Physics
Scientific paper
Feb 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84..469s&link_type=abstract
Journal of Geophysical Research, vol. 84, Feb. 1, 1979, p. 469-479.
Physics
2
Atmospheric Models, Auroral Arcs, Flux (Rate), High Energy Electrons, Mathematical Models, Electrostatic Waves, Field Aligned Currents, Plasma Turbulence
Scientific paper
An attempt is made to gain insight into the structure of auroral bands and arcs that lie poleward of the diffuse auroral glow. The mechanism responsible for auroral-electron acceleration is taken to be the V-shock structures characterized by electric fields oblique to the magnetic field. Basic equations which include the effects of the nonlinear turbulent cascade, ionospheric dissipation, and energy input due to external forcing are formulated. The development of a specific model incorporating the current-limiting effect of the V shock is described along with a presentation of the consequences of the diode effect. It is shown that the limitation of upward field-aligned current by the V shocks can result in a clustering of precipitation regions and the imposition of a long-range order on patterns of auroral precipitation. This effect is likely responsible for the multiple, regular auroral bands observed during quiet conditions. The regions of energy input into the turbulent cascade appear to be loosely coupled to the region where the electrons are accelerated.
No associations
LandOfFree
On the structure of auroral arcs - The results of numerical simulations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the structure of auroral arcs - The results of numerical simulations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the structure of auroral arcs - The results of numerical simulations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-830286