Pre-CSRM: A 3-D seismic model of the shallow crust in the continental China

This high-resolution shallow three-dimensional seismic model is constructed for the top 10 km of the upper crust in the continental China, based on the constraints of P polarization, Rayleigh wave ellipticity and receiver function obtained from records of 3848 seismic stations during 1990 and 2017. The model has a spatial resolution of 0.3 degree * 0.3 degree in the north-south seismic belt and the trans-north China orogen, and 0.5 degree * 0.5 degree in the rest of the continental China (except the Tarim basin and the southwest Tibet). The seismic constraints used for the construction of the model consist of <strong>5,439,702</strong> polarization angle measurements from P-wave waveforms of 9361 tele-seismic earthquakes, short-period (4 - 8 s) Rayleigh wave ellipticity estimated from the continuous waveforms of seismic ambient noise, stacked receiver function estimated from 2,125,021 original receiver functions calculated based on the waveforms of 9361 tele-seismic events. Please click on <strong>link</strong> for the datasets. 利用自1990至2017年间部署在中国大陆区域 3848 个台站的数据提取的 P 波偏振、瑞利波椭率和接收函数作为约束, 我们构建了中国大陆区域地壳顶部10 km范围内的高分辨率浅层三维地震学模型。该模型在南北地震带和华北造山带地区的空间分辨率为 0.3 度 * 0.3 度 ,在中国大陆其他地区的空间分辨率为 0.5 度 * 0.5 度 (除塔里木盆地和西藏西南地区)。构建模型的地震学约束包括从 9361 个远震 的 P 波波形数据测量的 <strong>5,439,702 </strong>个偏振角度观测、从连续背景噪声波形数据估计的短周期 (4 - 8 s)瑞利波椭率频散观测、和利用 2,125,021 条原始接收函数(基于 9361 个远震的波形数据计算)估计的叠加接收函数观测。下载上述数据库请点击<strong>链接</strong>。 <strong>Reference</strong>: Xiao, X., Cheng, S., Wu, J., Wang, W., Sun, L., Wang, X., &amp; Wen, L. (2021). Shallow seismic structure beneath the continental China revealed by P-wave polarization, Rayleigh wave ellipticity and receiver function. Geophysical Journal International, 225(2), 998-1019. <strong>Paper link</strong> If you face any problem or issue in the usage of these models, Please feel free to communicate with the corresponding author Xiao Xiao: <strong>[e-mail]</strong>.