EPSG:1256

Canadian Geodetic Vertical Datum of 2013 (CGG2013a) epoch 2010

Attributes

Data source: EPSG

Information source: Geodetic Survey Division, Natural Resources Canada.

Revision date: 2023-11-30

Scope: Geodesy, topographic mapping.

Remarks: Replaces CGVD2013(CGG2013). CGVD2013(CGG2013a) is a static datum. However heights referenced to it change with time, primarily due to glacial isostasy. In practice static snapshots are used at epochs 2010.0 (this datum), 2002.0 and 1997.0.

Area of use: Canada - onshore and offshore - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon.

SimpleMap

WGS84 bounds:
-40.73 38.21
-141.01 86.46

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Definition: OGC Well Known Text

VERT_DATUM["Canadian Geodetic Vertical Datum of 2013 (CGG2013a) epoch 2010",2005,
    AUTHORITY["EPSG","1256"]]

Definition: OGC Well Known Text 2 (2019)

VDATUM["Canadian Geodetic Vertical Datum of 2013 (CGG2013a) epoch 2010",
    ID["EPSG",1256]]

Definition: ESRI Well Known Text

VDATUM["Canadian_Geodetic_Vertical_Datum_of_2013_CGG2013a"]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "VerticalReferenceFrame",
    "name": "Canadian Geodetic Vertical Datum of 2013 (CGG2013a) epoch 2010",
    "scope": "Geodesy, topographic mapping.",
    "area": "Canada - onshore and offshore - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon.",
    "bbox": {
        "south_latitude": 38.21,
        "west_longitude": -141.01,
        "north_latitude": 86.46,
        "east_longitude": -40.73
    },
    "id": {
        "authority": "EPSG",
        "code": 1256
    }
}

Definition: GeoServer

1256-datum=VERT_DATUM["Canadian Geodetic Vertical Datum of 2013 (CGG2013a) epoch 2010",2005,AUTHORITY["EPSG","1256"]]