EPSG:3174

NAD83 / Great Lakes Albers

Available transformations
to EPSG:4326

Selected transformation

Method: Geocentric translations (geog2D domain)

Remarks: Derived at 354 stations. Accuracy 2m in each axis.

Information source: U.S. Defense Mapping Agency TR8350.2 revision of August 1993.

Revision date: 2020-03-14

Attributes

Unit: metre

Geodetic CRS: NAD83

Datum: North American Datum 1983

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Great Lakes Fisheries Commission

Revision date: 2007-01-19

MapTiler banner

Definition: Well Known Text (WKT)

PROJCS["NAD83 / Great Lakes Albers",
    GEOGCS["NAD83",
        DATUM["North_American_Datum_1983",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[0,0,0,0,0,0,0]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4269"]],
    PROJECTION["Albers_Conic_Equal_Area"],
    PARAMETER["latitude_of_center",45.568977],
    PARAMETER["longitude_of_center",-84.455955],
    PARAMETER["standard_parallel_1",42.122774],
    PARAMETER["standard_parallel_2",49.01518],
    PARAMETER["false_easting",1000000],
    PARAMETER["false_northing",1000000],
    UNIT["metre",1],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","3174"]]

Definition: ESRI WKT

PROJCS["NAD_1983_Great_Lakes_Basin_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",1000000.0],PARAMETER["False_Northing",1000000.0],PARAMETER["Central_Meridian",-84.455955],PARAMETER["Standard_Parallel_1",42.122774],PARAMETER["Standard_Parallel_2",49.01518],PARAMETER["Latitude_Of_Origin",45.568977],UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=aea +lat_0=45.568977 +lon_0=-84.455955 +lat_1=42.122774 +lat_2=49.01518 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:3174","+proj=aea +lat_0=45.568977 +lon_0=-84.455955 +lat_1=42.122774 +lat_2=49.01518 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "NAD83 / Great Lakes 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": "Great Lakes Albers",
        "method": {
            "name": "Albers Equal Area",
            "id": {
                "authority": "EPSG",
                "code": 9822
            }
        },
        "parameters": [
            {
                "name": "Latitude of false origin",
                "value": 45.568977,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8821
                }
            },
            {
                "name": "Longitude of false origin",
                "value": -84.455955,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8822
                }
            },
            {
                "name": "Latitude of 1st standard parallel",
                "value": 42.122774,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8823
                }
            },
            {
                "name": "Latitude of 2nd standard parallel",
                "value": 49.01518,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8824
                }
            },
            {
                "name": "Easting at false origin",
                "value": 1000000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8826
                }
            },
            {
                "name": "Northing at false origin",
                "value": 1000000,
                "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"
            }
        ]
    },
    "scope": "Basin-wide mapping and analysis.",
    "area": "Canada and United States (USA) - Great Lakes basin.",
    "bbox": {
        "south_latitude": 40.99,
        "west_longitude": -93.17,
        "north_latitude": 50.74,
        "east_longitude": -74.47
    },
    "id": {
        "authority": "EPSG",
        "code": 3174
    }
}

Definition: GeoServer

3174=PROJCS["NAD83 / Great Lakes Albers",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Albers_Conic_Equal_Area"],PARAMETER["latitude_of_center",45.568977],PARAMETER["longitude_of_center",-84.455955],PARAMETER["standard_parallel_1",42.122774],PARAMETER["standard_parallel_2",49.01518],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3174"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=aea"
	"lat_0=45.568977"
	"lon_0=-84.455955"
	"lat_1=42.122774"
	"lat_2=49.01518"
	"x_0=1000000"
	"y_0=1000000"
	"ellps=GRS80"
	"towgs84=0,0,0,0,0,0,0"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=aea +lat_0=45.568977 +lon_0=-84.455955 +lat_1=42.122774 +lat_2=49.01518 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs">
	<Layer srs="+proj=aea +lat_0=45.568977 +lon_0=-84.455955 +lat_1=42.122774 +lat_2=49.01518 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 3174, 'EPSG', 3174, '+proj=aea +lat_0=45.568977 +lon_0=-84.455955 +lat_1=42.122774 +lat_2=49.01518 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["NAD83 / Great Lakes Albers",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Albers_Conic_Equal_Area"],PARAMETER["latitude_of_center",45.568977],PARAMETER["longitude_of_center",-84.455955],PARAMETER["standard_parallel_1",42.122774],PARAMETER["standard_parallel_2",49.01518],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3174"]]');

Definition: OGC WKT

PROJCS["NAD83 / Great Lakes Albers",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Albers_Conic_Equal_Area"],PARAMETER["latitude_of_center",45.568977],PARAMETER["longitude_of_center",-84.455955],PARAMETER["standard_parallel_1",42.122774],PARAMETER["standard_parallel_2",49.01518],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3174"]]

Definition: OGC WKT 2 (2019)

PROJCRS["NAD83 / Great Lakes 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["Great Lakes Albers",METHOD["Albers Equal Area",ID["EPSG",9822]],PARAMETER["Latitude of false origin",45.568977,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8821]],PARAMETER["Longitude of false origin",-84.455955,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8822]],PARAMETER["Latitude of 1st standard parallel",42.122774,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Latitude of 2nd standard parallel",49.01518,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8824]],PARAMETER["Easting at false origin",1000000,LENGTHUNIT["metre",1],ID["EPSG",8826]],PARAMETER["Northing at false origin",1000000,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["Basin-wide mapping and analysis."],AREA["Canada and United States (USA) - Great Lakes basin."],BBOX[40.99,-93.17,50.74,-74.47]],ID["EPSG",3174]]