EPSG:3901 — KKJ / Finland Uniform Coordinate System + N60 height

Compound · Finland - onshore

Export Formats

OGC WKT

COMPD_CS[
    "KKJ / Finland Uniform Coordinate System + N60 height",
    PROJCS[
        "KKJ / Finland Uniform Coordinate System",
        GEOGCS[
            "KKJ",
            DATUM[
                "Kartastokoordinaattijarjestelma_1966",
                SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],
                AUTHORITY["EPSG","6123"]
            ],
            PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
            UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
            AUTHORITY["EPSG","4123"]
        ],
        PROJECTION["Transverse_Mercator"],
        PARAMETER["latitude_of_origin",0],
        PARAMETER["central_meridian",27],
        PARAMETER["scale_factor",1],
        PARAMETER["false_easting",3500000],
        PARAMETER["false_northing",0],
        UNIT["metre",1,AUTHORITY["EPSG","9001"]],
        AUTHORITY["EPSG","2393"]
    ],
    VERT_CS[
        "N60 height",
        VERT_DATUM["Helsinki 1960",2005,AUTHORITY["EPSG","5116"]],
        UNIT["metre",1,AUTHORITY["EPSG","9001"]],
        AXIS["Gravity-related height",UP],
        AUTHORITY["EPSG","5717"]
    ],
    AUTHORITY["EPSG","3901"]
]

WKT2

COMPOUNDCRS[
    "KKJ / Finland Uniform Coordinate System + N60 height",
    PROJCRS[
        "KKJ / Finland Uniform Coordinate System",
        BASEGEOGCRS[
            "KKJ",
            DATUM[
                "Kartastokoordinaattijarjestelma (1966)",
                ELLIPSOID[
                    "International 1924",
                    6378388,
                    297,
                    LENGTHUNIT["metre",1,ID["EPSG",9001]],
                    ID["EPSG",7022]
                ],
                ID["EPSG",6123]
            ],
            ID["EPSG",4123]
        ],
        CONVERSION[
            "Finland Uniform Coordinate System",
            METHOD["Transverse Mercator",ID["EPSG",9807]],
            PARAMETER[
                "Latitude of natural origin",
                0,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8801]
            ],
            PARAMETER[
                "Longitude of natural origin",
                27,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8802]
            ],
            PARAMETER[
                "Scale factor at natural origin",
                1,
                SCALEUNIT["unity",1,ID["EPSG",9201]],
                ID["EPSG",8805]
            ],
            PARAMETER[
                "False easting",
                3500000,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",8806]
            ],
            PARAMETER[
                "False northing",
                0,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",8807]
            ],
            ID["EPSG",18193]
        ],
        CS[Cartesian,2,ID["EPSG",4530]],
        AXIS["Northing (X)",north],
        AXIS["Easting (Y)",east],
        LENGTHUNIT["metre",1,ID["EPSG",9001]],
        ID["EPSG",2393]
    ],
    VERTCRS[
        "N60 height",
        VDATUM["Helsinki 1960",ID["EPSG",5116]],
        CS[vertical,1,ID["EPSG",6499]],
        AXIS["Gravity-related height (H)",up],
        LENGTHUNIT["metre",1,ID["EPSG",9001]],
        ID["EPSG",5717]
    ],
    ID["EPSG",3901]
]

PROJ.4

+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=3500000 +y_0=0 +ellps=intl +units=m +vunits=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:3901", "+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=3500000 +y_0=0 +ellps=intl +units=m +vunits=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 3901,
  "name": "KKJ / Finland Uniform Coordinate System + N60 height",
  "kind": "compound",
  "area": "Finland - onshore",
  "unit": null,
  "bbox": [
    59.75,
    19.24,
    70.09,
    31.59
  ],
  "proj4": "+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=3500000 +y_0=0 +ellps=intl +units=m +vunits=m +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3901, 'EPSG', 3901, '+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=3500000 +y_0=0 +ellps=intl +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["KKJ / Finland Uniform Coordinate System + N60 height",PROJCS["KKJ / Finland Uniform Coordinate System",GEOGCS["KKJ",DATUM["Kartastokoordinaattijarjestelma_1966",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6123"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4123"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",27],PARAMETER["scale_factor",1],PARAMETER["false_easting",3500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2393"]],VERT_CS["N60 height",VERT_DATUM["Helsinki 1960",2005,AUTHORITY["EPSG","5116"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5717"]],AUTHORITY["EPSG","3901"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=27"
  "+k=1"
  "+x_0=3500000"
  "+y_0=0"
  "+ellps=intl"
  "+units=m"
  "+vunits=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

3901=COMPD_CS["KKJ / Finland Uniform Coordinate System + N60 height",PROJCS["KKJ / Finland Uniform Coordinate System",GEOGCS["KKJ",DATUM["Kartastokoordinaattijarjestelma_1966",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6123"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4123"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",27],PARAMETER["scale_factor",1],PARAMETER["false_easting",3500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2393"]],VERT_CS["N60 height",VERT_DATUM["Helsinki 1960",2005,AUTHORITY["EPSG","5116"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5717"]],AUTHORITY["EPSG","3901"]]

Frequently Asked Questions

How do I add EPSG:3901 to GeoServer?

Add the following definition to your GeoServer configuration:

3901=COMPD_CS["KKJ / Finland Uniform Coordinate System + N60 height",PROJCS["KKJ / Finland Uniform Coordinate System",GEOGCS["KKJ",DATUM["Kartastokoordinaattijarjestelma_1966",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6123"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4123"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",27],PARAMETER["scale_factor",1],PARAMETER["false_easting",3500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2393"]],VERT_CS["N60 height",VERT_DATUM["Helsinki 1960",2005,AUTHORITY["EPSG","5116"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5717"]],AUTHORITY["EPSG","3901"]]

Read the full GeoServer guide →

How do I add EPSG:3901 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (3901, 'EPSG', 3901, '+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=3500000 +y_0=0 +ellps=intl +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["KKJ / Finland Uniform Coordinate System + N60 height",PROJCS["KKJ / Finland Uniform Coordinate System",GEOGCS["KKJ",DATUM["Kartastokoordinaattijarjestelma_1966",SPHEROID["International 1924",6378388,297,AUTHORITY["EPSG","7022"]],AUTHORITY["EPSG","6123"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4123"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",27],PARAMETER["scale_factor",1],PARAMETER["false_easting",3500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","2393"]],VERT_CS["N60 height",VERT_DATUM["Helsinki 1960",2005,AUTHORITY["EPSG","5116"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5717"]],AUTHORITY["EPSG","3901"]]');

Read the full PostGIS guide →

How do I add EPSG:3901 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=0"
  "+lon_0=27"
  "+k=1"
  "+x_0=3500000"
  "+y_0=0"
  "+ellps=intl"
  "+units=m"
  "+vunits=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:3901 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:3901", "+proj=tmerc +lat_0=0 +lon_0=27 +k=1 +x_0=3500000 +y_0=0 +ellps=intl +units=m +vunits=m +no_defs +type=crs");

Read the full Proj4js guide →