I found Clear Dark Sky a while back... but didn't spend a lot of time on it... but there is some really neat data there.
This is an image of the light pollution around the site that I chose to show cloud cover in my link. Needless to say, brighter is worse. You can see the light cross-hair for the Columbian National Scientific Balloon facility in the center of it.
This is an image of the light pollution around the site that I chose to show cloud cover in my link. Needless to say, brighter is worse. You can see the light cross-hair for the Columbian National Scientific Balloon facility in the center of it.
