CSRM-1.0: A China Seismological Reference Model

This high-resolution CSRM-1.0 is constructed for the top 100 km of the crust and uppermost mantle in continental China, based on the constraints of the P-wave polarization angle, short-period Rayleigh wave ellipticity from ambient noise, long-period Rayleigh wave ellipticity from earthquake data, receiver function, empirical Green's function, Rayleigh wave phase/group velocity dispersion curves from regional earthquakes, and Pn-wave travel time extracted from seismic data of 4435 seismic stations during 1990 and 2020. The CSRM-1.0 has a spatial crustal resolution of about 60 km beneath the north-south seismic belt and the trans-north China orogen and about 120 km beneath the rest of continental China, and a spatial mantle resolution of about 300 km. The seismic constraints used for the construction of the model consist of the 479,321 polarization angle measurements from the P-wave waveforms of 9361 tele-seismic earthquakes, the short-period (4 - 8 s) Rayleigh wave ellipticity estimated from continuous seismic ambient noise waveforms recorded by 4211 seismic stations, the 622,972 receiver functions calculated based on the waveforms of 9361 tele-seismic events, the 639,171 inter-station empirical Green's functions from seismic ambient noise, the long-period (20 - 80 s) Rayleigh wave ellipticity estimated from earthquake waveform data of 4193 seismic stations, the 54,792 event-staion Rayleigh wave dispersion curves from regional earthquakes, and the 50,867 Pn-wave travel time data. Please click on link for the datasets. Click link for the paper. 

高分辨率的 CSRM-1.0 是中国大陆地区地壳和上地幔顶部 100 公里的三维地震学模型。构建该模型的地震学约束提取自 1990 至2020 年期间 4435 个台站记录的地震数据,包括远震 P 波极化角度,从地震背景噪声提取的短周期瑞利波椭率,远震接收函数,从地震背景噪声提取的经验格林函数,从区域地震提取的瑞利波相/群速度频散曲线,以及 Pn 波走时。CSRM-1.0 模型在南北地震带和华北造山带的地壳中的空间分辨率约为 60 km 而在中国大陆其他地区的地壳中分辨率约为 120 km,并且其在中国大陆上地幔顶部的分辨率约为 300 km。用于构建模型的地震学约束包括利用 9361 个远震事件 P 波波形测量得到的 479,321 个极化角度测量值,利用 4211 个地震台站连续地震背景噪声波形数据测量的短周期(4-8 秒)瑞利波椭率,基于 9361个远震事件波形计算的 622,972 条接收函数,利用地震背景噪声数据中计算的 639,171 条台站间经验格林函数,利用 4193 个台站记录的地震波形数据测量的长周期(20-80 秒)瑞利波椭率,利用区域地震波形计算的 54,792 条事件-台站间瑞利波频散曲线,以及 50,867 个 Pn 波走时数据。下载上述数据库请点击链接。查看文章请点击链接。

If you face any problem or issue in the usage of this model, please feel free to communicate with the corresponding author Xiao Xiao ([e-mail]).