Download the demo version from Geometrics. Process their sample dataset (usually a river bedrock profile). You will have a professional velocity section within 30 minutes of installation. That speed, combined with scientific rigor, explains why SeisImager has remained a staple in geophysics field offices for over two decades.
is the refraction module of SeisImager. It handles first-break picking, offset calculations, and the construction of time-distance plots. Key features include:
One of SeisImager's greatest strengths is its logical progression. A typical project follows these steps: seisimager software
Pickwin is the interactive first-break picking and refraction analysis engine.
| Application | Target | SeisImager Module | Typical Outcome | | :--- | :--- | :--- | :--- | | | Depth to bedrock, rippability | Pickwin + SeisImager/2D | Color-coded velocity section indicating blasting vs. ripping zones. | | Environmental | Landfill thickness, groundwater table | Pickwin (Refraction) | Depth to competent clay or water saturation level. | | Geotechnical | Shear wave velocity (Vs30) | SWIFT | Site Class (A, B, C, D, E) per building code (e.g., IBC, Eurocode 8). | | Mining | Overburden thickness, paleochannels | SeisImager/2D Tomography | Accurate volume calculations for pre-strip. | | Archeology | Deep foundations, buried walls | High-resolution refraction | Anomaly detection below 5 meters (deeper than GPR). | Download the demo version from Geometrics
The latest versions of SeisImager include the module. WaveEq does not rely on simple ray theory (which fails at low velocities or shallow depths). Instead, it uses a full-waveform eikonal solver. This dramatically improves resolution in areas with velocity reversals (e.g., a slow layer beneath a fast layer), a common issue in glacial or alluvial environments.
This article provides an in-depth look at SeisImager software, breaking down its core modules, step-by-step workflow, practical applications, and how it compares to competing seismic processing software. That speed, combined with scientific rigor, explains why
: Specifically for downhole (borehole) data, it calculates velocity models by combining picked arrivals from various depths. General Processing Workflow
2D seismic refraction line (48 channels, 2 m spacing) plus MASW.