Version numbering for different simulation implementations used
| Version | Notes | SRF gen | SRF LF dx/dy/dz | AWP code | LF Anelastic para | Vsmin | VM dx/dy/dz | LF site amp | SRF HF dx/dy/dz | HF # of rays | Stress drop | HF anelastic para | Kappa | HF Path duration | HF site amp | Trans. freq | BB merge |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| gmsim_v10.1 | GP10 approach | specify the gp gen code | 0.1km | emod3d version | Qs=50Vs; Qp=2Qs | 500m/s | 0.1km | CB08; empirical till T=2sec, then linear descrease till 5sec. | 2km | 1 | fixed=5MPa | Qs=a+bVs | 0.045 | 1/fc + 0.063R | CB08 | 1Hz | 4th order butterworth fourier amps |
| gmsim_v15.1 | GP15 approach | ||||||||||||||||
| gmsim_v18.5 | gmsim_v15.1 with modified path duration and long period site amp |