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The selection of field acquisition parameters for dispersion images from multichannel surface wave data

Pure and Applied Geophysics

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Abstract

The accuracy and resolution of surface wave dispersion results depend on the parameters used for acquiring data in the field. The optimized field parameters for acquiring multichannel analysis of surface wave (MASW) dispersion images can be determined if preliminary information on the phase velocity range and interface depth is available. In a case study on a fill slope in Hong Kong, the optimal acquisition parameters were first determined from a preliminary seismic survey prior to a MASW survey. Field tests using different sets of receiver distances and array lengths showed that the most consistent and useful dispersion images were obtained from the optimal acquisition parameters predicted. The inverted S-wave velocities from the dispersion curve obtained at the optimal offset distance range also agreed with those obtained by using direct refraction survey.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
The selection of field acquisition parameters for dispersion images from multichannel surface wave data
Series title:
Pure and Applied Geophysics
Volume
161
Issue:
1
Year Published:
2004
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Pure and Applied Geophysics
First page:
185
Last page:
201
Number of Pages:
17