EPSG
US Coast & Geodetic Survey www.ngs.noaa.gov
2004-04-27
Transformation of coordinates at 0.2m level of accuracy.
Accuracy 0.2m at 67% confidence level. Uses NADCON method which expects longitudes positive west; source and target CRSs have longitudes positive east. NADCON converts from Old Hawaiian Datum but makes the transformation appear to be from NAD27.
United States (USA) - Hawaii - main islands onshore.
(0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["Old Hawaiian to NAD83 (1)", VERSION["NGS-Usa HI"], SOURCECRS[ GEOGCRS["Old Hawaiian", DATUM["Old Hawaiian", ELLIPSOID["Clarke 1866",6378206.4,294.978698213898, 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",4135]]], TARGETCRS[ 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]]], METHOD["NADCON", ID["EPSG",9613]], PARAMETERFILE["Latitude difference file","hawaii.las"], PARAMETERFILE["Longitude difference file","hawaii.los"], OPERATIONACCURACY[0.2], USAGE[ SCOPE["Transformation of coordinates at 0.2m level of accuracy."], AREA["United States (USA) - Hawaii - main islands onshore."], BBOX[18.87,-160.3,22.29,-154.74]], ID["EPSG",1454], REMARK["Accuracy 0.2m at 67% confidence level. Uses NADCON method which expects longitudes positive west; source and target CRSs have longitudes positive east. NADCON converts from Old Hawaiian Datum but makes the transformation appear to be from NAD27."]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:1454","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=us_noaa_hawaii.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": "Old Hawaiian to NAD83 (1)", "source_crs": { "type": "GeographicCRS", "name": "Old Hawaiian", "datum": { "type": "GeodeticReferenceFrame", "name": "Old Hawaiian", "ellipsoid": { "name": "Clarke 1866", "semi_major_axis": 6378206.4, "semi_minor_axis": 6356583.8 } }, "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": 4135 } }, "target_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 } }, "method": { "name": "NADCON", "id": { "authority": "EPSG", "code": 9613 } }, "parameters": [ { "name": "Latitude difference file", "value": "hawaii.las", "id": { "authority": "EPSG", "code": 8657 } }, { "name": "Longitude difference file", "value": "hawaii.los", "id": { "authority": "EPSG", "code": 8658 } } ], "accuracy": "0.2", "scope": "Transformation of coordinates at 0.2m level of accuracy.", "area": "United States (USA) - Hawaii - main islands onshore.", "bbox": { "south_latitude": 18.87, "west_longitude": -160.3, "north_latitude": 22.29, "east_longitude": -154.74 }, "id": { "authority": "EPSG", "code": 1454 }, "remarks": "Accuracy 0.2m at 67% confidence level. Uses NADCON method which expects longitudes positive west; source and target CRSs have longitudes positive east. NADCON converts from Old Hawaiian Datum but makes the transformation appear to be from NAD27." }
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_hawaii.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_hawaii.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_hawaii.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 ( 1454, 'EPSG', 1454, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +proj=hgridshift +grids=us_noaa_hawaii.tif +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');