Mellman, George R. and Helmberger, Donald V. (1974) High-frequency attenuation by a thin high-velocity layer. Bulletin of the Seismological Society of America, 64 (5). pp. 1383-1388. ISSN 0037-1106. https://resolver.caltech.edu/CaltechAUTHORS:20140902-153934113
|
PDF
- Published Version
See Usage Policy. 333kB |
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20140902-153934113
Abstract
The Cagniard-de Hoop method is used to investigate elastic-wave tunneling through a thin high-velocity layer. The results indicate high-frequency attenuation in the geometric shadow zone. Attenuation is roughly proportional to layer thickness. Comparison of results obtained by omitting the high-velocity layer but using an average Q operator shows that effects of the high-velocity layer are similar to Q effects, with the equivalent Q for a given layer thickness varying as a function of source-receiver distance. These attenuation effects are explained in terms of deformation of the de Hoop contour.
Item Type: | Article | ||||||||
---|---|---|---|---|---|---|---|---|---|
Related URLs: |
| ||||||||
Additional Information: | © 1974 Seismological Society of America. Manuscript received March 21, 1974. This research was supported by the Advanced Research Projects Agency of the Department of Defense and was monitored by the Air Force Office of Scientific Research under Contracts F44620-72-C-0078 and F44620-72-C-0083. | ||||||||
Funders: |
| ||||||||
Other Numbering System: |
| ||||||||
Issue or Number: | 5 | ||||||||
Record Number: | CaltechAUTHORS:20140902-153934113 | ||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140902-153934113 | ||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
ID Code: | 49155 | ||||||||
Collection: | CaltechAUTHORS | ||||||||
Deposited By: | Tony Diaz | ||||||||
Deposited On: | 03 Sep 2014 16:26 | ||||||||
Last Modified: | 03 Oct 2019 07:11 |
Repository Staff Only: item control page