EPSG:8228

NAVD88 height (ft)

Attributes

Unit: foot

Geodetic CRS: NAVD88 height

Datum: North American Vertical Datum 1988

Data source: EPSG

Information source: US Geological Survey.

Revision date: 2021-04-20

Scope: Engineering survey, GIS, topographic mapping.

Remarks: Care: only for use as part of a compound CRS in conjunction with State Plane CS in States which have passed State Plane legislation in International feet (note: not US survet feet).

Area of use: United States (USA) - onshore - Arizona; Michigan; Montana; North Dakota; Oregon; South Carolina.

Coordinate system: Vertical CS. Axis: height (H). Orientation: up. UoM: ft.

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United States (USA) - onshore - Arizona; Michigan; Montana; North Dakota; Oregon; South Carolina.
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Definition: OGC Well Known Text

VERT_CS["NAVD88 height (ft)",
    VERT_DATUM["North American Vertical Datum 1988",2005,
        AUTHORITY["EPSG","5103"]],
    UNIT["foot",0.3048,
        AUTHORITY["EPSG","9002"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["EPSG","8228"]]

Definition: OGC Well Known Text 2 (2019)

VERTCRS["NAVD88 height (ft)",
    VDATUM["North American Vertical Datum 1988"],
    CS[vertical,1],
        AXIS["gravity-related height (H)",up,
            LENGTHUNIT["foot",0.3048]],
    USAGE[
        SCOPE["Engineering survey, GIS, topographic mapping."],
        AREA["United States (USA) - onshore - Arizona; Michigan; Montana; North Dakota; Oregon; South Carolina."],
        BBOX[31.33,-124.6,49.01,-78.52]],
    ID["EPSG",8228]]

Definition: ESRI Well Known Text

VERTCS["NAVD88_height_(ftIntl)",
    VDATUM["North_American_Vertical_Datum_1988"],
    PARAMETER["Vertical_Shift",0.0],
    PARAMETER["Direction",1.0],
    UNIT["foot",0.3048]]

Definition: PROJ.4

+vunits=ft +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:8228","+vunits=ft +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "VerticalCRS",
    "name": "NAVD88 height (ft)",
    "datum": {
        "type": "VerticalReferenceFrame",
        "name": "North American Vertical Datum 1988"
    },
    "coordinate_system": {
        "subtype": "vertical",
        "axis": [
            {
                "name": "Gravity-related height",
                "abbreviation": "H",
                "direction": "up",
                "unit": {
                    "type": "LinearUnit",
                    "name": "foot",
                    "conversion_factor": 0.3048
                }
            }
        ]
    },
    "scope": "Engineering survey, GIS, topographic mapping.",
    "area": "United States (USA) - onshore - Arizona; Michigan; Montana; North Dakota; Oregon; South Carolina.",
    "bbox": {
        "south_latitude": 31.33,
        "west_longitude": -124.6,
        "north_latitude": 49.01,
        "east_longitude": -78.52
    },
    "id": {
        "authority": "EPSG",
        "code": 8228
    }
}

Definition: GeoServer

8228=VERT_CS["NAVD88 height (ft)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["foot",0.3048,AUTHORITY["EPSG","9002"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","8228"]]

Definition: MapServer - MAPfile

PROJECTION
	"vunits=ft"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+vunits=ft +no_defs +type=crs">
	<Layer srs="+vunits=ft +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 8228, 'EPSG', 8228, '+vunits=ft +no_defs +type=crs', 'VERT_CS["NAVD88 height (ft)",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["foot",0.3048,AUTHORITY["EPSG","9002"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","8228"]]');