There’s nothing new about density maps. But this one, Dencity, is perhaps clearer and mor interesting than most. From the Dencity site:
Dencity maps population density using circles of various size and hue. Larger, darker circles show areas with fewer people, while smaller, brighter circles highlight crowded cities. Representing denser areas with smaller circles results in additional geographic detail where there are more people, while sparsely populated areas are more vaguely defined.
There is not a whole lot that you can tell about this map from the web site. For the entire story, you have to fork over the $30 for the poster, which might actually be a nice addition to a geography classroom. What I found interesting were some of the explanations by cutouts, that “China is home to six of the twenty most populous cities in the world,” that India and Pakistan’s “Delhi and Karachi are the second and third most populous cities in the world.”
They do not actually explain in the blog post, but this map appears to have a dot for every (some number) people. So populated areas have many more smaller dots, where spacely populated spaces are illustrated by larger dots.
I wonder what this map might look like if the dots were all the same size.
FlowingData Blog Post: http://goo.gl/F20FS
Fatham Web Page: http://goo.gl/O93BP
(Sent from Flipboard)