Data source: OGP
Information source: OGP
Revision date: 2014-04-22
Scope: Visualisation of initial concept in civil engineering design (see remarks).
Remarks: Note: for preliminary concept visualisation only. Detailed design will require use of appropriate local projected and vertical CRSs.
Area of use: World.
Center coordinates
0.00000000 0.00000000
Projected bounds:
-3.13984732 -1.48352986
3.13984732 1.48352986
WGS84 bounds:
-180.0 -90.0
180.0 90.0
Definition: Well Known Text (WKT)
COMPD_CS["unnamed + Unnamed Vertical Datum", PROJCS["unnamed", GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]], TOWGS84[0,0,0,0,0,0,0], AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9108"]], AUTHORITY["EPSG","4326"]], PROJECTION["Mercator_1SP"], PARAMETER["central_meridian",0], PARAMETER["scale_factor",1], PARAMETER["false_easting",0], PARAMETER["false_northing",0], UNIT["Meter",1], AUTHORITY["EPSG","6871"]], VERT_CS["Unnamed", VERT_DATUM["Unnamed",2005, EXTENSION["PROJ4_GRIDS","egm08_25.gtx"]], UNIT["Meter",1.0], AXIS["Up",UP]], AUTHORITY["epsg","6871"]]
COMPD_CS["unnamed + Unnamed Vertical Datum", PROJCS["unnamed", GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]], TOWGS84[0,0,0,0,0,0,0], AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9108"]], AUTHORITY["EPSG","4326"]], PROJECTION["Mercator_1SP"], PARAMETER["central_meridian",0], PARAMETER["scale_factor",1], PARAMETER["false_easting",0], PARAMETER["false_northing",0], UNIT["Meter",1], AUTHORITY["EPSG","6871"]], VERT_CS["Unnamed", VERT_DATUM["Unnamed",2005, EXTENSION["PROJ4_GRIDS","egm08_25.gtx"]], UNIT["Meter",1.0], AXIS["Up",UP]], AUTHORITY["epsg","6871"]]
Definition: ESRI WKT
PROJCS["Mercator",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Mercator"],PARAMETER["central_meridian",0],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["Meter",1],PARAMETER["standard_parallel_1",0.0]]
Definition: OGC GML
<?xml version="1.0" encoding="UTF-8"?> <gml:CompoundCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="ogp-crs-6871"> <gml:metaDataProperty> <epsg:CommonMetaData> <epsg:type>compound</epsg:type> <epsg:informationSource>OGP</epsg:informationSource> <epsg:revisionDate>2014-04-22</epsg:revisionDate> <epsg:changes> <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2014.014" /> <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2014.033" /></epsg:changes> <epsg:show>true</epsg:show> <epsg:isDeprecated>true</epsg:isDeprecated> </epsg:CommonMetaData> </gml:metaDataProperty> <gml:identifier codeSpace="OGP">urn:ogc:def:crs:EPSG::6871</gml:identifier> <gml:name>WGS 84 / Pseudo-Mercator + EGM2008 geoid height</gml:name> <gml:remarks>Note: for preliminary concept visualisation only. Detailed design will require use of appropriate local projected and vertical CRSs.</gml:remarks> <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1262" /> <gml:scope>Visualisation of initial concept in civil engineering design (see remarks).</gml:scope> <gml:componentReferenceSystem xlink:href="urn:ogc:def:crs:EPSG::3857" /> <gml:componentReferenceSystem xlink:href="urn:ogc:def:crs:EPSG::3855" /> </gml:CompoundCRS>
