Thank you for sharing this--it is very interesting. We are using a similar approach in conflict situations to estimate the cost of damage to different sectors such as health, roads, water etc. Satellites are particularly useful as they allow us to estimate direct hits to health facilities, schools etc. We have then been triangulating what we see with social media analytics (YouTube feeds, Facebook, Twitter) which can help verify if a particular facility has indeed been hit. Your use of luminosity data is very interesting and can perhaps be added to our analyses. Thank you for sharing this innovative work!