Data source: EPSG
Information source: Instituto Portugues de Cartografia e Cadastro via EuroGeographics; http://crs.bkg.bund.de/crs-eu/
Revision date: 2001-11-06
Scope: Engineering survey, topographic mapping.
Remarks: Applied to Datum 73. Grid position at origin is coincident with the unmodified grid applied to Lisbon datum.
Method: Transverse Mercator
Area of use: Portugal - mainland - onshore.
Description: (0,)
Definition: Well Known Text (WKT)
PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",39.6666666666667], PARAMETER["central_meridian",-8.13190611111111], PARAMETER["scale_factor",1], PARAMETER["false_easting",180.598], PARAMETER["false_northing",-86.99]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json", "type": "Conversion", "name": "Modified Portuguese Grid", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 39.6666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -8.13190611111111, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 1, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 180.598, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": -86.99, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ], "id": { "authority": "EPSG", "code": 19974 } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=39.6666666666667 +lon_0=-8.13190611111111 +k=1 +x_0=180.598 +y_0=-86.99"> <Layer srs="+proj=tmerc +lat_0=39.6666666666667 +lon_0=-8.13190611111111 +k=1 +x_0=180.598 +y_0=-86.99"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 19974, 'EPSG', 19974, '+proj=tmerc +lat_0=39.6666666666667 +lon_0=-8.13190611111111 +k=1 +x_0=180.598 +y_0=-86.99', 'PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",39.6666666666667],PARAMETER["central_meridian",-8.13190611111111],PARAMETER["scale_factor",1],PARAMETER["false_easting",180.598],PARAMETER["false_northing",-86.99]');
Definition: OGC WKT 2 (2019)
CONVERSION["Modified Portuguese Grid",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",39.6666666666667,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",-8.13190611111111,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",1,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",180.598,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",-86.99,LENGTHUNIT["metre",1],ID["EPSG",8807]],ID["EPSG",19974]]