geographic 2D B.3 in OGC 06-042. 2004年01月20日 true false https://www.opengis.net/def/crs/OGC/1.3/CRS84 https://www.opengis.net/def/crs/OGC/1.3/CRS84 WGS 84 longitude-latitude World. -180 180 -90 90 OGP 2001年06月05日 false false https://www.opengis.net/def/area/EPSG/0/1262 World Horizontal component of 3D system. . ellipsoidal OGP 2015年05月22日 true false https://www.opengis.net/def/cs/EPSG/9.8.15/6424 Ellipsoidal 2D CS. Axes: longitude, latitude. Orientations: east, north. UoM: degree Used in geog2D CRSs for some web mapping: CS code 6422 recommended. Coordinates referenced to this CS are in degrees. Any degree representation (e.g. DMSH, decimal, etc.) may be used but that used must be declared for the user by the supplier of data. https://www.opengis.net/def/axis/EPSG/9.8.15/220 Lon east https://www.opengis.net/def/axis/EPSG/9.8.15/221 Lat north geodetic NIMA TR8350.2 June 2004 revision. http://earth-info.nga.mil/GandG/publications/tr8350.2/tr8350_2.html and http://gis-lab.info/docs/nima-tr8350.2-addendum.pdf. Also NGA.STND.0036_1.0.0_WGS84 of 2014年07月08日. 2017年07月14日 true false https://www.opengis.net/def/datum/EPSG/0/6326 World Geodetic System 1984 EPSG::6326 has been the then current realization. No distinction is made between the original and subsequent (G730, G873, G1150, G1674 and G1762) WGS 84 frames. Since 1997, WGS 84 has been maintained within 10cm of the then current ITRF. World. -180 180 -90 90 OGP 2001年06月05日 false false https://www.opengis.net/def/area/EPSG/0/1262 World Satellite navigation. Defined through a consistent set of station coordinates. These have changed with time: by 0.7m on 1994年06月29日 (G730), a further 0.2m on 1997年01月29日 (G873), 0.06m on 2002年01月20日 (G1150), 0.2m on 2012年02月08日 (G1674) and 0.02m on 2013年10月16日 (G1762). OGP 2016年12月15日 true false https://www.opengis.net/def/meridian/EPSG/0/8901 Greenwich The international reference meridian as defined first by the 1884 International Meridian Conference and later by the Bureau International de l'Heure (BIH) and then the International Earth Rotation Service (IERS). 0 DMA Technical Manual 8350.2-B 2015年11月25日 true false https://www.opengis.net/def/ellipsoid/EPSG/0/7030 WGS 84 1/f derived from four defining parameters semi-major axis; C20 = -484.16685*10e-6; earth's angular velocity ? = 7292115e-11 rad/sec; gravitational constant GM = 3986005e8 m*m*m/s/s. In 1994 new GM = 3986004.418e8 m*m*m/s/s but a and 1/f retained. 6378137 298.257223563