SubRidge: a 3-D Subduction-to-Ridge Model with Synthetic Seismic Waveforms for Benchmarking

This repository contains the SubRidge benchmark dataset, consisting of a 3D geodynamic model and a suite of synthetic seismic waveforms. The model simulates the co-evolution of a mid-ocean ridge and two flanking subduction zones, providing spatially variable elastic properties, including 21 elastic constants derived from LPO-based anisotropy simulations. Synthetic seismograms were computed using the spectral-element method (SPECFEM3D_GLOBE), and represent a wide range of source-receiver configurations. The dataset enables testing of seismic imaging methods in a physically realistic and tectonically complex environment, supporting periods down to ~10 seconds. It is intended as a benchmark for inversion workflows, resolution studies, synthetic training, and geophysical education.