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:
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）模拟生成的合成地震信号，用于针对富尔奈斯火山（Piton de la Fournaise）的落石地震信号开展研究。数据集涵盖两类模型生成的合成信号：一类为平坦地表参考模型，另一类为分辨率10米的多洛米厄火山口（Dolomieu crater）地表地形模型。

本次模拟针对BON、BOR、DSO及SNE四台地震仪展开，采用形式为7Hz雷克子波（Ricker wavelet）的地表点力，分别沿垂直方向（'vertical_Z'）、东向（'horizontal_E'）及北向（'horizontal_N'）施加。

源位置信息存储于'source.txt'文件，台站位置信息存储于'stations.txt'文件。'traces'文件夹中包含与每个台站对应的结果文件，文件内共7列数据，分别为模拟时间t、地表位移s与地表速度v，具体列信息如下：
时间t（s）|东向位移s_X（m）|北向位移s_Y（m）|垂向位移s_Z（m）|东向速度v_X（m/s）|北向速度v_Y（m/s）|垂向速度v_Z（m/s）

采样频率为100Hz