List: Inversion

From GeopsyWiki
Jump to navigation Jump to search

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.


  • dinver: inversion with Neighborhood Algorithm[1] modified after [2]. 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)

Forward computations

  • gplivemodel: interactive plot of dispersion curve, ellipticity curve and SH transfer function
  • gpdc: computation of dispersion curves.
  • gpec8: determines site class from Vs profiles (Eurocode 8).
  • gpell: computation of ellipticity curves.
  • gpsh: computation of SH transfer curves (available but empty).
  • gpspac: computation of auto-correlation ratio curves.
  • gprefra: computation of travel time ("classical refraction").


  • gppoisson: simple converter between Poisson's ratio, Vs, and Vp.
  • gpprofile: extracts Poisson's ratio, Vs, or Vp profiles from a model file. Additionally, it can output Vs30, Vs average at any depth, envelope of an ensemble of profile, resample profiles,...
  • 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.


  1. Sambridge, M. (1999)
  2. Wathelet (2008). GRL,