NATRF2022 / Gulf Texas Shelf South (ft)

North America - onshore and offshore , accuracy 1.0 m, code 10969 (default) [3]

Selected transformation

Name: NATRF2022 to WGS 84 (1)

Method: Geocentric translations (geog2D domain)

Remarks: For many purposes NATRF2022 can be considered to be coincident with WGS 84. This approximation ignores the low accuracy of the WGS 84 ensemble and the application of tectonic plate motion to WGS 84 data.

Information source: IOGP

Revision date: 2025-08-11

Attributes

Unit: foot

Geodetic CRS: NATRF2022

Datum: North American Terrestrial Reference Frame of 2022

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: U.S. National Geodetic Survey, https://www.ngs.noaa.gov/

Revision date: 2025-08-11

Scope: Emulation of SPCS27.

Remarks: Emulates offshore area of NAD27 / Texas South zone (CRS code 32041) to better than 6 ft. Emulation embeds change of ellipsoid and of unit (ftUS to ft). Note: SPCS2022 CRSs normally have axis order N-E; this emulation of SPCS27 uses SPCS27 order east (X) - north (Y).

Area of use: USA - Gulf OCS - Texas shelf south of approximately 27°50'N - leasing areas Mustang Island, North Padre Island and South Padre Island.

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

Covered area powered by MapTiler

Center coordinates
-2326002.68 11518740.94

Projected bounds:
-26603313.58 -666134.18
20672649.54 33771638.6

WGS84 bounds:
167.65 23.81
-40.73 86.46

North America - onshore and offshore: Canada - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon. United States (USA) - Alabama; Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming

Definition: OGC Well Known Text

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PROJCS["NATRF2022 / Gulf Texas Shelf South (ft)",
    GEOGCS["NATRF2022",
        DATUM["North_American_Terrestrial_Reference_Frame_of_2022",
            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","10968"]],
    PROJECTION["Lambert_Conformal_Conic_1SP"],
    PARAMETER["latitude_of_origin",27],
    PARAMETER["central_meridian",-98.5],
    PARAMETER["scale_factor",0.9998844],
    PARAMETER["false_easting",2000100],
    PARAMETER["false_northing",484512.5],
    UNIT["foot",0.3048],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","10983"]]

Definition: OGC Well Known Text 2 (2019)

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PROJCRS["NATRF2022 / Gulf Texas Shelf South (ft)",
    BASEGEOGCRS["NATRF2022",
        DATUM["North American Terrestrial Reference Frame of 2022",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]],
            ANCHOREPOCH[2020]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",10968]],
    CONVERSION["SPCS2022 Gulf Texas Shelf South zone (ft)",
        METHOD["Lambert Conic Conformal (1SP)",
            ID["EPSG",9801]],
        PARAMETER["Latitude of natural origin",27,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",-98.5,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",0.9998844,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",2000100,
            LENGTHUNIT["foot",0.3048],
            ID["EPSG",8806]],
        PARAMETER["False northing",484512.5,
            LENGTHUNIT["foot",0.3048],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["easting (X)",east,
            ORDER[1],
            LENGTHUNIT["foot",0.3048]],
        AXIS["northing (Y)",north,
            ORDER[2],
            LENGTHUNIT["foot",0.3048]],
    USAGE[
        SCOPE["Emulation of SPCS27."],
        AREA["USA - Gulf OCS - Texas shelf south of approximately 27°50'N - leasing areas Mustang Island, North Padre Island and South Padre Island."],
        BBOX[25.97,-97.22,27.84,-95.36]],
    ID["EPSG",10983]]

Definition: ESRI Well Known Text

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PROJCS["NATRF2022_Gulf_Texas_Shelf_South_ft",
    GEOGCS["GCS_NATRF2022",
        DATUM["D_North_American_Terrestrial_Reference_Frame_of_2022",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Lambert_Conformal_Conic"],
    PARAMETER["False_Easting",2000100.0],
    PARAMETER["False_Northing",484512.5],
    PARAMETER["Central_Meridian",-98.5],
    PARAMETER["Standard_Parallel_1",27.0],
    PARAMETER["Scale_Factor",0.9998844],
    PARAMETER["Latitude_Of_Origin",27.0],
    UNIT["foot",0.3048]]

