Journal ArticleDOI
A unifying theory of high-latitude geophysical phenomena and geomagnetic storms
W. I. Axford,C. O. Hines +1 more
TLDR
In this article, the occurrence at high latitudes of a large number of geophysical phenomena, including geomagnetic agitation and bay disturbances, aurorae, and various irregular distri...Abstract:
This paper is concerned with the occurrence at high latitudes of a large number of geophysical phenomena, including geomagnetic agitation and bay disturbances, aurorae, and various irregular distri...read more
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Journal ArticleDOI
The ionospheric disturbance dynamo
M. Blanc,Arthur D. Richmond +1 more
TL;DR: In this article, a numerical simulation study of the thermospheric winds produced by auroral heating during magnetic storms, and of their global dynamo effects, establishes the main features of the ionospheric disturbance dynamo.
Journal ArticleDOI
Neutral line model of substorms: Past results and present view
Daniel N. Baker,Tuija Pulkkinen,Vassilis Angelopoulos,Wolfgang Baumjohann,Robert L. McPherron +4 more
TL;DR: In this article, the authors reviewed the NENL model of magnetospheric substorms, including the role of coupling with the solar wind and interplanetary magnetic field, the growth phase sequence, the expansion phase (and onset), and the recovery phase.
Book ChapterDOI
Mathematical models of magnetospheric convection and its coupling to the ionosphere
TL;DR: In this paper, a model is defined as a solution of the equations that describe the system under consideration, i.e., a solution to the equations governing a system as complex as the magnetosphere is clearly impossible, and to construct a theoretical model the equations must be simplified to the point of tractability.
Journal ArticleDOI
Large-scale imaging of high-latitude convection with Super Dual Auroral Radar Network HF radar observations
J. M. Ruohoniemi,K. B. Baker +1 more
TL;DR: In this paper, a method of deriving large-scale convection maps based on all the available velocity data is described, which is used to determine a solution for the distribution of electrostatic potential, expressed as a series expansion in spherical harmonics.
Journal ArticleDOI
Interplanetary origin of geomagnetic storms
TL;DR: In this article, the authors examined the effects of a combination of a long-duration southward sheath magnetic field, followed by a magnetic cloud Bs event, and showed that double, and sometimes triple, IMF Bs events are important causes of such events.
References
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Journal ArticleDOI
Interplanetary Magnetic Field and the Auroral Zones
TL;DR: In this article, it was found that a model with a southward interplanetary magnetic field leads to a natural explanation of the SD currents and speculative aspects of the problem as they appear at this time are discussed.
Journal ArticleDOI
A new theory of magnetic storms
S. Chapman,V. C. A. Ferraro +1 more
TL;DR: In this article, the shape of the hollow formed by the magnetic field is discussed, but the authors defer this consideration until they have a clearer understanding of the mode in which the ions near the surface of the stream are able to advance into the Earth's magnetic field.
Journal ArticleDOI
Hydromagnetic theory of geomagnetic storms
A. J. Dessler,Eugene N. Parker +1 more
TL;DR: In this article, a hydromagnetic theory is presented which explains the average characteristics of geomagnetic storms and the recovery from the main phase is attributed to the relief of the stress on the magnetic field by the transfer of the energy of the trapped protons to neutral hydrogen by means of ion-atom charge exchange.
Journal ArticleDOI
Motions in the magnetosphere of the Earth
TL;DR: In this paper, it is shown that the existence of an insulating layer at the base of this region, namely the non-ionized atmosphere, completely changes the type of control exerted by the magnetic field, allowing a class of motions to occur freely without the need to overcome any magnetic forces.