EPSG:3083

NAD83 / Texas Centric Albers Equal Area

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

Selected transformation

Name: NAD83 to WGS 84 (8)

Remarks: The gridded difference file AB_CSRS.DAC in STEP 1 will need to be renamed to AB_CSRS.gsb to run in some software suites. Formats identical, but AB file is provincial fit only.

Information source: Geodetic Control Section; Land and Forest Svc; Alberta Environment; http://www.gov.ab.ca/env/land/dos/ or email to geoff.banham@gov.ab.ca

Revision date: 2000-10-19

Attributes

Unit: metre

Geodetic CRS: NAD83

Datum: North American Datum 1983

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Texas Natural Resources Information System, https://www.tnris.org/

Revision date: 2023-09-30

Scope: State-wide spatial data presentation requiring true area measurements.

Remarks: For applications with an accuracy of better than 1m, replaced by NAD83(HARN) / TX Albers (CRS code 3085). See also NAD83 / TWDB GM (CRS code 10481). For state-wide spatial data presentation requiring shape preservation use NAD83 / TX LC (CRS code 3082).

Area of use: United States (USA) - Texas.

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

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SimpleMap

Center coordinates
417329.73 10034039.14

Projected bounds:
-42420.5 9431581.17
825501.72 10610595.05

WGS84 bounds:
-120.0 48.99
-109.98 60.0

Canada - Alberta.
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Definition: OGC Well Known Text

PROJCS["NAD83 / Texas Centric Albers Equal Area",
    GEOGCS["NAD83",
        DATUM["North_American_Datum_1983",
            SPHEROID["GRS 1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","6269"]],
        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",18],
    PARAMETER["longitude_of_center",-100],
    PARAMETER["standard_parallel_1",27.5],
    PARAMETER["standard_parallel_2",35],
    PARAMETER["false_easting",1500000],
    PARAMETER["false_northing",6000000],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","3083"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["NAD83 / Texas Centric Albers Equal Area",
    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["Texas Centric Albers Equal Area",
        METHOD["Albers Equal Area",
            ID["EPSG",9822]],
        PARAMETER["Latitude of false origin",18,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8821]],
        PARAMETER["Longitude of false origin",-100,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8822]],
        PARAMETER["Latitude of 1st standard parallel",27.5,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8823]],
        PARAMETER["Latitude of 2nd standard parallel",35,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8824]],
        PARAMETER["Easting at false origin",1500000,
            LENGTHUNIT["metre",1],
            ID["EPSG",8826]],
        PARAMETER["Northing at false origin",6000000,
            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["State-wide spatial data presentation requiring true area measurements."],
        AREA["United States (USA) - Texas."],
        BBOX[25.83,-106.66,36.5,-93.5]],
    ID["EPSG",3083]]

Definition: ESRI Well Known Text

PROJCS["NAD_1983_Texas_Centric_Mapping_System_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",1500000.0],
    PARAMETER["False_Northing",6000000.0],
    PARAMETER["Central_Meridian",-100.0],
    PARAMETER["Standard_Parallel_1",27.5],
    PARAMETER["Standard_Parallel_2",35.0],
    PARAMETER["Latitude_Of_Origin",18.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=aea +lat_0=18 +lon_0=-100 +lat_1=27.5 +lat_2=35 +x_0=1500000 +y_0=6000000 +datum=NAD83 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:3083","+proj=aea +lat_0=18 +lon_0=-100 +lat_1=27.5 +lat_2=35 +x_0=1500000 +y_0=6000000 +datum=NAD83 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "NAD83 / Texas Centric Albers Equal Area",
    "base_crs": {
        "type": "GeographicCRS",
        "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
        },
        "remarks": "Longitude is POSITIVE EAST. The adjustment included connections to Greenland and Mexico but the system was not adopted there. For applications with an accuracy of better than 1m replaced by NAD83(HARN) in the US and PRVI and by NAD83(CSRS) in Canada."
    },
    "conversion": {
        "name": "Texas Centric Albers Equal Area",
        "method": {
            "name": "Albers Equal Area",
            "id": {
                "authority": "EPSG",
                "code": 9822
            }
        },
        "parameters": [
            {
                "name": "Latitude of false origin",
                "value": 18,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8821
                }
            },
            {
                "name": "Longitude of false origin",
                "value": -100,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8822
                }
            },
            {
                "name": "Latitude of 1st standard parallel",
                "value": 27.5,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8823
                }
            },
            {
                "name": "Latitude of 2nd standard parallel",
                "value": 35,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8824
                }
            },
            {
                "name": "Easting at false origin",
                "value": 1500000,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8826
                }
            },
            {
                "name": "Northing at false origin",
                "value": 6000000,
                "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": "State-wide spatial data presentation requiring true area measurements.",
    "area": "United States (USA) - Texas.",
    "bbox": {
        "south_latitude": 25.83,
        "west_longitude": -106.66,
        "north_latitude": 36.5,
        "east_longitude": -93.5
    },
    "id": {
        "authority": "EPSG",
        "code": 3083
    }
}

Definition: GeoServer

3083=PROJCS["NAD83 / Texas Centric Albers Equal Area",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],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",18],PARAMETER["longitude_of_center",-100],PARAMETER["standard_parallel_1",27.5],PARAMETER["standard_parallel_2",35],PARAMETER["false_easting",1500000],PARAMETER["false_northing",6000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3083"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=aea"
	"lat_0=18"
	"lon_0=-100"
	"lat_1=27.5"
	"lat_2=35"
	"x_0=1500000"
	"y_0=6000000"
	"datum=NAD83"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=aea +lat_0=18 +lon_0=-100 +lat_1=27.5 +lat_2=35 +x_0=1500000 +y_0=6000000 +datum=NAD83 +units=m +no_defs +type=crs">
	<Layer srs="+proj=aea +lat_0=18 +lon_0=-100 +lat_1=27.5 +lat_2=35 +x_0=1500000 +y_0=6000000 +datum=NAD83 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 3083, 'EPSG', 3083, '+proj=aea +lat_0=18 +lon_0=-100 +lat_1=27.5 +lat_2=35 +x_0=1500000 +y_0=6000000 +datum=NAD83 +units=m +no_defs +type=crs', 'PROJCS["NAD83 / Texas Centric Albers Equal Area",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],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",18],PARAMETER["longitude_of_center",-100],PARAMETER["standard_parallel_1",27.5],PARAMETER["standard_parallel_2",35],PARAMETER["false_easting",1500000],PARAMETER["false_northing",6000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3083"]]');