<?xml version="1.0" encoding="UTF-8"?> <gml:CompoundCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="ogp-crs-6871"> <gml:metaDataProperty> <epsg:CommonMetaData> <epsg:type>compound</epsg:type> <epsg:informationSource>OGP</epsg:informationSource> <epsg:revisionDate>2014-04-22</epsg:revisionDate> <epsg:changes> <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2014.014" /> <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2014.033" /></epsg:changes> <epsg:show>true</epsg:show> <epsg:isDeprecated>true</epsg:isDeprecated> </epsg:CommonMetaData> </gml:metaDataProperty> <gml:identifier codeSpace="OGP">urn:ogc:def:crs:EPSG::6871</gml:identifier> <gml:name>WGS 84 / Pseudo-Mercator + EGM2008 geoid height</gml:name> <gml:remarks>Note: for preliminary concept visualisation only. Detailed design will require use of appropriate local projected and vertical CRSs.</gml:remarks> <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1262" /> <gml:scope>Visualisation of initial concept in civil engineering design (see remarks).</gml:scope> <gml:componentReferenceSystem xlink:href="urn:ogc:def:crs:EPSG::3857" /> <gml:componentReferenceSystem xlink:href="urn:ogc:def:crs:EPSG::3855" /> </gml:CompoundCRS>
Definition: XML
<?xml version="1.0" encoding="UTF-8"?> <gml:ProjectedCRS gml:id="ogrcrs14197" xmlns:gml="http://www.opengis.net/gml/3.2"> <gml:srsName>unnamed</gml:srsName> <gml:srsID> <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">6871</gml:name> </gml:srsID> <gml:baseCRS> <gml:GeographicCRS gml:id="ogrcrs14198"> <gml:srsName>WGS 84</gml:srsName> <gml:srsID> <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4326</gml:name> </gml:srsID> <gml:usesEllipsoidalCS> <gml:EllipsoidalCS gml:id="ogrcrs14199"> <gml:csName>ellipsoidal</gml:csName> <gml:csID> <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">6402</gml:name> </gml:csID> <gml:usesAxis> <gml:CoordinateSystemAxis gml:id="ogrcrs14200" gml:uom="urn:ogc:def:uom:EPSG::9102"> <gml:name>Geodetic latitude</gml:name> <gml:axisID> <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9901</gml:name> </gml:axisID> <gml:axisAbbrev>Lat</gml:axisAbbrev> <gml:axisDirection>north</gml:axisDirection> </gml:CoordinateSystemAxis> </gml:usesAxis> <gml:usesAxis> <gml:CoordinateSystemAxis gml:id="ogrcrs14201" gml:uom="urn:ogc:def:uom:EPSG::9102"> <gml:name>Geodetic longitude</gml:name> <gml:axisID> <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9902</gml:name> </gml:axisID> <gml:axisAbbrev>Lon</gml:axisAbbrev> <gml:axisDirection>east</gml:axisDirection> </gml:CoordinateSystemAxis> </gml:usesAxis> </gml:EllipsoidalCS> </gml:usesEllipsoidalCS> <gml:usesGeodeticDatum> <gml:GeodeticDatum gml:id="ogrcrs14202"> <gml:datumName>WGS_1984</gml:datumName> <gml:datumID> <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6326</gml:name> </gml:datumID> <gml:usesPrimeMeridian> <gml:PrimeMeridian gml:id="ogrcrs14203"> <gml:meridianName>Greenwich</gml:meridianName> <gml:meridianID> <gml:name gml:codeSpace="urn:ogc:def:meridian:EPSG::">8901</gml:name> </gml:meridianID> <gml:greenwichLongitude> <gml:angle gml:uom="urn:ogc:def:uom:EPSG::9102">0</gml:angle> </gml:greenwichLongitude> </gml:PrimeMeridian> </gml:usesPrimeMeridian> <gml:usesEllipsoid> <gml:Ellipsoid gml:id="ogrcrs14204"> <gml:ellipsoidName>WGS 