The study of the physics and chemistry of clouds, gases, and aerosols surrounding the planetary bodies of the solar system is known as atmospheric science. Research in atmospheric science deals with a wide range of areas such as climatology, dynamic meteorology, cloud physics, atmospheric chemistry, atmospheric physics, aeronomy and oceanography. It studies the atmosphere of the Earth as well as the atmospheres of the planets and moons in our solar system. Atmospheric science is applied in instrumentation and data acquisition, data analysis and modeling, and laboratory studies of the chemical and physical processes that occur in the atmosphere. It also finds application in the study of photochemical reactions, cloud microphysics, and absorption and emission of radiation by atmospheric gases and particles. This book traces the progress of this field and highlights some of its key concepts and applications. It presents researches and studies performed by experts across the globe. Scientists and students actively engaged in this field will find this book full of crucial and unexplored concepts.