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Automated three-dimensional reflection traveltime modelling to detect dipping layer geometries from active seismic data - Matlab code

https://doi.org/10.57804/gqnv-0y39
The code presented in this dataset determines the best-fitting geometries (strike and dip angles) of a dipping reflector with a known surface intersection from pre-stack seismic data, using an automated approach implemented in Matlab©. The modelling is first run on a single gather and then iterated on all available gathers. It requires as input shot or receiver gathers in SEG-Y format, along with first-break and reflection traveltime picks in ASCII format. If desired, also a migrated stacked section can be uploaded. In addition to the resulting reflector geometry the output data shows RMS error matrix, modelled pre- and post-stack reflection and azimuth coverage. The data provide also two example cases, a 3D synthetic model and a 2D real case. To use the code, open ReflectionModelling.m on Matlab© and modify the first part of the code with the desired input and variables, then, run the code and enjoy! See ReflectionModelling_Manual.pdf for more details.
Download data and documentation (41 files / 32.22 MiB)

Data files

  • CMPcoor_ex.txt
    87.3 KiB
  • GNU AFFERO GENERAL PUBLIC LICENSE.txt
    34.36 KiB
  • license_disclaimer.txt
    621 Bytes
  • MigratedStack_ex.segy
    2.1 MiB
  • pickfb_ex_synt.txt
    7.66 KiB
  • pickfb_ex.txt
    38.52 KiB
  • pickref_ex_synt.txt
    7.68 KiB
  • pickref_ex.txt
    38.52 KiB
  • readHD1sgy.m
    15.85 KiB
  • ReflectionModelling_3Dsynt.m
    17.16 KiB
  • ReflectionModelling.m
    16.11 KiB
  • RMoutput1.fig
    1.38 MiB
  • RMoutput10.fig
    11.73 KiB
  • RMoutput11.fig
    513.15 KiB
  • RMoutput12.fig
    256.77 KiB
  • RMoutput13.fig
    1.39 MiB
  • RMoutput14.fig
    2.78 MiB
  • RMoutput2.fig
    11.05 KiB
  • RMoutput3.fig
    517.42 KiB
  • RMoutput4.fig
    255.26 KiB
  • RMoutput5.fig
    1.38 MiB
  • RMoutput6.fig
    11.31 KiB
  • RMoutput7.fig
    510.45 KiB
  • RMoutput8.fig
    257.37 KiB
  • RMoutput9.fig
    1.38 MiB
  • RMsoutput1.fig
    2.06 MiB
  • RMsoutput10.fig
    11.25 KiB
  • RMsoutput11.fig
    487.99 KiB
  • RMsoutput12.fig
    257.28 KiB
  • RMsoutput13.fig
    2.06 MiB
  • RMsoutput2.fig
    10.9 KiB
  • RMsoutput3.fig
    481.1 KiB
  • RMsoutput4.fig
    257.62 KiB
  • RMsoutput5.fig
    1.93 MiB
  • RMsoutput6.fig
    10.97 KiB
  • RMsoutput7.fig
    502.48 KiB
  • RMsoutput8.fig
    258.55 KiB
  • RMsoutput9.fig
    2.06 MiB
  • Shotgathers_ex_synt.mat
    6.56 MiB
  • Shotgathers_ex.segy
    2.06 MiB

Documentation files

  • ReflectionModelling_Manual.pdf
    316.93 KiB

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Zappalá, S., Westgate, M., & Malehmir, A. (2026). Automated Three‐Dimensional Reflection Traveltime Modelling to Extract 3D Dipping Layer Geometries. Geophysical Prospecting, 74(4). https://doi.org/10.1111/1365-2478.70165Opens in a new tab

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