1887
Volume 22 Number 4
  • E-ISSN: 1365-2478

Abstract

A

The technique of linear digital filtering developed for the computation of standard curves for conventional resistivity and electromagnetic depth soundings is applied to the determination of filter coefficients for the computation of dipole curves from the resistivity transform function by convolution. In designing the filter function from which the coefficients are derived, a sampling interval shorter than the one used in the earlier work on resistivity sounding is found to be necessary. The performance of the filter sets is tested and found to be highly accurate. The method is also simple and very fast in application.

Loading

Article metrics loading...

/content/journals/10.1111/j.1365-2478.1974.tb00117.x
2006-04-27
2024-04-26
Loading full text...

Full text loading...

References

  1. Al'pin, L. M., 1950, The theory of Dipole sounding, Gostoptekhizdat, Moscow (Translation in: Dipole methods for measuring earth conductivity, Plenum Press, New York , 1966, 1–60).
    [Google Scholar]
  2. Al'pin, L. M., 1958, Transformation of sounding curves, Prikladnaya Geofizika19, 23–46 (Translation in: Dipole methods for measuring earth conductivity, Plenum Press, New York , 1966, 61–78).
    [Google Scholar]
  3. Bhattacharya, P. K. and Patra, H. P., 1968, Direct current geoelectric sounding, Elsevier, Amsterdam.
    [Google Scholar]
  4. Das, U. C. and Ghosh, D. P., 1973, A study on the direct interpretation of dipole sounding resistivity measurements over layered earth, Geoph. Prosp.21, 379–400.
    [Google Scholar]
  5. Das, U. C., Ghosh, D. P. and Biewenga, D. T., 1974, Transformations of dipole resistivity sounding measurements over layered earth by linear digital filtering, Geoph. Prosp.22, 476–489.
    [Google Scholar]
  6. Ghosh, D. P., 1970, The application of linear filter theory to the direct interpretation of geoelectrical resistivity measurements, Ph.D. thesis, T.H. Delft. Published.
  7. Ghosh, D. P., 1971a, The application of linear filter theory to the direct interpretation of geoelectrical resistivity sounding measurements, Geoph. Prosp.19192–217.
    [Google Scholar]
  8. Ghosh, D. P., 1971b, Inverse filter coefficients for the computation of apparent resistivity standard curves for a horizontally stratified earth, Geoph. Prosp.19, 769–775.
    [Google Scholar]
  9. Keller, G. V., 1966, Dipole method for deep resistivity studies, Geophysics31, 1088–1104.
    [Google Scholar]
  10. Keller, G. V. and Frischknecht, F. C., 1966, Electrical methods in geophysical prospecting, Pergamon Press, New York .
    [Google Scholar]
  11. Koefoed, O., 1974, Error propagation and uncertainty in the interpretation of resistivity sounding data, presented at the 36th Annual Meeting, E.A.E.G., Madrid.
  12. Koefoed, O., Ghosh, D. P. and Polman, G. J., 1972, Computation of type curves for electromagnetic depth sounding with a horizontal transmitting coil by means of a digital linear filter, Geoph. Prosp.20, 406–420.
    [Google Scholar]
  13. Marsden, D., 1973, The automatic fitting of a resistivity sounding by a geometrical progression of depths, Geoph. Prosp.21, 266–280.
    [Google Scholar]
  14. Mooney, H. M., Orellana, E., Pickett, H., and Tornheim, L., 1966, A resistivity computation method for layered earth models, Geophysics31, 192–203.
    [Google Scholar]
  15. N.N., 1957, Paletki, Teoreticheskikh Krivikh Radialnogo Dipolnago Zondirovanya. Gosgeoltekhizdat, Moskva , 62 p. (Master curves).
    [Google Scholar]
  16. Orellana, E. and Mooney, H. M., 1966, Master tables and curves for vertical electrical sounding over layered structures, Intercientia, Madrid.
  17. Roman, I., 1960, Apparent resistivity of a single uniform overburden, U.S. Geological Survey Professional paper 365, Govt. Printing Office, Washington , D.C. , 99 p.
    [Google Scholar]
  18. Szaraniec, E., 1971, An effective array spacing for electrical sounding curves, Geophysics36, 358–362.
    [Google Scholar]
  19. Temkina, B. S., 1951, Curves for dipole sounding, Razved Promysl. Geofizika, vol. 3, Gostoptekhizdat .
    [Google Scholar]
  20. van Dam, J. C., 1965, A simple method for the calculation of standard graphs to be used in geoelectrical prospecting, Geoph. Prosp.13, 37–65.
    [Google Scholar]
  21. Zagarmistr, A. M., 1957, Concerning the use of increased resolution of polar dipole soundings for investigating type H sections, Priklandnaya Geofizika, vol. 16, Gostoptekhizdat .
    [Google Scholar]
  22. Zohdy, A. A. R., 1969, A new method for differential resistivity sounding, Geophysics34, 924–943.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journals/10.1111/j.1365-2478.1974.tb00117.x
Loading
  • Article Type: Research Article

Most Cited This Month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error