Vriend, Nathalie M. and Hunt, Melany L. and Clayton, Robert W. and Brennen, Christopher Earls and Brantley, Katherine S. and Ruiz-Angulo, Angel (2008) Reply to comment by B. Andreotti et al. on "Solving the mystery of booming sand dunes". Geophysical Research Letters, 35 (L08). Art. No. L08307. ISSN 0094-8276. doi:10.1029/2008GL033202. https://resolver.caltech.edu/CaltechAUTHORS:20111208-105043039
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Abstract
This reply addresses three main issues raised in the comment of Andreotti et al. [2008]. First, the turning of ray paths in a granular material does not preclude the propagation of body waves and the resonance condition described by Vriend et al. [2007]. The waveguide model still holds in the dune for the observed velocities, even with a velocity increase with depth as implied by Andreotti et al. [2008]. Secondly, the method of initiation of spontaneous avalanching does not influence the booming frequency. The frequency is independent of the source once sustained booming starts; it depends on the subsurface structure of the dune. Thirdly, if all data points from Vriend et al. [2007] are included in the analysis (and not an average or selection), no correlation is observed between the sustained booming frequency and average particle diameter.
Item Type: | Article | |||||||||
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Additional Information: | © 2008 by the American Geophysical Union. Received 7 January 2008; accepted 3 March 2008; published 23 April 2008. | |||||||||
Group: | Seismological Laboratory | |||||||||
Issue or Number: | L08 | |||||||||
DOI: | 10.1029/2008GL033202 | |||||||||
Record Number: | CaltechAUTHORS:20111208-105043039 | |||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20111208-105043039 | |||||||||
Official Citation: | Vriend, N. M., M. L. Hunt, R. W. Clayton, C. E. Brennen, K. S. Brantley, and A. Ruiz-Angulo (2008), Reply to comment by B. Andreotti et al. on “Solving the mystery of booming sand dunes”, Geophys. Res. Lett., 35, L08307, doi:10.1029/2008GL033202. | |||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
ID Code: | 28372 | |||||||||
Collection: | CaltechAUTHORS | |||||||||
Deposited By: | George Porter | |||||||||
Deposited On: | 08 Dec 2011 19:20 | |||||||||
Last Modified: | 09 Nov 2021 16:56 |
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