Geogiga DW Tomo 6.0 - Refraction Tomography Software

Features | Screenshots | Version

Refraction Tomography does not require layer assignment and phantom prior to inversion. The complex velocity structure can be estimated directly from the first arrivals. This approach is especially suitable to derive the structure with no distinct layer interface due to the gradual velocity change where the traditional interpretation methods are invalid.

Geogiga DW Tomo utilizes the robust grid ray tracing and regularized inversion approach; allows the variable surface. The estimated model can also be used for the statics correction in the seismic reflection data processing.

Main Features:

• Load all shots along a profile at the same time
• Quickly check and assign geometry
• Frequency filter including Butterworth and Ormsby filters with the option of band pass, low pass, high pass, band reject, and notch
• Gain control: automatic gain control (AGC), trace balance, time variant scaling, single trace scaling, etc.
• Undo/Redo multi-step operations on seismic data
• Interactively pick first breaks with a trace magnifier
• Robust grid ray tracing
• Regularized iterative inversion with constraints
• Multi-approaches to build initial model
• Allow variable surface
• QC the picked and calculated first arrivals directly on the seismic traces
• Fitting error analysis
• Interactively pause or resume the procedure during tomography
• Simultaneously update the display of first breaks and ray paths
• Review the inverted model in each iteration
• Plot color section with contours and editable stratigraphic symbols
• Output color section overlaid with ray paths

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Features | Screenshots | Version