EPSG
Canadian Geodetic Survey, Natural Resources Canada (NrCan).
2023-07-17
Spatial referencing.
File NLCSRSV4A.GSB corrects error in file header record previously released as NLCSRSV4.GSB. No change to gridded data.
Canada - Newfoundland - onshore.
(0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["NAD83 to NAD83(CSRS)v6 (10)", VERSION["CGS-Can Nfl island"], SOURCECRS[ GEOGCRS["NAD83", DATUM["North American Datum 1983", 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]], ID["EPSG",4269]]], TARGETCRS[ GEOGCRS["NAD83(CSRS)v6", DATUM["North American Datum of 1983 (CSRS) version 6", 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]], ID["EPSG",8252]]], METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","NLCSRSV4A.GSB"], OPERATIONACCURACY[0.1], USAGE[ SCOPE["Spatial referencing."], AREA["Canada - Newfoundland - onshore."], BBOX[46.56,-59.48,51.68,-52.54]], ID["EPSG",9550], REMARK["File NLCSRSV4A.GSB corrects error in file header record previously released as NLCSRSV4.GSB. No change to gridded data."]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:9550","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=NLCSRSV4A.GSB +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": "NAD83 to NAD83(CSRS)v6 (10)", "source_crs": { "type": "GeographicCRS", "name": "NAD83", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum 1983", "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": 4269 } }, "target_crs": { "type": "GeographicCRS", "name": "NAD83(CSRS)v6", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum of 1983 (CSRS) version 6", "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": 8252 } }, "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "NLCSRSV4A.GSB", "id": { "authority": "EPSG", "code": 8656 } } ], "accuracy": "0.1", "scope": "Spatial referencing.", "area": "Canada - Newfoundland - onshore.", "bbox": { "south_latitude": 46.56, "west_longitude": -59.48, "north_latitude": 51.68, "east_longitude": -52.54 }, "id": { "authority": "EPSG", "code": 9550 }, "remarks": "File NLCSRSV4A.GSB corrects error in file header record previously released as NLCSRSV4.GSB. No change to gridded data." }
Definition: MapServer - MAPfile
PROJECTION "proj=pipeline" "step" "proj=axisswap" "order=2,1" "step" "proj=unitconvert" "xy_in=deg" "xy_out=rad" "step" "proj=hgridshift" "grids=NLCSRSV4A.GSB" "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 +proj=hgridshift +grids=NLCSRSV4A.GSB +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 +proj=hgridshift +grids=NLCSRSV4A.GSB +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 ( 9550, 'EPSG', 9550, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=NLCSRSV4A.GSB +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');