Numerical analysis of the geophysical parameter sensitivity on the multimode love wave dispersion curves

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-01-17 DOI:10.1088/2399-6528/ad1f71

La Hamimu La Hamimu, E. Cahyono, Herdi Budiman, S. R. Haraty, Natalis Ransi

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Abstract

The characteristics of multimode Love wave dispersion curves are dependent on various geophysical parameters, namely shear wave velocity (SWV), layer thickness and density. This paper presents a novel numerical analysis of these parameters to determine which ones have a significant effect on the dispersion curves of multimode Love waves. Identifying parameter sensitivity is a crucial step in the inversion procedure of geophysical modeling. Our numerical analysis focuses on perturbing three geophysical parameters that influence the dispersion curves. The results confirm that SWV parameter is the most sensitive. By employing the same perturbation procedure, our numerical analysis reveals that the SWV parameter has a highly significant impact on the multimode Love wave dispersion curves. The average relative error (RE) values are found to be 27.33% for alpha=-0.2 and 25.51% for alpha=+0.2. Conversely, perturbing the layer thickness parameter demonstrates no significant influence on the dispersion curves, resulting in average RE values of 5.69% for alpha=-0.2 and 7.96% for alpha=+0.2. Furthermore, the perturbation of the density parameter exhibits an extremely negligible impact on the multimode Love wave dispersion curves, with average RE values on the order of 10^(−14)%.

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多模爱波频散曲线的地球物理参数敏感性数值分析

多模爱波频散曲线的特征取决于各种地球物理参数，即剪切波速度（SWV）、层厚度和密度。本文对这些参数进行了新颖的数值分析，以确定哪些参数对多模洛夫波频散曲线有显著影响。确定参数敏感性是地球物理建模反演过程中的关键步骤。我们的数值分析侧重于扰动影响频散曲线的三个地球物理参数。结果证实，SWV 参数最为敏感。通过采用相同的扰动程序，我们的数值分析表明，SWV 参数对多模爱波频散曲线的影响非常显著。平均相对误差 (RE) 值在α=-0.2 时为 27.33%，在α=+0.2 时为 25.51%。相反，扰动层厚度参数对频散曲线没有明显影响，平均相对误差（RE）值在 alpha=-0.2 时为 5.69%，在 alpha=+0.2 时为 7.96%。此外，密度参数的扰动对多模爱波频散曲线的影响微乎其微，平均 RE 值约为 10^(-14)%。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.