EPSG:9518

WGS 84 + EGM2008 height

Attributes

Geodetic CRS: WGS 84 + EGM2008 height

Data source: EPSG

Information source: IOGP

Revision date: 2021-02-05

Scope: Spatial referencing.

Area of use: World.

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SimpleMap

Center coordinates
0.0 0.0

Projected bounds:
-180.0 -90.0
180.0 90.0

WGS84 bounds:
-180.0 -90.0
180.0 90.0

World.
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Definition: OGC Well Known Text

COMPD_CS["WGS 84 + EGM2008 height",
    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"]],
    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","9518"]]

Definition: OGC Well Known Text 2 (2019)

COMPOUNDCRS["WGS 84 + EGM2008 height",
    GEOGCRS["WGS 84",
        ENSEMBLE["World Geodetic System 1984 ensemble",
            MEMBER["World Geodetic System 1984 (Transit)"],
            MEMBER["World Geodetic System 1984 (G730)"],
            MEMBER["World Geodetic System 1984 (G873)"],
            MEMBER["World Geodetic System 1984 (G1150)"],
            MEMBER["World Geodetic System 1984 (G1674)"],
            MEMBER["World Geodetic System 1984 (G1762)"],
            MEMBER["World Geodetic System 1984 (G2139)"],
            ELLIPSOID["WGS 84",6378137,298.257223563,
                LENGTHUNIT["metre",1]],
            ENSEMBLEACCURACY[2.0]],
        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]]],
    VERTCRS["EGM2008 height",
        VDATUM["EGM2008 geoid"],
        CS[vertical,1],
            AXIS["gravity-related height (H)",up,
                LENGTHUNIT["metre",1]]],
    USAGE[
        SCOPE["Spatial referencing."],
        AREA["World."],
        BBOX[-90,-180,90,180]],
    ID["EPSG",9518]]

Definition: ESRI Well Known Text

GEOGCS["GCS_WGS_1984",
    DATUM["D_WGS_1984",
        SPHEROID["WGS_1984",6378137.0,298.257223563]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]],
VERTCS["EGM2008_Geoid",
    VDATUM["EGM2008_Geoid"],
    PARAMETER["Vertical_Shift",0.0],
    PARAMETER["Direction",1.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=longlat +datum=WGS84 +vunits=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9518","+proj=longlat +datum=WGS84 +vunits=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "CompoundCRS",
    "name": "WGS 84 + EGM2008 height",
    "components": [
        {
            "type": "GeographicCRS",
            "name": "WGS 84",
            "datum_ensemble": {
                "name": "World Geodetic System 1984 ensemble",
                "members": [
                    {
                        "name": "World Geodetic System 1984 (Transit)",
                        "id": {
                            "authority": "EPSG",
                            "code": 1166
                        }
                    },
                    {
                        "name": "World Geodetic System 1984 (G730)",
                        "id": {
                            "authority": "EPSG",
                            "code": 1152
                        }
                    },
                    {
                        "name": "World Geodetic System 1984 (G873)",
                        "id": {
                            "authority": "EPSG",
                            "code": 1153
                        }
                    },
                    {
                        "name": "World Geodetic System 1984 (G1150)",
                        "id": {
                            "authority": "EPSG",
                            "code": 1154
                        }
                    },
                    {
                        "name": "World Geodetic System 1984 (G1674)",
                        "id": {
                            "authority": "EPSG",
                            "code": 1155
                        }
                    },
                    {
                        "name": "World Geodetic System 1984 (G1762)",
                        "id": {
                            "authority": "EPSG",
                            "code": 1156
                        }
                    },
                    {
                        "name": "World Geodetic System 1984 (G2139)",
                        "id": {
                            "authority": "EPSG",
                            "code": 1309
                        }
                    }
                ],
                "ellipsoid": {
                    "name": "WGS 84",
                    "semi_major_axis": 6378137,
                    "inverse_flattening": 298.257223563
                },
                "accuracy": "2.0",
                "id": {
                    "authority": "EPSG",
                    "code": 6326
                }
            },
            "coordinate_system": {
                "subtype": "ellipsoidal",
                "axis": [
                    {
                        "name": "Geodetic latitude",
                        "abbreviation": "Lat",
                        "direction": "north",
                        "unit": "degree"
                    },
                    {
                        "name": "Geodetic longitude",
                        "abbreviation": "Lon",
                        "direction": "east",
                        "unit": "degree"
                    }
                ]
            }
        },
        {
            "type": "VerticalCRS",
            "name": "EGM2008 height",
            "datum": {
                "type": "VerticalReferenceFrame",
                "name": "EGM2008 geoid"
            },
            "coordinate_system": {
                "subtype": "vertical",
                "axis": [
                    {
                        "name": "Gravity-related height",
                        "abbreviation": "H",
                        "direction": "up",
                        "unit": "metre"
                    }
                ]
            }
        }
    ],
    "scope": "Spatial referencing.",
    "area": "World.",
    "bbox": {
        "south_latitude": -90,
        "west_longitude": -180,
        "north_latitude": 90,
        "east_longitude": 180
    },
    "id": {
        "authority": "EPSG",
        "code": 9518
    }
}

Definition: GeoServer

9518=COMPD_CS["WGS 84 + EGM2008 height",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"]],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","9518"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"datum=WGS84"
	"vunits=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +datum=WGS84 +vunits=m +no_defs +type=crs">
	<Layer srs="+proj=longlat +datum=WGS84 +vunits=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9518, 'EPSG', 9518, '+proj=longlat +datum=WGS84 +vunits=m +no_defs +type=crs', 'COMPD_CS["WGS 84 + EGM2008 height",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"]],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","9518"]]');