Geodetic CRS: ITRF96
Datum: International Terrestrial Reference Frame 1996
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Land Information New Zealand (LINZ) technical note , "NZGD2000 Deformation Model".
Revision date: 2020-10-21
Scope: Geodesy.
Remarks: Used as the second step in ITRF to NZGD2000 concatenated operations. Replaces 2017-12-01 model (CT code 9089).
Method: New Zealand Deformation Model
Area of use: New Zealand - North Island, South Island, Stewart Island - onshore and nearshore.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["ITRF96 to NZGD2000 (7)", VERSION["LINZ-Nzl 2018-07-01"], SOURCECRS[ GEOGCRS["ITRF96", DYNAMIC[ FRAMEEPOCH[1997]], DATUM["International Terrestrial Reference Frame 1996", 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",7907]]], TARGETCRS[ GEOGCRS["NZGD2000", DATUM["New Zealand Geodetic Datum 2000", 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",4959]]], METHOD["New Zealand Deformation Model", ID["EPSG",1079]], PARAMETERFILE["Point motion velocity grid file","nzgd2000_deformation_20180701_full.zip"], OPERATIONACCURACY[0.02], USAGE[ SCOPE["Geodesy."], AREA["New Zealand - North Island, South Island, Stewart Island - onshore and nearshore."], BBOX[-47.65,165.87,-33.89,179.27]], ID["EPSG",9090], REMARK["Used as the second step in ITRF to NZGD2000 concatenated operations. Replaces 2017-12-01 model (CT code 9089)."]]
Definition: PROJ.4
+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +z_in=m +xy_out=rad +z_out=m +step +inv +proj=defmodel +model=nz_linz_nzgd2000-20180701.json +step +proj=unitconvert +xy_in=rad +z_in=m +xy_out=deg +z_out=m +step +proj=axisswap +order=2,1
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:9090","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +z_in=m +xy_out=rad +z_out=m +step +inv +proj=defmodel +model=nz_linz_nzgd2000-20180701.json +step +proj=unitconvert +xy_in=rad +z_in=m +xy_out=deg +z_out=m +step +proj=axisswap +order=2,1");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "ITRF96 to NZGD2000 (7)", "source_crs": { "type": "GeographicCRS", "name": "ITRF96", "datum": { "type": "DynamicGeodeticReferenceFrame", "name": "International Terrestrial Reference Frame 1996", "frame_reference_epoch": 1997, "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": 7907 } }, "target_crs": { "type": "GeographicCRS", "name": "NZGD2000", "datum": { "type": "GeodeticReferenceFrame", "name": "New Zealand Geodetic Datum 2000", "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": 4959 } }, "method": { "name": "New Zealand Deformation Model", "id": { "authority": "EPSG", "code": 1079 } }, "parameters": [ { "name": "Point motion velocity grid file", "value": "nzgd2000_deformation_20180701_full.zip", "id": { "authority": "EPSG", "code": 1050 } } ], "accuracy": "0.02", "scope": "Geodesy.", "area": "New Zealand - North Island, South Island, Stewart Island - onshore and nearshore.", "bbox": { "south_latitude": -47.65, "west_longitude": 165.87, "north_latitude": -33.89, "east_longitude": 179.27 }, "id": { "authority": "EPSG", "code": 9090 }, "remarks": "Used as the second step in ITRF to NZGD2000 concatenated operations. Replaces 2017-12-01 model (CT code 9089)." }
Definition: MapServer - MAPfile
PROJECTION "proj=pipeline" "step" "proj=axisswap" "order=2,1" "step" "proj=unitconvert" "xy_in=deg" "z_in=m" "xy_out=rad" "z_out=m" "step" "inv" "proj=defmodel" "model=nz_linz_nzgd2000-20180701.json" "step" "proj=unitconvert" "xy_in=rad" "z_in=m" "xy_out=deg" "z_out=m" "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 +z_in=m +xy_out=rad +z_out=m +step +inv +proj=defmodel +model=nz_linz_nzgd2000-20180701.json +step +proj=unitconvert +xy_in=rad +z_in=m +xy_out=deg +z_out=m +step +proj=axisswap +order=2,1"> <Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +z_in=m +xy_out=rad +z_out=m +step +inv +proj=defmodel +model=nz_linz_nzgd2000-20180701.json +step +proj=unitconvert +xy_in=rad +z_in=m +xy_out=deg +z_out=m +step +proj=axisswap +order=2,1"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9090, 'EPSG', 9090, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +z_in=m +xy_out=rad +z_out=m +step +inv +proj=defmodel +model=nz_linz_nzgd2000-20180701.json +step +proj=unitconvert +xy_in=rad +z_in=m +xy_out=deg +z_out=m +step +proj=axisswap +order=2,1', 'None');