Open AccessThree-dimensional numerical modeling of marine controlled-source electromagnetic responses in a layered anisotropic seabed using integral equation method
Author(s) -
Guibo Chen,
Hongnian Wang,
Yao Jing-Jin,
Han Zi-Ye
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.3848
Subject(s) - integral equation , anisotropy , computation , seabed , contraction (grammar) , computer science , multigrid method , operator (biology) , mathematical analysis , physics , mathematics , algorithm , geology , partial differential equation , optics , medicine , biochemistry , oceanography , chemistry , repressor , transcription factor , gene
We perform a numerical simulation of marine controlled-source electromagnetic MCSEM responses in a layered anisotropic seabed using integral equation method. Firstly, we use the operator theory to deduce the contraction integral equation, which is always convergent regardless of any parameters, for it satisfies the contraction mapping condition. Then we introduce the subdomain multigrid and quasi-linear approximation to improve the computation efficiency. We also validate the accuracy and efficiency of the algorithm by synthetic numerical modelings. Finally, we simulate the three-dimensional MCSEM responses in the layered anisotropic seabed, and investigate the effects of anisotropy.