Igor Chunchuzov graduated from the Physics Department of Lomonosov Moscow State University, Russia, and obtained his PhD in Nonlinear Acoustics in 1980. In 1985, he and Sergey Kulichkov were awarded with the gold medal of Russian Academy of Sciences for the best scientific work on geophysics among young scientists. In 1992, he became a doctor of physical and mathematical sciences. He is currently a Leading Researcher at the Obukhov Institute of Atmospheric Physics, Russia, and his research focuses on atmospheric acoustics, nonlinear acoustics, internal gravity wave dynamics and mesoscale turbulence. He published more than 160 papers and is a co-author of three books. Sergey Kulichkov graduated from the Physics Department of Lomonosov Moscow State University (in 1976, and obtained his PhD in Atmospheric Physics and Turbulence Theory in 1981. He is currently a Director of the Obukhov Institute of Atmospheric Physics, Russia. He is a renowned specialist in atmospheric acoustics, infrasound monitoring of explosions, and hazardous atmospheric phenomena. He has published more than 220 scientific works, including four books. He is also the recipient of the 2008 Prize of the Government of the Russian Federation in the field of science and technology.