EPSG:2294

ATS77 / MTM Nova Scotia zone 4

Selected transformation

Method: NTv2

Grid Files: NS778301.gsb

Remarks: Parameter file is from ATS77 to NAD83(CSRS)v3 (3) (code 9235) assuming that NAD83(CSRS)v3 is equivalent to WGS 84 within the accuracy of the transformation.

Information source: OGP

Revision date: 2021-09-23

Attributes

Unit: metre

Geodetic CRS: ATS77

Datum: Average Terrestrial System 1977

Ellipsoid: Average Terrestrial System 1977

Prime meridian: Greenwich

Data source: EPSG

Information source: Geomatics Centre; Nova Scotia Ministry of Housing and Municipal Affairs.

Revision date: 1997-11-13

Scope: Engineering survey, topographic mapping.

Remarks: In use from 1979. To be phased out in late 1990's.

Area of use: Canada - Nova Scotia - east of 63°W.

Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.

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Definition: Well Known Text (WKT)

PROJCS["ATS77 / MTM Nova Scotia zone 4",
    GEOGCS["ATS77",
        DATUM["Average_Terrestrial_System_1977",
            SPHEROID["Average Terrestrial System 1977",6378135,298.257],
            EXTENSION["PROJ4_GRIDS","NS778301.gsb"]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4122"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-61.5],
    PARAMETER["scale_factor",0.9999],
    PARAMETER["false_easting",4500000],
    PARAMETER["false_northing",0],
    UNIT["metre",1],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","2294"]]

Definition: ESRI WKT

PROJCS["ATS_1977_MTM_4_Nova_Scotia",GEOGCS["GCS_ATS_1977",DATUM["D_ATS_1977",SPHEROID["ATS_1977",6378135.0,298.257],EXTENSION["PROJ4_GRIDS","NS778301.gsb"]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",4500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-61.5],PARAMETER["Scale_Factor",0.9999],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=-61.5 +k=0.9999 +x_0=4500000 +y_0=0 +a=6378135 +rf=298.257 +nadgrids=NS778301.gsb +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:2294","+proj=tmerc +lat_0=0 +lon_0=-61.5 +k=0.9999 +x_0=4500000 +y_0=0 +a=6378135 +rf=298.257 +nadgrids=NS778301.gsb +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "ATS77 / MTM Nova Scotia zone 4",
        "base_crs": {
            "name": "ATS77",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Average Terrestrial System 1977",
                "ellipsoid": {
                    "name": "Average Terrestrial System 1977",
                    "semi_major_axis": 6378135,
                    "inverse_flattening": 298.257
                }
            },
            "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": 4122
            }
        },
        "conversion": {
            "name": "MTM Nova Scotia zone 4",
            "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": -61.5,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8802
                    }
                },
                {
                    "name": "Scale factor at natural origin",
                    "value": 0.9999,
                    "unit": "unity",
                    "id": {
                        "authority": "EPSG",
                        "code": 8805
                    }
                },
                {
                    "name": "False easting",
                    "value": 4500000,
                    "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": 2294
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)"
                },
                {
                    "name": "World Geodetic System 1984 (G730)"
                },
                {
                    "name": "World Geodetic System 1984 (G873)"
                },
                {
                    "name": "World Geodetic System 1984 (G1150)"
                },
                {
                    "name": "World Geodetic System 1984 (G1674)"
                },
                {
                    "name": "World Geodetic System 1984 (G1762)"
                },
                {
                    "name": "World Geodetic System 1984 (G2139)"
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0"
        },
        "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": 4326
        }
    },
    "transformation": {
        "name": "ATS77 to WGS 84 (3)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "NS778301.gsb"
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 1851
        }
    }
}

