Geodetic CRS: Nahrwan 1934
Datum: Nahrwan 1934
Ellipsoid: Clarke 1880 (RGS)
Prime meridian: Greenwich
Data source: EPSG
Information source: Ministry of Oil.
Revision date: 2015-02-06
Scope: Approximate transformation of seismic data acquired before 1985 to CRS used post 1985.
Remarks: May be emulated using geocentric translations from Nahrwan 1934 to Karbala 1979 of dX=-347, dY=180 and dZ=156m. Other maps give different values - see tfm code 7010.
Method: Cartesian Grid Offsets
Area of use: Iraq - north of UTM 4010000mN (approximately 36°13'N) and east of UTM 400000mE (approximatrely 43°56'E).
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["Nahrwan 1934 / UTM zone 38N to Karbala 1979 / UTM zone 38N (4)", VERSION["MoO-Irq map A sheet 3"], SOURCECRS[ PROJCRS["Nahrwan 1934 / UTM zone 38N", BASEGEOGCRS["Nahrwan 1934", DATUM["Nahrwan 1934", ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4744]], CONVERSION["UTM zone 38N", 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",0.9996, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",500000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], ID["EPSG",7006]]], TARGETCRS[ PROJCRS["Karbala 1979 / UTM zone 38N", BASEGEOGCRS["Karbala 1979", DATUM["Karbala 1979", ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4743]], CONVERSION["UTM zone 38N", 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",0.9996, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",500000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], ID["EPSG",3392]]], METHOD["Cartesian Grid Offsets", ID["EPSG",9656]], PARAMETER["Easting offset",372, LENGTHUNIT["metre",1], ID["EPSG",8728]], PARAMETER["Northing offset",196, LENGTHUNIT["metre",1], ID["EPSG",8729]], OPERATIONACCURACY[5.0], USAGE[ SCOPE["Approximate transformation of seismic data acquired before 1985 to CRS used post 1985."], AREA["Iraq - north of UTM 4010000mN (approximately 36°13'N) and east of UTM 400000mE (approximatrely 43°56'E)."], BBOX[36.22,43.87,37.33,45.33]], ID["EPSG",7011], REMARK["May be emulated using geocentric translations from Nahrwan 1934 to Karbala 1979 of dX=-347, dY=180 and dZ=156m. Other maps give different values - see tfm code 7010."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "Nahrwan 1934 / UTM zone 38N to Karbala 1979 / UTM zone 38N (4)", "source_crs": { "type": "ProjectedCRS", "name": "Nahrwan 1934 / UTM zone 38N", "base_crs": { "name": "Nahrwan 1934", "datum": { "type": "GeodeticReferenceFrame", "name": "Nahrwan 1934", "ellipsoid": { "name": "Clarke 1880 (RGS)", "semi_major_axis": 6378249.145, "inverse_flattening": 293.465 } }, "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": 4744 } }, "conversion": { "name": "UTM zone 38N", "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": 0.9996, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 500000, "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": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 7006 } }, "target_crs": { "type": "ProjectedCRS", "name": "Karbala 1979 / UTM zone 38N", "base_crs": { "name": "Karbala 1979", "datum": { "type": "GeodeticReferenceFrame", "name": "Karbala 1979", "ellipsoid": { "name": "Clarke 1880 (RGS)", "semi_major_axis": 6378249.145, "inverse_flattening": 293.465 } }, "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": 4743 } }, "conversion": { "name": "UTM zone 38N", "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": 0.9996, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 500000, "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": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 3392 } }, "method": { "name": "Cartesian Grid Offsets", "id": { "authority": "EPSG", "code": 9656 } }, "parameters": [ { "name": "Easting offset", "value": 372, "unit": "metre", "id": { "authority": "EPSG", "code": 8728 } }, { "name": "Northing offset", "value": 196, "unit": "metre", "id": { "authority": "EPSG", "code": 8729 } } ], "accuracy": "5.0", "scope": "Approximate transformation of seismic data acquired before 1985 to CRS used post 1985.", "area": "Iraq - north of UTM 4010000mN (approximately 36°13'N) and east of UTM 400000mE (approximatrely 43°56'E).", "bbox": { "south_latitude": 36.22, "west_longitude": 43.87, "north_latitude": 37.33, "east_longitude": 45.33 }, "id": { "authority": "EPSG", "code": 7011 }, "remarks": "May be emulated using geocentric translations from Nahrwan 1934 to Karbala 1979 of dX=-347, dY=180 and dZ=156m. Other maps give different values - see tfm code 7010." }
Definition: Mapnik
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