Geogiga Technology Corp.

Geogiga Technology Corp.

- Version 7.3 - Surface Wave Data Processing Software

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SURFACEis able to process active surface waves with SASW and MASW. The dispersion spectrum can be calculated in F-K, F-V or F-P domain, where the fundamental and high-mode dispersion curves are interactively picked. The robust forward modeling and the global genetic algorithm (GA) assure the quick convergence of inversion.

  • Load all shots at one time, browse and select any record for QC
  • Mute noise in time domain and select traces for dispersion analysis
  • Test the apparent velocity of surface waves on seismic data
  • Check frequency range with amplitude spectrum analysis
  • Process active surface waves with SASW and MASW
  • Calculate dispersion spectrum in F-K, F-V or F-P domain with high resolution FK method
  • Interactively pick fundamental and high-mode dispersion curves with a spectrum graph
  • Automatically build an initial model and interactively define the initial model
  • Allow fixed layers in inversion
  • Specify Poisson's ratio and density used in inversion
  • Jointly invert fundamental and high-mode dispersion curves with genetic algorithm (GA)
  • Interactively pause and resume or stop the inversion procedure
  • Calculate apparent Vs, Vs30(or Vs100) and depth-weighted velocities
  • Plot dispersion and velocity curve at a single location
  • Compare different dispersion and velocity curves at the same location
  • Display the dispersion curves and velocity section along a line
  • Output velocity section with contours and editable stratigraphic symbols

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