The development of ETRS89 is related to the global ITRSgeodetic datum, in which the representation of the continental drift is balanced in such a way that the total apparent angular momentum of continental plates is about 0. ETRS89 was officially born at the 1990 Florence meeting of EUREF, following its Resolution 1, which recommends that the terrestrial reference system to be adopted by EUREF will be coincident with ITRS at the epoch 1989.0 and fixed to the stable part of the Eurasian Plate. According to the resolution, this system was named European Terrestrial Reference System 89 (ETRS89). Since then ETRS89 and ITRS diverge due to the continental drift at a speed about 2.5 cm per year. By the year 2000 the two coordinate systems differed by about 25 cm.[1]
The 89 in its name does not refer to the year of solution (realization), but rather the year of initial definition, when ETRS89 was fully equivalent to ITRS. The solutions of ETRS89 correspond to the ITRS solutions. For each ITRS solution, a matching ETRS89 solution is being made. ETRF2000, for example, is an ETRS89 solution, which corresponds to ITRF2000. ETRS89 is realized by EUREF through the maintenance of the EUREF Permanent Network (EPN) and continuous processing of the EPN data in a few processing centres. Users have access to ETRS89 via EPN data products and real-time streams of differential corrections from a set of public providers based on the EPN stations. The transformation from ETRS89 to ITRS is time-dependent and was formulated by C. Boucher and Z. Altamimi [2][3]
ETRS89 is the EU-recommended frame of reference for geodata for Europe.[4] It is the only 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 which the North American Plate as a whole is static, and which is used for mapping and surveying in the US, Canada, and Mexico.) ETRS89 and NAD-83 are based on the GRS80ellipsoid. WGS84 originally used the GRS80 reference ellipsoid, but has undergone some minor refinements in later editions since its initial publication.
^GPS and Positioning Services FAQ, Q1 2007-04-15 at the Wayback Machine, UK Ordnance Survey, accessed 2007-11-25
^C. Boucher, Z. Altamimi. Specifications for reference frame fixing in the analysis of a EUREF GPS campaign. Unpublished Memo
^Soler, T.; Marshall, J. (2003). "A note on frame transformations with applications to geodetic datums". GPS Solutions. 7 (1): 23–32. doi:10.1007/s10291-003-0044-8. S2CID 195282233.
^"Short Proceedings of the 1st European Workshop on Reference Grids, Ispra, 27–29 October 2003" (PDF). European Environment Agency. 2004-06-14. p. 6. Retrieved 2009-08-27.
^. Archived from the original on 2013-04-06. Retrieved 2013-03-19.
european, terrestrial, reference, system, 1989, etrs89, ecef, earth, centered, earth, fixed, geodetic, cartesian, reference, frame, which, eurasian, plate, whole, static, coordinates, maps, europe, based, etrs89, subject, change, continental, drift, developmen. The European Terrestrial Reference System 1989 ETRS89 is an ECEF Earth Centered Earth Fixed geodetic Cartesian reference frame in which the Eurasian Plate as a whole is static The coordinates and maps in Europe based on ETRS89 are not subject to change due to the 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 such a way that the total apparent angular momentum of continental plates is about 0 ETRS89 was officially born at the 1990 Florence meeting of EUREF following its Resolution 1 which recommends that the terrestrial reference system to be adopted by EUREF will be coincident with ITRS at the epoch 1989 0 and fixed to the stable part of the Eurasian Plate According to the resolution this system was named European Terrestrial Reference System 89 ETRS89 Since then ETRS89 and ITRS diverge due to the continental drift at a speed about 2 5 cm per year By the year 2000 the two coordinate systems differed by about 25 cm 1 The 89 in its name does not refer to the year of solution realization but rather the year of initial definition when ETRS89 was fully equivalent to ITRS The solutions of ETRS89 correspond to the ITRS solutions For each ITRS solution a matching ETRS89 solution is being made ETRF2000 for example is an ETRS89 solution which corresponds to ITRF2000 ETRS89 is realized by EUREF through the maintenance of the EUREF Permanent Network EPN and continuous processing of the EPN data in a few processing centres Users have access to ETRS89 via EPN data products and real time streams of differential corrections from a set of public providers based on the EPN stations The transformation from ETRS89 to ITRS is time dependent and was formulated by C Boucher and Z Altamimi 2 3 ETRS89 is the EU recommended frame of reference for geodata for Europe 4 It is the only 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 which the North American Plate as a whole is static and which is used for mapping and surveying in the US Canada and Mexico ETRS89 and NAD 83 are based on the GRS80 ellipsoid WGS84 originally used the GRS80 reference ellipsoid but has undergone some minor refinements in later editions since its initial publication ETRS89 parameters 5 CS NAME ETRS89 SRID 4258 AUTH NAME EPSG See 3D CRS for original information source Coordinate System Type Geographic Datum European Terrestrial Reference System 1989 EPSG ID 4258 Spheroid GRS 1980 EPSG ID 7019 Semi Major Axis 6378137 000 Semi Minor Axis 6356752 314140 Inverse flattening 298 257222101 Prime Meridian Greenwich PM Units Decimal Degree 0 01745329251994328See also editWGS 84 ED50 AFREF Degrees minutes seconds DMS Geodetic datum KMZ file a zipped KML file Latitude Longitude Universal Transverse Mercator coordinate system UTM World Geodetic System References edit GPS and Positioning Services FAQ Q1 Archived 2007 04 15 at the Wayback Machine UK Ordnance Survey accessed 2007 11 25 C Boucher Z Altamimi Specifications for reference frame fixing in the analysis of a EUREF GPS campaign Unpublished Memo Soler T Marshall J 2003 A note on frame transformations with applications to geodetic datums GPS Solutions 7 1 23 32 doi 10 1007 s10291 003 0044 8 S2CID 195282233 Short Proceedings of the 1st European Workshop on Reference Grids Ispra 27 29 October 2003 PDF European Environment Agency 2004 06 14 p 6 Retrieved 2009 08 27 The Digital National Framework Archived from the original on 2013 04 06 Retrieved 2013 03 19 External links editETRS89 site Spanish ETRS89 site French ETRS89 site English ETRS89 site Portuguese Archived 2013 01 01 at the Wayback Machine Information from the Ordnance Survey of Ireland UTM to Google maps and others interface Retrieved from https en wikipedia org w index php title European Terrestrial Reference System 1989 amp oldid 1214719037, wikipedia, wiki, book, books, library,
