Magellan eXplorist XL Manuel d'utilisateur télécharger pdf (Page 78)

UTM coordinates are easy to use, but since the model it is based on is

somewhat abstract, this section is a very simplified introduction to UTM.

Instead of projecting an imaginary grid of intersecting lines onto the globe,

UTM projects sections of the globe onto a flat surface. Each of these

sections is called a “zone.” There are 60 zones to cover the entire earth

between 84˚N and 80˚S (polar areas are not described by UTM). Each

zone is 6˚ wide as projected from the earth’s center.

A UTM position is described by three elements; the zone it is in, the easting,

and the northing. Eastings and northings measure how far into a zone a

position is in meters. Eastings are an east/west measurement, and

correspond roughly to longitude. Northings are a north/south

measurement, and correspond to latitude.

This chart shows the position of Magellan Systems described in both Lat/

Lon and UTM coordinates.

LAT/LON UTM

DEG/MIN DEG/MIN/SEC

34˚06.58N 34˚06’35"N 11 4 23 818 E

117˚49.56W 117˚49’34"W 37 74 624 N

1511 12 13 14

3000 Km

3000 Mi.

Scale at the Equator.

12345

180°

150°

120° 90°

60°

30°

0°

30°

60°

90°

120°

150°

180°

0°

NOTE: The area described by the UTM coordinate system extends to 84°N and to 80°S.

6789 16171819 21222324 26272829 31323334 36373839 41424344 46474849 51525354 56575859

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 93 94

Darrell 29 Jan 2025 | 03:15:26

Magellan eXplorist XL Manuel d'utilisateur Page 78