EPSG:10978

SPCS2022 Gulf East zone (ft)

Attributes

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 part of BLM zone 17N (US survey foot). NGS definition in meters has FE=499980.204m FN=-206.121m.

Method: Transverse Mercator

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.

Description: (0,)

Covered area powered by MapTiler MapTiler logo
SimpleMap
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.

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Definition: OGC Well Known Text

PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",0],
PARAMETER["central_meridian",-81],
PARAMETER["scale_factor",0.9995987],
PARAMETER["false_easting",499980.204],
PARAMETER["false_northing",-206.121]

Definition: OGC Well Known Text 2 (2019)

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]],
    ID["EPSG",10978]]

Definition: ESRI Well Known Text

PROJECTION["Transverse_Mercator"],
PARAMETER["False_Easting",499980.204],
PARAMETER["False_Northing",-206.121],
PARAMETER["Central_Meridian",-81.0],
PARAMETER["Scale_Factor",0.9995987],
PARAMETER["Latitude_Of_Origin",0.0]

Definition: PROJ.4

+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9995987 +x_0=499980.204 +y_0=-206.121

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:10978","+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9995987 +x_0=499980.204 +y_0=-206.121");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "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
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 10978
    }
}

Definition: GeoServer

10978=PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-81],PARAMETER["scale_factor",0.9995987],PARAMETER["false_easting",499980.204],PARAMETER["false_northing",-206.121]

Definition: MapServer - MAPfile

PROJECTION
	"proj=tmerc"
	"lat_0=0"
	"lon_0=-81"
	"k=0.9995987"
	"x_0=499980.204"
	"y_0=-206.121"
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">
	<Layer srs="+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9995987 +x_0=499980.204 +y_0=-206.121">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10978, 'EPSG', 10978, '+proj=tmerc +lat_0=0 +lon_0=-81 +k=0.9995987 +x_0=499980.204 +y_0=-206.121', 'PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-81],PARAMETER["scale_factor",0.9995987],PARAMETER["false_easting",499980.204],PARAMETER["false_northing",-206.121]');