84</gml:ellipsoidName> <gml:ellipsoidID> <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7030</gml:name> </gml:ellipsoidID> <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6378137</gml:semiMajorAxis> <gml:secondDefiningParameter> <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">298.257223563</gml:inverseFlattening> </gml:secondDefiningParameter> </gml:Ellipsoid> </gml:usesEllipsoid> </gml:GeodeticDatum> </gml:usesGeodeticDatum> </gml:GeographicCRS> </gml:baseCRS> <gml:definedByConversion> <gml:Conversion gml:id="ogrcrs14205" /> </gml:definedByConversion> <gml:usesCartesianCS> <gml:CartesianCS gml:id="ogrcrs14206"> <gml:csName>Cartesian</gml:csName> <gml:csID> <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">4400</gml:name> </gml:csID> <gml:usesAxis> <gml:CoordinateSystemAxis gml:id="ogrcrs14207" gml:uom="urn:ogc:def:uom:EPSG::9001"> <gml:name>Easting</gml:name> <gml:axisID> <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9906</gml:name> </gml:axisID> <gml:axisAbbrev>E</gml:axisAbbrev> <gml:axisDirection>east</gml:axisDirection> </gml:CoordinateSystemAxis> </gml:usesAxis> <gml:usesAxis> <gml:CoordinateSystemAxis gml:id="ogrcrs14208" gml:uom="urn:ogc:def:uom:EPSG::9001"> <gml:name>Northing</gml:name> <gml:axisID> <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9907</gml:name> </gml:axisID> <gml:axisAbbrev>N</gml:axisAbbrev> <gml:axisDirection>north</gml:axisDirection> </gml:CoordinateSystemAxis> </gml:usesAxis> </gml:CartesianCS> </gml:usesCartesianCS> </gml:ProjectedCRS>
<?xml version="1.0" encoding="UTF-8"?> <gml:ProjectedCRS gml:id="ogrcrs14197" xmlns:gml="http://www.opengis.net/gml/3.2"> <gml:srsName>unnamed</gml:srsName> <gml:srsID> <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">6871</gml:name> </gml:srsID> <gml:baseCRS> <gml:GeographicCRS gml:id="ogrcrs14198"> <gml:srsName>WGS 84</gml:srsName> <gml:srsID> <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">4326</gml:name> </gml:srsID> <gml:usesEllipsoidalCS> <gml:EllipsoidalCS gml:id="ogrcrs14199"> <gml:csName>ellipsoidal</gml:csName> <gml:csID> <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">6402</gml:name> </gml:csID> <gml:usesAxis> <gml:CoordinateSystemAxis gml:id="ogrcrs14200" gml:uom="urn:ogc:def:uom:EPSG::9102"> <gml:name>Geodetic latitude</gml:name> <gml:axisID> <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9901</gml:name> </gml:axisID> <gml:axisAbbrev>Lat</gml:axisAbbrev> <gml:axisDirection>north</gml:axisDirection> </gml:CoordinateSystemAxis> </gml:usesAxis> <gml:usesAxis> <gml:CoordinateSystemAxis gml:id="ogrcrs14201" gml:uom="urn:ogc:def:uom:EPSG::9102"> <gml:name>Geodetic longitude</gml:name> <gml:axisID> <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9902</gml:name> </gml:axisID> <gml:axisAbbrev>Lon</gml:axisAbbrev> <gml:axisDirection>east</gml:axisDirection> </gml:CoordinateSystemAxis> </gml:usesAxis> </gml:EllipsoidalCS> </gml:usesEllipsoidalCS> <gml:usesGeodeticDatum> <gml:GeodeticDatum gml:id="ogrcrs14202"> <gml:datumName>WGS_1984</gml:datumName> <gml:datumID> <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6326</gml:name> </gml:datumID> <gml:usesPrimeMeridian> <gml:PrimeMeridian gml:id="ogrcrs14203"> <gml:meridianName>Greenwich</gml:meridianName> <gml:meridianID> <gml:name gml:codeSpace="urn:ogc:def:meridian:EPSG::">8901</gml:name> </gml:meridianID> <gml:greenwichLongitude> <gml:angle gml:uom="urn:ogc:def:uom:EPSG::9102">0</gml:angle> </gml:greenwichLongitude> </gml:PrimeMeridian> </gml:usesPrimeMeridian> <gml:usesEllipsoid> <gml:Ellipsoid