Current Systems in the Earth's Magnetosphere

@article{Ganushkina2018CurrentSI,
  title={Current Systems in the Earth's Magnetosphere},
  author={Natalia Yu. Ganushkina and Michael W. Liemohn and Stepan Dubyagin},
  journal={Reviews of Geophysics},
  year={2018},
  volume={56},
  pages={309 - 332}
}
The basic structure and dynamics of the primary electric current systems in the Earth's magnetosphere are presented and discussed. In geophysics, the word current is used to describe the flow of mass from one location to another, and its analog of electric current is a flow of charge from one place to another. An electric current is associated with a magnetic field, and they combine with the Earth's internally generated dipolar magnetic field to form the topology of the magnetosphere. The… 
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References

SHOWING 1-10 OF 358 REFERENCES
Current systems in the Earth's magnetosphere: A Review of U.S. Progress for the 1975–1978 IUGG Quadrennial Report
Electric currents play a fundamental role in a variety of magnetospheric phenomena and a system of large-scale currents defines the shape of the magnetosphere itself. Currents are believed to drive a
The magnetospheric currents - An introduction
It is pointed out that the scientific discipline concerned with magnetospheric currents has grown out from geomagnetism and, in particular, from geomagnetic storm studies. The International
Magnetospheric Topology of Fields and Currents
The interaction of the solar wind with the magnetosphere is examined from the standpoint of fundamental processes in physics and, whenever possible, observational data. A conceptual model is
Magnetospheric electric fields and currents
The progress made in the years 1983-1986 in understanding the character and operation of magnetospheric electric fields and electric currents is discussed, with emphasis placed on the connection with
Large-scale electric fields in the Earth's magnetosphere
Studies of the earth's magnetosphere have indicated that a large-scale electric field E plays a central role in its electrodynamics and in the flow and acceleration of charged particles there; while
A three‐dimensional model current system for polar magnetic substorms
A model current system, in which magnetospheric and ionospheric sections are connected by currents flowing along the geomagnetic field lines, is proposed to represent the current system responsible
THE EFFECTS OF ENERGETIC TRAPPED PARTICLES ON MAGNETOSPHERIC MOTIONS AND IONOSPHERIC CURRENTS
It is shown that the temporary distortion of a previously stable belt of energetic charged particles, trapped in the earth's magnetic field, results in a system of ionospheric currents and
The ring current, geomagnetic disturbance, and the Van Allen radiation belts
The large decrease in the horizontal component of the earth's field during the main phase of magnetic storms is ascribed to the formation or enhancement of a geomagnetic ring current. The motions of
A study of polar magnetic substorms: 2. Three‐dimensional current system
Three-dimensional current systems are constructed semi-quantitatively for different epochs of several polar magnetic substorms, mainly on the basis of the distribution of their magnetic fields on the
...
...