EPSG:6623

NAD83 / Quebec Albers

Transform Get position on a map

Available transformations
to EPSG:4326
EPSG:4326 - WGS 84

Selected transformation

Method: NTv2

Grid Files: NA83SCRS.GSB

Remarks: Parameter file is from NAD83 to NAD83(CSRS)v2 (1) (code 9241) assuming that NAD83(CSRS)v2 is equivalent to WGS 84 within the accuracy of the transformation. Also distributed with file name NAD83-98.gsb.

Information source: OGP

Revision date: 2021-09-10

Attributes

Unit: metre

Geodetic CRS: NAD83

Datum: North American Datum 1983

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Direction générale de l’information géographique; Ministère des Ressources Naturelles; Quebec.

Revision date: 2013-12-06

Scope: Topographic mapping (medium and small scale).

Remarks: For applications with an accuracy of better than 2 metres, replaced by NAD83(CSRS) / Quebec Albers (CRS code 6624).

Area of use: Canada - Quebec.

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

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SimpleMap

Center coordinates
1635.06 1094272.54

Projected bounds:
-893137.61 109682.43
897039.5 2124843.87

WGS84 bounds:
-79.85 44.99
-57.1 62.62

Canada - Quebec.
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Definition: OGC Well Known Text

PROJCS["NAD83 / Quebec Albers",
    GEOGCS["NAD83",
        DATUM["North_American_Datum_1983",
            SPHEROID["GRS 1980",6378137,298.257222101],
            EXTENSION["PROJ4_GRIDS","NA83SCRS.GSB"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4269"]],
    PROJECTION["Albers_Conic_Equal_Area"],
    PARAMETER["latitude_of_center",44],
    PARAMETER["longitude_of_center",-68.5],
    PARAMETER["standard_parallel_1",60],
    PARAMETER["standard_parallel_2",46],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","6623"]]

Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        PROJCRS["NAD83 / Quebec Albers",
            BASEGEOGCRS["NAD83",
                DATUM["North American Datum 1983",
                    ELLIPSOID["GRS 1980",6378137,298.257222101,
                        LENGTHUNIT["metre",1]]],
                PRIMEM["Greenwich",0,
                    ANGLEUNIT["degree",0.0174532925199433]],
                ID["EPSG",4269]],
            CONVERSION["Quebec Albers Projection",
                METHOD["Albers Equal Area",
                    ID["EPSG",9822]],
                PARAMETER["Latitude of false origin",44,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8821]],
                PARAMETER["Longitude of false origin",-68.5,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8822]],
                PARAMETER["Latitude of 1st standard parallel",60,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8823]],
                PARAMETER["Latitude of 2nd standard parallel",46,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8824]],
                PARAMETER["Easting at false origin",0,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8826]],
                PARAMETER["Northing at false origin",0,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8827]]],
            CS[Cartesian,2],
                AXIS["easting (X)",east,
                    ORDER[1],
                    LENGTHUNIT["metre",1]],
                AXIS["northing (Y)",north,
                    ORDER[2],
                    LENGTHUNIT["metre",1]],
            USAGE[
                SCOPE["Topographic mapping (medium and small scale)."],
                AREA["Canada - Quebec."],
                BBOX[44.99,-79.85,62.62,-57.1]],
            ID["EPSG",6623]]],
    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["NAD83 to WGS 84 (6)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","NA83SCRS.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 - Quebec."],
            BBOX[44.99,-79.85,62.62,-57.1]],
        ID["EPSG",1696],
        REMARK["Parameter file is from NAD83 to NAD83(CSRS)v2 (1) (code 9241) assuming that NAD83(CSRS)v2 is equivalent to WGS 84 within the accuracy of the transformation. Also distributed with file name NAD83-98.gsb."]]]

