Title :
Fractal complex resistivity image for environmental application
Author :
Farias, Valcir J Da C ; Da Rocha, Brígida R P
Author_Institution :
IESAM, Para
fDate :
Sept. 29 2004-Oct. 1 2004
Abstract :
A finite element code to simulate the forward and inverse induced polarization response to 2-D model was developed. The "fractal model to complex resistivity" was applied as intrinsic electrical property of the medium. The simulations were carry out in five different frequencies. To each frequency we carry out the inversion of the complex resistivity. After, to each cell of the finite element mesh, we carry out the fractal model parameters inversion to analyze the possibility of using the fractal model parameters image in the qualitative and quantitative interpretation of the induced polarization response to this geological geometry. The results showed that the contaminations of the medium by organic contaminants are well detected by the image of the fractal model parameters
Keywords :
electrical resistivity; finite element analysis; geophysical signal processing; environmental application; finite element code; forward induced polarization response; fractal complex resistivity image; geological geometry; intrinsic electrical property; inverse induced polarization response; organic contaminant; Conductivity; Contamination; Finite element methods; Fractals; Frequency; Geology; Geometry; Image analysis; Polarization; Solid modeling;
Conference_Titel :
Machine Learning for Signal Processing, 2004. Proceedings of the 2004 14th IEEE Signal Processing Society Workshop
Conference_Location :
Sao Luis
Print_ISBN :
0-7803-8608-4
DOI :
10.1109/MLSP.2004.1423044