Determination of Ice Cover Parameters Using Seismoacoustic Noise

IF 0.9 4区物理与天体物理 Q4 ACOUSTICS

Acoustical Physics Pub Date : 2023-11-16 DOI:10.1134/S1063771023600341

D. A. Presnov, A. L. Sobisevich, A. S. Shurup

引用次数: 0

Abstract—A method for estimating ocean ice cover parameters (thickness, Young’s modulus, Poisson ratio, and density) that does not require the use of a source is proposed and tested on experimental data. To realize the approach, two single-channel seismic receivers located on the ice surface are required to record the vertical component of the oscillatory velocity of the seismic noise. The spectral-correlation analysis of the mutual correlation function of the noise registered by the receivers allows us to estimate the dispersion dependence of the group velocity of the bending-gravity wave propagating along the ice plate. The solution of the inverse problem is based on analyzing the variance of not only the group but also the phase velocity, which allows us to increase the amount of primary data. The obtained estimates of ice parameters are consistent with the results of independent observations carried out during the experiment, as well as with the estimates of other authors obtained for ice characteristics in the region of the experiment.

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利用地震声噪声测定冰盖参数

摘要:提出了一种不需要使用源的估算海洋冰盖参数(厚度、杨氏模量、泊松比和密度)的方法，并在实验数据上进行了测试。为了实现该方法，需要两个位于冰面上的单通道地震接收器记录地震噪声振荡速度的垂直分量。通过对接收噪声相互相关函数的频谱相关分析，我们可以估计沿冰板传播的弯曲重力波群速度的色散依赖性。反问题的求解不仅要分析群的方差，还要分析相速度的方差，这使我们能够增加原始数据的数量。获得的冰参数估计值与实验期间进行的独立观测结果以及其他作者对实验区域冰特征的估计值一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acoustical Physics 物理-声学

CiteScore

1.60

自引率

50.00%

发文量

审稿时长

3.5 months

期刊介绍： Acoustical Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It covers theoretical and experimental aspects of basic and applied acoustics: classical problems of linear acoustics and wave theory; nonlinear acoustics; physical acoustics; ocean acoustics and hydroacoustics; atmospheric and aeroacoustics; acoustics of structurally inhomogeneous solids; geological acoustics; acoustical ecology, noise and vibration; chamber acoustics, musical acoustics; acoustic signals processing, computer simulations; acoustics of living systems, biomedical acoustics; physical principles of engineering acoustics. The journal publishes critical reviews, original articles, short communications, and letters to the editor. It covers theoretical and experimental aspects of basic and applied acoustics. The journal welcomes manuscripts from all countries in the English or Russian language.