3D simulation of magnetotelluric data: simulation using eigenmode approach - Tapa blanda

Niwas, Sri; Kumar, Krishna

 
9783848405046: 3D simulation of magnetotelluric data: simulation using eigenmode approach
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ISBN 10: 3848405040 ISBN 13: 9783848405046
Editorial: LAP LAMBERT Academic Publishing, 2012

Sinopsis

A finite difference algorithm for 3D modeling of magnetotelluric data is presented. The algorithm, MT_3D_EA, (Magnetotelluric 3-Dimensional Eigenmode Approach) uses eigenmodes for solving the relevant partial differential equation wherein only a small subset of eigenvalues and corresponding eigenvectors are required to achieve satisfactory results. The requisite small subset (pre-specified number) of eigenmodes are obtained by using shift and invert implementation of Implicitly Restarted Arnoldi Method (IRAM). It is analyzed that only 10-15% smallest eigenvalues and corresponding eigenvectors are sufficient to obtain the acceptable solution. Using this approach one can find multi-frequency solution almost at the computational cost of single frequency solution. 3D results for synthetic models taken from COMMEMI project report and simulation results for simplified geoelectrical model of Garhwal Himalaya based on field data are presented as experiment design.

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Reseña del editor

A finite difference algorithm for 3D modeling of magnetotelluric data is presented. The algorithm, MT_3D_EA, (Magnetotelluric 3-Dimensional Eigenmode Approach) uses eigenmodes for solving the relevant partial differential equation wherein only a small subset of eigenvalues and corresponding eigenvectors are required to achieve satisfactory results. The requisite small subset (pre-specified number) of eigenmodes are obtained by using shift and invert implementation of Implicitly Restarted Arnoldi Method (IRAM). It is analyzed that only 10-15% smallest eigenvalues and corresponding eigenvectors are sufficient to obtain the acceptable solution. Using this approach one can find multi-frequency solution almost at the computational cost of single frequency solution. 3D results for synthetic models taken from COMMEMI project report and simulation results for simplified geoelectrical model of Garhwal Himalaya based on field data are presented as experiment design.

Biografía del autor

Dr. Sri Niwas (b. 1946) joined IIT Roorkee in 1977,became full Professor in 1990, received prestigious Shanti Swarup Bhatnagar Prize of Government of India,elected Fellows of Indian Academy of Science,FASc , Indian National Science Academy, FNA, National Academy of Sciences,FNASc, published 100 research papers. He is an active member of SEG, USA.

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Editorial
LAP LAMBERT Academic Publishing
Año de publicación
2012
Idioma
Inglés
ISBN 10 
3848405040
ISBN 13 
9783848405046
Encuadernación
Tapa blanda
Número de páginas
192
Contacto del fabricante
no disponible
Persona responsable
no disponible