WITSML - Geodetic Model Component Schema The name of the coordinate reference system in a particular naming system. An optional short name (code) can also be specified. Specifying a well known system is highly desired. An example would be to specify a name of 'ED50' with a code of '4230' in the 'EPSG' naming system. Note that specifying a name in the EPSG naming system is asserting that the parameters in the EPSG database are appropriate for this CRS. This is also true for any other naming system. If in doubt, contact your local geodesist. Geodetic datum code. This defines a system in the Geoshare naming system and should probably not be used with CRSName. Ellipsoid translation (3). Units are meters by convention. Ellipsoid translation (3). Units are meters by convention. Ellipsoid translation (3). Units are meters by convention. Ellipsoid rotation (3). Seconds of arc by convention. Ellipsoid rotation (3). Seconds of arc by convention. Ellipsoid rotation (3). Seconds of arc by convention. Ellipsoid scale factor. Ellipsoid code (spheroid) defining geographic or planar coordinates. Implied if geodeticDatumCode is specified (and is not user defined). Ellipsoid semi-major axis size. Implied if geodeticDatumCode or ellipsoidCode specified. Ellipsoid inverse flattening value (ie. 1/x). Implied if geodeticDatumCode or ellipsoidCode specified.