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Direct Method Solution of 3-D Magnetotelluric Modeling Using Vector Finite Element Method

Journal of Mathematical and Fundamental Sciences · Vol. 51 No. 1 (2019) · hlm. 77–89

DOI
10.5614/j.math.fund.sci.2019.51.1.7
ISSN
2338-5510, 2337-5760
Terbit
2019-04-30
Penerbit
Directorate for Research and Innovation (DRI) ITB
Bahasa
eng

Abstrak

As exploration is forced into more difficult areas with complex three-dimensional (3-D) structural environments, the importance of 3-D magnetotelluric (MT) modeling is essential for the correct interpretation of MT data. To reduce the complexity of the calculations introduced by 3-D models, iterative forward calculation of MT response functions is used as basis for inversion of 3-D MT data. This paper proposes an alternative procedure for making reliable 3-D MT modeling codes for forward calculation that is not only effective but also accurate. This is accomplished by using a direct method to solve the linear systems arising from the discretization process in the vector finite element approach. The vector finite element method is known for its capability of overcoming difficulties in modeling caused by possible jumps of normal components across discontinuities of material properties. Meanwhile, by using a direct method rather than an iterative method, the process of solving the linear equations does not suffer from slow convergence. Here, we present a comparison between our modeling codes and codes based on a different approach. In the resulting 3-D MT responses it was found that the proposed method has high accuracy.

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12 penulis · 27 tautan kepenulisan bersama · 11 lintas organisasi

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  • Bandung Institute of Technology
  • Sebelas Maret University
  • Institute for Geothermal Sciences, Graduate School of Science, Kyoto University
  • Padjadjaran University
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  • Organisasi sama
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Rekan penulisOrganisasiArtikel bersama
Wahyu SrigutomoBandung Institute of Technology2
Sorja KoesumaSebelas Maret University1
Ari Handono RamelanSebelas Maret University1
Acep PurqonBandung Institute of Technology1
Cahyo Aji HapsoroBandung Institute of Technology1
Warsa WarsaBandung Institute of Technology1
Tsuneomi KagiyamaInstitute for Geothermal Sciences, Graduate School of Science, Kyoto University1
Imran Hilman MohammadPadjadjaran University1
Prihadi SumintadiredjaBandung Institute of Technology1

Afiliasi berasal dari OpenAlex; metadata OAI-PMH jurnal tidak memuatnya. Penulis tanpa ID OpenAlex dicocokkan berdasarkan nama, sehingga dua orang bisa tergabung atau satu orang bisa terpisah.

Sumber metadata: OAI-PMH (metadata jurnal) https://journals.itb.ac.id/index.php/jmfs/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Direct Method Solution of 3-D Magnetotelluric Modeling Using Vector Finite Element Method</dc:title>
	<dc:creator>Prihantoro, Rudy</dc:creator>
	<dc:creator>Sutarno, Doddy</dc:creator>
	<dc:creator>Nurhasan, Nurhasan</dc:creator>
	<dc:subject xml:lang="en-US">direct solver</dc:subject>
	<dc:subject xml:lang="en-US">electromagnetic</dc:subject>
	<dc:subject xml:lang="en-US">magnetotelluric modeling</dc:subject>
	<dc:subject xml:lang="en-US">rectilinear mesh</dc:subject>
	<dc:subject xml:lang="en-US">vector finite element</dc:subject>
	<dc:description xml:lang="en-US">As exploration is forced into more difficult areas with complex three-dimensional (3-D) structural environments, the importance of 3-D magnetotelluric (MT) modeling is essential for the correct interpretation of MT data. To reduce the complexity of the calculations introduced by 3-D models, iterative forward calculation of MT response functions is used as basis for inversion of 3-D MT data. This paper proposes an alternative procedure for making reliable 3-D MT modeling codes for forward calculation that is not only effective but also accurate. This is accomplished by using a direct method to solve the linear systems arising from the discretization process in the vector finite element approach. The vector finite element method is known for its capability of overcoming difficulties in modeling caused by possible jumps of normal components across discontinuities of material properties. Meanwhile, by using a direct method rather than an iterative method, the process of solving the linear equations does not suffer from slow convergence. Here, we present a comparison between our modeling codes and codes based on a different approach. In the resulting 3-D MT responses it was found that the proposed method has high accuracy.</dc:description>
	<dc:publisher xml:lang="en-US">Directorate for Research and Innovation (DRI) ITB</dc:publisher>
	<dc:date>2019-04-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journals.itb.ac.id/index.php/jmfs/article/view/4846</dc:identifier>
	<dc:identifier>10.5614/j.math.fund.sci.2019.51.1.7</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Mathematical and Fundamental Sciences; Vol. 51 No. 1 (2019); 77-89</dc:source>
	<dc:source>2338-5510</dc:source>
	<dc:source>2337-5760</dc:source>
	<dc:source>10.5614/j.math.fund.sci.2019.51.1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journals.itb.ac.id/index.php/jmfs/article/view/4846/3437</dc:relation>
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