CaltechAUTHORS
  A Caltech Library Service

In situ acoustic attenuation measurements in glacial ice

Westphal, James A. (1965) In situ acoustic attenuation measurements in glacial ice. Journal of Geophysical Research, 70 (8). pp. 1849-1853. ISSN 0148-0227. https://resolver.caltech.edu/CaltechAUTHORS:20141110-103819651

[img]
Preview
PDF - Published Version
See Usage Policy.

295Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20141110-103819651

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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1029/JZ070i008p01849DOIArticle
http://onlinelibrary.wiley.com/doi/10.1029/JZ070i008p01849/abstractPublisherArticle
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.
Funders:
Funding AgencyGrant Number
NSFGP-745
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Caltech Division of Geological Sciences1293
Issue or Number:8
Record Number:CaltechAUTHORS:20141110-103819651
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20141110-103819651
Official Citation:Westphal, J. A. (1965), In situ acoustic attenuation measurements in glacial ice, J. Geophys. Res., 70(8), 1849–1853, doi:10.1029/JZ070i008p01849.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51499
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:10 Nov 2014 19:00
Last Modified:03 Oct 2019 07:33

Repository Staff Only: item control page