A generation model of small-scale geomagnetic field-aligned plasma inhomogeneities in the ionosphere

被引：30
作者：
Sorokin, VM [1 ]
Chmyrev, VM [1 ]
Isaev, NV [1 ]
机构：
[1] Russian Acad Sci, Inst Terr Magnetism Ionosphere & Radio Wave P, Troitsk 142092, Moscow Region, Russia
来源：
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 1998年 / 60卷 / 13期
基金：
美国国家航空航天局;
关键词：
D O I：
10.1016/S1364-6826(98)00078-9
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The dissipative instability of acoustic-gravity waves in the ionosphere is investigated. This instability results in formatting the horizontal periodic structure of Conductivity disturbances which move with the velocities considerably less than the sound velocity. In the presence of an external DC electric field the conductivity variations in the E-layer lead to an appearance of polarization electric fields propagating into the upper ionosphere and generating the plasma density variations at these altitudes. Estimates of the space-time and amplitude characteristics of the excited ionospheric disturbances and their comparison with the experimental data show that the developed mechanism can be applied to generation model of the earthquake-related small-scale plasma inhomogeneities:in the upper ionosphere. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1331 / 1342
页数：12
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