Reversible polynomial of degree 4
Latitude differences from ED50 to ED87 in decimal degrees given by coefficients A0 through A14 where U=(latitude - 55) degrees and V=longitude in decimal degrees. Longitude differences given through coefficients B0 through B14.
Norwegian Mapping Authority publication 1990:1.
2018-05-12
Cadastre, topographic mapping (large scale).
Also found with truncated false easting - see ED50 / TM45 (code 2325).
Türkiye (Turkey) - east of 43°30'E.
Cartesian 2D CS. Axes: northing, easting (X,Y). Orientations: north, east. UoM: m.
13018248.26 7085744.01
12139920.08 6232113.11
13775007.12 7899169.22
-5.05 51.03
10.86 62.01
Definition: OGC Well Known Text
PROJCS["ED50 / 3-degree Gauss-Kruger zone 15", GEOGCS["ED50", DATUM["European_Datum_1950", SPHEROID["International 1924",6378388,297, AUTHORITY["EPSG","7022"]], AUTHORITY["EPSG","6230"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4230"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",0], PARAMETER["central_meridian",45], PARAMETER["scale_factor",1], PARAMETER["false_easting",15500000], PARAMETER["false_northing",0], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AUTHORITY["EPSG","2212"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["ED50 / 3-degree Gauss-Kruger zone 15", BASEGEOGCRS["ED50", DATUM["European Datum 1950", ELLIPSOID["International 1924",6378388,297, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4230]], CONVERSION["3-degree Gauss-Kruger zone 15", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",45, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",1, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",15500000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["northing (X)",north, ORDER[1], LENGTHUNIT["metre",1]], AXIS["easting (Y)",east, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Cadastre, topographic mapping (large scale)."], AREA["Türkiye (Turkey) - east of 43°30'E."], BBOX[36.97,43.5,41.02,44.83]], ID["EPSG",2212]]
Definition: ESRI Well Known Text
PROJCS["ED_1950_3_Degree_GK_Zone_15", GEOGCS["GCS_European_1950", DATUM["D_European_1950", SPHEROID["International_1924",6378388.0,297.0]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Gauss_Kruger"], PARAMETER["False_Easting",15500000.0], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",45.0], PARAMETER["Scale_Factor",1.0], PARAMETER["Latitude_Of_Origin",0.0], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "ED50 / 3-degree Gauss-Kruger zone 15", "base_crs": { "name": "ED50", "datum": { "type": "GeodeticReferenceFrame", "name": "European Datum 1950", "ellipsoid": { "name": "International 1924", "semi_major_axis": 6378388, "inverse_flattening": 297 } }, "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": 4230 } }, "conversion": { "name": "3-degree Gauss-Kruger zone 15", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 0, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 45, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 15500000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Northing", "abbreviation": "X", "direction": "north", "unit": "metre" }, { "name": "Easting", "abbreviation": "Y", "direction": "east", "unit": "metre" } ] }, "scope": "Cadastre, topographic mapping (large scale).", "area": "Türkiye (Turkey) - east of 43°30'E.", "bbox": { "south_latitude": 36.97, "west_longitude": 43.5, "north_latitude": 41.02, "east_longitude": 44.83 }, "id": { "authority": "EPSG", "code": 2212 } }
Definition: GeoServer
2212=PROJCS["ED50 / 3-degree Gauss-Kruger zone 15",GEOGCS["ED50",DATUM["European_Datum_1950",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6230"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4230"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",45],PARAMETER["scale_factor",1],PARAMETER["false_easting",15500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2212"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=0 +lon_0=45 +k=1 +x_0=15500000 +y_0=0 +ellps=intl +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=0 +lon_0=45 +k=1 +x_0=15500000 +y_0=0 +ellps=intl +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 2212, 'EPSG', 2212, '+proj=tmerc +lat_0=0 +lon_0=45 +k=1 +x_0=15500000 +y_0=0 +ellps=intl +units=m +no_defs +type=crs', 'PROJCS["ED50 / 3-degree Gauss-Kruger zone 15",GEOGCS["ED50",DATUM["European_Datum_1950",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6230"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4230"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",45],PARAMETER["scale_factor",1],PARAMETER["false_easting",15500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2212"]]');