"SRID" redirects here. For the polyhedron, see Rhombicosidodecahedron.
Geodesy
Fundamentals
Geodesy
Geodynamics
Geomatics
History
Concepts
Geographical distance
Geoid
Figure of the Earth (radius and circumference)
Geodetic coordinates
Geodetic datum
Geodesic
Horizontal position representation
Latitude / Longitude
Map projection
Reference ellipsoid
Satellite geodesy
Spatial reference system
Spatial relations
Vertical positions
Technologies
Global Nav. Sat. Systems (GNSSs)
Global Pos. System (GPS)
GLONASS (Russia)
BeiDou (BDS) (China)
Galileo (Europe)
NAVIC (India)
Quasi-Zenith Sat. Sys. (QZSS) (Japan)
Discrete Global Grid and Geocoding
Standards (history)
NGVD 29
Sea 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 80
Geodetic Reference System 1980
ISO 6709
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
International Terrestrial Reference System
Spatial Reference System Identifier (SRID)
Universal Transverse Mercator (UTM)
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A spatial reference system (SRS) or coordinate reference system (CRS) is a framework used to precisely measure locations on the surface of Earth as coordinates. It is thus the application of the abstract mathematics of coordinate systems and analytic geometry to geographic space. A particular SRS specification (for example, "Universal Transverse Mercator WGS 84 Zone 16N") comprises a choice of Earth ellipsoid, horizontal datum, map projection (except in the geographic coordinate system), origin point, and unit of measure. Thousands of coordinate systems have been specified for use around the world or in specific regions and for various purposes, necessitating transformations between different SRS.
Although they date to the Hellenic Period, spatial reference systems are now a crucial basis for the sciences and technologies of Geoinformatics, including cartography, geographic information systems, surveying, remote sensing, and civil engineering. This has led to their standardization in international specifications such as the EPSG codes[1] and ISO 19111:2019 Geographic information—Spatial referencing by coordinates, prepared by ISO/TC 211, also published by the Open Geospatial Consortium as Abstract Specification, Topic 2: Spatial referencing by coordinate.[2]
^"Using the EPSG geodetic parameter dataset, Guidance Note 7-1". EPSG Geodetic Parameter Dataset. Geomatic Solutions. Archived from the original on 15 December 2021. Retrieved 15 December 2021.
^"OGC Abstract Specification Topic 2: Referencing by coordinates Corrigendum". Open Geospatial Consortium. Archived from the original on 2021-07-30. Retrieved 2018-12-25.
and 27 Related for: Spatial reference system information
A spatialreferencesystem (SRS) or coordinate referencesystem (CRS) is a framework used to precisely measure locations on the surface of Earth as coordinates...
The National SpatialReferenceSystem (NSRS), managed by the National Geodetic Survey (NGS), is a coordinate system that includes latitude, longitude,...
coordinate system – also called a projected coordinate referencesystem, planar coordinate system, or grid referencesystem – is a type of spatialreference system...
The Geodetic ReferenceSystem 1980 (GRS80) is a geodetic referencesystem consisting of a global reference ellipsoid and a normal gravity model. Geodesy...
The Global Area ReferenceSystem (GARS) is a standardized geospatial referencesystem developed by the National Geospatial-Intelligence Agency (NGA) for...
The Military Grid ReferenceSystem (MGRS) is the geocoordinate standard used by NATO militaries for locating points on Earth. The MGRS is derived from...
It is the simplest, oldest and most widely used of the various spatialreferencesystems that are in use, and forms the basis for most others. Although...
geographic space (usually a scanned map or aerial photograph) to a spatialreferencesystem, thus locating the digital data in the real world. It is thus the...
(also EPSG registry) is a public registry of geodetic datums, spatialreferencesystems, Earth ellipsoids, coordinate transformations and related units...
geographic applications, a geodesic reference ellipsoid is the mathematical model used as foundation by spatialreferencesystem or geodetic datum definitions...
geodetic system (also: geodetic reference datum, geodetic referencesystem, or geodetic reference frame) is a global datum reference or reference frame for...
The European Terrestrial ReferenceSystem 1989 (ETRS89) is an ECEF (Earth-Centered, Earth-Fixed) geodetic Cartesian reference frame, in which the Eurasian...
commentaries for their derivation have also been given. The WGS 84 spatialreferencesystem describes Earth as an oblate spheroid along north-south axis with...
The International Terrestrial ReferenceSystem (ITRS) describes procedures for creating reference frames suitable for use with measurements on or near...
Linear referencing, also called linear referencesystem or linear referencingsystem (LRS), is a method of spatialreferencing in engineering and construction...
88 was affirmed as the official vertical datum in the National SpatialReferenceSystem (NSRS) for the Conterminous United States and Alaska. (see Federal...
Geographic information systems (GIS), spatial database management and geographic information technology (GeoIT) Spatial analysis, spatial data mining and knowledge...
SpatialReferenceSystem, NAD 83, along with North American Vertical Datum of 1988 (NAVD 88), are set to be replaced with a new geometric reference frame...
webpage for WGS 84 Geodesy for the Layman, Chapter VIII, "The World Geodetic System" Spatialreference for EPSG:4326 ANTEX (.atx) files that define IGS20...
Pokémon Go. Reference frames: realization and densification of the terrestrial reference frames in the framework of Global Geodetic Observing System. Co-location...
Hellenic Geodetic ReferenceSystem 1987 or HGRS87 (Greek: Ελληνικό Γεωδαιτικό Σύστημα Αναφοράς 1987 or ΕΓΣΑ'87) is a geodetic system commonly used in Greece...
Survey National Grid referencesystem (OSGB), also known as British National Grid (BNG), is a system of geographic grid references used in Great Britain...
a short period of time. There are two basic types of reference locality – temporal and spatial locality. Temporal locality refers to the reuse of specific...
The Irish grid referencesystem is a system of geographic grid references used for paper mapping in Ireland (both Northern Ireland and the Republic of...
Geodetic Survey (NGS) and predecessor agencies manages the National SpatialReferenceSystem (NSRS), which includes permanent survey marks for horizontal position...
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