Publisher： John Wiley & Sons Inc
E-ISSN： 2156-2202|79|19|2853-2858
ISSN： 0148-0227
Source： Journal Of Geophysical Research, Vol.79, Iss.19, 1974-07, pp. : 2853-2858
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
A model is developed in which a magnetic field aligned potential difference is assumed to accelerate electrons downward into the atmosphere. It is pointed out that the upgoing backscattered electrons produced by this electron beam may process insufficient kinetic energy to overcome the hypothetical potential difference. These electrons will be reflected downward to appear as members of a precipitating electron population. A numerical model was constructed in order to describe the total precipitating electron flux in terms of a primary accelerated beam and backscatter from the atmosphere. It is pointed out that many features that appear in the model beam are observed in the auroral electron beam as well. An example of an auroral beam, measured by Frank and Ackerson (1971), is compared favorably with a model electron beam formed by a parallel potential.
Related content
Oblique turbulence driven by field‐aligned electron fluxes in the auroral ionosphere
Journal Of Geophysical Research, Vol. 102, Iss. A12, 1997-12 ,pp. :
Access to resources
Recommend
Modeling the magnetic effects of field‐aligned currents
Journal Of Geophysical Research, Vol. 98, Iss. A8, 1993-08 ,pp. :