EPSG:10346

NSIDC Authalic Sphere

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: NSIDC Authalic Sphere

Datum: NSIDC International 1924 Authalic Sphere

Ellipsoid: International 1924 Authalic Sphere

Prime meridian: Greenwich

Data source: EPSG

Information source: Brodzik, M. J., & Knowles, K. (2002), "EASE-Grid: a versatile set of equal-area projections and grids", US National Snow and Ice Data Center.

Revision date: 2023-06-29

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

Remarks: Adopted by NSIDC for use with EASE-Grid v1. For EASE-Grid v2, WGS 84 is used.

Area of use: World.

Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree

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Center coordinates
0.0 0.0

WGS84 bounds:
-180.0 -90.0
180.0 90.0

World.
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Definition: OGC Well Known Text

GEOGCS["NSIDC Authalic Sphere",
    DATUM["NSIDC_International_1924_Authalic_Sphere",
        SPHEROID["International 1924 Authalic Sphere",6371228,0,
            AUTHORITY["EPSG","7057"]],
        AUTHORITY["EPSG","1360"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","10346"]]

Definition: OGC Well Known Text 2 (2019)

GEOGCRS["NSIDC Authalic Sphere",
    DATUM["NSIDC International 1924 Authalic Sphere",
        ELLIPSOID["International 1924 Authalic Sphere",6371228,0,
            LENGTHUNIT["metre",1]]],
    PRIMEM["Greenwich",0,
        ANGLEUNIT["degree",0.0174532925199433]],
    CS[ellipsoidal,2],
        AXIS["geodetic latitude (Lat)",north,
            ORDER[1],
            ANGLEUNIT["degree",0.0174532925199433]],
        AXIS["geodetic longitude (Lon)",east,
            ORDER[2],
            ANGLEUNIT["degree",0.0174532925199433]],
    USAGE[
        SCOPE["Environmental science - used as basis for EASE grid."],
        AREA["World."],
        BBOX[-90,-180,90,180]],
    ID["EPSG",10346]]

Definition: ESRI Well Known Text

GEOGCS["NSIDC_Authalic_Sphere",
    DATUM["NSIDC_International_1924_Authalic_Sphere",
        SPHEROID["Sphere_International_1924_Authalic",6371228.0,0.0]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +R=6371228 +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:10346","+proj=longlat +R=6371228 +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeographicCRS",
    "name": "NSIDC Authalic Sphere",
    "datum": {
        "type": "GeodeticReferenceFrame",
        "name": "NSIDC International 1924 Authalic Sphere",
        "ellipsoid": {
            "name": "International 1924 Authalic Sphere",
            "radius": 6371228
        }
    },
    "coordinate_system": {
        "subtype": "ellipsoidal",
        "axis": [
            {
                "name": "Geodetic latitude",
                "abbreviation": "Lat",
                "direction": "north",
                "unit": "degree"
            },
            {
                "name": "Geodetic longitude",
                "abbreviation": "Lon",
                "direction": "east",
                "unit": "degree"
            }
        ]
    },
    "scope": "Environmental science - used as basis for EASE grid.",
    "area": "World.",
    "bbox": {
        "south_latitude": -90,
        "west_longitude": -180,
        "north_latitude": 90,
        "east_longitude": 180
    },
    "id": {
        "authority": "EPSG",
        "code": 10346
    }
}

Definition: GeoServer

10346=GEOGCS["NSIDC Authalic Sphere",DATUM["NSIDC_International_1924_Authalic_Sphere",SPHEROID["International 1924 Authalic Sphere",6371228,0,AUTHORITY["EPSG","7057"]],AUTHORITY["EPSG","1360"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","10346"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"R=6371228"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +R=6371228 +no_defs +type=crs">
	<Layer srs="+proj=longlat +R=6371228 +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 10346, 'EPSG', 10346, '+proj=longlat +R=6371228 +no_defs +type=crs', 'GEOGCS["NSIDC Authalic Sphere",DATUM["NSIDC_International_1924_Authalic_Sphere",SPHEROID["International 1924 Authalic Sphere",6371228,0,AUTHORITY["EPSG","7057"]],AUTHORITY["EPSG","1360"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","10346"]]');