Seismic traveltime tomography with deep neural network reparameterization

The test data and inversion results for "Seismic traveltime tomography with deep neural network reparameterization: The method and its application to central Chile".

1. absolute.dat: Synthetic travel-time data
2. event.dat: Event information, including hypocenter location and origin time
3. vel_DNRtomo.xyz: Velocity model obtained from DNRtomo
4. vel_ini.xyz: Input velocity model used for synthetic travel-time calculations
5. vel_tomoDD.xyz: Velocity model obtained from tomoDD