川滇地区地壳三维速度模型

该数据集为利用基于全波形的伴随成像方法反演获得的川滇周边地区的三维地壳速度模型数据。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，然后利用采集的地震波形数据，按地震事件截取高信噪比的震相数据，并在去均值、去趋势、波形尖灭及滤波处理后，最后利用波形伴随成像方法进行反演，获得川滇地区的三维地壳速度模型。该模型数据集可用于进一步研究川滇地区大震孕育机理、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 crustal velocity model of the surrounding Sichuan-Yunnan region, obtained via inversion using the full-waveform adjoint tomography method. First, seismic waveform data was obtained through application to the National Seismograph Network Data Backup Center. Next, high signal-to-noise ratio (SNR) phase data was extracted from the collected seismic waveforms based on individual seismic events. After processing steps including demeaning, detrending, tapering, and filtering, inversion was performed using the waveform adjoint tomography method to derive the 3D crustal velocity model of the Sichuan-Yunnan region. This model dataset can be used for further research on key scientific issues such as the mechanism of large earthquake nucleation in the Sichuan-Yunnan region, lithospheric tectonic evolution, and the expansion of the Tibetan Plateau.

搜集汇总

背景与挑战

背景概述

该数据集为川滇地区的三维地壳速度模型，基于全波形伴随成像方法反演获得，空间分辨率为10km至100km，数据大小为1.62 MB。它可用于研究大震孕育机理、岩石圈构造演化及青藏高原扩展等重要科学问题，数据以文本格式存储，需申请获取。