Contribution
Global sensitivity analysis of the Doc. 29 aircraft noise model
* Presenting author
Abstract:
Aircraft noise contours are a commonly used tool in land use planning. Several best-practice aircraft noise models are used to estimate such contours. Among them, the ECAC Doc. 29 model is widely used both for regulatory purposes within the EU and for research purposes. However, two challenges arise in the application of the model: first, the model provides only guidelines for some of its modeling features, such as the consideration of curves within the aircraft trajectory, but no clear rules. Thus, a certain modeling uncertainty needs to be attributed to the results obtained. Second, the input data used to compute the noise contours are subject to uncertainties. Both, model and parameter uncertainties affect the computational results and need to be accounted for when applying the model. This contribution aims to address these uncertainties by performing a global sensitivity analysis on the Doc. 29 model. This method can support quantifying the influence of these aspects on the model output and thus could provide valuable insights into the reliability of the model. Moreover, guidelines for the model application could be derived and approaches for a model improvement could be identified.