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| Geodesy |
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| Fundamentals |
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| Concepts |
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| Technologies |
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| Standards |
| ED50 |
European Datum 1950 |
| SAD69 |
South American Datum 1969 |
| GRS 80 |
Geodetic Reference System 1980 |
| NAD83 |
North American Datum 1983 |
| WGS84 |
World Geodetic System 1984 |
| NAVD88 |
N. American Vertical Datum 1988 |
| ETRS89 |
European Terrestrial Reference
System 1989 |
| GCJ-02 |
Chinese encrypted datum 2002 |
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| History |
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Jordan Transverse Mercator (JTM) is a grid system created by the Royal Jordan Geographic Center (RJGC). This system is based on 6° belts with a Central Meridian of 37° East and a Scale Factor at Origin (mo) = 0.9998. The JTM is based on the Hayford ellipsoid adopted by the IUGG in 1924. No transformation parameters are presently offered by the government.[1] However, Prof. Steven H. Savage of Arizona State University figured out that the JTM has a False Easting of 500 km, a False Northing of –3,000 km, and the three-parameter transformation to WGS84 is: ΔX = –86 meters, ΔY = –98 meters, and ΔZ = –119 meters.
Prof. Savage also offers software, ReprojectME!, which will convert coordinates between JTM and other systems. (See http://daahl.ucsd.edu/gaialab/# for more information.)
See also
References
- ↑ Grids & Datums—Hashemite Kingdom of Jordan Article by Clifford J. Mugnier, C.P., C.M.S. [1]
External links
