| 伴随我国一些大地震的电离层异常现象 |
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| 引用本文： | 李海华,刘德富,宋笑亭.伴随我国一些大地震的电离层异常现象[J].西北地震学报,1984,6(3):1-11. |
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| 作者姓名： | 李海华 刘德富 宋笑亭 |
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| 作者单位： | 国家地震局兰州地震研究所
(李海华)，国家地震局分析预报中心
(刘德富)，四机部一○二二所(宋笑亭) |
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| 摘 要： | 本文初步总结了伴随我国一些大地震前后电离层的异常现象,结果表明,临震前电离层形态扰动异常是比较普遍的现象;其次是F层“高点位移”的时空分布异常。它们可能与电离层局部生成不均匀电子“云块”有关,以及与震前地磁场、地电场及地面电学性质有关。进一步观测和研究电离层异常现象将有助于估计强震的大致地区和临震时间。文中还就电离层—地磁场—地震关系进行了初步的讨论,指出电离层与地震的联系可能是由于地磁场耦合作用。
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| 收稿时间： | 1983/10/30 0:00:00 |
SOME ABNORMAL PHENOMENA OF THE IONOSPHERE PRIOR TO SOME GREAT EARTHQUAKES IN CHINA |
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| Li Haihu,Liu Defu and Song Xiaoting.SOME ABNORMAL PHENOMENA OF THE IONOSPHERE PRIOR TO SOME GREAT EARTHQUAKES IN CHINA[J].Northwestern Seismological Journal,1984,6(3):1-11. |
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| Authors: | Li Haihu Liu Defu and Song Xiaoting |
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| Institution: | Seismological Institute of Lanzhou, State Seismological Bureau, Lanzhou, China,Centre for Analysis and Prediction, State Seismological Bureau, Beijing, China and 1022 Institute of Fourth Mechanical Industrial Ministry |
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| Abstract: | In this paper some abnormal phenomena of the ionosphere which occur before and after great earthquake have preliminarily summarized. It is shown that the abnormal disturbances of the ionospheric form are a general phenomenon when earthquake is approaching and, secondly, there exist unusually temporal and spatial disturbances of "highpoint displacement" for F layer. They may associate with the nonuniform "electron cloud" of the ionosphere locally, formed and with the geomagnetic field and the geoelectric field as well as the electric properties on the surface. Further observations and studies on them would be helpful to estimate the region and approaching time of earthquakes. The relationship between the ionosphere and geomagnetic field and the earthquake are also briefly discussed. It is pointed out that the relationship may be due to the match effect of geomagnetic field. |
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