HIGH-LATITUDE IONOSPHERE

被引:29
作者
JELLY, DH
PETRIE, LE
机构
[1] Communications Research Center, DRTE, Ottawa
关键词
D O I
10.1109/PROC.1969.7144
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper reviews information on the high-latitude ionosphere derived from the Alouette-ISIS program. It is primarily descriptive and deals mainly with F-region features. Particle effects in the D region and night E ionization are briefly considered. F-region features include the main trough, maxima and minima in electron density in the polar region, and electron-density irregularities revealed by the presence of spread echoes on topside ionograms. The relationship of these features to the plasmapause and the energetic particle boundaries is discussed. Although ionization affects in the D region are not directly detectable by the Alouette satellites, large increases in D-region ionization are produced at high latitudes by the influx of enargetic particles which may be detected by some of the energeticcounters on board. For both polar-cap and auroral events, empirical relations have been derived between particle fluxes and D-region radio-wave absorption measured by riometers. Copyright © 1969 by The Inshtute of Electrical and Electronics Engineers Inc.
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页码:1005 / &
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