gml:id="ogrcrs14204"> <gml:ellipsoidName>WGS 84</gml:ellipsoidName> <gml:ellipsoidID> <gml:name gml:codeSpace="urn:ogc:def:ellipsoid:EPSG::">7030</gml:name> </gml:ellipsoidID> <gml:semiMajorAxis gml:uom="urn:ogc:def:uom:EPSG::9001">6378137</gml:semiMajorAxis> <gml:secondDefiningParameter> <gml:inverseFlattening gml:uom="urn:ogc:def:uom:EPSG::9201">298.257223563</gml:inverseFlattening> </gml:secondDefiningParameter> </gml:Ellipsoid> </gml:usesEllipsoid> </gml:GeodeticDatum> </gml:usesGeodeticDatum> </gml:GeographicCRS> </gml:baseCRS> <gml:definedByConversion> <gml:Conversion gml:id="ogrcrs14205" /> </gml:definedByConversion> <gml:usesCartesianCS> <gml:CartesianCS gml:id="ogrcrs14206"> <gml:csName>Cartesian</gml:csName> <gml:csID> <gml:name gml:codeSpace="urn:ogc:def:cs:EPSG::">4400</gml:name> </gml:csID> <gml:usesAxis> <gml:CoordinateSystemAxis gml:id="ogrcrs14207" gml:uom="urn:ogc:def:uom:EPSG::9001"> <gml:name>Easting</gml:name> <gml:axisID> <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9906</gml:name> </gml:axisID> <gml:axisAbbrev>E</gml:axisAbbrev> <gml:axisDirection>east</gml:axisDirection> </gml:CoordinateSystemAxis> </gml:usesAxis> <gml:usesAxis> <gml:CoordinateSystemAxis gml:id="ogrcrs14208" gml:uom="urn:ogc:def:uom:EPSG::9001"> <gml:name>Northing</gml:name> <gml:axisID> <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9907</gml:name> </gml:axisID> <gml:axisAbbrev>N</gml:axisAbbrev> <gml:axisDirection>north</gml:axisDirection> </gml:CoordinateSystemAxis> </gml:usesAxis> </gml:CartesianCS> </gml:usesCartesianCS> </gml:ProjectedCRS>
Definition: GeoServer
6871=COMPD_CS["unnamed + Unnamed Vertical Datum",PROJCS["unnamed",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]],AUTHORITY["EPSG","4326"]],PROJECTION["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["Meter",1],AUTHORITY["EPSG","6871"]],VERT_CS["Unnamed",VERT_DATUM["Unnamed",2005,EXTENSION["PROJ4_GRIDS","egm08_25.gtx"]],UNIT["Meter",1.0],AXIS["Up",UP]],AUTHORITY["epsg","6871"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +geoidgrids=egm08_25.gtx +vunits=m +no_defs"> <Layer srs="+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +geoidgrids=egm08_25.gtx +vunits=m +no_defs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6871, 'EPSG', 6871, '+proj=merc +lon_0=0 +k=1 +x_0=0 +y_0=0 +ellps=WGS84 +towgs84=0,0,0,0,0,0,0 +units=m +geoidgrids=egm08_25.gtx +vunits=m +no_defs ', 'COMPD_CS["unnamed + Unnamed Vertical Datum",PROJCS["unnamed",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]],AUTHORITY["EPSG","4326"]],PROJECTION["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["Meter",1],AUTHORITY["EPSG","6871"]],VERT_CS["Unnamed",VERT_DATUM["Unnamed",2005,EXTENSION["PROJ4_GRIDS","egm08_25.gtx"]],UNIT["Meter",1.0],AXIS["Up",UP]],AUTHORITY["epsg","6871"]]');
Definition: OGC WKT
COMPD_CS["unnamed + Unnamed Vertical Datum",PROJCS["unnamed",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]],AUTHORITY["EPSG","4326"]],PROJECTION["Mercator_1SP"],PARAMETER["central_meridian",0],PARAMETER["scale_factor",1],PARAMETER["false_easting",0],PARAMETER["false_northing",0],UNIT["Meter",1],AUTHORITY["EPSG","6871"]],VERT_CS["Unnamed",VERT_DATUM["Unnamed",2005,EXTENSION["PROJ4_GRIDS","egm08_25.gtx"]],UNIT["Meter",1.0],AXIS["Up",UP]],AUTHORITY["epsg","6871"]]