Definition: ESRI Well Known Text

PROJCS["NAD_1983_Quebec_Albers",
    GEOGCS["GCS_North_American_1983",
        DATUM["D_North_American_1983",
            SPHEROID["GRS_1980",6378137.0,298.257222101],
            EXTENSION["PROJ4_GRIDS","NA83SCRS.GSB"]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Albers"],
    PARAMETER["False_Easting",0.0],
    PARAMETER["False_Northing",0.0],
    PARAMETER["Central_Meridian",-68.5],
    PARAMETER["Standard_Parallel_1",60.0],
    PARAMETER["Standard_Parallel_2",46.0],
    PARAMETER["Latitude_Of_Origin",44.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=aea +lat_0=44 +lon_0=-68.5 +lat_1=60 +lat_2=46 +x_0=0 +y_0=0 +ellps=GRS80 +nadgrids=NA83SCRS.GSB +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:6623","+proj=aea +lat_0=44 +lon_0=-68.5 +lat_1=60 +lat_2=46 +x_0=0 +y_0=0 +ellps=GRS80 +nadgrids=NA83SCRS.GSB +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "NAD83 / Quebec Albers",
        "base_crs": {
            "name": "NAD83",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "North American Datum 1983",
                "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": 4269
            }
        },
        "conversion": {
            "name": "Quebec Albers Projection",
            "method": {
                "name": "Albers Equal Area",
                "id": {
                    "authority": "EPSG",
                    "code": 9822
                }
            },
            "parameters": [
                {
                    "name": "Latitude of false origin",
                    "value": 44,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8821
                    }
                },
                {
                    "name": "Longitude of false origin",
                    "value": -68.5,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8822
                    }
                },
                {
                    "name": "Latitude of 1st standard parallel",
                    "value": 60,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8823
                    }
                },
                {
                    "name": "Latitude of 2nd standard parallel",
                    "value": 46,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8824
                    }
                },
                {
                    "name": "Easting at false origin",
                    "value": 0,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8826
                    }
                },
                {
                    "name": "Northing at false origin",
                    "value": 0,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8827
                    }
                }
            ]
        },
        "coordinate_system": {
            "subtype": "Cartesian",
            "axis": [
                {
                    "name": "Easting",
                    "abbreviation": "X",
                    "direction": "east",
                    "unit": "metre"
                },
                {
                    "name": "Northing",
                    "abbreviation": "Y",
                    "direction": "north",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 6623
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1166
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G730)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1152
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G873)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1153
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1150)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1154
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1674)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1155
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1762)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1156
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G2139)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1309
                    }
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0",
            "id": {
                "authority": "EPSG",
                "code": 6326
            }
        },
        "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": "NAD83 to WGS 84 (6)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "NA83SCRS.GSB",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 1696
        }
    }
}

Definition: GeoServer

6623=PROJCS["NAD83 / Quebec Albers",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],EXTENSION["PROJ4_GRIDS","NA83SCRS.GSB"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Albers_Conic_Equal_Area"],PARAMETER["latitude_of_center",44],PARAMETER["longitude_of_center",-68.5],PARAMETER["standard_parallel_1",60],PARAMETER["standard_parallel_2",46],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6623"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=aea"
	"lat_0=44"
	"lon_0=-68.5"
	"lat_1=60"
	"lat_2=46"
	"x_0=0"
	"y_0=0"
	"ellps=GRS80"
	"nadgrids=NA83SCRS.GSB"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=aea +lat_0=44 +lon_0=-68.5 +lat_1=60 +lat_2=46 +x_0=0 +y_0=0 +ellps=GRS80 +nadgrids=NA83SCRS.GSB +units=m +no_defs +type=crs">
	<Layer srs="+proj=aea +lat_0=44 +lon_0=-68.5 +lat_1=60 +lat_2=46 +x_0=0 +y_0=0 +ellps=GRS80 +nadgrids=NA83SCRS.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 ( 6623, 'EPSG', 6623, '+proj=aea +lat_0=44 +lon_0=-68.5 +lat_1=60 +lat_2=46 +x_0=0 +y_0=0 +ellps=GRS80 +nadgrids=NA83SCRS.GSB +units=m +no_defs +type=crs', 'PROJCS["NAD83 / Quebec Albers",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],EXTENSION["PROJ4_GRIDS","NA83SCRS.GSB"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Albers_Conic_Equal_Area"],PARAMETER["latitude_of_center",44],PARAMETER["longitude_of_center",-68.5],PARAMETER["standard_parallel_1",60],PARAMETER["standard_parallel_2",46],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6623"]]');