy 1830 ellipsoid),...
    19 KB (2,177 words) - 07:38, 19 August 2024
  • Thumbnail for Elevation
    Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Vertical datum). The term elevation is mainly used when referring to points...
    6 KB (561 words) - 15:40, 18 November 2024
  • Thumbnail for Military Grid Reference System
    also known as MGRS-New, which is used for WGS84 and some other modern geodetic datums, the letter for the first row – just north of the equator – is A in...
    15 KB (2,140 words) - 08:57, 12 November 2024
  • Thumbnail for Geodetic control network
    coordinates are generally in some particular map projection, unit, and geodetic datum. In "classical geodesy" (up to the sixties) control networks were established...
    7 KB (718 words) - 14:11, 14 May 2024