The terrestrial ring current is an electric current flowing toroidally around the Earth, centered
at the equatorial plane and at altitudes of∼ 10,000–60,000 km. Changes in this current are …

This review is devoted to the main problems of experimental and theoretical investigations of
geoelectromagnetic waves in the frequency range from 0.1 to 5 Hz. These waves constitute …

This paper attempts to summarize the current understanding of the storm/substorm
relationship by clearing up a considerable amount of controversy and by addressing the …

The present 15th volume of the ISSI Space Science Series is devoted to Auroral Plasma
Physics. The aurora is arguably the most intriguing phenomenon in space plasma physics …

The magnetic storm is the prime dynamic process in Geospace. It interconnects, in a
uniquely global manner, the solar wind, the magnetosphere, the ionosphere, the upper …

The role of the ionospheric particle source in the dynamic processes of the geospace was
neglected, underestimated, or questioned for a long period. Recent studies have indicated a …

Geoelectromagnetic waves, a term coined for the first time in this book, examines waves of
natural origin (both terrestrial and extra-terrestrial) which perturb the electromagnetic field of …

Direct measurements of parallel electric fields suggest that they are, in part, self-consistently
supported as strong double layers in the auroral downward current region. The observed …

The self‐consistent electron kinetics of Alfvén waves on the electron inertial scale is studied
using a two‐dimensional hybrid‐kinetic description. The ions follow a fluid description for …

Since the Alfvén speed rises dramatically above ionospheric altitudes, Alfvén waves can be
trapped in an effective resonant cavity, which has been termed the ionospheric Alfvén …