EPSG:9640

RGNC91-93 to RGNC91-93 + NGNC08 height (1)

Attributes

Geodetic CRS: RGNC91-93

Datum: Reseau Geodesique de Nouvelle Caledonie 91-93

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: Bureau de la Géodésie et du Nivellement, Service Topographique, DITTT.

Revision date: 2023-03-31

Scope: Reversible geoid model transformation.

Remarks: Reversible alternative to RGNC91-93 to NGNC08 height (1) (code 9352).

Method: Geog3D to Geog2D+GravityRelatedHeight (IGN2009)

Area of use: New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea).

Description: (0,)

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New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea).

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Definition: OGC Well Known Text 2 (2019)

COORDINATEOPERATION["RGNC91-93 to RGNC91-93 + NGNC08 height (1)",
    VERSION["BGN-Ncl RANC08"],
    SOURCECRS[
        GEOGCRS["RGNC91-93",
            DATUM["Reseau Geodesique de Nouvelle Caledonie 91-93",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            PRIMEM["Greenwich",0,
                ANGLEUNIT["degree",0.0174532925199433]],
            CS[ellipsoidal,3],
                AXIS["geodetic latitude (Lat)",north,
                    ORDER[1],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["geodetic longitude (Lon)",east,
                    ORDER[2],
                    ANGLEUNIT["degree",0.0174532925199433]],
                AXIS["ellipsoidal height (h)",up,
                    ORDER[3],
                    LENGTHUNIT["metre",1]],
            ID["EPSG",4907]]],
    TARGETCRS[
        COMPOUNDCRS["RGNC91-93 + NGNC08 height",
            GEOGCRS["RGNC91-93",
                DATUM["Reseau Geodesique de Nouvelle Caledonie 91-93",
                    ELLIPSOID["GRS 1980",6378137,298.257222101,
                        LENGTHUNIT["metre",1]]],
                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["NGNC08 height",
                VDATUM["Nivellement General de Nouvelle Caledonie 2008"],
                CS[vertical,1],
                    AXIS["gravity-related height (H)",up,
                        LENGTHUNIT["metre",1]]],
            ID["EPSG",9540]]],
    METHOD["Geog3D to Geog2D+GravityRelatedHeight (IGN2009)",
        ID["EPSG",1095]],
    PARAMETERFILE["Geoid (height correction) model file","Ranc08_Circe.mnt"],
    INTERPOLATIONCRS[
        GEOGCRS["RGNC91-93",
            DATUM["Reseau Geodesique de Nouvelle Caledonie 91-93",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            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]]]],
    OPERATIONACCURACY[0.03],
    USAGE[
        SCOPE["Reversible geoid model transformation."],
        AREA["New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea)."],
        BBOX[-22.73,163.54,-19.5,168.19]],
    ID["EPSG",9640],
    REMARK["Reversible alternative to RGNC91-93 to NGNC08 height (1) (code 9352)."]]

