4.5 Article

Sensitivity study of the critical angle in elastic orthorhombic media

期刊

GEOPHYSICAL PROSPECTING
卷 -, 期 -, 页码 -

出版社

WILEY
DOI: 10.1111/1365-2478.13457

关键词

anisotropy; modelling; numerical study; refracted wave; seismic; velocity analysis; wave propagation

向作者/读者索取更多资源

The critical angle is crucial in data processing for refraction seismology. This study proposes a method to determine the critical angle and analyzes its sensitivity to model parameters and azimuthal range. Sensitivity analysis is applied to examine the existence of the critical angle and determine its corresponding values to variations in model parameters and azimuthal range.
The critical angle plays a crucial role in data processing for refraction seismology. In the context of three-dimensional data, the critical angle exhibits azimuthal dependence, particularly in the presence of an anisotropic model. In this paper, we propose a method to determine the critical angle (phase angle) and analyse the sensitivity of the critical angle to the model parameters and the available azimuthal range for both transversely isotropic medium with a vertical symmetry axis and orthorhombic models. For more complex orthorhombic models, the critical angle can be computed while considering changes in azimuth. In a numerical example, we apply sensitivity analysis to examine the existence of the critical angle and determine its corresponding values to variations in model parameters and the azimuthal range. Additionally, we conduct computations of the critical angle for the simplified acoustic and elliptical orthorhombic models. This analysis can be extended to encompass all model parameters for different wave modes (pure and converted waves), and they provide generalized predictions for the available range of data in seismic data processing applications.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据