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  4. 深部资源勘探装备研发
Strength of the Electric Dipole Source Field in Multilayer Spherical Media

文献类型：期刊论文

作者Gao, Ya1,2,3,4; Di, Qing-Yun1,2,3,4; Wang, Ruo1,2,3,4; Fu, Chang-Min3; Liang, Peng-Fei3; Zheng, Fang-Hua1,2,3,4
刊名IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
出版日期2022
卷号60页码:12
ISSN号0196-2892
关键词Electromagnetics Earth Electromagnetic scattering Ionosphere Nonhomogeneous media Ground penetrating radar Geophysical measurement techniques ``Earth-ionosphere'' mode multilayer spherical medium Schumann resonance underground electrical structure wireless electromagnetic method (WEM)
DOI10.1109/TGRS.2021.3071371
英文摘要The wireless electromagnetic method (WEM) can be used to detect resources at the distances of up to 10 km underground, monitor and forecast earthquakes and fires, and study ionosphere and space weather. Based on the extremely low frequency (ELF) provided by a high-power artificial source, WEM has the advantages of strong anti-interference ability, stable signal, small measurement error, large transmitting dipole moment, and wide signal coverage. To apply the WEM to geophysical electromagnetic exploration and improve the reliability of calculation results, we study the analytical solution of the electromagnetic field in a spherical multilayer ``earth-ionosphere'' model, considering the displacement current in the air layer and the polarization and conductivity of the underground medium. We used Pade approximation to accelerate the numerical convergence and compare with the previous analytical and numerical results to verify the accuracy of our method. The characteristics of electromagnetic fields in different frequencies of the ``earth-ionosphere'' three-layer model excited by a vertical electric dipole and the influence of the earth's conductivity on electromagnetic fields are simulated. The reasonable range of air conductivity is discussed, providing a basis for other numerical calculation methods. In contrast to the conventional electromagnetic detection methods, the electromagnetic field will vibrate in the ELF range. With decreasing underground conductivity, the electromagnetic field at the surface will gradually weaken, and the resonance phenomenon will gradually disappear, indicating that this method can be applied for the detection of underground conductivity and will further improve the detection accuracy of WEM.
WOS关键词EARTH-IONOSPHERE CAVITY ; PROPAGATION ; WAVES ; TRANSMISSION ; RADIATION ; ELF
资助项目National Natural Science Foundation of China[41874088] ; National Key R&D Program of China[2018YFC0603200]
WOS研究方向Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号WOS:000732794700001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/103927]  
专题地质与地球物理研究所_深部资源勘探装备研发
地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Di, Qing-Yun
作者单位1.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, CAS Engn Lab Deep Resources Equipment & Technol, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Ya,Di, Qing-Yun,Wang, Ruo,et al. Strength of the Electric Dipole Source Field in Multilayer Spherical Media[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2022,60:12.
APA Gao, Ya,Di, Qing-Yun,Wang, Ruo,Fu, Chang-Min,Liang, Peng-Fei,&Zheng, Fang-Hua.(2022).Strength of the Electric Dipole Source Field in Multilayer Spherical Media.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,60,12.
MLA Gao, Ya,et al."Strength of the Electric Dipole Source Field in Multilayer Spherical Media".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 60(2022):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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