Geoelectromagnetic waves / Геоэлектромагнитные волны

This book is devoted to the theory of geoelectromagnetic oscillations and waves, i.e. waves of natural origin arising in the Earth’s crust, in the ocean, in the atmosphere, in the ionosphere, in the magnetosphere and in the interplanetary medium in front of the magnetosphere.
We have sought to give a simple and clear presentation of the physical picture of the waves. When selecting the material special attention was paid to the theoretical inferences that can be easily compared with the observational data. Complicated and unwieldy calculations were omitted where possible. At the same time, where formulae have been presented without derivation, we have tried to explain their physical meaning.
The outstanding achievements of the many prominent scientists who contributed to the development of wave theory were used as one basis for this book. A certain portion of the material is based on the authors’ work, most particularly the interpretation of geoelectromagnetic waves and the nonlinear theory. As far as we are aware this is the first use of the term ‘geoelectromagnetic waves’. We consider that the term is more general and more appropriate than the common term ‘geomagnetic pulsations’ which is used in reference to the oscillations of the magnetosphere only. The abundance and the variety of the material resulting from generalization of the problem dictated that we should focus our attention on a number of specific areas which we considered to be most challenging and interesting.<...>