Comparison of near-surface properties derived from non-linear inversion of refraction amplitudes versus the refraction convolution section

Alan Meulenbroek

doi:10.1071/ASEG2013ab245

ISSN: 2202-0586
E-ISSN:

oa Comparison of near-surface properties derived from non-linear inversion of refraction amplitudes versus the refraction convolution section
Authors Alan Meulenbroek^a
View Affiliations Hide Affiliations

^a Velseis Pty Ltd and School of Earth Sciences, University of Queensland, PO Box 118, Sumner Park, Queensland, , Australia, 4074, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2013, Issue ASEG2013 - 23rd Geophysical Conference, Dec 2013, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2013ab245
- Published online: 01 Dec 2013

Abstract

The amplitude of a seismic refraction event is dependent on the properties of the rocks through which the seismic waves travel, the amplitude of the shot, and the offset at which the refraction is recorded. Separation and subsequent analysis of these 3 constituent amplitude terms can provide insight into the physical properties of the near-surface. A comparison between a published method of amplitude separation and a formal, non-linear, inversion scheme is presented using a Vibroseis dataset as the test case.

An assessment of the two methods shows that there is very good correlation for this dataset. Variations in the curves representing lateral changes in physical properties are consistent with each other along most of the extent of the line. The range of values for the non-linear inversion result is consistent with theoretical values for most near- surface geologies.

Article metrics loading...

/content/journals/10.1071/ASEG2013ab245

2013-12-01

2026-01-20

From This Site

/content/journals/10.1071/ASEG2013ab245

dcterms_title,dcterms_subject,pub_keyword

-contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution

10

5

Full text loading...

References

Červený, V., Ravindra, R., 1971, Theory of seismic head waves, Toronto, university of Toronto Press.
Doherty, J., 2004, PEST - Model-Independent Parameter Estimation User Manual: 5th edition, Watermark Numerical Computing.
Doherty, J., 2010, Addendum to the PEST Manual, Watermark Numerical Computing.
Heelan, 1953, On the theory of head waves. Geophysics, 18, pp871-893.
Meulenbroek, A., 2010, Least-squares inversion of refraction amplitudes for near-surface velocity control, Extended Abstracts, ASEG 21st International Conference and Exhibition, Sydney.
Palmer, D., 2001a, Imaging refractors with the convolution section, Geophysics, 66, 5, pp1582-1589.
Palmer, D., 2001b, Resolving refractor ambiguities with amplitudes, Geophysics, 66, 5, pp1590-1593.
Palmer, D., 2009, Integrating long and short waavelength time and amplitude statics, First Break, 27, pp57-65.
Robinson, E.A., Treitel, S., 1980, Geophysical signal analysis, Prentice Hall International, Inc., London.
Zvolinskii, 1958, Reflected-waves and head-waves arising at a plane interface between two elastic media - II: Bulletin of the Academy of Sciences of the U.S.S.R. Geophysics Series), 11, pp1-7.

/content/journals/10.1071/ASEG2013ab245

Article Type: Research Article

Keyword(s): amplitude; inversion; near-surface; Seismic refraction

Most Cited This Month Most Cited RSS feed

- Inversion of data from electrical imaging surveys in water-covered areas
  
  Authors M. H. Loke and J. W. Lane
- Inversion of Magnetic Data from Remanent and Induced Sources
  
  Authors Robert G. Elllis, Barrry de Wet and Ian N. Macleod
- A comparison of smooth and blocky inversion methods in 2-D electrical imaging surveys
  
  Authors M. H. Loke, Ian Acworth and Torleif Dahlin
- Designing matched bandpass and azimuthal filters for the separation of potential-field anomalies by source region and source type
  
  Authors Jeffrey D. Phillips
- Bad Colour Maps Hide Big Features and Create False Anomalies
  
  Authors Peter Kovesi
- Practical 3D EM inversion – the P223F software suite
  
  Authors Art Raiche, Fred Sugeng and Glenn Wilson
- Estimating Noise Levels in AEM Data
  
  Authors Andy Green and Richard Lane
- Target delineation using Full Tensor Gravity Gradiometry data
  
  Authors Colm A. Murphy and James Brewster
- Transdimensional Monte Carlo Inversion of AEM Data
  
  Authors Ross C Brodie and Malcolm Sambridge
- The geotech VTEM time domain helicopter em system
  
  Authors Ken Witherly, Richard Irvine and Edward Morrison
More Less

oa Comparison of near-surface properties derived from non-linear inversion of refraction amplitudes versus the refraction convolution section

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed