EPSG:1336

CNH22 Intermediate Reference Frame

Attributes

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Network Rail.

Revision date: 2023-01-12

Scope: Engineering survey and topographic mapping for railway applications.

Remarks: Created in 2022 to support intermediate CRS CNH22-IRF in the emulation of the CNH22 Snake map projection.

Area of use: United Kingdom (UK) - on or related to the rail route from Crewe via Chester to Holyhead.

Covered area powered by MapTiler MapTiler logo
SimpleMap

WGS84 bounds:
-2.28 53.02
-4.71 53.46

MapTiler banner

Definition: OGC Well Known Text

DATUM["CNH22_Intermediate_Reference_Frame",
    SPHEROID["GRS 1980",6378137,298.257222101,
        AUTHORITY["EPSG","7019"]],
    AUTHORITY["EPSG","1336"]]

Definition: OGC Well Known Text 2 (2019)

DATUM["CNH22 Intermediate Reference Frame",
    ELLIPSOID["GRS 1980",6378137,298.257222101,
        LENGTHUNIT["metre",1]],
    ID["EPSG",1336]]

Definition: ESRI Well Known Text

DATUM["CNH22_Intermediate_Reference_Frame",
    SPHEROID["GRS_1980",6378137.0,298.257222101]]

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "GeodeticReferenceFrame",
    "name": "CNH22 Intermediate Reference Frame",
    "ellipsoid": {
        "name": "GRS 1980",
        "semi_major_axis": 6378137,
        "inverse_flattening": 298.257222101
    },
    "scope": "Engineering survey and topographic mapping for railway applications.",
    "area": "United Kingdom (UK) - on or related to the rail route from Crewe via Chester to Holyhead.",
    "bbox": {
        "south_latitude": 53.02,
        "west_longitude": -4.71,
        "north_latitude": 53.46,
        "east_longitude": -2.28
    },
    "id": {
        "authority": "EPSG",
        "code": 1336
    }
}

Definition: GeoServer

1336-datum=DATUM["CNH22_Intermediate_Reference_Frame",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1336"]]