(a) Infrasound record section filtered from 1 to 5 Hz for an event on 24 May 2015. Figure configuration is the same as Fig. 9(a). A zoomed-in time window for the associated signals at CHNAR is in the upper right corner. Ray tracing uses a single G2S atmospheric model at the source (star) on the event time and date, 03 UTC and local weather data (radiosonde, 00:00:00 UTC and wind profiler, 03:10:00 UTC) (b) without topography and (c) with topography. Phase identification (Iw, Is and It phases) is based on the turning height of the ray. Solid and open triangles represent infrasound arrays with and without detection.