Planetary Waves in the Equatorial Thermosphere/Ionosphere

Planetary waves are large-scale atmospheric phenomena that gradually move from west to east in the Earth's atmosphere. They arise due to the combination of the Earth's rotation and temperature variations between the tropical and polar regions. These waves play a crucial role in shaping long-term weather patterns, influencing the formation of high and low pressure systems, the development of weather fronts and the global circulation of the atmosphere.In this book, we will carry out a concise analysis of the signature of planetary waves, using measurements obtained by Fabry-Perot Interferometers in the northeastern region of Brazil. Our focus will be on the role of these waves in modulating the Earth's atmosphere in response to solar disturbances, such as solar flares and coronal mass ejections. In addition, we will investigate the effects of these phenomena on the distribution of energy in the atmosphere and, consequently, their influence on climate patterns on regional and global scales.