EPSG:1027

EGM2008 geoid

Attributes

Data source: EPSG

Information source: US National Geospatial-Intelligence Agency (NGA). "The development and evaluation of the Earth Gravitational Model 2008 (EGM2008)", Journal of Geophysical Research: Solid Earth, volume 117 Issue B4, 2012-04-19. https://doi.org/10.1029/2011JB008916

Revision date: 2025-06-28

Scope: Geodesy.

Remarks: Replaces EGM96 geoid (datum code 5171). See transformation codes 3858 and 3859 for 2.5x2.5 and 1x1 arc minute geoid undulation grid files derived from the spherical harmonic coefficients.

Area of use: World.

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SimpleMap

WGS84 bounds:
179.9 -85.0
-179.9 85.0

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Definition: OGC Well Known Text

VERT_DATUM["EGM2008 geoid",2005,
    AUTHORITY["EPSG","1027"]]

Definition: OGC Well Known Text 2 (2019)

VDATUM["EGM2008 geoid",
    ID["EPSG",1027]]

Definition: ESRI Well Known Text

VDATUM["EGM2008_Geoid"]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "VerticalReferenceFrame",
    "name": "EGM2008 geoid",
    "scope": "Geodesy.",
    "area": "World.",
    "bbox": {
        "south_latitude": -90,
        "west_longitude": -180,
        "north_latitude": 90,
        "east_longitude": 180
    },
    "id": {
        "authority": "EPSG",
        "code": 1027
    }
}

Definition: GeoServer

1027-datum=VERT_DATUM["EGM2008 geoid",2005,AUTHORITY["EPSG","1027"]]