EPSG:6893 — WGS 84 / World Mercator + EGM2008 height

Compound · World - between 80°S and 84°N

Export Formats

OGC WKT

COMPD_CS[
    "WGS 84 / World Mercator + EGM2008 height",
    PROJCS[
        "WGS 84 / World Mercator",
        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["Mercator_1SP"],
        PARAMETER["central_meridian",0],
        PARAMETER["scale_factor",1],
        PARAMETER["false_easting",0],
        PARAMETER["false_northing",0],
        UNIT["metre",1,AUTHORITY["EPSG","9001"]],
        AXIS["Easting",EAST],
        AXIS["Northing",NORTH],
        AUTHORITY["EPSG","3395"]
    ],
    VERT_CS[
        "EGM2008 height",
        VERT_DATUM["EGM2008 geoid",2005,AUTHORITY["EPSG","1027"]],
        UNIT["metre",1,AUTHORITY["EPSG","9001"]],
        AXIS["Gravity-related height",UP],
        AUTHORITY["EPSG","3855"]
    ],
    AUTHORITY["EPSG","6893"]
]

WKT2

COMPOUNDCRS[
    "WGS 84 / World Mercator + EGM2008 height",
    PROJCRS[
        "WGS 84 / World Mercator",
        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[
            "World Mercator",
            METHOD["Mercator (variant A)",ID["EPSG",9804]],
            PARAMETER[
                "Latitude of natural origin",
                0,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8801]
            ],
            PARAMETER[
                "Longitude of natural origin",
                0,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8802]
            ],
            PARAMETER[
                "Scale factor at natural origin",
                1,
                SCALEUNIT["unity",1,ID["EPSG",9201]],
                ID["EPSG",8805]
            ],
            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",19883]
        ],
        CS[Cartesian,2,ID["EPSG",4400]],
        AXIS["Easting (E)",east],
        AXIS["Northing (N)",north],
        LENGTHUNIT["metre",1,ID["EPSG",9001]],
        ID["EPSG",3395]
    ],
    VERTCRS[
        "EGM2008 height",
        VDATUM["EGM2008 geoid",ID["EPSG",1027]],
        CS[vertical,1,ID["EPSG",6499]],
        AXIS["Gravity-related height (H)",up],
        LENGTHUNIT["metre",1,ID["EPSG",9001]],
        ID["EPSG",3855]
    ],
    ID["EPSG",6893]
]

PROJ.4

+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +vunits=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:6893", "+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +vunits=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 6893,
  "name": "WGS 84 / World Mercator + EGM2008 height",
  "kind": "compound",
  "area": "World - between 80°S and 84°N",
  "unit": null,
  "bbox": [
    -80,
    -180,
    84,
    180
  ],
  "proj4": "+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +vunits=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 (6893, 'EPSG', 6893, '+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["WGS 84 / World Mercator + EGM2008 height",PROJCS["WGS 84 / World Mercator",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["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3395"]],VERT_CS["EGM2008 height",VERT_DATUM["EGM2008 geoid",2005,AUTHORITY["EPSG","1027"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","3855"]],AUTHORITY["EPSG","6893"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=merc"
  "+lon_0=0"
  "+k=1"
  "+x_0=0"
  "+y_0=0"
  "+datum=WGS84"
  "+units=m"
  "+vunits=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

6893=COMPD_CS["WGS 84 / World Mercator + EGM2008 height",PROJCS["WGS 84 / World Mercator",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["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3395"]],VERT_CS["EGM2008 height",VERT_DATUM["EGM2008 geoid",2005,AUTHORITY["EPSG","1027"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","3855"]],AUTHORITY["EPSG","6893"]]

Frequently Asked Questions

How do I add EPSG:6893 to GeoServer?

Add the following definition to your GeoServer configuration:

6893=COMPD_CS["WGS 84 / World Mercator + EGM2008 height",PROJCS["WGS 84 / World Mercator",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["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3395"]],VERT_CS["EGM2008 height",VERT_DATUM["EGM2008 geoid",2005,AUTHORITY["EPSG","1027"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","3855"]],AUTHORITY["EPSG","6893"]]

Read the full GeoServer guide →

How do I add EPSG:6893 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (6893, 'EPSG', 6893, '+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["WGS 84 / World Mercator + EGM2008 height",PROJCS["WGS 84 / World Mercator",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["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","3395"]],VERT_CS["EGM2008 height",VERT_DATUM["EGM2008 geoid",2005,AUTHORITY["EPSG","1027"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","3855"]],AUTHORITY["EPSG","6893"]]');

Read the full PostGIS guide →

How do I add EPSG:6893 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=merc"
  "+lon_0=0"
  "+k=1"
  "+x_0=0"
  "+y_0=0"
  "+datum=WGS84"
  "+units=m"
  "+vunits=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:6893 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:6893", "+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +datum=WGS84 +units=m +vunits=m +no_defs +type=crs");

Read the full Proj4js guide →