Besides high-performance computers, the Department of Earth and Environmental Sciences at California State University, Fresno has several instruments for near-surface geophysics. Any software to which we link here is freely available.

Ground Penetrating Radar

Equipment: Sensors & Software PulseEKKO Pro 50, 100 & 250 MHz

- Matlab/Octave scripts for processing and plotting (2D,3D): GPR-O
- Data processing and 2D plotting: Seismic Unix



Electrical Resistivity Tomography

Equipment: Advanced Geosciences Inc SuperSting R1, 28 electrodes

- Quality Control, Easy inversions: DC2dInvRes
- High-performance 2D and 3D inversions: BERT/GIMLi
- High-performance 3D and time lapse software: E4D

Recommended introductory reading: DOI: 10.1016/j.jappgeo.2013.02.017



Equipment: Geometrics Geode, 24 geophones

- Data processing and 2D plotting: Seismic Unix
- 2D Full waveform inversion based on SpecFEM: SeisFlows



Differential GPS

Equipment: Trimble Geo 7





Background figure

The figure in the background shows the radial component of Earth's crustal magnetic field up to spherical-harmonic degree 100 recovered from simulated radomly located noisy data points at varying satellite altitude only available over North America.

Alain Plattner
Earth and Environmental Sciences
California State University, Fresno
2576 E. San Ramon Ave. M/S ST24
Fresno, California 93740

Tel: +1 559 278 6624
Email: aplattner (at) csufresno (dot) edu