1. Laboratoire de Mécanique des Fluides et d’Acoustique, UMR CNRS 5509, École Centrale de Lyon, Université de Lyon, 69134 Ecully Cedex, France
2. European Center For Medium Range Weather Forecasts, Reading, United Kingdom
3. Department of Acoustics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow 119991, Russia