EPSG:19863

South China Sea Lambert

Attributes

Data source: EPSG

Information source: Mobil Exploration.

Revision date: 2006-12-08

Scope: Oil and gas exploration and production.

Remarks: Originally defined with FN=500000 at true origin. This is at 21° 00' 37.0619"N. But operators assumed that it was at 21°N exactly. Thus by common practice Nf=500000 at 21°N exactly. The potential ambiguity is 1138m.

Method: Lambert Conic Conformal (2SP)

Area of use: China - offshore South China Sea - Pearl River basin.

Description: (0,)

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China - offshore South China Sea - Pearl River basin.

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Definition: OGC Well Known Text

PROJECTION["Lambert_Conformal_Conic_2SP"],
PARAMETER["latitude_of_origin",21],
PARAMETER["central_meridian",114],
PARAMETER["standard_parallel_1",18],
PARAMETER["standard_parallel_2",24],
PARAMETER["false_easting",500000],
PARAMETER["false_northing",500000]

Definition: OGC Well Known Text 2 (2019)

CONVERSION["South China Sea Lambert",
    METHOD["Lambert Conic Conformal (2SP)",
        ID["EPSG",9802]],
    PARAMETER["Latitude of false origin",21,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8821]],
    PARAMETER["Longitude of false origin",114,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8822]],
    PARAMETER["Latitude of 1st standard parallel",18,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8823]],
    PARAMETER["Latitude of 2nd standard parallel",24,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8824]],
    PARAMETER["Easting at false origin",500000,
        LENGTHUNIT["metre",1],
        ID["EPSG",8826]],
    PARAMETER["Northing at false origin",500000,
        LENGTHUNIT["metre",1],
        ID["EPSG",8827]],
    ID["EPSG",19863]]

Definition: ESRI Well Known Text

PROJECTION["Lambert_Conformal_Conic"],
PARAMETER["False_Easting",500000.0],
PARAMETER["False_Northing",500000.0],
PARAMETER["Central_Meridian",114.0],
PARAMETER["Standard_Parallel_1",18.0],
PARAMETER["Standard_Parallel_2",24.0],
PARAMETER["Latitude_Of_Origin",21.0]

Definition: PROJ.4

+proj=lcc +lat_0=21 +lon_0=114 +lat_1=18 +lat_2=24 +x_0=500000 +y_0=500000

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:19863","+proj=lcc +lat_0=21 +lon_0=114 +lat_1=18 +lat_2=24 +x_0=500000 +y_0=500000");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Conversion",
    "name": "South China Sea Lambert",
    "method": {
        "name": "Lambert Conic Conformal (2SP)",
        "id": {
            "authority": "EPSG",
            "code": 9802
        }
    },
    "parameters": [
        {
            "name": "Latitude of false origin",
            "value": 21,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8821
            }
        },
        {
            "name": "Longitude of false origin",
            "value": 114,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8822
            }
        },
        {
            "name": "Latitude of 1st standard parallel",
            "value": 18,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8823
            }
        },
        {
            "name": "Latitude of 2nd standard parallel",
            "value": 24,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8824
            }
        },
        {
            "name": "Easting at false origin",
            "value": 500000,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8826
            }
        },
        {
            "name": "Northing at false origin",
            "value": 500000,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8827
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 19863
    }
}

Definition: GeoServer

19863=PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",21],PARAMETER["central_meridian",114],PARAMETER["standard_parallel_1",18],PARAMETER["standard_parallel_2",24],PARAMETER["false_easting",500000],PARAMETER["false_northing",500000]

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_0=21"
	"lon_0=114"
	"lat_1=18"
	"lat_2=24"
	"x_0=500000"
	"y_0=500000"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_0=21 +lon_0=114 +lat_1=18 +lat_2=24 +x_0=500000 +y_0=500000">
	<Layer srs="+proj=lcc +lat_0=21 +lon_0=114 +lat_1=18 +lat_2=24 +x_0=500000 +y_0=500000">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 19863, 'EPSG', 19863, '+proj=lcc +lat_0=21 +lon_0=114 +lat_1=18 +lat_2=24 +x_0=500000 +y_0=500000', 'PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",21],PARAMETER["central_meridian",114],PARAMETER["standard_parallel_1",18],PARAMETER["standard_parallel_2",24],PARAMETER["false_easting",500000],PARAMETER["false_northing",500000]');