A study of geomagnetic storms

• DOI: 10.1111/j.1365-246x.1978.tb05494.x
• Publication Date: 2007-04-02T23:58:37Z
• Authors: Paul Perreault; S.-I. Akasofu
• Keywords: Substorm; Ring current; Ionospheric dynamo region; Geomagnetic secular variation

An attempt is made to find interplanetary magnetic field and solar-wind parameters which control the development of geomagnetic storms. For this purpose, energy flux estimated in terms Poynting (E×B/4π), its time variations are compared with rate dissipation ring-current particle injection ui(t), Joule ionosphere uj(t) auroral up(t) for 15 major A large increase u(t) associated substorm activity. Thus, ∈(t) entering magnetosphere dissipated through magneto-spheric processes within magnetosphere, their accumulated effects can be understood as storm phenomena.