川滇地区台站下方频散曲线结果

该数据集为利用背景噪声及远震面波方法获得的川滇周边地区台站下方频散曲线结果。首先通过布设地震观测台站获得地震波形数据，利用采集的地震波形数据，对于每个台站按每天截取，并在去均值、去趋势、去仪器响应及滤波后，基于背景噪声与远震面波通过时频分析计算频散曲线，并采用快速行进法反演，获得川滇地区台站下方频散曲线结果。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 provides dispersion curves beneath seismic stations in the surrounding region of Sichuan-Yunnan, derived using ambient noise and teleseismic surface wave methods. First, seismic waveform data were collected via deployed seismic observation stations. For each station, the collected data were clipped daily, then processed by removing the mean, detrending, correcting for instrument response, and filtering. Subsequently, dispersion curves were calculated via time-frequency analysis based on ambient noise and teleseismic surface waves, and inverted using the fast marching method to obtain the dispersion curve results beneath stations in the Sichuan-Yunnan region. This modeled dataset can be used to further investigate key scientific issues such as the seismogenic background of large earthquakes 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

该数据集为利用背景噪声及远震面波方法获得的川滇地区台站下方频散曲线结果，通过地震波形数据采集和处理，采用时频分析和反演技术生成。数据集以文本格式存储，空间分辨率为10km至100km，数据量较小（14.50 KB），适用于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。