EPSG:10974

SPCS2022 Gulf Texas Shelf South 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 Texas CS27 South zone. NGS definition in meters has FE=609630.480m FN=147679.410m.

Method: Lambert Conic Conformal (1SP)

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.

Description: (0,)

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

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Definition: OGC Well Known Text

PROJECTION["Lambert_Conformal_Conic_1SP"],
PARAMETER["latitude_of_origin",27],
PARAMETER["central_meridian",-98.5],
PARAMETER["scale_factor",0.9998844],
PARAMETER["false_easting",609630.48],
PARAMETER["false_northing",147679.41]

Definition: OGC Well Known Text 2 (2019)

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]],
    ID["EPSG",10974]]

Definition: ESRI Well Known Text

PROJECTION["Lambert_Conformal_Conic"],
PARAMETER["False_Easting",609630.48],
PARAMETER["False_Northing",147679.41],
PARAMETER["Central_Meridian",-98.5],
PARAMETER["Standard_Parallel_1",27.0],
PARAMETER["Scale_Factor",0.9998844],
PARAMETER["Latitude_Of_Origin",27.0]

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

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:10974","+proj=lcc +lat_1=27 +lat_0=27 +lon_0=-98.5 +k_0=0.9998844 +x_0=609630.48 +y_0=147679.41");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "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
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 10974
    }
}

Definition: GeoServer

10974=PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",27],PARAMETER["central_meridian",-98.5],PARAMETER["scale_factor",0.9998844],PARAMETER["false_easting",609630.48],PARAMETER["false_northing",147679.41]

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"
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">
	<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">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10974, 'EPSG', 10974, '+proj=lcc +lat_1=27 +lat_0=27 +lon_0=-98.5 +k_0=0.9998844 +x_0=609630.48 +y_0=147679.41', 'PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",27],PARAMETER["central_meridian",-98.5],PARAMETER["scale_factor",0.9998844],PARAMETER["false_easting",609630.48],PARAMETER["false_northing",147679.41]');