Marcus Wallenberg Laboratory

With the increasing demand for onshore wind energy, the annoyance caused by noise emitted from wind turbines is of high concern. Therefore, reliable methods for predicting noise levels at residences neighbouring onshore wind farms are needed. Parabolic Equation (PE) models (Salomons, 2001) have been widely used for determining sound propagation in underwater as well as atmospheric media.

This article analyzes aircraft noise measurements from the Airbus A321neo at 7.5 and 5 nautical miles from the runway threshold. Using correlation, analysis of variance, and hierarchical regression analysis, we assessed the influence of flight data recorder variables and meteorological parameters on the measured sound level variations. A combination of aircraft speed and configuration of the high lift devices can predict approximately 60% of the sound level variations.