Accession Number : ADP002121

Title :   Models of the Ionospheric Environment,

Corporate Author : UTAH STATE UNIV LOGAN CENTER FOR ATMOSPHERIC AND SPACE SCIENCES

Personal Author(s) : Schunk,R. W.

Report Date : 25 JAN 1983

Pagination or Media Count : 9

Abstract : During the last decade our understanding of the physical processes that control ionospheric behavior has greatly increased. As a consequence, comprehensive, large-scale, quasi-static models of the high-latitude ionospheric have been developed to describe the aurora, the E-region conductivity and currents, the F-region, and the polar wind. In addition, 2-D particle-in-a-cell computer codes have been developed to study the microphysics connected with auroral acceleration processes. These studies involve models of double layers and anomalous resistivity to explain auroral electron precipitation as well as models describing the stochastic acceleration of ionospheric ions by both electrostatic ion cyclotron waves and lower hybrid waves to explain ion beams and conics.

Descriptors :   *Ionospheric models, High latitudes, F region, Ions, Aurorae, Electrons, Precipitation, Polar cap, Density, Contours

Distribution Statement : APPROVED FOR PUBLIC RELEASE