Down-hole Seismic Processing

The data chosen for this example were acquired at the GeoLogan97 field day held on 15 July 1997, in Logan, Utah. GeoLogan was the first annual convention of the Geo-Institute of ASCE (American Society of Civil Engineers). The site was at a location in the valley floor, below Utah State University. Surface soils were silt. This example illustrates the steps needed to process data from the Bison Engineering Seismograph field records to a final vertical profiles for P- and SH-waves. An Octave procedure is used to invert for soil stiffness and damping properties.

You may download the Geologan97 data set at the BSU Database web page.
Go to https://doi.org/10.18122/geo_data/3/boisestate. The files are in ID-101.zip.
Or go to https://173.255.241.228/BSU/index.php. Click on the check boxes for 1997, Utah, and then on submit. It will list 3 download archives. ID-101.zip is the raw bison files with some scripts that will assign geometry. Run geom followed by geom2. To learn how these two scripts were generated, see section 6.7.5 below.

Alternatively, if you wish to start with SEGY data files, the other two *.zip archives are also available for download.



Subsections