EPSG:10985

NATRF2022 / Gulf West Central (ft)

Transform Get position on a map

Available transformations
to EPSG:4326
No other targets exist for this CRS

  • 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 / BLM zone 15 (ftUS) (CRS code 32065) between approximately 26°N and 28°N to better than 6 ft, but south of 26°N differences can exceed 5m / 15ft. 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 outer continental shelf (GoM OCS) deep water between approxinately 96°W and 90°W - protraction areas East Breaks, Alaminos Canyon, Garden Banks, Keathley Canyon, Sigsbee Escarpment, Ewing Bank, Green Canyon, Walker Ridge, Amery Terrace.

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

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SimpleMap

Center coordinates
-3231805.24 20885286.62

Projected bounds:
-30697364.56 8648083.7
20801800.83 40103058.59

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
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Definition: OGC Well Known Text

PROJCS["NATRF2022 / Gulf West Central (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["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-93],
    PARAMETER["scale_factor",0.9995867],
    PARAMETER["false_easting",1640461.25],
    PARAMETER["false_northing",-548.75],
    UNIT["foot",0.3048],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","10985"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["NATRF2022 / Gulf West Central (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 West Central zone (ft)",
        METHOD["Transverse Mercator",
            ID["EPSG",9807]],
        PARAMETER["Latitude of natural origin",0,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",-93,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",0.9995867,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",1640461.25,
            LENGTHUNIT["foot",0.3048],
            ID["EPSG",8806]],
        PARAMETER["False northing",-548.75,
            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 between approxinately 96°W and 90°W - protraction areas East Breaks, Alaminos Canyon, Garden Banks, Keathley Canyon, Sigsbee Escarpment, Ewing Bank, Green Canyon, Walker Ridge, Amery Terrace."],
        BBOX[25.61,-95.92,28.69,-89.86]],
    ID["EPSG",10985]]

Definition: ESRI Well Known Text

PROJCS["NATRF2022_Gulf_West_Central_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["Transverse_Mercator"],
    PARAMETER["False_Easting",1640461.25],
    PARAMETER["False_Northing",-548.75],
    PARAMETER["Central_Meridian",-93.0],
    PARAMETER["Scale_Factor",0.9995867],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["foot",0.3048]]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=-93 +k=0.9995867 +x_0=500012.589 +y_0=-167.259 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:10985","+proj=tmerc +lat_0=0 +lon_0=-93 +k=0.9995867 +x_0=500012.589 +y_0=-167.259 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "NATRF2022 / Gulf West Central (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 West Central zone (ft)",
        "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": -93,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 0.9995867,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 1640461.25,
                "unit": {
                    "type": "LinearUnit",
                    "name": "foot",
                    "conversion_factor": 0.3048
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": -548.75,
                "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 between approxinately 96°W and 90°W - protraction areas East Breaks, Alaminos Canyon, Garden Banks, Keathley Canyon, Sigsbee Escarpment, Ewing Bank, Green Canyon, Walker Ridge, Amery Terrace.",
    "bbox": {
        "south_latitude": 25.61,
        "west_longitude": -95.92,
        "north_latitude": 28.69,
        "east_longitude": -89.86
    },
    "id": {
        "authority": "EPSG",
        "code": 10985
    }
}

Definition: GeoServer

10985=PROJCS["NATRF2022 / Gulf West Central (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["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-93],PARAMETER["scale_factor",0.9995867],PARAMETER["false_easting",1640461.25],PARAMETER["false_northing",-548.75],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10985"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=-93"
	"k=0.9995867"
	"x_0=500012.589"
	"y_0=-167.259"
	"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=-93 +k=0.9995867 +x_0=500012.589 +y_0=-167.259 +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=-93 +k=0.9995867 +x_0=500012.589 +y_0=-167.259 +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 ( 10985, 'EPSG', 10985, '+proj=tmerc +lat_0=0 +lon_0=-93 +k=0.9995867 +x_0=500012.589 +y_0=-167.259 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs', 'PROJCS["NATRF2022 / Gulf West Central (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["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-93],PARAMETER["scale_factor",0.9995867],PARAMETER["false_easting",1640461.25],PARAMETER["false_northing",-548.75],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10985"]]');