Resolving Anisotropy and Heterogeneity with P Waveforms

本项目旨在研究地震各向异性，为地壳演化和地幔动力学提供重要线索。该项目提出了一种同时使用宽带P波到达的三分量单站和阵列数据的新方法，这种方法可能对各向异性和各向同性非均质性之间的权衡不那么敏感，也可能对各向异性的空间范围和强度之间的权衡不那么敏感。该方法为近接收地上地幔和地壳的各向异性成像提供了一种新的工具。这项研究将为纵波的行为提供更现实的观点，表征从源-接收大圆的纵向运动的偏差，并提供表征各向异性的不同方法。

9902422MastersThis project is to study seismic anisotropy, which can offer important clues about the crustal evolution and the dynamics of the mantle. The project proposes a new way of simultaneously using three-component single station and array data of broad-band P wave arrivals that may be less sensitive to tradeoffs between anisotropy and isotropic heterogeneity or to tradeoffs between spatial extent versus strength of anisotropy. This method provides a new tool to image the anisotropic properties of the near-receiver upper mantle and crust. This study will provide both a more realistic view of the behavior of P-waves, characterizing the deviation of longitudinal motion from the source-receiver great circle and providing a different method of characterizing anisotropy.