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Name: RGNC91-93 to NEA74 Noumea (4)
Method: NTv2
Grid Files: RGNC1991_NEA74Noumea.gsb
Remarks: Emulation using NTv2 method of tfm NEA74 Noumea to RGNC91-93 (3) (code 9328). Note reversal of sign of parameter values in grid file.
Information source: ESRI
Revision date: 2026-02-10
Unit: metre
Geodetic CRS: RGNC91-93
Datum: Reseau Geodesique de Nouvelle Caledonie 91-93
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Service Topographique de la Nouvelle Caledonie, Direction des Infrastructures, de la Topographie et des Transports Terrestres. www.dittt.gouv.nc
Revision date: 2023-03-31
Scope: Engineering survey, topographic mapping.
Remarks: Replaces use of UTM with older 2D systems IGN72 Grande Terre, IGN56 Lifou, ST87 Ouvea, IGN53 Mare, ST84 Ile des Pins, ST71 Belep and NEA74 Noumea (CRS codes 2981, 2995-98, 3060, 3164). Replaced by RGNC15 / Lambert New Caledonia 2015 (CRS code 10314).
Area of use: New Caledonia - Belep, Grande Terre, Ile des Pins, Loyalty Islands (Lifou, Mare, Ouvea).
Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.
&stroke=red&width=2&path=-22.37,166.35|-22.19,166.35|-22.19,166.54|-22.37,166.54|-22.37,166.35)
Center coordinates
inf inf
Projected bounds:
inf inf
inf inf
WGS84 bounds:
166.35 -22.37
166.54 -22.19
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["RGNC91-93 / Lambert New Caledonia", BASEGEOGCRS["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]], ID["EPSG",4749]], CONVERSION["Lambert New Caledonia", METHOD["Lambert Conic Conformal (2SP)", ID["EPSG",9802]], PARAMETER["Latitude of false origin",-21.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8821]], PARAMETER["Longitude of false origin",166, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8822]], PARAMETER["Latitude of 1st standard parallel",-20.6666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8823]], PARAMETER["Latitude of 2nd standard parallel",-22.3333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8824]], PARAMETER["Easting at false origin",400000, LENGTHUNIT["metre",1], ID["EPSG",8826]], PARAMETER["Northing at false origin",300000, LENGTHUNIT["metre",1], ID["EPSG",8827]]], CS[Cartesian,2], AXIS["easting (X)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["northing (Y)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], 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",3163]]], TARGETCRS[ GEOGCRS["NEA74 Noumea", DATUM["NEA74 Noumea", ELLIPSOID["International 1924",6378388,297, 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]], USAGE[ SCOPE["Geodesy."], AREA["New Caledonia - Grande Terre - Noumea district."], BBOX[-22.37,166.35,-22.19,166.54]], ID["EPSG",4644], REMARK["Replaced by RGNC91-93 (CRS code 4749)."]]], ABRIDGEDTRANSFORMATION["RGNC91-93 to NEA74 Noumea (4)", METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","RGNC1991_NEA74Noumea.gsb"], USAGE[ SCOPE["Geodesy."], AREA["New Caledonia - Grande Terre - Noumea district."], BBOX[-22.37,166.35,-22.19,166.54]], ID["EPSG",1295], REMARK["Emulation using NTv2 method of tfm NEA74 Noumea to RGNC91-93 (3) (code 9328). Note reversal of sign of parameter values in grid file."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "RGNC91-93 / Lambert New Caledonia", "base_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." }, "conversion": { "name": "Lambert New Caledonia", "method": { "name": "Lambert Conic Conformal (2SP)", "id": { "authority": "EPSG", "code": 9802 } }, "parameters": [ { "name": "Latitude of false origin", "value": -21.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": 166, "unit": "degree", "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Latitude of 1st standard parallel", "value": -20.6666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Latitude of 2nd standard parallel", "value": -22.3333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8824 } }, { "name": "Easting at false origin", "value": 400000, "unit": "metre", "id": { "authority": "EPSG", "code": 8826 } }, { "name": "Northing at false origin", "value": 300000, "unit": "metre", "id": { "authority": "EPSG", "code": 8827 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 3163 } }, "target_crs": { "type": "GeographicCRS", "name": "NEA74 Noumea", "datum": { "type": "GeodeticReferenceFrame", "name": "NEA74 Noumea", "ellipsoid": { "name": "International 1924", "semi_major_axis": 6378388, "inverse_flattening": 297 } }, "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": 4644 }, "remarks": "Replaced by RGNC91-93 (CRS code 4749)." }, "transformation": { "name": "RGNC91-93 to NEA74 Noumea (4)", "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "RGNC1991_NEA74Noumea.gsb", "id": { "authority": "EPSG", "code": 8656 } } ], "id": { "authority": "EPSG", "code": 1295 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_0=-21.5 +lon_0=166 +lat_1=-20.6666666666667 +lat_2=-22.3333333333333 +x_0=400000 +y_0=300000 +ellps=GRS80 +units=m +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_0=-21.5 +lon_0=166 +lat_1=-20.6666666666667 +lat_2=-22.3333333333333 +x_0=400000 +y_0=300000 +ellps=GRS80 +units=m +no_defs +type=crs"> </Layer> </Map>
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