Reciprocal SEM simulations of seismic impulse response at Piton de la Fournaise volcano

This Dataset contains synthetic seismic signals simulated using the Spectral Element Method (SEM) for the study of rockfall seismic signals at Piton de la Fournaise volcano. Synthetic signals from both a reference model with flat surface and a model with Dolomieu crater surface topography of 10m resolution are contained. The simulations were carried out reciprocally for seismometers BON, BOR, DSO and SNE, implementing surface point force in form of a 7Hz Ricker wavelet directed vertically ('vertical_Z'), eastwards ('horizontal_E'), and northwards ('horizontal_N'). The respective source position is stored in 'source.txt' and the measurement positions in 'stations.txt'. The 'traces'-folder contains a file corresponding to each station with 7 columns including simulation time t, ground displacement s and ground velocity v:<br> Time t (s) | East s_X (m) | North s_Y (m) | Vertical s_Z (m)| East v_X (m/s) | North v_Y (m/s) | Vertical v_Z (m/s) Sampling frequency: 100Hz本数据集包含采用谱元法（Spectral Element Method，SEM）模拟得到的合成地震信号，用于研究富尔奈斯火山（Piton de la Fournaise）的落石地震信号。数据集涵盖两类合成信号：一类基于平坦地表参考模型，另一类基于分辨率为10米的多洛米厄火山口（Dolomieu crater）地表地形模型。本次模拟基于互易定理，针对BON、BOR、DSO与SNE四台地震计开展，施加的地表点力采用7Hz雷克子波（Ricker wavelet），分别沿垂直方向（'vertical_Z'）、东向（'horizontal_E'）与北向（'horizontal_N'）。对应震源位置存储于'source.txt'文件，观测台站位置存储于'stations.txt'文件。'traces'文件夹内包含每个台站对应的结果文件，每个文件包含7列数据，依次为模拟时间t、地表位移s与地表速度v，具体列信息如下：时间t（秒） | 东向位移s_X（米） | 北向位移s_Y（米） | 垂向位移s_Z（米） | 东向速度v_X（米/秒） | 北向速度v_Y（米/秒） | 垂向速度v_Z（米/秒）。本数据集的采样频率为100Hz。