The life cycle of a Sudden Stratospheric Warming from infrasonic ambient noise observations

Infrasonic interferometry applied to microbaroms observed at the Large Aperture Infrasound Array in the Netherlands

We present the results of infrasonic interferometry applied to microbaroms, obtained from ambient noise. For this purpose the “Large Aperture Infrasound Array” (LAIA) was used, which has been installed in the Netherlands. Preprocessing appeared to be an essential step in enhancing the microbarom signals from ambient noise that strongly...