Definition: GeoServer

2294=PROJCS["ATS77 / MTM Nova Scotia zone 4",GEOGCS["ATS77",DATUM["Average_Terrestrial_System_1977",SPHEROID["Average Terrestrial System 1977",6378135,298.257],EXTENSION["PROJ4_GRIDS","NS778301.gsb"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4122"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-61.5],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",4500000],PARAMETER["false_northing",0],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2294"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=-61.5"
	"k=0.9999"
	"x_0=4500000"
	"y_0=0"
	"a=6378135"
	"rf=298.257"
	"nadgrids=NS778301.gsb"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=tmerc +lat_0=0 +lon_0=-61.5 +k=0.9999 +x_0=4500000 +y_0=0 +a=6378135 +rf=298.257 +nadgrids=NS778301.gsb +units=m +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=0 +lon_0=-61.5 +k=0.9999 +x_0=4500000 +y_0=0 +a=6378135 +rf=298.257 +nadgrids=NS778301.gsb +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 2294, 'EPSG', 2294, '+proj=tmerc +lat_0=0 +lon_0=-61.5 +k=0.9999 +x_0=4500000 +y_0=0 +a=6378135 +rf=298.257 +nadgrids=NS778301.gsb +units=m +no_defs +type=crs', 'PROJCS["ATS77 / MTM Nova Scotia zone 4",GEOGCS["ATS77",DATUM["Average_Terrestrial_System_1977",SPHEROID["Average Terrestrial System 1977",6378135,298.257],EXTENSION["PROJ4_GRIDS","NS778301.gsb"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4122"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-61.5],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",4500000],PARAMETER["false_northing",0],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2294"]]');

Definition: OGC WKT

PROJCS["ATS77 / MTM Nova Scotia zone 4",GEOGCS["ATS77",DATUM["Average_Terrestrial_System_1977",SPHEROID["Average Terrestrial System 1977",6378135,298.257],EXTENSION["PROJ4_GRIDS","NS778301.gsb"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4122"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-61.5],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",4500000],PARAMETER["false_northing",0],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2294"]]

Definition: OGC WKT 2 (2019)

BOUNDCRS[SOURCECRS[PROJCRS["ATS77 / MTM Nova Scotia zone 4",BASEGEOGCRS["ATS77",DATUM["Average Terrestrial System 1977",ELLIPSOID["Average Terrestrial System 1977",6378135,298.257,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4122]],CONVERSION["MTM Nova Scotia zone 4",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",-61.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.9999,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",4500000,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]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["Canada - Nova Scotia - east of 63°W."],BBOX[44.64,-63,47.08,-59.73]],ID["EPSG",2294]]],TARGETCRS[GEOGCRS["WGS 84",ENSEMBLE["World Geodetic System 1984 ensemble",MEMBER["World Geodetic System 1984 (Transit)"],MEMBER["World Geodetic System 1984 (G730)"],MEMBER["World Geodetic System 1984 (G873)"],MEMBER["World Geodetic System 1984 (G1150)"],MEMBER["World Geodetic System 1984 (G1674)"],MEMBER["World Geodetic System 1984 (G1762)"],MEMBER["World Geodetic System 1984 (G2139)"],ELLIPSOID["WGS 84",6378137,298.257223563,LENGTHUNIT["metre",1]],ENSEMBLEACCURACY[2.0]],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["Horizontal component of 3D system."],AREA["World."],BBOX[-90,-180,90,180]],ID["EPSG",4326]]],ABRIDGEDTRANSFORMATION["ATS77 to WGS 84 (3)",METHOD["NTv2",ID["EPSG",9615]],PARAMETERFILE["Latitude and longitude difference file","NS778301.gsb"],USAGE[SCOPE["(null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences."],AREA["Canada - Nova Scotia onshore."],BBOX[43.41,-66.28,47.08,-59.73]],ID["EPSG",1851],REMARK["Parameter file is from ATS77 to NAD83(CSRS)v3 (3) (code 9235) assuming that NAD83(CSRS)v3 is equivalent to WGS 84 within the accuracy of the transformation."]]]