地震引发低电离层异常与舒曼谐振耦合机理研究

项目名称： 地震引发低电离层异常与舒曼谐振耦合机理研究

项目编号： No.61301014

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 曹丙霞

作者单位： 哈尔滨工业大学

项目金额： 25万元

中文摘要： 舒曼谐振(SR)异常与大地震有强关联性，而震前电离层同时存在各种其他异常，包括电离层参数异常和电磁辐射等，研究这些异常的耦合机理是当前短临地震预测的重要工作。因此，本项目拟开展对低电离层异常与舒曼谐振的耦合机理研究。首先，考虑地球3大闪电源区对舒曼谐振的影响，改进并完善地-电离层谐振模型；并研究电离层参数与舒曼谐振分布的关系；然后，考虑地磁场存在条件下舒曼谐振在低电离层的非线性效应，研究各频段电磁辐射与舒曼谐振的非线性作用。综合其他电离层异常现象，研究低电离层异常与舒曼谐振的耦合模型。研究结果将进一步解释震前各种电磁扰动的产生机理，为短临地震预测提供理论依据。

中文关键词： 舒曼谐振；短临地震预测；电离层非线性；调制度；

英文摘要： There is strong relevance with Schumann Resonance (SR) anomalies and earthquakes. And there are also other seismo-ionospheric abnormalities, including ionospheric parameters and electromagnetic radiation. the coupling mechanism research is the important work of short-impending earthquake prediction Therefore, this project aims to research the coupling mechanism of anomaly a in the lower ionosphere and the SR. First of all, considering influence of the 3 big earth flash sources on SR, the earth-ionosphere cavity model is improved. And the relationship of ionospheric parameters and SR distribution is studied. Then,the nonlinear effects in the lower ionosphere by SR is researched taking into account of the magnetic field. And also the nonlinear effect of electromagnetic radiation of various frequency band and the SR is studied.Combined with other abnormal phenomena in ionosphere, the coupling model of seismo-ionospheric anomaly and SR in the low ionospheric is researched. The research results will further explain the mechanism of various electromagnetic disturbances before earthquakes, and provide the theoretical basis for the short-term earthquake prediction.

英文关键词： Schumann Resonance；short-term and impending earthquake prediction；ionosphere nonlinearity；modulation depth；