Determining generic velocity and density models for crustal amplification calculations, with an update of the Boore and Joyner (1997) Generic Site Amplification for Graphic Site Amplification
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Abstract
This short note contains two contributions related to deriving depth‐dependent velocity and density models for use in computing generic crustal amplifications. The first contribution is a method for interpolating two velocity profiles to obtain a third profile with a time‐averaged velocity 
to depth Z that is equal to a specified value (e.g., for shear‐wave velocity VS, 
for Z=30 m, in which the subscript S has been added to indicate that the average is for shear‐wave velocities). The second contribution is a procedure for obtaining densities from VS. The first contribution is used to extend and revise the Boore and Joyner (1997) generic rock VS model, for which 
, to a model with the more common 
. This new model is then used with the densities from the second contribution to compute crustal amplifications for a generic site with 
.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Determining generic velocity and density models for crustal amplification calculations, with an update of the Boore and Joyner (1997) Generic Site Amplification for Graphic Site Amplification |
| Series title | Bulletin of the Seismological Society of America |
| DOI | 10.1785/0120150229 |
| Volume | 106 |
| Issue | 1 |
| Publication Date | December 29, 2015 |
| Year Published | 2016 |
| Language | English |
| Publisher | Seismological Society of America |
| Publisher location | Stanford, CA |
| Contributing office(s) | Earthquake Science Center |
| Description | 5 p. |
| First page | 316 |
| Last page | 320 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |