Global and Regional 3D Waveform Simulation Results for Crustal Scattering on Mars

This repository contains the synthetic seismic waveforms presented in the paper titled "Numerical Simulations of 3D Scattering Structures Reveal Systematic Underestimation of Marsquake Magnitudes". Synthetic seismograms were computed using A Modified SPECFEM3D_GLOBE Implementation for Martian Crustal Scattering (avilable at https://doi.org/10.5281/zenodo.20639284), which was specifically adapted from the official open-source release of the SPECFEM3D_GLOBE package by Komatitsch et al. (2023) (https://doi.org/10.5281/zenodo.10411115). Nomenclature for data directories: G: global simulation R2/R3: regional simulation NoTopo/1D: 1D model without topography TopoS[3/7/15]: 1D model + topography (smoothed with 3/7/15 points) Topo_Moho: 3D model scatter/sc: 3D model (with topography and lateral variations in crustal thickness) + scatterers f5/Mex/Mpp/Mrp/Mrr/Mrt/Mtp/Mtt: focal mechanism a[2/5/10/20/50/100]: correlation length (km) of scatterers m[10/20/30/40/50/60]: maximum velocity perturbation (%) of scatterers h[2-42]: source depth (km) md[80/120/160/200]: cut-off depth (km) of the scattering layer in the upper mantle Q[200/500/1000/2000]: intrinsic quality factor (default 1500) S1094b/S1222aN: event name (S1222a located in the northern lowlands, BAZ = 101 deg)