We present a new method for producing a 'brute' velocity image rapidly
and automatically from traveltimes picked from densely sampled refraction
data. The procedure involves imaging by data transformation from
the time-offset domain into the tau-p (intercept-slope) domain, and
does not include conventional modelling steps. Differences in apparent
velocity and tau along reciprocal paths in the up- and downdip directions
allow the estimation of the true velocity and geometrical position
of the ray turning points. The tau-velocity-turningpoint (tau-v-x)
map distributes phases automatically on the basis of geometry and
velocity to give a two-dimensional representation of subsurface structure.
This map may be converted simply to depth and two-way-time images.
Such images have potential for direct geological interpretation,
for use as a starting model for seismic inversion, for superimposition
on to conventional reflection images, or for input into prestack
depth migration and other processing routines.
%0 Journal Article
%1 barton_barker:2003
%A Barton, P.
%A Barker, N.
%C LITHOS group, Bullard Laboratories, Madingley Road, Cambridge CB3
0EZ, UK
%D 2003
%J Geophysical Prospecting
%K geophysics seismics
%N 3
%P 195--203
%R 10.1046/j.1365-2478.2003.00365.x
%T Velocity imaging by tau-p transformation of refracted seismic traveltimes
%U http://dx.doi.org/10.1046/j.1365-2478.2003.00365.x
%V 51
%X We present a new method for producing a 'brute' velocity image rapidly
and automatically from traveltimes picked from densely sampled refraction
data. The procedure involves imaging by data transformation from
the time-offset domain into the tau-p (intercept-slope) domain, and
does not include conventional modelling steps. Differences in apparent
velocity and tau along reciprocal paths in the up- and downdip directions
allow the estimation of the true velocity and geometrical position
of the ray turning points. The tau-velocity-turningpoint (tau-v-x)
map distributes phases automatically on the basis of geometry and
velocity to give a two-dimensional representation of subsurface structure.
This map may be converted simply to depth and two-way-time images.
Such images have potential for direct geological interpretation,
for use as a starting model for seismic inversion, for superimposition
on to conventional reflection images, or for input into prestack
depth migration and other processing routines.
@article{barton_barker:2003,
abstract = {We present a new method for producing a 'brute' velocity image rapidly
and automatically from traveltimes picked from densely sampled refraction
data. The procedure involves imaging by data transformation from
the time-offset domain into the tau-p (intercept-slope) domain, and
does not include conventional modelling steps. Differences in apparent
velocity and tau along reciprocal paths in the up- and downdip directions
allow the estimation of the true velocity and geometrical position
of the ray turning points. The tau-velocity-turningpoint (tau-v-x)
map distributes phases automatically on the basis of geometry and
velocity to give a two-dimensional representation of subsurface structure.
This map may be converted simply to depth and two-way-time images.
Such images have potential for direct geological interpretation,
for use as a starting model for seismic inversion, for superimposition
on to conventional reflection images, or for input into prestack
depth migration and other processing routines.},
added-at = {2012-09-01T13:08:21.000+0200},
address = {LITHOS group, Bullard Laboratories, Madingley Road, Cambridge CB3
0EZ, UK},
author = {Barton, P. and Barker, N.},
biburl = {https://www.bibsonomy.org/bibtex/2b53f9c13eb780bf08167c2fd04f0e562/nilsma},
doi = {10.1046/j.1365-2478.2003.00365.x},
interhash = {e3b1721c6b3bd187a1d8d43af3ce1048},
intrahash = {b53f9c13eb780bf08167c2fd04f0e562},
issn = {1365-2478},
journal = {Geophysical Prospecting},
keywords = {geophysics seismics},
month = may,
number = 3,
pages = {195--203},
timestamp = {2021-02-09T13:27:11.000+0100},
title = {Velocity imaging by tau-p transformation of refracted seismic traveltimes},
url = {http://dx.doi.org/10.1046/j.1365-2478.2003.00365.x},
volume = 51,
year = 2003
}