What type of projection is UTM?
UTM is the acronym for Universal Transverse Mercator, a plane coordinate grid system named for the map projection on which it is based (Transverse Mercator). The UTM system consists of 60 zones, each 6-degrees of longitude in width.
What aspect does UTM use?
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.
What are UTM coordinates measured in?
meters
If UTM ticks are shown on a USGS topographic map, the zone is indicated in the credit legend in the lower left corner of the map collar. Within each zone, coordinates are measured as northings and eastings in meters. The northing values are measured from zero at the equator in a northerly direction.
How do I read my GPS coordinates UTM?
When reading a UTM coordinate, your reading should state latitude and then longitude (eastings first, then northings). A useful mnemonic to help you remember this is “along the corridor, then up the stairs.” To unpack these numbers, we have to break the reference down into parts: 18—The zone number.
How big is the UTM zone at the equator?
Each UTM zone spans 6° of longitude, from 84° North and 80° South. Zones taper from 666,000 meters in “width” at the Equator (where 1° of longitude is about 111 kilometers in length) to only about 70,000 meters at 84° North and about 116,000 meters at 80° South. Polar areas are covered by polar coordinate systems.
Can you calculate distance between two UTM zones?
If some points me to extended UTM zones and how it helps, that will also be very helpful. First, let’s confirm what you already seem to know: If there are two different UTM zones, there are effectively two different coordinate reference systems (CRS), and distances between points across the zones cannot be calculated.
How many variations on the UTM projection are there?
Fifty-nine variations on this projection are used to minimize distortion in the other 59 UTM zones. In every case, distortion is no greater than 1 part in 1,000. This means that a 1,000 meter distance measured anywhere within a UTM zone will be no worse than + or – 1 meter off.
Where are polar areas excluded from the UTM system?
Only polar areas–latitudes higher than 84° North and 80° South–are excluded. (Polar coordinate systems are used to specify positions beyond these latitudes.) The UTM system divides the remainder of the Earth’s surface into 60 zones, each spanning 6° of longitude.