This map is an example of a dot distribution map. Here, "dots" are used to show values on a map. For example. This map comes from the U.S. Census Bureau where they track population changes over time. Though it is tough to see, the legend here shows us that one dot represents 7,500 people. Knowing this, we can see that a vast number of people are concentrated on the eastern border of the U.S. Especially in the Northern part. Something really interesting to see is Chicago. In the rest of Illinois, there aren't very many dots, it's rather empty, but as we move into Chicago, we suddenly see a dense population of people. These types of maps are very helpful with giving a visual representation of something that have very large numbers in the data set, such as a population. It really helps to give a striking representation of how many people are populated on coasts, and more strikingly, how many people aren't in the west.
No comments:
Post a Comment