Model of anomalous electron heating in the E region: 1. Basic theory

Details Model of anomalous electron heating in the E region: 1. Basic theory Model of anomalous electron heating in the E region: 1. Basic theory

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jgra..108.1350d&link_type=abstract

Journal of Geophysical Research, Volume 108, Issue A9, pp. SIA 5-1, CiteID 1350, DOI 10.1029/2002JA009524

Physics

16

Ionosphere: Ionospheric Disturbances, Ionosphere: Plasma Temperature And Density, Ionosphere: Auroral Ionosphere (2704)

Scientific paper

Numerous radar observations demonstrate anomalously strong electron heating in polar electrojets during magnetic storms. The effect often correlates with the onset of the Farley-Buneman instability caused by strong convection electric field. Anomalous heating of electrons is usually attributed to turbulent electric fields developing in the E region due to that instability. We propose a theoretical model of the effect based on heuristic assumptions on nonlinearly saturated turbulence and equations of the electron and ion energy budget. The model has been quantitatively tested in the companion paper by Milikh and Dimant [2003]. Good agreement with observations supports the implied physical mechanism.

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