EPSG:6933 — WGS 84 / NSIDC EASE-Grid 2.0 Global

Projected · World - 86°S to 86°N

Export Formats

OGC WKT

PROJCS[
    "WGS 84 / NSIDC EASE-Grid 2.0 Global",
    GEOGCS[
        "WGS 84",
        DATUM[
            "WGS_1984",
            SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],
            AUTHORITY["EPSG","6326"]
        ],
        PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4326"]
    ],
    PROJECTION["Cylindrical_Equal_Area"],
    PARAMETER["standard_parallel_1",30],
    PARAMETER["central_meridian",0],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],
    UNIT["metre",1,AUTHORITY["EPSG","9001"]],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH],
    AUTHORITY["EPSG","6933"]
]

WKT2

PROJCRS[
    "WGS 84 / NSIDC EASE-Grid 2.0 Global",
    BASEGEOGCRS[
        "WGS 84",
        ENSEMBLE[
            "World Geodetic System 1984 ensemble",
            MEMBER["World Geodetic System 1984 (Transit)",ID["EPSG",1166]],
            MEMBER["World Geodetic System 1984 (G730)",ID["EPSG",1152]],
            MEMBER["World Geodetic System 1984 (G873)",ID["EPSG",1153]],
            MEMBER["World Geodetic System 1984 (G1150)",ID["EPSG",1154]],
            MEMBER["World Geodetic System 1984 (G1674)",ID["EPSG",1155]],
            MEMBER["World Geodetic System 1984 (G1762)",ID["EPSG",1156]],
            MEMBER["World Geodetic System 1984 (G2139)",ID["EPSG",1309]],
            MEMBER["World Geodetic System 1984 (G2296)",ID["EPSG",1383]],
            ELLIPSOID[
                "WGS 84",
                6378137,
                298.257223563,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7030]
            ],
            ENSEMBLEACCURACY[2],
            ID["EPSG",6326]
        ],
        ID["EPSG",4326]
    ],
    CONVERSION[
        "US NSIDC EASE-Grid 2.0 Global",
        METHOD["Lambert Cylindrical Equal Area",ID["EPSG",9835]],
        PARAMETER[
            "Latitude of 1st standard parallel",
            30,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8823]
        ],
        PARAMETER[
            "Longitude of natural origin",
            0,
            ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
            ID["EPSG",8802]
        ],
        PARAMETER[
            "False easting",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8806]
        ],
        PARAMETER[
            "False northing",
            0,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",8807]
        ],
        ID["EPSG",6928]
    ],
    CS[Cartesian,2,ID["EPSG",4499]],
    AXIS["Easting (X)",east],
    AXIS["Northing (Y)",north],
    LENGTHUNIT["metre",1,ID["EPSG",9001]],
    ID["EPSG",6933]
]

PROJ.4

+proj=cea +lat_ts=30 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:6933", "+proj=cea +lat_ts=30 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 6933,
  "name": "WGS 84 / NSIDC EASE-Grid 2.0 Global",
  "kind": "projected",
  "area": "World - 86°S to 86°N",
  "unit": "metre",
  "bbox": [
    -86,
    -180,
    86,
    180
  ],
  "proj4": "+proj=cea +lat_ts=30 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (6933, 'EPSG', 6933, '+proj=cea +lat_ts=30 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs', 'PROJCS["WGS 84 / NSIDC EASE-Grid 2.0 Global",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Cylindrical_Equal_Area"],PARAMETER["standard_parallel_1",30],PARAMETER["central_meridian",0],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6933"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=cea"
  "+lat_ts=30"
  "+lon_0=0"
  "+x_0=0"
  "+y_0=0"
  "+datum=WGS84"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

6933=PROJCS["WGS 84 / NSIDC EASE-Grid 2.0 Global",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Cylindrical_Equal_Area"],PARAMETER["standard_parallel_1",30],PARAMETER["central_meridian",0],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6933"]]

Related Coordinate Systems (428)

Available Transformations (1293)

Transformations inherited from base CRS: EPSG:4326 (WGS 84)

Transformation	Source → Target	Accuracy (m)
JAD2001 to WGS 84 (1)	4758 → 4326	0
QND95 to WGS 84 (1)	4614 → 4326	0
PRS92 to WGS 84 (1)	4683 → 4326	0.05
Guadeloupe 1948 to WGS 84 (2)	4622 → 4326	0.1
LGD2006 to WGS 84 (1)	4754 → 4326	0.1
Martinique 1938 to WGS 84 (2)	4625 → 4326	0.1
WGS 84 to IG05/12 Intermediate CRS	4326 → 6990	0.1
Nahrwan 1967 to WGS 84 (12)	4270 → 4326	0.15
Pointe Noire to WGS 84 (3)	4282 → 4326	0.15
Bogota 1975 to WGS 84 (2)	4218 → 4326	0.2

Other CRS using World Geodetic System 1984 ensemble (366)

Frequently Asked Questions

How do I add EPSG:6933 to GeoServer?

Add the following definition to your GeoServer configuration:

6933=PROJCS["WGS 84 / NSIDC EASE-Grid 2.0 Global",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Cylindrical_Equal_Area"],PARAMETER["standard_parallel_1",30],PARAMETER["central_meridian",0],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6933"]]

Read the full GeoServer guide →

How do I add EPSG:6933 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (6933, 'EPSG', 6933, '+proj=cea +lat_ts=30 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs', 'PROJCS["WGS 84 / NSIDC EASE-Grid 2.0 Global",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Cylindrical_Equal_Area"],PARAMETER["standard_parallel_1",30],PARAMETER["central_meridian",0],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6933"]]');

Read the full PostGIS guide →

How do I add EPSG:6933 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=cea"
  "+lat_ts=30"
  "+lon_0=0"
  "+x_0=0"
  "+y_0=0"
  "+datum=WGS84"
  "+units=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:6933 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:6933", "+proj=cea +lat_ts=30 +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs +type=crs");

Read the full Proj4js guide →

Type

Projected

Unit

metre

Geodetic CRS

WGS 84

Datum

World Geodetic System 1984 ensemble

Area of Use

World - 86°S to 86°N

World between 86°S and 86°N.

Coordinate System

Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.

Center Coordinates

0.00 0.00

Projected Bounds

7324184.56 -17367530.4517367530.45 -7324184.56

WGS84 Bounds

86.00 -180.00180.00 -86.00

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

2020-03-14

Scope

Environmental science - used as basis for EASE grid.

Remarks

Supersedes NSIDC EASE-Grid Global, CRS code 3410. This ellipsoidal development is to be preferred for new data.

EPSG

6933