Military grid reference system maps8/25/2023 ![]() One meridian is designated as the prime meridian. A second set of rings around the globe at right angles to lines of latitude and passing through the poles is known as meridians of longitude or simply meridians. ![]() Lines of latitude run east-west but north-south distances are measured between them.ī. The rings around the earth parallel to the equator are called parallels of latitude or simply parallels. The distance of a point north or south of the equator is known as its latitude. By drawing a set of east-west rings around the globe (parallel to the equator), and a set of north-south rings crossing the equator at right angles and converging at the poles, a network of reference lines is formed from which any point on the earth's surface can be located.Ī. One of the oldest systematic methods of location is based upon the geographic coordinate system. To cope with this problem, a uniform and precise system of referencing has been developed. ![]() ![]() However, finding locations in undeveloped areas or in unfamiliar parts of the world can be a problem. In a city, it is quite simple to find a location the streets are named and the buildings have numbers. ![]()
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