[sorry for the bad english] I am fond of astronomy and environment. I wanna try to make a "light pollution map" but I haven't my satellites... so I use as approximation of light pollution the cities' population. Let say we have for each city C citizens, each one spreads an average of X watt of electricity for lightning ( I have these data ). Skip the units ( I need just a rough dimensionless "light power" ) : city light power = C * X
I have a map, with many cities. I know light power is inverse proportional to the distance^2. I don't know about sky, air diffraction, clouds reflections.
Start from the simplest model. A flat terrain map. N light sources, every one at position X(n), Y(n) has a specific "total light power" = C(n) * X(n)
At a specific point of coordinates x,y wich is the light power, sum of all the cities light ?
I tried to calculate and plot, but it seems weird ( too far from some real satellite night shot ) and too slow to calculate.
Please help !