List: Inversion

This is the list of applications and commands commonly used for the inversion of surface waves. Notes that dinver and gpdcreport are not restricted to surface wave inversion.

Inversion

• dinver: inversion with Neighborhood Algorithm modified after . Various plug-ins are available each one implementing a specific inversion problem:
  • Surface wave inversion (dinverdc)
  • Custom forward problem computed with Matlab (dinvermatlab)
  • Custom forward problem computed with an external tool (dinverext)

• gpdcmisfit: recomputes misfits of models produced by an inversion.
• gpdcreport: analysis of inversion report (from dinver).
• gpdepth: computes a parameterization from a minimum and a maximum wavelength
• gpviewdcreport: plots inversion reports (from dinver).

Forward computations

• gplivemodel: interactive plot of dispersion curve, ellipticity cusve and SH transfer function
• gpdc: computation of dispersion curves.
• gpec8: determines site class from Vs profiles (Eurocode 8).
• gpell: computation of ellipticity curves.

curves.

• gpsh: computation of SH transfer curves (available but empty).
• gpspac: computation of auto-correlation ratio curves.
• gprefra: computation of travel time ("classical refraction").

Utilities

• gppoisson: simple converter between Poisson's ratio, Vs, and Vp.
• gpprofile: extracts Poisson's ratio, Vs, or Vp profiles from a model file.
• gpsort: re-arranges curve order in a file (handy for gppac output).
• gpgroup2phase: scans possible phase dispersion curves from a group dispersion curve.
• gpmodel2param: transforms a model file into a parameterized ground structure
• gpparam2model: produces model files from parameter sets and a given parametrized ground structure.