Single station magnetotelluric impedance estimation: Coherence weighting and the regression M-estimate

Geophysics

Volumn 61, Issue 4, 1996, Pages 964-970

  Egbert, Gary D ^a   Livelybrooks, Dean W ^b  

^a OREGON STATE UNIVERSITY   (United States)

^b ÉCOLE POLYTECHNIQUE DE MONTRÉAL   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

DATA PROCESSING; ELECTRIC FIELDS; ELECTRIC IMPEDANCE; FOURIER TRANSFORMS; LEAST SQUARES APPROXIMATIONS; MAGNETIC FIELDS; REGRESSION ANALYSIS; SIGNAL TO NOISE RATIO;

COHERENCE WEIGHTED ESTIMATES; COHERENCE WEIGHTING; LINEAR LEAST SQUARES; MAGNETOTELLURIC IMPEDANCE ESTIMATION;

MAGNETIC PROSPECTING;

EID: 0030194184     PISSN: 00168033     EISSN: None     Source Type: Journal    
DOI: 10.1190/1.1444045     Document Type: Article

References (20)

1. Booker, J. R., Aprea, C., Smith, J. T., Waff, H., and Egbert, G., 1992, Magnetotelluric evidence for ductility in the lower crust south of Cape Mendocino, EOS Trans. Am. Geophys. Union.
2. Chave, A. D., and Thomson, D. J., 1989, Some comments on magnetotelluric response function estimation, J. Geophys. Res., 94, 14 215-14 226.
3. Chave, A. D., Thomson, D. J., and Ander, M. E., 1987, On the robust estimation of power spectra, coherences, and transfer functions. J. Geophys. Res., 92, 633-648.
4. Egbert, G. D., 1991, New approaches to estimation of magnetotelluric parameters: U.S. Dept. of Energy final tech. rep., DOE/ER/14057-2.
5. Egbert, G., and Booker, J. R., 1986, Robust estimation of geomagnetic transfer functions: Geophys. J. Roy Astr. Soc., 87, 173-194.
6. Gamble, T. D.. Goubau, W. M., and Clarke, J., 1979a, Magnetotellurics with a remote reference, Geophysics: 44, 53-68.
7. _, 1979b, Error analysis for remote reference magnetotellurics: Geophysics, 44, 959-968.
8. Goubau, W. M., Gamble, T. D., and Clarke, J., 1978, Magnetotelluric data analysis: Removal of bias: Geophysics, 43, 1157-1166.
9. Goubau, W. M., Maxton, P. M., Koch, R. H., and Clarke, J., 1984, Noise correlation lengths in remote reference magnetotellurics: Geophysics, 49, 433-438.
10. Hampel, F. R., Ronchetti, E. M., Rousseeuw, P. J., and Stahel, W. A., 1986, Robust statistics; The approach based on influence functions: John Wiley & Sons. Inc.
11. Huber, P. J., 1981. Robust statistics, John Wiley & Sons, Inc.
12. Jones, A. G., and Jodicke, H., 1984, Magnetotelluric transfer function estimation improvement by a coherence-based rejection technique: Presented at 54th Annual International Meeting, Soc. of Expl. Geophys., Expanded Abstracts, 51-55.
13. Jones, A. G., Chave, A. D., Egbert, G. D., Auld, D., and Bahr, K., 1989, A comparison of techniques for magnetotelluric response function estimation, J. Geophys. Res., 94, 14201-14214.
14. Larsen, J. C., 1989, Transfer functions: Smooth robust estimates by least squares and remote reference methods: Geophys. J. Int., 99, 655-663.
15. Sims, W. E., Bostick, F. X., and Smith, H. W., 1971, The estimation of magnetotelluric impedance tensor elements from measured data: Geophysics, 36, 938-942.
16. Stodt, J. A., 1983, Noise analysis for conventional and remote reference magnetotcllurics, Ph.D. dissertation, Univ. of Utah.
17. Stodt, J. A., 1986, Weighted averaging and coherence sorting for least-squares magnetotelluric estimates: Presented at Eighth Workshop on Geomagnetic Induction in the Earth and Moon, Internat. Assoc. Geomag. Aeron.
18. Sutarno, D., and Vozoff, K., 1991, Phase-smoothed robust M-estimation of magnetotelluric impedance functions: Geophysics, 56, 1999-2007.
19. Swift, C. M., 1967, A magnetotelluric investigation of an electrical conductivity anomaly in the southwestern United States. Ph.D. dissertation, Mass. Institute of Technology.
20. Wannamaker, P. E., Booker, J. R., Filloux, J. H., Jones, A, G., Jiracek, G. R., Chave, A. D., Tarits, P., Waff, H. S., Egbert, G. D., Young, C. T., Stodt, J. A., Martinez, G., M., Law, L. K., Yukatake, T., Segawa, J. S., White, A., and Green, A. W., Jr., 1989, Magnetotelluric observations across the Juan de Fuca subduction system in the EMSLAB project: J. Geophys. Res., 94, 14 111-14 126.