1-8A review is given of the instruments developed for the study of the amplitude and time characteristics and the structure of radio noise bursts resulting from lightning flashes. The use of such instruments suitably modified for a study of thunderstorms, thunderclouds, convection cells in thunderclouds and lightning is discussed. Most of the parameters investigated have a log-normal distribution. This tog-normal law is an approximate representation, but the accuracy realized is of the order of 90%. An integrated account incorporating the latest results on atmospheric noise data for the land mass of India and on the characteristics of tropical thunderstorms and lightning is furnished
