Data Services Products: EMC-SYNGINE IRIS Syngine supported 1-D Earth models

Summary

The IRIS Synthetics Engine (Syngine) is a webservice that quickly returns synthetic seismograms custom requested by the user. The IRIS DMC stores precalculated TB scale databases of Green’s Functions for several different 1D reference models. This page provides information the 1D reference models supported by Syngine.

Description

The IRIS DMC stores precalculated TB scale databases of Green’s Functions for several different 1D reference models listed below. The Syngine model text files are the input files used by AxiSEM to generate the Green’s function databases used by Instaseis in Syngine.

Syngine model EMC-hosted
reference model
Anelastic Anisotropic Radius units Columns
ak135f ak135f χ meter radius, rho, vpv, vsv, qka, qmu
iasp91 iasp91 χ meter radius, rho, vpv, vsv, qka, qmu
prem_crust20_ocean PREM meter radius, rho, vpv, vsv, qka, qmu, vph, vsh, eta
prem_ani PREM meter radius, rho, vpv, vsv, qka, qmu, vph, vsh, eta
prem_iso PREM χ meter radius, rho, vpv, vsv, qka, qmu, vph, vsh, eta

Key to parameters

radius   Earth radius (m)
rho Density (kg/m^3)
vpv vertical P-wave Velocity (km/s)
vsv vertical S-wave velocity (km/s)
qka compressional Q
qmu shear Q
vph horizontal P-wave Velocity (km/s)
vsh horizontal S-wave velocity (km/s)
eta transversely isotropic model parameter

Citations and DOIs

To cite IRIS DMC Data Products effort:

  • Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern, and R. Aster (2012), Data Products at the IRIS DMC: Stepping Stones for Research and Other Applications, Seismological Research Letters, 83(5), 846–854, http://doi:10.1785/0220120032.

To cite the source of these Earth model:

  • Nissen-Meyer, T., van Driel, M., Stähler, S. C., Hosseini, K., Hempel, S., Auer, L., Colombi, A., and Fournier, A.: AxiSEM: broadband 3-D seismic wavefields in axisymmetric media, Solid Earth, 5, 425-445, http://doi:10.5194/se-5-425-2014, 2014.

  • van Driel, M., Krischer, L., Stähler, S. C., Hosseini, K., and Nissen-Meyer, T.: Instaseis: instant global seismograms based on a broadband waveform database, Solid Earth, 6, 701-717, http://doi:10.5194/se-6-701-2015, 2015.

To reference the use of this Earth model hosted by EMC:

To cite IRIS Earth Model Collaboration (EMC) data product or reference use of its repository:

Credits

  • Tarje Nissen-Meyer (University of Oxford)
  • Martin van Driel (ETH Zürich)
  • Lion Krischer (Munich University)
  • Simon Stähler (Munich University)
  • Kasra Hosseini (Munich University)

Timeline

2015-12-09
released

Categories