Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published April 15, 1965 | Published
Journal Article Open

In situ acoustic attenuation measurements in glacial ice

Abstract

The attenuation coefficient of ice in a temperate valley glacier was measured by spectral analysis of the pressure pulse, directly transmitted through the ice from a small explosion. Values varied from 0.014±.002/m at 2.5 kc/s to 0.215±.002/m at 15 kc/s. The attenuation function follows a form α = A + Bƒ^4 closely, suggesting Rayleigh-type scattering as the dominant source of attenuation of high-frequency acoustic waves in glacial ice. Scattering from ice crystal boundaries is compatible with the observed scattering coefficient.

Additional Information

Copyright 1965 by the American Geophysical Union. (Manuscript received November 28, 1964; revised January 20, 1965.) I would like to thank Drs. H. Dix, B. Murray, and D. Anderson for valuable discussions and Dr. C. Allen for help with part of the field work. This research was supported by NSF grant GP-745. Contribution 1293.

Attached Files

Published - jgr4542.pdf

Files

jgr4542.pdf
Files (302.7 kB)
Name Size Download all
md5:2a972dba56e82a989f34c26c8dabbeee
302.7 kB Preview Download

Additional details

Created:
August 19, 2023
Modified:
October 18, 2023