EPSG:3081 — NAD83 / Texas State Mapping System

Projected · USA - Texas

Export Formats

OGC WKT

PROJCS[
    "NAD83 / Texas State Mapping System",
    GEOGCS[
        "NAD83",
        DATUM[
            "North_American_Datum_1983",
            SPHEROID["GRS 1980",6378137,298.257222101],
            TOWGS84[0,0,0,0,0,0,0]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4269"]
    ],
    PROJECTION["Lambert_Conformal_Conic_2SP"],
    PARAMETER["latitude_of_origin",31.1666666666667],
    PARAMETER["central_meridian",-100],
    PARAMETER["standard_parallel_1",27.4166666666667],
    PARAMETER["standard_parallel_2",34.9166666666667],
    PARAMETER["false_easting",1000000],
    PARAMETER["false_northing",1000000],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","3081"]
]

WKT2

PROJCRS[
    "NAD83 / Texas State Mapping System",
    BASEGEOGCRS[
        "NAD83",
        DATUM[
            "North American Datum 1983",
            ELLIPSOID[
                "GRS 1980",
                6378137,
                298.257222101,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7019]
            ],
            ID["EPSG",6269]
        ],
        ID["EPSG",4269]
    ],
    CONVERSION[
        "Texas State Mapping System (meter)",
        METHOD["Lambert Conic Conformal (2SP)",ID["EPSG",9802]],
        PARAMETER[
            "Latitude of false origin",
            31.1666666666669,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8821]
        ],
        PARAMETER[
            "Longitude of false origin",
            -100,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8822]
        ],
        PARAMETER[
            "Latitude of 1st standard parallel",
            27.4166666666669,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8823]
        ],
        PARAMETER[
            "Latitude of 2nd standard parallel",
            34.9166666666669,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8824]
        ],
        PARAMETER[
            "Easting at false origin",
            1000000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8826]
        ],
        PARAMETER[
            "Northing at false origin",
            1000000,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8827]
        ],
        ID["EPSG",14251]
    ],
    CS[Cartesian,2,ID["EPSG",4499]],
    AXIS["Easting (X)",east],
    AXIS["Northing (Y)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",3081]
]

PROJ.4

+proj=lcc +lat_0=31.1666666666667 +lon_0=-100 +lat_1=27.4166666666667 +lat_2=34.9166666666667 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:3081", "+proj=lcc +lat_0=31.1666666666667 +lon_0=-100 +lat_1=27.4166666666667 +lat_2=34.9166666666667 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 3081,
  "name": "NAD83 / Texas State Mapping System",
  "kind": "projected",
  "area": "USA - Texas",
  "unit": "metre",
  "bbox": [
    25.83,
    -106.66,
    36.5,
    -93.5
  ],
  "proj4": "+proj=lcc +lat_0=31.1666666666667 +lon_0=-100 +lat_1=27.4166666666667 +lat_2=34.9166666666667 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3081, 'EPSG', 3081, '+proj=lcc +lat_0=31.1666666666667 +lon_0=-100 +lat_1=27.4166666666667 +lat_2=34.9166666666667 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["NAD83 / Texas State Mapping System",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",31.1666666666667],PARAMETER["central_meridian",-100],PARAMETER["standard_parallel_1",27.4166666666667],PARAMETER["standard_parallel_2",34.9166666666667],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3081"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=lcc"
  "+lat_0=31.1666666666667"
  "+lon_0=-100"
  "+lat_1=27.4166666666667"
  "+lat_2=34.9166666666667"
  "+x_0=1000000"
  "+y_0=1000000"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

3081=PROJCS["NAD83 / Texas State Mapping System",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",31.1666666666667],PARAMETER["central_meridian",-100],PARAMETER["standard_parallel_1",27.4166666666667],PARAMETER["standard_parallel_2",34.9166666666667],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3081"]]

Related Coordinate Systems (18)

Available Transformations (157)

Transformations inherited from base CRS: EPSG:4269 (NAD83)

Transformation	Source → Target	Accuracy (m)
NAD83 to NAD83(HARN) (1)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (2)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (3)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (4)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (5)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (6)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (7)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (8)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (9)	4269 → 4152	0.05
NAD83 to NAD83(HARN) (10)	4269 → 4152	0.05

Other CRS using North American Datum 1983 (339)

Frequently Asked Questions

How do I add EPSG:3081 to GeoServer?

Add the following definition to your GeoServer configuration:

3081=PROJCS["NAD83 / Texas State Mapping System",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",31.1666666666667],PARAMETER["central_meridian",-100],PARAMETER["standard_parallel_1",27.4166666666667],PARAMETER["standard_parallel_2",34.9166666666667],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3081"]]

Read the full GeoServer guide →

How do I add EPSG:3081 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3081, 'EPSG', 3081, '+proj=lcc +lat_0=31.1666666666667 +lon_0=-100 +lat_1=27.4166666666667 +lat_2=34.9166666666667 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs', 'PROJCS["NAD83 / Texas State Mapping System",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",31.1666666666667],PARAMETER["central_meridian",-100],PARAMETER["standard_parallel_1",27.4166666666667],PARAMETER["standard_parallel_2",34.9166666666667],PARAMETER["false_easting",1000000],PARAMETER["false_northing",1000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3081"]]');

Read the full PostGIS guide →

How do I add EPSG:3081 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=lcc"
  "+lat_0=31.1666666666667"
  "+lon_0=-100"
  "+lat_1=27.4166666666667"
  "+lat_2=34.9166666666667"
  "+x_0=1000000"
  "+y_0=1000000"
  "+ellps=GRS80"
  "+towgs84=0,0,0,0,0,0,0"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:3081 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:3081", "+proj=lcc +lat_0=31.1666666666667 +lon_0=-100 +lat_1=27.4166666666667 +lat_2=34.9166666666667 +x_0=1000000 +y_0=1000000 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

NAD83

Datum

North American Datum 1983

Ellipsoid

GRS 1980

Prime Meridian

Greenwich

Area of Use

USA - Texas

United States (USA) - Texas.

Coordinate System

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

Center Coordinates

992389.10 999818.36

Projected Bounds

1608302.69 331226.351583305.67 429093.94

WGS84 Bounds

36.50 -106.66-93.50 25.83

Data Source

EPSG

Information Source

Texas Natural Resources Information System, http://www.tnris.state.tx.us/DigitalData/projections.htm

Revision Date

2006-08-24

Scope

State-wide spatial data management.

Remarks

Replaces NAD27 / Shackleford. From 2001 replaced by NAD83 / Texas Centric Mapping System (TCMS/LC and TCMS/AEA).

EPSG

3081

ESRI Equivalent

ESRI:102603