评《解开蓬勃发展的沙丘之谜》
Comment on "Solving the mystery of booming sand dunes"
摘要：
我们在这里表明，Vriend等人使用的标准物理模型。分析地震仪数据，即一个非色散的批量传播，不适用于沙丘的表层。根据几个实验，理论和现场结果，声波在重力作用下的干砂床中唯一可能的传播是通过无限的，但离散的，数量分散的表面模式。此外，我们提出了一系列的证据，其中大部分已经发表在文献中，蓬勃发展的雪崩的频率是不控制的任何共振，在这篇文章中所讨论的。特别地，将Vriend等人提供的数据绘制为表格，结果是他们没有呈现出轰鸣频率与他们对谐振频率的估计之间的任何相关性。
英文摘要：
We show here that the standard physical model used by Vriend et al. to analyse seismograph data, namely a non-dispersive bulk propagation, does not apply to the surface layer of sand dunes. According to several experimental, theoretical and field results, the only possible propagation of sound waves in a dry sand bed under gravity is through an infinite, yet discrete, number of dispersive surface modes. Besides, we present a series of evidences, most of which have already been published in the literature, that the frequency of booming avalanches is not controlled by any resonance as argued in this article. In particular, plotting the data provided by Vriend et al. as a table, it turns out that they do not present any correlation between the booming frequency and their estimate of the resonant frequency.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
