IGGCAS OpenIR  > 深部资源探测先导技术与装备研发中心
Strength of the Electric Dipole Source Field in Multilayer Spherical Media
Gao, Ya1,2,3,4; Di, Qing-Yun1,2,3,4; Wang, Ruo1,2,3,4; Fu, Chang-Min1; Liang, Peng-Fei1; Zheng, Fang-Hua1,2,3,4
2022
Source PublicationIEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
ISSN0196-2892
Volume60Pages:12
AbstractThe 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.
KeywordElectromagnetics 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
Funding OrganizationNational 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
WOS KeywordEARTH-IONOSPHERE CAVITY ; PROPAGATION ; WAVES ; TRANSMISSION ; RADIATION ; ELF
Language英语
Funding ProjectNational Natural Science Foundation of China[41874088] ; National Key R&D Program of China[2018YFC0603200]
Funding OrganizationNational 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
WOS Research AreaGeochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
WOS SubjectGeochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
WOS IDWOS:000732794700001
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/103927
Collection深部资源探测先导技术与装备研发中心
页岩气与地质工程院重点实验室
Corresponding AuthorDi, Qing-Yun
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, CAS Engn Lab Deep Resources Equipment & Technol, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
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.
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