“…The inversion algorithm uses the delay-time method (Pakiser and Black, 1957) to obtain a first approximation depth model. It is then trimmed up by a series of ray tracing and model adjustment iterations to minimize the discrepancies between the field measured arrival times and the corresponding times traced through the 2-1 Ú2-D cross sectional depth model (Scott et al, 1968;and Scott and Markiewicz, 1990). …”
“…The inversion algorithm uses the delay-time method (Pakiser and Black, 1957) to obtain a first approximation depth model. It is then trimmed up by a series of ray tracing and model adjustment iterations to minimize the discrepancies between the field measured arrival times and the corresponding times traced through the 2-1 Ú2-D cross sectional depth model (Scott et al, 1968;and Scott and Markiewicz, 1990). …”
“…The most recent advance in seismic refraction processing, the Generalized Reciprocal Method, was first published in 1980 (Palmer, 1980). Since the early 1970's, computer programs have been developed to facilitate processing of seismic refraction data (e.g., Scott and Markiewicz, 1990). Most of these programs have merely changed the processing platform from drafting boards to computer monitors with little modification to the processing procedures.…”
“…This objective can be achieved through the use of a number of filtering/convolution processes, the employment of synthetic models or inversion algorithms, or other image processing functions Sarris, 2008;Loke & Barker, 1996;Scott & Markiewich, 1990). In cases that multiple datasets are available for the same region, composites can be made using visualization techniques similar to those used in satellite remote sensing (Böniger & Tronicke, 2010).…”
Section: Ground Based Geophysical Techniquesmentioning
confidence: 99%
“…In seismic refraction, the acoustic wave sensors (geophones) are laid along specific distances and record the refracted signals with respect to their arrival times and in this way their velocity of propagation (increasing with depth) is measured. Seismic reflection techniques require a smaller distance between the source and the geophones and through the examination of the arrival times, amplitude and shape of the reflected waves, we can conclude on the types of the subsurface interfaces (Metwaly et al, 2005 ;Scott & Markiewich, 1990). …”
Section: Ground Based Geophysical Techniquesmentioning
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