GEOG 3 Lecture Notes - Lecture 2: Mercator Projection, Gerardus Mercator, International Date Line
29 Jul 2020
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Document Summary
Geographers who specialize in depicting geographic information on maps are called cartographers. Scale on a map refers to the relationship between the size of objects on the map and the actual size they have on the surface of earth. Usually represented by a scale bar but is also sometimes represented by a ration or a fraction, which indicates that one unit of measure on the map equals a particular number of units on the earth itself. The larger the scale of the map, the smaller the area it covers. Objects look larger on a larger-scale map. Different scales of imagery are demonstrated using maps, photographers, and satellite images. It is important to keep the two types of scales used in geography - map scale and scale of analysis - distinct, because they have opposite meanings! In spatial analysis of a region, scale refers to the spatial extent of the area that is being discussed.
