Universal Transverse Mercator 

Release 9.2
Last modified August 3, 2007 
Print all topics in : "Supported map projections" 
Universal Transverse Mercator (UTM) system is a specialized application of the Transverse Mercator projection. The globe is divided into 60 north and south zones, each spanning 6° of longitude. Each zone has its own central meridian. Zones 1N and 1S start at 180° W. The limits of each zone are 84° N and 80° S, with the division between north and south zones occurring at the equator. The polar regions use the Universal Polar Stereographic coordinate system.
Learn more about the Transverse Mercator projection
Learn more about the Universal Polar Stereographic coordinate system
The origin for each zone is its central meridian and the equator. To eliminate negative coordinates, the coordinate system alters the coordinate values at the origin. The value given to the central meridian is the false easting, and the value assigned to the equator is the false northing. A false easting of 500,000 meters is applied. A north zone has a false northing of zero, while a south zone has a false northing of 10,000,000 meters.
Cylindrical projection. See the Transverse Mercator projection for the methodology.
Learn about the Transverse Mercator projection
Two lines parallel to and approximately 180 km to each side of the central meridian of the UTM zone.
The central meridian and the equator.
Designed for a scale error not exceeding 0.1 percent within each zone. Error and distortion increase for regions that span more than one UTM zone. UTM is not designed for areas that span more than a few zones.
Data on a spheroid or an ellipsoid cannot be projected beyond 90° from the central meridian. In fact, the extent on a spheroid or ellipsoid should be limited to 15–20° on both sides of the central meridian. Beyond that range, data projected to the Transverse Mercator projection may not project back to the same position. Data on a sphere does not have these limitations.
Learn more about the Transverse Mercator projection
A new implementation called Transverse_Mercator_complex has been added to the Projection Engine. It accurately projects to and from Transverse Mercator up to 80° from the central meridian. Because of the more complex mathematics involved, performance is affected.
Used for United States topographic quadrangles, 1:100,000 scale.
Many countries use local UTM zones based on the official geographic coordinate systems in use.
Largescale topographic mapping of the former Soviet Union.