Home ICGC Thematic areas Sustainable territory Subsoil Applied Geophysics Techniques Techniques Description of the geophysical methods applied, processing and analysis of the data obtained Gravimetric Characterization of the Earth's subsoil through variations in the density of materials Magnetotelluric Measurement of fluctuations in the Earth's natural electromagnetic fields Vibration measurement and control Recording of ground movement produced by anthropogenic sources Numerical methods Numerical processes involved in the processing of geophysical data Active seismic Analysis of the propagation of artificially produced seismic waves on the ground Passive seismic Seismic noise acquisition and analysis Geophysical testing of boreholes Measurement of physical parameters along a borehole Electric tomography Measurement of the electric resistivity of subsoil materials