TN15-ETRS89-to-SMITB20-IRF.gsb
In conjunction with the SMITB20-TM map projection (code 10274) applied to SMITB20-IRF (code 10272), emulates the SMITB20 Snake projection. Applied to ETRS89 (as realized through the OSNet v2009) defines SMITB20-IRF hence is errorless.
Network Rail, UK.
2023-01-17
metre
European Terrestrial Reference System 1989 ensemble
EPSG
A. Annoni et al., “Map Projections for Europe”, European Commission Joint Research Centre, reference EUR 20120 EN, 2003.
2021-11-04
Statistical analysis.
Use ETRS89 / LCC for conformal mapping at 1:500,000 scale or smaller or ETRS89 / UTM for conformal mapping at scales larger than 1:500,000. Use formally limited to ETRS89 area of continental Europe but extended for pan-European analysis at small scales.
Cartesian 2D CS. Axes: northing, easting (Y,X). Orientations: north, east. UoM: m.
3350235.68 3163207.85
3330844.59 3148949.24
3369567.57 3177513.91
-4.1 50.65
-3.6 50.85
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["ETRS89-extended / LAEA Europe", 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"], ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ENSEMBLEACCURACY[0.1]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4258]], CONVERSION["Europe Equal Area 2001", METHOD["Lambert Azimuthal Equal Area", ID["EPSG",9820]], PARAMETER["Latitude of natural origin",52, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",10, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["False easting",4321000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",3210000, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["northing (Y)",north, ORDER[1], LENGTHUNIT["metre",1]], AXIS["easting (X)",east, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Statistical analysis."], AREA["Europe - European Union (EU) countries and candidates. Europe - onshore and offshore: Albania; Andorra; Austria; Belgium; Bosnia and Herzegovina; Bulgaria; Croatia; Cyprus; Czechia; Denmark; Estonia; Faroe Islands; Finland; France; Germany; Gibraltar; Greece; Hungary; Iceland; Ireland; Italy; Kosovo; Latvia; Liechtenstein; Lithuania; Luxembourg; Malta; Monaco; Montenegro; Netherlands; North Macedonia; Norway including Svalbard and Jan Mayen; Poland; Portugal including Madeira and Azores; Romania; San Marino; Serbia; Slovakia; Slovenia; Spain including Canary Islands; Sweden; Switzerland; Türkiye (Turkey); United Kingdom (UK) including Channel Islands and Isle of Man; Vatican City State."], BBOX[24.6,-35.58,84.73,44.83]], ID["EPSG",3035]]], TARGETCRS[ GEOGCRS["SMITB20-IRF", DATUM["SMITB20 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 rail route from Okehampton to Penstone."], BBOX[50.65,-4.1,50.85,-3.6]], ID["EPSG",10272]]], ABRIDGEDTRANSFORMATION["ETRS89 to SMITB20-IRF (1)", METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","TN15-ETRS89-to-SMITB20-IRF.gsb"], USAGE[ SCOPE["Engineering survey and topographic mapping for railway applications."], AREA["United Kingdom (UK) - on or related to the rail route from Okehampton to Penstone."], BBOX[50.65,-4.1,50.85,-3.6]], ID["EPSG",10273], REMARK["In conjunction with the SMITB20-TM map projection (code 10274) applied to SMITB20-IRF (code 10272), emulates the SMITB20 Snake projection. Applied to ETRS89 (as realized through the OSNet v2009) defines SMITB20-IRF hence is errorless."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "ETRS89-extended / LAEA Europe", "base_crs": { "name": "ETRS89", "datum_ensemble": { "name": "European Terrestrial Reference System 1989 ensemble", "members": [ { "name": "European Terrestrial Reference Frame 1989", "id": { "authority": "EPSG", "code": 1178 } }, { "name": "European Terrestrial Reference Frame 1990", "id": { "authority": "EPSG", "code": 1179 } }, { "name": "European Terrestrial Reference Frame 1991", "id": { "authority": "EPSG", "code": 1180 } }, { "name": "European Terrestrial Reference Frame 1992", "id": { "authority": "EPSG", "code": 1181 } }, { "name": "European Terrestrial Reference Frame 1993", "id": { "authority": "EPSG", "code": 1182 } }, { "name": "European Terrestrial Reference Frame 1994", "id": { "authority": "EPSG", "code": 1183 } }, { "name": "European Terrestrial Reference Frame 1996", "id": { "authority": "EPSG", "code": 1184 } }, { "name": "European Terrestrial Reference Frame 1997", "id": { "authority": "EPSG", "code": 1185 } }, { "name": "European Terrestrial Reference Frame 2000", "id": { "authority": "EPSG", "code": 1186 } }, { "name": "European Terrestrial Reference Frame 2005", "id": { "authority": "EPSG", "code": 1204 } }, { "name": "European Terrestrial Reference Frame 2014", "id": { "authority": "EPSG", "code": 1206 } } ], "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 }, "accuracy": "0.1", "id": { "authority": "EPSG", "code": 6258 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4258 } }, "conversion": { "name": "Europe Equal Area 2001", "method": { "name": "Lambert Azimuthal Equal Area", "id": { "authority": "EPSG", "code": 9820 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 52, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 10, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "False easting", "value": 4321000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 3210000, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": "metre" }, { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 3035 } }, "target_crs": { "type": "GeographicCRS", "name": "SMITB20-IRF", "datum": { "type": "GeodeticReferenceFrame", "name": "SMITB20 Intermediate Reference Frame", "ellipsoid": { "name": "GRS 1980", "semi_major_axis": 6378137, "inverse_flattening": 298.257222101 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 10272 } }, "transformation": { "name": "ETRS89 to SMITB20-IRF (1)", "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "TN15-ETRS89-to-SMITB20-IRF.gsb", "id": { "authority": "EPSG", "code": 8656 } } ], "id": { "authority": "EPSG", "code": 10273 } } }
Definition: Mapnik
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