E.g., here we have a night-time satellite photo of Korea in the center with China to the west and Japan to the east. The population of South Korea is 50 million. That of North Korea (outlined in white) is 25 million.
No, the maps are two different things entirely.
Your map is a satellite photo that shows electrical lights at night.
The Daily Mail maps are just maps—not a satellite photo, with each yellow pixel representing a group of humans living there. They are not lights.
“This methodology is not valid everywhere.”
Very good point. Almost a full face slap down.