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Acoustic noise from volcanoes - Theory and experimentThe paper discusses some theoretical aspects of acoustic investigation of volcanoes and describes a field experiment involving the recording, analysis, and interpretation of acoustic radiation from energetic fumaroles at Volcan Acatenango, Guatemala, during mid-January 1973. Particular attention is given to deriving information about the flow velocity of the erupting medium from acoustics as a means to study eruption dynamics. Theoretical considerations suggest that acoustic power radiated during gaseous volcanic eruptions may be related to gas exit velocity according to appropriate power laws. Eruption acoustics proves useful as a means of quantitative monitoring of volcanic activity.
Document ID
19760054315
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Woulff, G.
(Smithsonian Institution Washington, DC, United States)
Mcgetchin, T. R.
(California, University Los Alamos, N. Mex.; Smithsonian Institution, National Museum of National History, Washington, D.C., United States)
Date Acquired
August 8, 2013
Publication Date
June 1, 1976
Publication Information
Publication: Geophysical Journal
Volume: 45
Issue: 3, Ju
Subject Category
Geophysics
Accession Number
76A37281
Funding Number(s)
CONTRACT_GRANT: NGR-22-009-637
CONTRACT_GRANT: NSG-07012
Distribution Limits
Public
Copyright
Other

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