Methods of investigation

Multi-electrode geoelectric method:
1. 2D and Electrical Resistivity Tomography;
2. Electrical Vertical Soundings (SEV);
3. I.P. survey in 2D sections;
4. Cross-hole tomography.
Seismic methods:
1. refraction;
2. seismic surface waves (1D MASW, profile, and 2D MASW, section);
3. SIRT method (cross-hole, side-to-side scan of structures like dams);
4. vibrational monitoring of ground and structures, HVSR measurements;
5. Bore-hole seismic probes (down-hole, cross-hole).
GPR method:
1. multiarray underground GPR scan;
2. wide range of antenna frequencies;
3. borehole GPR.
Frequency domain - electromagnetic (FDEM, up to 15000 Hz):
1. 2D EM section;
2. 3D modeling.
Magnetotellurics and Audiomagnetotellurics method (MT and AMT):
1. 1D MT sounding;
2. combined 2D Electrical Resistivity Tomography and 2D AMT section.