Abstract
Correct interpretations of seismic refraction profiles are contingent upon accurate processing, especially in problematic sites where hidden layers may be present. It is found that the Generalized Reciprocal Method (GRM), which is used to solve hidden layer problems, does not give accurate results in some areas without additional modification to the processing flow. To improve the final GRMderived velocity-depth (V-D) model, the Finite Difference (FD) method is employed to calculate the first arrival's direct and refracted times for any velocity medium. This newly-developed FD technique is then used to improve the initial GRM-derived V-D model. Three synthetic seismic data sets are used to validate this technique, each processed by GRM-only and FD modified GRM. In each case, the FD modifications are found to provide more accurate results in comparison to those from GRM-only processing flows.
Original language | English (US) |
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Title of host publication | 18th Symposium on the Application of Geophysics to Engineering and Environmental Problems, SAGEEP 2005 |
Subtitle of host publication | Geophysical Solutions for Today's Challenges |
Pages | 1012-1024 |
Number of pages | 13 |
Volume | 2 |
State | Published - 2005 |
Externally published | Yes |
Event | 18th Symposium on the Application of Geophysics to Engineering and Environmental Problems: Geophysical Solutions for Today's Challenges, SAGEEP 2005 - Atlanta, GA, United States Duration: Apr 3 2005 → Apr 7 2005 |
Other
Other | 18th Symposium on the Application of Geophysics to Engineering and Environmental Problems: Geophysical Solutions for Today's Challenges, SAGEEP 2005 |
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Country/Territory | United States |
City | Atlanta, GA |
Period | 04/3/05 → 04/7/05 |
ASJC Scopus subject areas
- Geophysics
- Geotechnical Engineering and Engineering Geology
- Environmental Engineering