BOUNDCRS[SOURCECRS[PROJCRS["ETRS89 / NTM zone 27",BASEGEOGCRS["ETRS89",ENSEMBLE["European Terrestrial Reference System 1989 ensemble",MEMBER["European Terrestrial Reference Frame 1989"],MEMBER["European Terrestrial Reference Frame 1990"],MEMBER["European Terrestrial Reference Frame 1991"],MEMBER["European Terrestrial Reference Frame 1992"],MEMBER["European Terrestrial Reference Frame 1993"],MEMBER["European Terrestrial Reference Frame 1994"],MEMBER["European Terrestrial Reference Frame 1996"],MEMBER["European Terrestrial Reference Frame 1997"],MEMBER["European Terrestrial Reference Frame 2000"],MEMBER["European Terrestrial Reference Frame 2005"],MEMBER["European Terrestrial Reference Frame 2014"],MEMBER["European Terrestrial Reference Frame 2020"],MEMBER["ETRS89-DNK"],MEMBER["Estonia 1997"],MEMBER["Albanian Geodetic Reference Frame 2010"],MEMBER["ETRS89-ALB [CORS]"],MEMBER["ETRS89-AUT [2002]"],MEMBER["Belgian Reference Frame 2002"],MEMBER["Belgian Reference Frame 2011"],MEMBER["BH_ETRS89"],MEMBER["Bulgaria Geodetic System 2005"],MEMBER["Croatian Terrestrial Reference System 1996"],MEMBER["AGRS2010 (ETRF2000)"],MEMBER["CROPOS"],MEMBER["ETRF2000 Poland"],MEMBER["ETRS89/DREF91 Realization 2016"],MEMBER["ETRS89/DREF91 Realization 2025"],MEMBER["ETRS89-CZE [2007]"],MEMBER["ETRS89-ESP [REGENTE]"],MEMBER["ETRS89-ESP [ERGNSS]"],MEMBER["ETRS89-FRO [2008]"],MEMBER["ETRS89-GRC [HTRS07]"],MEMBER["ETRS89-HUN [ETRF2000]"],MEMBER["ETRS89-IRE [ETRF2000]"],MEMBER["ETRS89-MKD [EUREF-MAK2010]"],MEMBER["ETRS89-NOR [EUREF89]"],MEMBER["ETRS89-PRT [1995]"],MEMBER["ETRS89-ROU [ETRF2000]"],MEMBER["ETRS89-SVK [SKTRF09]"],MEMBER["ETRS89-SVK [SKTRF2022]"],MEMBER["EUREF-FIN"],MEMBER["Istituto Geografico Militaire 1995"],MEMBER["Kosovo Reference System 2001"],MEMBER["Latvian geodetic coordinate system 1992"],MEMBER["Latvian coordinate system 2020"],MEMBER["Lithuania 1994 (ETRS89)"],MEMBER["MOLDREF99"],MEMBER["OSNet v2009"],MEMBER["Reseau Geodesique Francais 1993 v1"],MEMBER["Reseau Geodesique Francais 1993 v2"],MEMBER["Reseau Geodesique Francais 1993 v2b"],MEMBER["Rete Dinamica Nazionale 2008"],MEMBER["Serbian Reference Network 1998"],MEMBER["Serbian Spatial Reference System 2000"],MEMBER["Slovenia Geodetic Datum 1996"],MEMBER["SWEREF 99"],MEMBER["Swiss Terrestrial Reference Frame 1995"],ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]],ENSEMBLEACCURACY[0.1]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4258]],CONVERSION["Norway TM zone 27",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",27.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",1,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",100000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",1000000,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["northing (N)",north,ORDER[1],LENGTHUNIT["metre",1]],AXIS["easting (E)",east,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering survey."],AREA["Norway - onshore - between 27°E and 28°E."],BBOX[69.9,27,71.19,28.01]],ID["EPSG",4877]]],TARGETCRS[GEOGCRS["EWR3-IRF",DATUM["EWR3 Intermediate Reference Frame",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic latitude (Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic longitude (Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],USAGE[SCOPE["Engineering survey and topographic mapping for railway applications."],AREA["United Kingdom (UK) - on or related to the East West Rail (Phases 2 and 3) route from Oxford to Cambridge via Bicester, Bletchley and Bedford, including the route from Claydon Junction to Aylesbury and Princes Risborough."],BBOX[51.7,-1.43,52.33,0.27]],ID["EPSG",10849],REMARK["Intermediate CRS created in 2024 to assist the emulation of the ETRS89 / EWR3 SnakeGrid projected CRS through transformation ETRS89-GBR [OSNet v2009] to EWR3-IRF (1) (code 10850) used in conjunction with the EWR3-TM map projection (code 9765). The EWR3 SnakeGrid is an extension of the EWR2 SnakeGrid, and between Oxford and Bedford the two grids are identical. "]]],ABRIDGEDTRANSFORMATION["ETRS89-GBR [OSNet v2009] to EWR3-IRF (1)",METHOD["NTv2",ID["EPSG",9615]],PARAMETERFILE["Latitude and longitude difference file","TN15-ETRS89-to-EWR3-IRF.gsb"],USAGE[SCOPE["Engineering survey and topographic mapping for railway applications."],AREA["United Kingdom (UK) - on or related to the East West Rail (Phases 2 and 3) route from Oxford to Cambridge via Bicester, Bletchley and Bedford, including the route from Claydon Junction to Aylesbury and Princes Risborough."],BBOX[51.7,-1.43,52.33,0.27]],ID["EPSG",10850],REMARK["In conjunction with the EWR3-TM map projection (code 9765) applied to EWR3-IRF (code 10849), emulates the EWR3 Snake projection. Applied to ETRS89 (as realized through the OSNet v2009 CORS) defines EWR3-IRF hence is errorless. In 2024 the EWR2 Grid (ETRS89 / EWR2 SnakeGrid) was extended eastwards as the EWR3 Grid (ETRS89 / EWR3 SnakeGrid). To the west of Bedford the EWR2 Grid is an exact subset of the EWR3 Grid; over this extent the EWR3 Grid replaces the EWR2 Grid. The EWR2 emulation file TN15-ETRS89-to-EWR2-IRF.gsb (CT code 9764) is a subset of this EWR3 emulation file TN15-ETRS89-to-EWR3-IRF.gsb; west of Bedford the content of the two files is identical."]]]