川滇地区上地幔三维S波衰减模型

该数据集为利用基于全波形的伴随衰减成像方法反演获得的川滇周边地区的三维上地幔S波Q值模型数据。首先向国家测震台网数据备份中心申请获得地震波形数据，利用采集的地震波形数据，按地震事件截取高信噪比的S波震相数据，并在去均值、去趋势、波形尖灭及滤波处理后提取S波振幅信息，最后利用波形伴随衰减成像方法对S波振幅数据进行反演，获得川滇地区的三维S波衰减模型。该模型数据集可用于进一步研究川滇地区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 upper mantle S-wave Q-value model of the region surrounding the Sichuan-Yunnan area, inverted using the full-waveform adjoint attenuation tomography method. First, seismic waveform data were obtained through application to the National Seismograph Network Data Backup Center. Using the collected seismic waveform data, S-wave phase data with high signal-to-noise ratio (SNR) were clipped based on individual seismic events. Subsequently, S-wave amplitude information was extracted after processing steps including demeaning, detrending, waveform tapering, and filtering. Finally, the S-wave amplitude data were inverted via the full-waveform adjoint attenuation tomography method to generate the 3D S-wave attenuation model of the Sichuan-Yunnan region. This model dataset can be applied to further investigations of key scientific issues such as lithospheric tectonic evolution and the expansion of the Tibetan Plateau in the Sichuan-Yunnan area.