Using gvSIG to compute light pollution from night satellite images
Light pollution (introduced by humans, directly or indirectly, from artificial light into the environment) is a major issue worldwide, particularly in urban areas. It increases the sky glow and prevents us from observing a dark starry sky. There is also a direct relationship between light pollution and electric consumption.
The night pictures taken from the International Space Station (ISS) and other NASA missions as DMSP can be used to compute light emission from ground based locations.