Definition: PROJ.4

+proj=lcc +lat_1=27 +lat_0=27 +lon_0=-98.5 +k_0=0.9998844 +x_0=609630.48 +y_0=147679.41 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:10983","+proj=lcc +lat_1=27 +lat_0=27 +lon_0=-98.5 +k_0=0.9998844 +x_0=609630.48 +y_0=147679.41 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs");

Definition: JSON

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{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "NATRF2022 / Gulf Texas Shelf South (ft)",
    "base_crs": {
        "type": "GeographicCRS",
        "name": "NATRF2022",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "North American Terrestrial Reference Frame of 2022",
            "anchor_epoch": 2020,
            "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": 10968
        }
    },
    "conversion": {
        "name": "SPCS2022 Gulf Texas Shelf South zone (ft)",
        "method": {
            "name": "Lambert Conic Conformal (1SP)",
            "id": {
                "authority": "EPSG",
                "code": 9801
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": 27,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": -98.5,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 0.9998844,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 2000100,
                "unit": {
                    "type": "LinearUnit",
                    "name": "foot",
                    "conversion_factor": 0.3048
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 484512.5,
                "unit": {
                    "type": "LinearUnit",
                    "name": "foot",
                    "conversion_factor": 0.3048
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8807
                }
            }
        ]
    },
    "coordinate_system": {
        "subtype": "Cartesian",
        "axis": [
            {
                "name": "Easting",
                "abbreviation": "X",
                "direction": "east",
                "unit": {
                    "type": "LinearUnit",
                    "name": "foot",
                    "conversion_factor": 0.3048
                }
            },
            {
                "name": "Northing",
                "abbreviation": "Y",
                "direction": "north",
                "unit": {
                    "type": "LinearUnit",
                    "name": "foot",
                    "conversion_factor": 0.3048
                }
            }
        ]
    },
    "scope": "Emulation of SPCS27.",
    "area": "USA - Gulf OCS - Texas shelf south of approximately 27°50'N - leasing areas Mustang Island, North Padre Island and South Padre Island.",
    "bbox": {
        "south_latitude": 25.97,
        "west_longitude": -97.22,
        "north_latitude": 27.84,
        "east_longitude": -95.36
    },
    "id": {
        "authority": "EPSG",
        "code": 10983
    }
}

Definition: GeoServer

10983=PROJCS["NATRF2022 / Gulf Texas Shelf South (ft)",GEOGCS["NATRF2022",DATUM["North_American_Terrestrial_Reference_Frame_of_2022",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","10968"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",27],PARAMETER["central_meridian",-98.5],PARAMETER["scale_factor",0.9998844],PARAMETER["false_easting",2000100],PARAMETER["false_northing",484512.5],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10983"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_1=27"
	"lat_0=27"
	"lon_0=-98.5"
	"k_0=0.9998844"
	"x_0=609630.48"
	"y_0=147679.41"
	"ellps=GRS80"
	"towgs84=0,0,0,0,0,0,0"
	"units=ft"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_1=27 +lat_0=27 +lon_0=-98.5 +k_0=0.9998844 +x_0=609630.48 +y_0=147679.41 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs">
	<Layer srs="+proj=lcc +lat_1=27 +lat_0=27 +lon_0=-98.5 +k_0=0.9998844 +x_0=609630.48 +y_0=147679.41 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10983, 'EPSG', 10983, '+proj=lcc +lat_1=27 +lat_0=27 +lon_0=-98.5 +k_0=0.9998844 +x_0=609630.48 +y_0=147679.41 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs', 'PROJCS["NATRF2022 / Gulf Texas Shelf South (ft)",GEOGCS["NATRF2022",DATUM["North_American_Terrestrial_Reference_Frame_of_2022",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","10968"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",27],PARAMETER["central_meridian",-98.5],PARAMETER["scale_factor",0.9998844],PARAMETER["false_easting",2000100],PARAMETER["false_northing",484512.5],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10983"]]');

EPSG:10983