World wide, including Australia, this UTM system is used by mapping agencies for local and national, topographic maps. In most situations, the front projection will be clearer, easier to set up, and better on space. They are therefore related to cylindrical projections in which meridians are straight instead of curved. This is a conformal projection in that shapes are well preserved over the map, although extreme distortions do occur towards the edge of the map. The Mercator projection is a cylindrical map projection presented by the Flemish geographer and cartographer Gerardus Mercator in 1569. As is explained in the section tiled Explaining Some Jargon Graticules and Grids there is a significant difference between the two. This is done by projecting the earth's surface onto a cone or cylinder, and then unrolling it. That means the information is more readily available to travel correctly without constant recalculations to ensure one is on the correct path. But opting out of some of these cookies may affect your browsing experience. What are the physical state of oxygen at room temperature? Therefore it is easy to measure distances using a grid it removes the foibles of distortions inherent in each map projection. The UTM system consists of 60 zones, each 6-degrees of longitude in width. Disadvantages of Conic Projections. When you place a cone on the Earth and unwrap it, this results in a conic projection. The projection is best suited for land masses extending in an east-to-west orientation at mid-latitudes. project as points at the projection's edge. What is one reason cylindrical maps are useful? Some preserve area, some shape, and some true distance along their meridians. Commonly Used Map Projections | Intergovernmental Committee on - ICSM One advantage to cylindrical projections is that parallels and meridians form a grid, which makes locating positions easier.
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