![]() ![]() Naturally for areas that span more than one UTM zone, the distortion and error increase. The Mercator and Transverse Mercator projections are conformal projections. In a conformal projection local angles are preserved and shapes are represented accurately and without distortion for small areas. As a result of preserving angles and shapes, area or size of features are distorted in these maps. UTM grid zones on a projected map of the world © Wikimedia Commons UTM Zone As mentioned, choosing a secant projection and a narrow zone minimizes the distortions in a map generated from UTM projection. UTM zones are numbered from 1 to 60 starting from 180° longitude at the International Date Line and proceeding eastward. Therefore Zone 1 lies between 180°W to 174°W longitude lines, Zone 2 is between 174°W and 168°W longitude lines, and Zone 60 lies between 174☎ and 180° (International Date Line) longitude lines. UTM Zone - northern hemisphere © Wikimedia CommonsĮach zone is divided into horizontal bands 8° of latitude wide. The 20 bands are labeled with letters, beginning with C and ending with X from south to north.
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