metre
Engineering survey, topographic mapping.
None
Portugal - mainland - onshore.
Data Source: EPSG v11.016 2024-08-31
Datum: Datum 73
Coordinate System: cartesian
Projection: Modified Portuguese Grid
Geodetic CRS: Datum 73
PROJCRS["Datum 73 / Modified Portuguese Grid",
BASEGEOGCRS["Datum 73",
DATUM["Datum 73",
ELLIPSOID["International 1924",6378388,297,
LENGTHUNIT["metre",1]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4274]],
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]]],
CS[Cartesian,2],
AXIS["easting (X)",east,
ORDER[1],
LENGTHUNIT["metre",1]],
AXIS["northing (Y)",north,
ORDER[2],
LENGTHUNIT["metre",1]],
USAGE[
SCOPE["Engineering survey, topographic mapping."],
AREA["Portugal - mainland - onshore."],
BBOX[36.95,-9.56,42.16,-6.19]],
ID["EPSG",27493]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "Datum 73 / Modified Portuguese Grid",
"base_crs": {
"name": "Datum 73",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "Datum 73",
"ellipsoid": {
"name": "International 1924",
"semi_major_axis": 6378388,
"inverse_flattening": 297
}
},
"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": 4274
}
},
"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
}
}
]
},
"coordinate_system": {
"subtype": "Cartesian",
"axis": [
{
"name": "Easting",
"abbreviation": "X",
"direction": "east",
"unit": "metre"
},
{
"name": "Northing",
"abbreviation": "Y",
"direction": "north",
"unit": "metre"
}
]
},
"scope": "Engineering survey, topographic mapping.",
"area": "Portugal - mainland - onshore.",
"bbox": {
"south_latitude": 36.95,
"west_longitude": -9.56,
"north_latitude": 42.16,
"east_longitude": -6.19
},
"id": {
"authority": "EPSG",
"code": 27493
}
}
{'crs_wkt': 'PROJCRS["Datum 73 / Modified Portuguese Grid",BASEGEOGCRS["Datum '
'73",DATUM["Datum 73",ELLIPSOID["International '
'1924",6378388,297,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4274]],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]]],CS[Cartesian,2],AXIS["easting '
'(X)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing '
'(Y)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering '
'survey, topographic mapping."],AREA["Portugal - mainland - '
'onshore."],BBOX[36.95,-9.56,42.16,-6.19]],ID["EPSG",27493]]',
'false_easting': 180.598,
'false_northing': -86.99,
'geographic_crs_name': 'Datum 73',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'Datum 73',
'inverse_flattening': 297.0,
'latitude_of_projection_origin': 39.666666666666664,
'longitude_of_central_meridian': -8.131906111111112,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'Datum 73 / Modified Portuguese Grid',
'reference_ellipsoid_name': 'International 1924',
'scale_factor_at_central_meridian': 1.0,
'semi_major_axis': 6378388.0,
'semi_minor_axis': 6356911.9461279465}