EPSG:19901

Belge Lambert 50

Attributes

Data source: EPSG

Information source: "Systemes de reference et formules de transformation en usage en Belgique"; IGN Brussels

Revision date: 2008-06-24

Scope: Engineering survey, topographic mapping.

Remarks: Longitude is referenced to the Brussels meridian. If software cannot handle latitude of false origin of 90°N, use latitude of false origin = 50°30'00.0"N with northing at false origin = 131983.890 m.

Method: Lambert Conic Conformal (2SP)

Area of use: Belgium - onshore.

Description: (0,)

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Belgium - onshore.

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Definition: OGC Well Known Text

PROJECTION["Lambert_Conformal_Conic_2SP"],
PARAMETER["latitude_of_origin",90],
PARAMETER["central_meridian",0],
PARAMETER["standard_parallel_1",49.8333333333333],
PARAMETER["standard_parallel_2",51.1666666666667],
PARAMETER["false_easting",150000],
PARAMETER["false_northing",5400000]

Definition: OGC Well Known Text 2 (2019)

CONVERSION["Belge Lambert 50",
    METHOD["Lambert Conic Conformal (2SP)",
        ID["EPSG",9802]],
    PARAMETER["Latitude of false origin",90,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8821]],
    PARAMETER["Longitude of false origin",0,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8822]],
    PARAMETER["Latitude of 1st standard parallel",49.8333333333333,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8823]],
    PARAMETER["Latitude of 2nd standard parallel",51.1666666666667,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8824]],
    PARAMETER["Easting at false origin",150000,
        LENGTHUNIT["metre",1],
        ID["EPSG",8826]],
    PARAMETER["Northing at false origin",5400000,
        LENGTHUNIT["metre",1],
        ID["EPSG",8827]],
    ID["EPSG",19901]]

Definition: ESRI Well Known Text

PROJECTION["Lambert_Conformal_Conic"],
PARAMETER["False_Easting",150000.0],
PARAMETER["False_Northing",5400000.0],
PARAMETER["Central_Meridian",0.0],
PARAMETER["Standard_Parallel_1",49.8333333333333],
PARAMETER["Standard_Parallel_2",51.1666666666667],
PARAMETER["Latitude_Of_Origin",90.0]

Definition: PROJ.4

+proj=lcc +lat_0=90 +lon_0=0 +lat_1=49.8333333333333 +lat_2=51.1666666666667 +x_0=150000 +y_0=5400000

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:19901","+proj=lcc +lat_0=90 +lon_0=0 +lat_1=49.8333333333333 +lat_2=51.1666666666667 +x_0=150000 +y_0=5400000");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Conversion",
    "name": "Belge Lambert 50",
    "method": {
        "name": "Lambert Conic Conformal (2SP)",
        "id": {
            "authority": "EPSG",
            "code": 9802
        }
    },
    "parameters": [
        {
            "name": "Latitude of false origin",
            "value": 90,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8821
            }
        },
        {
            "name": "Longitude of false origin",
            "value": 0,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8822
            }
        },
        {
            "name": "Latitude of 1st standard parallel",
            "value": 49.8333333333333,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8823
            }
        },
        {
            "name": "Latitude of 2nd standard parallel",
            "value": 51.1666666666667,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8824
            }
        },
        {
            "name": "Easting at false origin",
            "value": 150000,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8826
            }
        },
        {
            "name": "Northing at false origin",
            "value": 5400000,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8827
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 19901
    }
}

Definition: GeoServer

19901=PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",90],PARAMETER["central_meridian",0],PARAMETER["standard_parallel_1",49.8333333333333],PARAMETER["standard_parallel_2",51.1666666666667],PARAMETER["false_easting",150000],PARAMETER["false_northing",5400000]

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_0=90"
	"lon_0=0"
	"lat_1=49.8333333333333"
	"lat_2=51.1666666666667"
	"x_0=150000"
	"y_0=5400000"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_0=90 +lon_0=0 +lat_1=49.8333333333333 +lat_2=51.1666666666667 +x_0=150000 +y_0=5400000">
	<Layer srs="+proj=lcc +lat_0=90 +lon_0=0 +lat_1=49.8333333333333 +lat_2=51.1666666666667 +x_0=150000 +y_0=5400000">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 19901, 'EPSG', 19901, '+proj=lcc +lat_0=90 +lon_0=0 +lat_1=49.8333333333333 +lat_2=51.1666666666667 +x_0=150000 +y_0=5400000', 'PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",90],PARAMETER["central_meridian",0],PARAMETER["standard_parallel_1",49.8333333333333],PARAMETER["standard_parallel_2",51.1666666666667],PARAMETER["false_easting",150000],PARAMETER["false_northing",5400000]');