Contents
How many projection zones does UTM have?
60 zones
The UTM system consists of 60 zones, each 6-degrees of longitude in width. The zones are numbered 1-60, beginning at 180-degrees longitude and increasing to the east.
Which zone of UTM coordinate system used to define projected coordinate system?
Universal Transverse Mercator (UTM) coordinate system is a standard set of map projections with a central meridian for each six-degree wide UTM zone. The transverse Mercator map projection is an adaptation of the standard Mercator projection which flips the cylinder 90 degrees (transverse).
What is the projection aspect of the UTM system?
The Universal Transverse Mercator (UTM) is a map projection system for assigning coordinates to locations on the surface of the Earth. Like the traditional method of latitude and longitude, it is a horizontal position representation, which means it ignores altitude and treats the earth as a perfect ellipsoid.
How are the coordinates expressed in the UTM system?
A square grid is superimposed on each zone. It’s aligned so that vertical grid lines are parallel to the center of the zone, called the central meridian. UTM grid coordinates are expressed as a distance in meters to the east, referred to as the “easting”, and a distance in meters to the north, referred to as the “northing”.
Where are the UTM zones located in the polar region?
In the polar regions the Universal Polar Stereographic (UPS) grid system is used. UTM zones are numbered 1 through 60, starting at the international date line, longitude 180°, and proceeding east. Zone 1 extends from 180° W to 174° W and is centered on 177° W.
How is the UTM based on the Transverse Mercator projection?
UTM Projection. As the name suggests, the Universal Transverse Mercator projection is based on the cylindrical Transverse Mercator projection. The cylinder in the Transverse Mercator projection is tangent along a meridian (line of longitude) or it is secant, in which case it cuts through the earth at two standard meridians.
How are geographic coordinates converted to plane coordinates?
These geographic coordinates are converted to plane coordinates by means of map projections. The UTM coordinate system is a universally used plane coordinate system (except for polar regions).