NATRF2022e2020 / Gulf West (ft)

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

Selected transformation

Name: NATRF2022e2020 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: 2026-06-17

Attributes

Unit: foot

Geodetic CRS: NATRF2022e2020

Datum: North American Terrestrial Reference Frame of 2022 epoch 2020.00

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: National Geodetic Survey, https://geodesy.noaa.gov/

Revision date: 2026-06-17

Scope: Emulation of SPCS27.

Remarks: Emulates offshore deep water area of NAD27 / BLM 14N (ftUS) (CRS code 32064) to better than 6 ft. Emulation embeds change of ellipsoid and of unit (ftUS to ft). Notes: (i) NGS gives an equivalent definition in meters which is not included in the EPSG Dataset as this zone emulates SPCS27 for which there is no metric definition. (ii) SPCS2022 CRSs normally have axis order N-E; this emulation of SPCS27 uses SPCS27 order east (X) - north (Y).

Area of use: USA - Gulf outer continental shelf (GoM OCS) deep water west of approxinately 96°W - protraction areas Corpus Christi, Port Isabel.

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

Covered area powered by MapTiler

Center coordinates
-2007555.92 20508638.12

Projected bounds:
-30609414.44 8649997.58
23428281.79 35518933.87

WGS84 bounds:
167.65 23.81
-40.73 86.46

North America - onshore and offshore: Canada; United States (USA) - Alaska, conterminous (contiguous) lower 48 states (CONUS).

Definition: OGC Well Known Text

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PROJCS["NATRF2022e2020 / Gulf West (ft)",
    GEOGCS["NATRF2022e2020",
        DATUM["North_American_Terrestrial_Reference_Frame_of_2022_epoch_2020_00",
            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["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-99],
    PARAMETER["scale_factor",0.999584],
    PARAMETER["false_easting",1640525],
    PARAMETER["false_northing",-528.75],
    UNIT["foot",0.3048],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","10984"]]

Definition: OGC Well Known Text 2 (2019)

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PROJCRS["NATRF2022e2020 / Gulf West (ft)",
    BASEGEOGCRS["NATRF2022e2020",
        DATUM["North American Terrestrial Reference Frame of 2022 epoch 2020.00",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]],
            ANCHOREPOCH[2020]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",10968]],
    CONVERSION["SPCS2022 Gulf West zone (foot)",
        METHOD["Transverse Mercator",
            ID["EPSG",9807]],
        PARAMETER["Latitude of natural origin",0,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",-99,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",0.999584,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",1640525,
            LENGTHUNIT["foot",0.3048],
            ID["EPSG",8806]],
        PARAMETER["False northing",-528.75,
            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 outer continental shelf (GoM OCS) deep water west of approxinately 96°W  - protraction areas Corpus Christi, Port Isabel."],
        BBOX[26,-96.52,27.61,-95.87]],
    ID["EPSG",10984]]

Definition: ESRI Well Known Text

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PROJCS["NATRF2022e2020_Gulf_West_ft",
    GEOGCS["GCS_NATRF2022e2020",
        DATUM["D_North_American_Terrestrial_Reference_Frame_of_2022_epoch_2020_00",
            SPHEROID["GRS_1980",6378137.0,298.257222101]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",1640525.0],
    PARAMETER["False_Northing",-528.75],
    PARAMETER["Central_Meridian",-99.0],
    PARAMETER["Scale_Factor",0.999584],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["foot",0.3048]]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=-99 +k=0.999584 +x_0=500032.02 +y_0=-161.163 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:10984","+proj=tmerc +lat_0=0 +lon_0=-99 +k=0.999584 +x_0=500032.02 +y_0=-161.163 +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": "NATRF2022e2020 / Gulf West (ft)",
    "base_crs": {
        "type": "GeographicCRS",
        "name": "NATRF2022e2020",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "North American Terrestrial Reference Frame of 2022 epoch 2020.00",
            "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 West zone (foot)",
        "method": {
            "name": "Transverse Mercator",
            "id": {
                "authority": "EPSG",
                "code": 9807
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": 0,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": -99,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 0.999584,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 1640525,
                "unit": {
                    "type": "LinearUnit",
                    "name": "foot",
                    "conversion_factor": 0.3048
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": -528.75,
                "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 outer continental shelf (GoM OCS) deep water west of approxinately 96°W  - protraction areas Corpus Christi, Port Isabel.",
    "bbox": {
        "south_latitude": 26,
        "west_longitude": -96.52,
        "north_latitude": 27.61,
        "east_longitude": -95.87
    },
    "id": {
        "authority": "EPSG",
        "code": 10984
    }
}

Definition: GeoServer

10984=PROJCS["NATRF2022e2020 / Gulf West (ft)",GEOGCS["NATRF2022e2020",DATUM["North_American_Terrestrial_Reference_Frame_of_2022_epoch_2020_00",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["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-99],PARAMETER["scale_factor",0.999584],PARAMETER["false_easting",1640525],PARAMETER["false_northing",-528.75],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10984"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=-99"
	"k=0.999584"
	"x_0=500032.02"
	"y_0=-161.163"
	"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=tmerc +lat_0=0 +lon_0=-99 +k=0.999584 +x_0=500032.02 +y_0=-161.163 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs">
	<Layer srs="+proj=tmerc +lat_0=0 +lon_0=-99 +k=0.999584 +x_0=500032.02 +y_0=-161.163 +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 ( 10984, 'EPSG', 10984, '+proj=tmerc +lat_0=0 +lon_0=-99 +k=0.999584 +x_0=500032.02 +y_0=-161.163 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs', 'PROJCS["NATRF2022e2020 / Gulf West (ft)",GEOGCS["NATRF2022e2020",DATUM["North_American_Terrestrial_Reference_Frame_of_2022_epoch_2020_00",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["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-99],PARAMETER["scale_factor",0.999584],PARAMETER["false_easting",1640525],PARAMETER["false_northing",-528.75],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10984"]]');

EPSG:10984