Modeling and sensitivity analysis of marine controlled-source electromagnetic fields in two-dimensional general anisotropic media

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• 作者：Luo MingLi Yuguo
• 会议时间：2013-10-14
• 作者单位：Key Lab of Submarine Geosciences and Prospecting Techniques of Ministry of Education,Ocean University of China,238 Songling Road,Qingdao 266100,China
• 母体文献：第十一届中国国际地球电磁学术讨论会论文集
• 会议名称：第十一届中国国际地球电磁学术讨论会
• 会议地点：乌鲁木齐
• 主办单位：中国地球物理学会
• 语种：chi

摘要

In this paper, we implement the numerical simulations of marine controlled-source electromagnetic (CSEM) fields in the general case of anisotropy by using an adaptive finite element approach.The adaptive finite element method is employed to obtain numerical solutions on a sequence of refined unstructured triangular meshes, which allows for arbitrary model geometries including bathymetry and dipping layers.The sensitivity analyses show both the anisotropy strike and dipping angles have great influence on the marine CSEM responses.