三江地区高精度三维S波速度模型与方位各向异性模型

该数据集为利用背景噪声层析成像方法获得的三江地区三维S波速度及方位各向异性模型数据。首先，通过向国家测震台网数据备份中心申请，以及通过布设地震观测台站获得地震波形数据，然后按天截取背景噪声数据，并在去均值、去趋势、波形尖灭及滤波处理后，利用背景噪声层析成像方法，获得三江地区三维S波速度及方位各向异性模型。该模型数据集可用于进一步研究川滇地区大震孕震背景、岩石圈构造演化及青藏高原扩展等重要科学问题。

This dataset is a 3D S-wave velocity and azimuthal anisotropy model of the Sanjiang region obtained via ambient noise tomography. First, seismic waveform data were collected by submitting applications to the National Seismic Network Data Backup Center and deploying temporary seismic observation stations. Subsequently, ambient noise data were extracted daily, and after preprocessing steps including mean removal, detrending, waveform tapering, and filtering, the 3D S-wave velocity and azimuthal anisotropy model of the Sanjiang region was developed using ambient noise tomography. This model dataset can be used to further explore important scientific issues such as the seismogenic background of major earthquakes in the Sichuan-Yunnan region, lithospheric tectonic evolution, and the expansion of the Tibetan Plateau.