Spatial Awareness 6-3 Short Paper Basics of Geographic Coordinate Systems.docx - 6-3 Short Paper Basics of Geographic Coordinate Systems Coordinate

Spatial Awareness 6-3 Short Paper Basics of Geographic Coordinate Systems.docx

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6-3 Short Paper: Basics of Geographic Coordinate Systems Coordinate systems are very important when creating maps because it is crucial that the reference points on the map are an accurate representation of the spherical globe when implemented onto a flat surface. Map projections are first added to try and recreate the surface of the earth, or a smaller area of the earth, and transfer it from a 3D world to a 2-dimentional plane. The coordinate reference system is then used to connect the surface features to coordinates to create an accurate model. For a coordinate system to represent the area of the world that you are trying to map there are certain properties that need to apply to choose the right one including size, shape, area, distance, and direction. If you wanted to create a map that was an accurate representation of distance, whether you are choosing a smaller area as your map or the entire world, you should select a projection that is designed to preserve distances well. “Such projections, called equidistant projections,
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