Figure 5
From: Allometric scaling, size distribution and pattern formation of natural cities
The comparison between MSAs and natural cities. The nighttime light is plotted inside the administrative boundaries of MSAs including (a) Boise City-Mountain Home-Ontario (ID-OR); (b) Omaha-Council Bluffs-Fremont (NE-IA) and Lincoln-Beatrice (NE); and (c) Columbus-Marion-Zanesville (OH), Dayton-Springfield-Sidney (OH), and Cincinnati-Wilmington-Maysville (OH-KY-IN). Only the nighttime light in (c) is cut off by the low light threshold with DNth=4.
