EPSG
US Coast & Geodetic Survey www.ngs.noaa.gov NADCON readme file
2023-01-17
Geodesy.
Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east. May be taken as approximate transformation NAD83-WGS 84 - see code 15837.
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Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["NAD83 to NAD83(HARN) (45)", VERSION["NGS-Usa SC"], 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(HARN)", DATUM["NAD83 (High Accuracy Reference Network)", 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",4152]]], METHOD["NADCON", ID["EPSG",9613]], PARAMETERFILE["Latitude difference file","schpgn.las"], PARAMETERFILE["Longitude difference file","schpgn.los"], OPERATIONACCURACY[0.05], USAGE[ SCOPE["Geodesy."], AREA["United States (USA) - South Carolina - counties of Abbeville; Aiken; Allendale; Anderson; Bamberg; Barnwell; Beaufort; Berkeley; Calhoun; Charleston; Cherokee; Chester; Chesterfield; Clarendon; Colleton; Darlington; Dillon; Dorchester; Edgefield; Fairfield; Florence; Georgetown; Greenville; Greenwood; Hampton; Horry; Jasper; Kershaw; Lancaster; Laurens; Lee; Lexington; Marion; Marlboro; McCormick; Newberry; Oconee; Orangeburg; Pickens; Richland; Saluda; Spartanburg; Sumter; Union; Williamsburg; York."], BBOX[32.05,-83.36,35.21,-78.52]], ID["EPSG",15836], REMARK["Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east. May be taken as approximate transformation NAD83-WGS 84 - see code 15837."]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:15836","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=us_noaa_schpgn.tif +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(HARN) (45)", "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(HARN)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (High Accuracy Reference Network)", "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": 4152 } }, "method": { "name": "NADCON", "id": { "authority": "EPSG", "code": 9613 } }, "parameters": [ { "name": "Latitude difference file", "value": "schpgn.las", "id": { "authority": "EPSG", "code": 8657 } }, { "name": "Longitude difference file", "value": "schpgn.los", "id": { "authority": "EPSG", "code": 8658 } } ], "accuracy": "0.05", "scope": "Geodesy.", "area": "United States (USA) - South Carolina - counties of Abbeville; Aiken; Allendale; Anderson; Bamberg; Barnwell; Beaufort; Berkeley; Calhoun; Charleston; Cherokee; Chester; Chesterfield; Clarendon; Colleton; Darlington; Dillon; Dorchester; Edgefield; Fairfield; Florence; Georgetown; Greenville; Greenwood; Hampton; Horry; Jasper; Kershaw; Lancaster; Laurens; Lee; Lexington; Marion; Marlboro; McCormick; Newberry; Oconee; Orangeburg; Pickens; Richland; Saluda; Spartanburg; Sumter; Union; Williamsburg; York.", "bbox": { "south_latitude": 32.05, "west_longitude": -83.36, "north_latitude": 35.21, "east_longitude": -78.52 }, "id": { "authority": "EPSG", "code": 15836 }, "remarks": "Uses NADCON method which expects longitudes positive west; EPSG GeogCRSs NAD83 (code 4269) and NAD83(HARN) (code 4152) have longitudes positive east. May be taken as approximate transformation NAD83-WGS 84 - see code 15837." }
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=us_noaa_schpgn.tif" "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=us_noaa_schpgn.tif +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=us_noaa_schpgn.tif +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 ( 15836, 'EPSG', 15836, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=us_noaa_schpgn.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');