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FAQ/ What is UTM Coordinate System?

What is a UTM coordinate system?


A type of map projection.
UTM coordinate system is an abbreviation for Universal Transverse Mercator coordinate system.

The UTM coordinate system expands as follows:

  • 60 divisions in 6 degrees in the latitudinal direction
  • Divided into two at the equator in the latitudinal direction (Northern Hemisphere, Southern Hemisphere)

The UTM zone numbers around Japan are shown in the figure.

Figure: UTM zones around Japan

For example, the eastern Japan is UTM Zone 54N, with an origin of 0° north latitude and 141° east longitude.
The western Japan is UTM Zone 53N, with an origin of 0°N and 135°E.
Kyushu and Okinawa are located in UTM Zone 52N with origins at 0°N and 129°E.

If you select UTM coordinates, a square mesh is created. For example, if you select a mesh size of 100m, you will have a square 100m mesh.
Here, "square" refers to the case where the four points of the mesh are represented in the UTM coordinate system (WGS84). If you specify a point in latitude and longitude and measure the distance or angle between the points, the values will be slightly different for different projected coordinate systems and coordinate reference systems (CRS).

Last update: 2023-03-20