EPSG:6929

US NSIDC EASE-Grid 2.0 North

Attributes

Data source: EPSG

Information source: Brodzik, M. J., B. Billingsley, T. Haran, B. Raup, M. H. Savoie. 2014. EASE-Grid 2.0: Incremental but Significant Improvements for Earth-Gridded Data Sets. ISPRS International Journal of Geo-Information 2012, 1, 32-45 & correction in 2014, 3, 1154-1156.

Revision date: 2014-11-21

Scope: Environmental science - used as basis for EASE grid.

Method: Lambert Azimuthal Equal Area

Area of use: Northern hemisphere.

Description: (0,)

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Northern hemisphere.

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Definition: OGC Well Known Text

PROJECTION["Lambert_Azimuthal_Equal_Area"],
PARAMETER["latitude_of_center",90],
PARAMETER["longitude_of_center",0],
PARAMETER["false_easting",0],
PARAMETER["false_northing",0]

Definition: OGC Well Known Text 2 (2019)

CONVERSION["US NSIDC EASE-Grid 2.0 North",
    METHOD["Lambert Azimuthal Equal Area",
        ID["EPSG",9820]],
    PARAMETER["Latitude of natural origin",90,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8801]],
    PARAMETER["Longitude of natural origin",0,
        ANGLEUNIT["degree",0.0174532925199433],
        ID["EPSG",8802]],
    PARAMETER["False easting",0,
        LENGTHUNIT["metre",1],
        ID["EPSG",8806]],
    PARAMETER["False northing",0,
        LENGTHUNIT["metre",1],
        ID["EPSG",8807]],
    ID["EPSG",6929]]

Definition: ESRI Well Known Text

PROJECTION["Lambert_Azimuthal_Equal_Area"],
PARAMETER["False_Easting",0.0],
PARAMETER["False_Northing",0.0],
PARAMETER["Central_Meridian",0.0],
PARAMETER["Latitude_Of_Origin",90.0]

Definition: PROJ.4

+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:6929","+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Conversion",
    "name": "US NSIDC EASE-Grid 2.0 North",
    "method": {
        "name": "Lambert Azimuthal Equal Area",
        "id": {
            "authority": "EPSG",
            "code": 9820
        }
    },
    "parameters": [
        {
            "name": "Latitude of natural origin",
            "value": 90,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8801
            }
        },
        {
            "name": "Longitude of natural origin",
            "value": 0,
            "unit": "degree",
            "id": {
                "authority": "EPSG",
                "code": 8802
            }
        },
        {
            "name": "False easting",
            "value": 0,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8806
            }
        },
        {
            "name": "False northing",
            "value": 0,
            "unit": "metre",
            "id": {
                "authority": "EPSG",
                "code": 8807
            }
        }
    ],
    "id": {
        "authority": "EPSG",
        "code": 6929
    }
}

Definition: GeoServer

6929=PROJECTION["Lambert_Azimuthal_Equal_Area"],PARAMETER["latitude_of_center",90],PARAMETER["longitude_of_center",0],PARAMETER["false_easting",0],PARAMETER["false_northing",0]

Definition: MapServer - MAPfile

PROJECTION
	"proj=laea"
	"lat_0=90"
	"lon_0=0"
	"x_0=0"
	"y_0=0"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0">
	<Layer srs="+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6929, 'EPSG', 6929, '+proj=laea +lat_0=90 +lon_0=0 +x_0=0 +y_0=0', 'PROJECTION["Lambert_Azimuthal_Equal_Area"],PARAMETER["latitude_of_center",90],PARAMETER["longitude_of_center",0],PARAMETER["false_easting",0],PARAMETER["false_northing",0]');