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Is it a rendering artifact or something, that the left half of the United States is entirely darker than the right half? Like a line was drawn down the middle.
by JoeAltmaier 6y ago
Is it a rendering artifact or something, that the left half of the United States is entirely darker than the right half? Like a line was drawn down the middle.
- Zircom 6y agoNope, just that the western US is less densely populated than the eastern side of the country and that is directly reflected in the amount of light pollution.
- JoeAltmaier 6y agoIn a straight line right down the middle? I wonder if its political, weather-related or what.
- lolinder 6y agoNope, if you look at a population density map it has the same line. I'm not at all sure why that's true, geographically.
- mahogany 6y agoI think that's roughly the beginning of the Great Plains. I would guess the population density drops significantly because of farmland and ranching.
- lolinder 6y agoYeah, that seems right, but it's bizarre how straight up-and-down it is. I can see why GP thought that it looked artificial.
- davidcuddeback 6y agoNo. https://media.sciencephoto.com/image/c0249398/800wm/C0249398-USA_at_night,_satellite_image.jpg https://media.sciencephoto.com/image/c0249398/800wm/C0249398...
- rufus_foreman 6y ago100th meridian, it's all about water: https://www.thoughtco.com/100th-meridian-of-earth-1435087 https://www.thoughtco.com/100th-meridian-of-earth-1435087