A free map of aircraft noise on the ground anywhere in the world, calculated every day from real flight tracks (ADS-B data from the OpenSky Network): Lden, the EU's day-evening-night noise level, the day, evening and night levels alone, and how many flights pass over each place. It can be compared with the official noise maps of airports and with noise measuring stations.
Noise maps of major airports - How the noise map is calculated - Flights tracked