pyckster 26.4.2

A PyQt5-based GUI for the processing and analysis of active near-surface seismic data

PyCKSTER is an open-source PyQt5-based GUI for processing and analysis of active near-surface seismic data, with a focus on traveltime picking and surface wave dispersion analysis.

Core Features:

• File I/O: Read and write seismic files in SEG2, SEGY, and Seismic Unix (SU) formats
• Data Editing: Edit headers information (source and trace coordinates, topography integration, delay, ffid) and traces (move, swap, mute, delete)
• Traveltime Analysis: Interactive picking with multiple visualization options (source/geophone diagrams, hodochrones) and direct inversion using pyGIMLi
• Surface Wave Analysis: Compute dispersion images using phase-shift transform, simple windowing with interactive picking capabilities, and import/export dispersion curves with SWIP MATLAB package compatibility.

Coming Soon: Advanced dispersion windowing and stacking, surface wave dispersion inversion

Picked traveltimes are saved in pyGIMLi's unified format for seamless subsurface velocity model reconstruction.

Installation

PyCKSTER has now a built-in inversion module based on pyGIMLi. So far it seems to work better if pyGIMLi is installed first:

conda create -n pyckster -c gimli -c conda-forge "pygimli>=1.5.0" "suitesparse=5"

Then you can simply download the package from PyPi:

pip install pyckster

To update PyCKSTER, run the following command:

pip install pyckster --upgrade

Troubleshooting

If numpy > 2 is installed in your environment, you might not be able to run pygimli. If so you can downgrade numpy with the following command :

pip install numpy==1.26.4 --upgrade

Running PyCKSTER

Open a terminal and run:

pyckster

How to use PyCKSTER

Detailed GUI walkthrough

Mouse Controls

• Left click: Add a single pick at cursor position
• Left drag: Pan the plot
• Ctrl + Left drag: Draw freehand picks along multiple traces
• Middle click: Remove a single pick
• Middle drag: Pan the plot
• Ctrl + Middle drag: Select and remove multiple picks in a rectangle
• Right click: Context menu with plot options
• Right drag: Zoom along axes (horizontal or vertical)
• Ctrl + Right drag: Rectangle zoom (zoom to selected area)

Here is an example of PyCKSTER in action:

Author

PyCKSTER is currently developped by Sylvain Pasquet
[e-mail]

CNRS, Sorbonne Université
UAR 3455 OMA TERRA
UMR 7619 METIS

Any feedback or help is welcome.

Licence

PyCKSTER is distributed under the terms of the GPLv3 license. Details on the license agreement can be found here.