Geographic Coordinate System: Difference between revisions
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* NAD (North American Datum) 1927 and NAD 1988 | * NAD (North American Datum) 1927 and NAD 1988 | ||
* 33 world ellipsoids and a user defined ellipsoid (i.e. Clarke 1866, WGS 1984, etc.) | * 33 world ellipsoids and a user defined ellipsoid (i.e., Clarke 1866, WGS 1984, etc.) | ||
The hemispheres are defined for non-NAD systems. The hemisphere cannot be changed for NAD systems (Northern, Western hemispheres). | The hemispheres are defined for non-NAD systems. The hemisphere cannot be changed for NAD systems (Northern, Western hemispheres). | ||
Revision as of 23:46, 15 November 2011
A Geographic system is a latitude/longitude system defined in decimal degrees. Supported Geographic systems include:
- NAD (North American Datum) 1927 and NAD 1988
- 33 world ellipsoids and a user defined ellipsoid (i.e., Clarke 1866, WGS 1984, etc.)
The hemispheres are defined for non-NAD systems. The hemisphere cannot be changed for NAD systems (Northern, Western hemispheres).
