Research

The questions we work on, ordered from the surface downward.

• Geotechnical engineering

  We study soil and rock behavior, slope stability, and the influence of groundwater on ground conditions. Field investigations, geophysical surveys, and numerical modeling support the assessment of geotechnical conditions and risks.

• Groundwater recharge estimation

  We estimate recharge from water-table fluctuation (WTF) records and report how much each estimate can be trusted. Both recession-curve analysis and Kalman-filter methods are covered.

• Geophysical exploration

  We investigate subsurface structures and properties using electrical resistivity, seismic, electromagnetic, ground-penetrating radar (GPR), gravity, and magnetic methods. Our research integrates survey design, data processing, forward modeling, and inversion to support geological, geotechnical, groundwater, and environmental investigations.

• Uncertainty and information theory

  Using Fisher information and the Cramér–Rao bound, we establish the theoretical limits of recharge and resistivity estimates, and use that framework to decide whether more data or a different model is needed.

• Managed aquifer recharge (MAR) pre-assessment

  We are developing a site-selection and pre-assessment methodology for managed aquifer recharge and validating it against field data.

From research to tools

Tools for groundwater, seepage, electrical, GPR, seismic and gravity/magnetic investigation, and slope stability. Choose a field to find the right tool for your data.

Basin scale

M-HARE Basin

Basin-scale groundwater recharge

Combines GIS layers and monitoring data to analyze groundwater recharge across a basin. Explore the results on a map and export data as CSV.

Input

GIS & monitoring data

Result

Recharge maps & CSV

Open M-HARE Basin ↗

Time series

Hybrid-WTF

Hybrid-WTF · WRR 2021 delayed recharge

Analyze groundwater-level responses to rainfall with the Hybrid-WTF and WRR 2021 models. Explore recharge timing and export graphs and CSV data.

Input

Rainfall & groundwater levels

Result

Recharge timing & CSV

Open Hybrid-WTF ↗

2D resistivity

RESIS Pro

Electrical resistivity modeling & inversion

Import APV or RES2DINV DAT survey data for forward modeling and inversion. Compare observed and calculated responses with the inverted resistivity section.

Input

APV / RES2DINV DAT

Result

Resistivity sections

Open RESIS Pro ↗

1D inversion

VES Master

Vertical electrical sounding & 1-D inversion

Import Schlumberger sounding data, edit layered earth models, and run automatic inversion. Compare observed and calculated resistivity curves and export layer parameters.

Input

Schlumberger sounding data

Result

Resistivity & layer thickness

Open VES Master ↗

2D tomography

Refraction Pro

Seismic refraction & topographic 2-D tomography

Read SEG-2 and SEG-Y waveforms, pick and review first arrivals, and invert P-wave velocity beneath irregular terrain. Inspect ray coverage and traveltime residuals.

Input

SEG-2 / SEG-Y & first arrivals

Result

P-wave velocity & ray coverage

Open Refraction Pro ↗

2D section

STABLE

Soil slope stability & circular slip analysis

Define terrain, soil strength and surcharge. Search circular slip surfaces with Bishop and Fellenius, and compare factors of safety using time-dependent pressure grids imported from SEEP Pro.

Input

Terrain, strength & groundwater / SEEP pressure

Result

Safety factor, slip surface & time history

Open STABLE ↗

Rock slope

ROCK STABLE

2D blocks, toppling & elastic FEM

Analyze 2D sliding blocks, search critical candidates and back-calculate anchor forces. Examine rigid multi-block toppling/sliding equilibrium and linear-elastic plane-strain displacement and stress, with project and report exports.

Input

Terrain, joints & support

Result

Block FoS & elastic stress/displacement

Open ROCK STABLE ↗

1D Vs inversion

MASW Pro

Surface-wave dispersion & 1D shear-wave velocity

Import SEG-2/SEG-Y waveforms or dispersion picks. Review the Rayleigh fundamental mode, edit the layer model, invert Vs and export profiles.

Input

SEG-2 / SEG-Y or dispersion picks

Result

Vs profile & dispersion fit

Open MASW Pro ↗

Ground penetrating radar

GPR Pro

Radargram QC, horizons & depth slices

Review DT1/HD or CSV trace quality and time zero, and interpret reflector horizons. Fit diffraction velocity, run 2D migration, batch-process survey lines and map depth-slice amplitudes within supported survey areas.

Input

DT1/HD / CSV sections · line coordinates

Result

Processed profiles · horizons · depth slices

Open GPR Pro ↗

Gravity & magnetics

GRAV/MAG Pro

Polygon models, reference correction & anomaly maps

Model polygon and circular bodies and fit their properties and location. Correct temporal reference-station variation, map XY observations and extract modelling profiles to compare anomalies, residuals and subsurface sections.

Input

Observation, XY and reference-time CSV

Result

Polygon models · corrected maps · residuals

Open GRAV/MAG Pro ↗

2D steady flow

SEEP Pro

2D transient seepage & groundwater flow

Model rainfall and boundary water-level histories with saturated–unsaturated flow. Review pore pressure, infiltration, runoff and water balance over time, then transfer pressure fields to STABLE.

Input

Terrain, hydraulic properties & time histories

Result

Time-dependent pressure, flow & STABLE export

Open SEEP Pro ↗

WORKFLOW UTILITIES

Have a problem worth solving together?

For collaboration, data interpretation or software access, email us with a short description of your project.