Quantitative evaluation of outdoor artificial light emissions using low Earth orbit radiometers

Low Earth orbit radiometers allow monitoring nighttime anthropogenic light emissions in wide areas of the planet. In this work we describe a simple model for assessing significant outdoor lighting changes at the municipality level using on-orbit measurements complemented with ground-truth information. We apply it to evaluate the transformation effected in the municipality of Ribeira (42° 33 23 N, 8° 59 32 W) in Galicia, which in 2015 reduced the amount of installed lumen in its publicly-owned ou...