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Does anybody know why or how areas on Google Earth become "darkened"? This is not in reference to deliberate places on the maps that are obfuscated by a government agency's request.

For instance, in google maps, type in: 1398 road H, Garberville, CA. Then switch to Earth view and zoom out a ways. A specific affected darkened area emerges. I am wondering if anybody knows what technically causes this?

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  • Can you post a screenshot?
    – Wutnaut
    Jul 24, 2014 at 19:24
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    @Wutnaut just open maps.google.com and paste 1398 road H, Garberville, CA. into the address and zoom out a bit. It shows a darkened triangle.
    – LPChip
    Jul 24, 2014 at 20:24
  • I think these images were taken at night and the others at daytime and Google paste these together to get the whole image. Normally they would use daytime images but perhaps of that specific area at that specific altitude they didn't have daytime images available.
    – Rik
    Jul 24, 2014 at 23:04
  • The day vs night concept was my initial guess, however, it would seem like this anomaly should be more frequent then? Jul 24, 2014 at 23:31
  • Well, I think they have lots of images of multiple passes but if there was something wrong with the daytime image of just that particularly area they needed to fallback on a nighttime image. I don't think it happens that often so they have daytime images of almost 99% of everything. (That's my guess)
    – Rik
    Jul 24, 2014 at 23:48

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