Modelagem do método magnetotelúrico 2D usando elementos finitos em C++
The data modeling electromagnetic (EM) has great importance in locating targets of interest to the geophysical with either resistive or conductive bodies, such as salt domes base. One of the main methods in geo-magnetism is the Magnetotelluric (MT) method, which uses electromagnetic sources not c...
| Autor principal: | OHASHI, Aline Ayako |
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| Grau: | Trabalho de Conclusão de Curso - Graduação |
| Publicado em: |
2017
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| Assuntos: | |
| Acesso em linha: |
http://bdm.ufpa.br/jspui/handle/prefix/370 |
| Resumo: |
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The data modeling electromagnetic (EM) has great importance in locating targets of
interest to the geophysical with either resistive or conductive bodies, such as salt domes
base. One of the main methods in geo-magnetism is the Magnetotelluric (MT)
method, which uses electromagnetic sources not controlled (natural) in order to identify
major structures through measurements of electric and magnetic fields obtained in
the subsurface or in ocean substrate. The response to the MT method can be described
by numerical modeling of EM data, building geoelectric models that represent
the subsurface geological structures. In the referred work is used the technique of
the finite element solution for the Helmholtz equation that governs the phenomenon of
the method through a C++ code. Representative models of simple mineral structures
are analyzed, in addition to interpret the responses obtained (apparent resistivity and
phase) from the developed code. For code validation compare yourself to the results
with data obtained from the Key e Weiss (2006) program. |