发表机构
Indian Institute of Science Education and Research Pune（印度科学教育研究学院普纳分校）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文介绍SW1D，一个用于一维弹性介质中计算瑞利和洛夫波频散曲线及合成地震图的Python软件包，通过传播矩阵法求解表面波特征值问题，并经严格验证和基准测试，定位于Python地震学工具生态系统中。
AI 中文摘要
我们介绍了SW1D，这是一个Python版本的遗留代码，用于在弹性、各向同性、横向均匀介质中正向计算瑞利波和洛夫波频散曲线以及合成地震图。该代码使用传播矩阵技术求解一维介质的表面波特征值问题，随后在频率域内，针对由矩张量描述的点震源获得表面波激发。SW1D通过严格的理论分析得到验证，并与一个成熟的 seismological 软件包进行了基准测试。最后，我们展示了它在基于Python的地震学工具生态系统中的位置，这些工具专为特定应用而设计，如模拟穿过横向不连续性的表面波传播，或对具有任意空间分布的周围地震源的背景噪声互相关进行正向建模。
英文摘要
We present SW1D, a Python version of a legacy code for the forward computation of Rayleigh and Love wave dispersion curves as well as synthetic seismograms, in elastic, isotropic, laterally homogeneous media. This code solves the surface wave eigenvalue problem for 1-D media using a propagator-matrix technique and subsequently obtains surface wave excitations, in the frequency domain, for a point source described by its moment tensor. SW1D is validated through rigorous theoretical analyses and benchmarked against a well-established seismological software package. Ultimately, we demonstrate its place within an ecosystem of Python-based seismological tools designed for niche applications such as modelling surface wave propagation across lateral discontinuities, or forward modelling of ambient noise cross-correlations with arbitrary spatial distributions of ambient seismic sources.
Comments28 pages, two appendices, 13 figures in all
