Finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions ...
Numerical modeling of waveform diffractions along the rim of a volcano vent shows high correlation to observed explosion signals at Karymsky Volcano, Kamchatka, Russia. The finite difference modeling assumed a gaussian source time function and an axisymmetric geometry. A clear demonstration of the s...
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ftdatacite:10.17615/p746-bh84 2024-03-31T07:53:42+00:00 Finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions ... Lees, J.M. Kim, K. 2011 https://dx.doi.org/10.17615/p746-bh84 https://cdr.lib.unc.edu/concern/articles/vx021q97m en eng Blackwell Publishing Ltd In Copyright http://rightsstatements.org/vocab/InC/1.0/ Text article-journal Article ScholarlyArticle 2011 ftdatacite https://doi.org/10.17615/p746-bh84 2024-03-04T11:43:12Z Numerical modeling of waveform diffractions along the rim of a volcano vent shows high correlation to observed explosion signals at Karymsky Volcano, Kamchatka, Russia. The finite difference modeling assumed a gaussian source time function and an axisymmetric geometry. A clear demonstration of the significant distortion of infrasonic wavefronts was caused by diffraction at the vent rim edge. Data collected at Karymsky in 1997 and 1998 were compared to synthetic waveforms and variations of vent geometry were determined via grid search. Karymsky exhibited a wide range of variation in infrasonic waveforms, well explained by the diffraction, and modeled as changing vent geometry. Rim diffraction of volcanic infrasound is shown to be significant and must be accounted for when interpreting source physics from acoustic observations. ... Text Kamchatka DataCite Metadata Store (German National Library of Science and Technology) |
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DataCite Metadata Store (German National Library of Science and Technology) |
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English |
description |
Numerical modeling of waveform diffractions along the rim of a volcano vent shows high correlation to observed explosion signals at Karymsky Volcano, Kamchatka, Russia. The finite difference modeling assumed a gaussian source time function and an axisymmetric geometry. A clear demonstration of the significant distortion of infrasonic wavefronts was caused by diffraction at the vent rim edge. Data collected at Karymsky in 1997 and 1998 were compared to synthetic waveforms and variations of vent geometry were determined via grid search. Karymsky exhibited a wide range of variation in infrasonic waveforms, well explained by the diffraction, and modeled as changing vent geometry. Rim diffraction of volcanic infrasound is shown to be significant and must be accounted for when interpreting source physics from acoustic observations. ... |
format |
Text |
author |
Lees, J.M. Kim, K. |
spellingShingle |
Lees, J.M. Kim, K. Finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions ... |
author_facet |
Lees, J.M. Kim, K. |
author_sort |
Lees, J.M. |
title |
Finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions ... |
title_short |
Finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions ... |
title_full |
Finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions ... |
title_fullStr |
Finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions ... |
title_full_unstemmed |
Finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions ... |
title_sort |
finite-difference time-domain modeling of transient infrasonic wavefields excited by volcanic explosions ... |
publisher |
Blackwell Publishing Ltd |
publishDate |
2011 |
url |
https://dx.doi.org/10.17615/p746-bh84 https://cdr.lib.unc.edu/concern/articles/vx021q97m |
genre |
Kamchatka |
genre_facet |
Kamchatka |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.17615/p746-bh84 |
_version_ |
1795033712720609280 |