An approximate inversion algorithm for time-domain electromagnetic surveys

Journal of Applied Geophysics

Volumn 42, Issue 2, 1999, Pages 71-80

  Farquharson, Colin G ^a   Oldenburg, Douglas W ^a   Li, Yaoguo ^a  

^a UNIVERSITY OF BRITISH COLUMBIA   (Canada)

Author keywords

Electromagnetic surveys; Environmental geophysics; Inverse problem; Mineral exploration

Indexed keywords

ALGORITHMS; FUNCTIONS; GEOLOGIC MODELS; INVERSE PROBLEMS; MATHEMATICAL MODELS; MATRIX ALGEBRA; MINERAL EXPLORATION; OPTIMIZATION; TIME DOMAIN ANALYSIS;

TIME DOMAIN ELECTROMAGNETIC SURVEYS;

ELECTROMAGNETIC PROSPECTING;

ELECTROMAGNETIC SURVEY; INVERSE PROBLEM; MINERAL EXPLORATION;

EID: 0033387465     PISSN: 09269851     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0926-9851(99)00023-3     Document Type: Article

References (19)

1. Auken, E., 1995. 1D time domain electromagnetic interpretations over 2D/3D structures. Proceedings of SAGEEP, Orlando, April, 1995, pp. 329-338.
2. Christensen N.B. Imaging of central loop transient electromagnetic soundings. J. Environ. Eng. Geophys. 0:1995;53-66.
3. Christensen, N.B., 1997. Two-dimensional imaging of transient electromagnetic soundings. Proceedings of SAGEEP, Reno, March, 1997, pp. 397-406.
4. Eaton P.A., Hohmann G.W. A rapid inversion technique for transient electromagnetic soundings. Phys. Earth. Planet. Inter. 53:1989;384-404.
5. 1-Norm and Related Methods. Elsevier, Amsterdam.
6. Farquharson C.G., Oldenburg D.W. Inversion of time-domain electromagnetic data for a horizontally layered Earth. Geophys. J. Int. 114:1993;433-442.
7. Farquharson C.G., Oldenburg D.W. Nonlinear inversion using general measures of data misfit and model structure. Geophys. J. Int. 134:1998;213-227.
8. Fullagar P.K. Generation of conductivity-depth pseudosections from coincident loop and in-loop TEM data. Explor. Geophys. 20:1989;43-45.
9. Gersztenkorn A., Bednar J.B., Lines L.R. Robust iterative inversion for the one-dimensional acoustic wave equation. Geophysics. 51:1986;357-368.
10. Holland P.W., Welsch R.E. Robust regression using iteratively reweighted least-squares. Commun. Stat.: Theory Methods. A6:1977;813-827.
11. Li Y., Oldenburg D.W. Inversion of 3-D DC resistivity data using an approximate inverse mapping. Geophys. J. Int. 116:1994;527-537.
12. Macnae J., Lamontagne Y. Imaging quasi-layered conductive structures by simple processing of transient electromagnetic data. Geophysics. 52:1987;545-554.
13. Munkholm M.S., Auken E. Electromagnetic noise contamination on transient electromagnetic soundings in culturally disturbed environments. J. Environ. Eng. Geophys. 1:1996;119-127.
14. Nabighian, M.N., Macnae, J.C., 1987. Time domain electromagnetic prospecting methods. In: Nabighian, M.N. (Ed.), Electromagnetic Methods in Applied Geophysics, Vol. 2. Society of Exploration Geophysics, Tulsa.
15. Nekut A.G. Direct inversion of time-domain electromagnetic data. Geophysics. 52:1987;1431-1435.
16. Newman G.A., Anderson W.L., Hohmann G.W. Interpretation of transient electromagnetic soundings over three-dimensional structures for the central-loop configuration. Geophys. J. R. Astron. Soc. 89:1987;889-914.
17. Newman G.A., Hohmann G.W., Anderson W.L. Transient electromagnetic response of a three-dimensional body in a layered earth. Geophysics. 51:1986;1608-1627.
18. Oldenburg D.W., Ellis R.G. Inversion of geophysical data using an approximate inverse mapping. Geophys. J. Int. 105:1991;325-353.
19. Smith R.S., Edwards R.N., Buselli G. An automatic technique for presentation of coincident-loop, impulse-response, transient electromagnetic data. Geophysics. 59:1994;1542-1550.