EPSG:10987

NATRF2022 / Gulf East (ft)

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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 most of offshore area of NAD27 / BLM zone 17 (ftUS) (CRS code 32067) to better than 6 ft, but in the extreme southwestern part differences can exceed 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: United States (USA) - Gulf of Mexico outer continental shelf (GoM OCS) east of approximately 84°W - protraction areas Gainesville; Tarpon Springs; St Petersburg; Charlotte Harbor; Pulley Ridge; Dry Tortugas; Tortugas Valley; Miami; Key West.

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

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SimpleMap

Center coordinates
-5600710.07 21989884.26

Projected bounds:
-30793305.37 8639766.82
15872328.06 47166482.75

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 East (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",-81],
    PARAMETER["scale_factor",0.9995987],
    PARAMETER["false_easting",1640355],
    PARAMETER["false_northing",-676.25],
    UNIT["foot",0.3048],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","10987"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["NATRF2022 / Gulf East (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 East 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",-81,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["Scale factor at natural origin",0.9995987,
            SCALEUNIT["unity",1],
            ID["EPSG",8805]],
        PARAMETER["False easting",1640355,
            LENGTHUNIT["foot",0.3048],
            ID["EPSG",8806]],
        PARAMETER["False northing",-676.25,
            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["United States (USA) - Gulf of Mexico outer continental shelf (GoM OCS) east of approximately 84°W - protraction areas Gainesville; Tarpon Springs; St Petersburg; Charlotte Harbor; Pulley Ridge; Dry Tortugas; Tortugas Valley; Miami; Key West."],
        BBOX[23.82,-84.09,29.94,-81.17]],
    ID["EPSG",10987]]

Definition: ESRI Well Known Text

PROJCS["NATRF2022_Gulf_East_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",1640355.0],
    PARAMETER["False_Northing",-676.25],
    PARAMETER["Central_Meridian",-81.0],
    PARAMETER["Scale_Factor",0.9995987],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["foot",0.3048]]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9995987 +x_0=499980.204 +y_0=-206.121 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:10987","+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9995987 +x_0=499980.204 +y_0=-206.121 +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 East (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 East 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": -81,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "Scale factor at natural origin",
                "value": 0.9995987,
                "unit": "unity",
                "id": {
                    "authority": "EPSG",
                    "code": 8805
                }
            },
            {
                "name": "False easting",
                "value": 1640355,
                "unit": {
                    "type": "LinearUnit",
                    "name": "foot",
                    "conversion_factor": 0.3048
                },
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": -676.25,
                "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": "United States (USA) - Gulf of Mexico outer continental shelf (GoM OCS) east of approximately 84°W - protraction areas Gainesville; Tarpon Springs; St Petersburg; Charlotte Harbor; Pulley Ridge; Dry Tortugas; Tortugas Valley; Miami; Key West.",
    "bbox": {
        "south_latitude": 23.82,
        "west_longitude": -84.09,
        "north_latitude": 29.94,
        "east_longitude": -81.17
    },
    "id": {
        "authority": "EPSG",
        "code": 10987
    }
}

Definition: GeoServer

10987=PROJCS["NATRF2022 / Gulf East (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",-81],PARAMETER["scale_factor",0.9995987],PARAMETER["false_easting",1640355],PARAMETER["false_northing",-676.25],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10987"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=-81"
	"k=0.9995987"
	"x_0=499980.204"
	"y_0=-206.121"
	"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=-81 +k=0.9995987 +x_0=499980.204 +y_0=-206.121 +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=-81 +k=0.9995987 +x_0=499980.204 +y_0=-206.121 +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 ( 10987, 'EPSG', 10987, '+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9995987 +x_0=499980.204 +y_0=-206.121 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=ft +no_defs +type=crs', 'PROJCS["NATRF2022 / Gulf East (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",-81],PARAMETER["scale_factor",0.9995987],PARAMETER["false_easting",1640355],PARAMETER["false_northing",-676.25],UNIT["foot",0.3048],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","10987"]]');