Definition: PROJ.4

+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:9640","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "RGNC91-93 to RGNC91-93 + NGNC08 height (1)",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "RGNC91-93",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Reseau Geodesique de Nouvelle Caledonie 91-93",
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                },
                {
                    "name": "Ellipsoidal height",
                    "abbreviation": "h",
                    "direction": "up",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4907
        },
        "remarks": "Replaces older systems IGN56 Lifou, IGN72 Grande Terre, ST87 Ouvea, IGN53 Mare, ST84 Ile des Pins, ST71 Belep and NEA74 Noumea. Replaced by RGNC15 (CRS 10309). See CRS code 10300 for alternate system with axes reversed used by DITTT for GIS purposes."
    },
    "target_crs": {
        "type": "CompoundCRS",
        "name": "RGNC91-93 + NGNC08 height",
        "components": [
            {
                "type": "GeographicCRS",
                "name": "RGNC91-93",
                "datum": {
                    "type": "GeodeticReferenceFrame",
                    "name": "Reseau Geodesique de Nouvelle Caledonie 91-93",
                    "ellipsoid": {
                        "name": "GRS 1980",
                        "semi_major_axis": 6378137,
                        "inverse_flattening": 298.257222101
                    }
                },
                "coordinate_system": {
                    "subtype": "ellipsoidal",
                    "axis": [
                        {
                            "name": "Geodetic latitude",
                            "abbreviation": "Lat",
                            "direction": "north",
                            "unit": "degree"
                        },
                        {
                            "name": "Geodetic longitude",
                            "abbreviation": "Lon",
                            "direction": "east",
                            "unit": "degree"
                        }
                    ]
                },
                "remarks": "Replaces older systems IGN56 Lifou, IGN72 Grande Terre, ST87 Ouvea, IGN53 Mare, ST84 Ile des Pins, ST71 Belep and NEA74 Noumea. Replaced by RGNC15 (CRS 10310). See CRS code 10307 for alternate system with axes reversed used by DITTT for GIS purposes."
            },
            {
                "type": "VerticalCRS",
                "name": "NGNC08 height",
                "datum": {
                    "type": "VerticalReferenceFrame",
                    "name": "Nivellement General de Nouvelle Caledonie 2008"
                },
                "coordinate_system": {
                    "subtype": "vertical",
                    "axis": [
                        {
                            "name": "Gravity-related height",
                            "abbreviation": "H",
                            "direction": "up",
                            "unit": "metre"
                        }
                    ]
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 9540
        }
    },
    "interpolation_crs": {
        "type": "GeographicCRS",
        "name": "RGNC91-93",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Reseau Geodesique de Nouvelle Caledonie 91-93",
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "coordinate_system": {
            "subtype": "ellipsoidal",
            "axis": [
                {
                    "name": "Geodetic latitude",
                    "abbreviation": "Lat",
                    "direction": "north",
                    "unit": "degree"
                },
                {
                    "name": "Geodetic longitude",
                    "abbreviation": "Lon",
                    "direction": "east",
                    "unit": "degree"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 4749
        },
        "remarks": "Replaces older systems IGN56 Lifou, IGN72 Grande Terre, ST87 Ouvea, IGN53 Mare, ST84 Ile des Pins, ST71 Belep and NEA74 Noumea. Replaced by RGNC15 (CRS 10310). See CRS code 10307 for alternate system with axes reversed used by DITTT for GIS purposes."
    },
    "method": {
        "name": "Geog3D to Geog2D+GravityRelatedHeight (IGN2009)",
        "id": {
            "authority": "EPSG",
            "code": 1095
        }
    },
    "parameters": [
        {
            "name": "Geoid (height correction) model file",
            "value": "Ranc08_Circe.mnt",
            "id": {
                "authority": "EPSG",
                "code": 8666
            }
        }
    ],
    "accuracy": "0.03",
    "scope": "Reversible geoid model transformation.",
    "area": "New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea).",
    "bbox": {
        "south_latitude": -22.73,
        "west_longitude": 163.54,
        "north_latitude": -19.5,
        "east_longitude": 168.19
    },
    "id": {
        "authority": "EPSG",
        "code": 9640
    },
    "remarks": "Reversible alternative to RGNC91-93 to NGNC08 height (1) (code 9352)."
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=pipeline"
	"step"
	"proj=axisswap"
	"order=2,1"
	"step"
	"proj=unitconvert"
	"xy_in=deg"
	"xy_out=rad"
	"step"
	"inv"
	"proj=vgridshift"
	"grids=nc_dittt_Ranc08_Circe.tif"
	"multiplier=1"
	"step"
	"proj=unitconvert"
	"xy_in=rad"
	"xy_out=deg"
	"step"
	"proj=axisswap"
	"order=2,1"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	<Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9640, 'EPSG', 9640, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=nc_dittt_Ranc08_Circe.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');