EPSG:7029

Nahrwan 1934 / UTM zone 38N to Karbala 1979 / UTM zone 38N (22)

Attributes

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=-304, dY=184 and dZ=166m. Other maps give different values - see tfm code 7026.

Method: Cartesian Grid Offsets

Area of use: Iraq - between UTM 3290000mN and 3470000mN (approximately 29°47'N and 31°21'N) and between 42°E and UTM 400000mE (approximately 43°56'E).

Description: (0,)

Covered area powered by MapTiler MapTiler logo
SimpleMap
Iraq - between UTM 3290000mN and 3470000mN (approximately 29°47'N and 31°21'N) and between 42°E and UTM 400000mE (approximately 43°56'E).

MapTiler banner

Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["Nahrwan 1934 / UTM zone 38N to Karbala 1979 / UTM zone 38N (22)",
    VERSION["MoO-Irq map A sheet 19"],
    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",345,
        LENGTHUNIT["metre",1],
        ID["EPSG",8728]],
    PARAMETER["Northing offset",186,
        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 - between UTM 3290000mN and 3470000mN (approximately 29°47'N and 31°21'N) and between 42°E and UTM 400000mE (approximately 43°56'E)."],
        BBOX[29.75,42,31.37,43.97]],
    ID["EPSG",7029],
    REMARK["May be emulated using geocentric translations from Nahrwan 1934 to Karbala 1979 of dX=-304, dY=184 and dZ=166m. Other maps give different values - see tfm code 7026."]]

Definition: PROJ.4

+proj=affine +xoff=345 +yoff=186

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:7029","+proj=affine +xoff=345 +yoff=186");

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 (22)",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "Nahrwan 1934 / UTM zone 38N",
        "base_crs": {
            "type": "GeographicCRS",
            "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
            },
            "remarks": "In Iran, replaced by FD58. In Iraq, replaced by Karbala 1979."
        },
        "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": {
            "type": "GeographicCRS",
            "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
            },
            "remarks": "Geodetic network established by Polservice consortium. Replaces Nahrwan 1934 (CRS code 4744). Replaced by IGRS (CRS code 3889). At time of record population, information regarding usage within oil sector is not available."
        },
        "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": 345,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8728
            }
        },
        {
            "name": "Northing offset",
            "value": 186,
            "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 - between UTM 3290000mN and 3470000mN (approximately 29°47'N and 31°21'N) and between 42°E and UTM 400000mE (approximately 43°56'E).",
    "bbox": {
        "south_latitude": 29.75,
        "west_longitude": 42,
        "north_latitude": 31.37,
        "east_longitude": 43.97
    },
    "id": {
        "authority": "EPSG",
        "code": 7029
    },
    "remarks": "May be emulated using geocentric translations from Nahrwan 1934 to Karbala 1979 of dX=-304, dY=184 and dZ=166m. Other maps give different values - see tfm code 7026."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=affine"
	"xoff=345"
	"yoff=186"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=affine +xoff=345 +yoff=186">
	<Layer srs="+proj=affine +xoff=345 +yoff=186">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 7029, 'EPSG', 7029, '+proj=affine +xoff=345 +yoff=186', 'None');