Geogiga Front End - Version 9.3 -Seismic Data Preprocessing

Data formats

• Support SEG-2, SEG-Y, SEG-D, ASCII, SAC, SAF, miniSEED, MALA, ImpulseRadar, etc.
• Convert other data formats to SEG-2, SEG-Y, or ASCII format

Batch processing

• Vertical stacking and vibroseis correlation
• Assemble traces recorded by nodal seismometers
• Extract traces from multiple seismic files by channels or offsets
• Split a single seismic file into multiple files
• Integrate multiple seismic files into a single file
• Resample and cut seismic data
• Correct trigger delay
• Assign geometry

Single Shot Data processing

• Check and define geometry
  Resample
• Reverse trace polarity
  Swap traces
• Interactively shift a single trace
• Interactively correct trigger delay guided by air wave
• Butterworth and Ormsby filtering in a defined time window or on selected traces with low pass, high pass, band pass, band reject, and notch options
• AGC, trace balance, and time variant scaling
• Divergence correction and normalization
• Scaling or surgical muting within any arbitrary trace region
• Undo or redo multiple steps in data processing

Miscellaneous functions

• Analyze amplitude decay with time
• Pick first breaks and save picks with amplitude
• Save selected traces
• Print and save trace plot