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Windows C++, TCL: Originally a petroleum geology program, reads all common geology and geophysics data formats ParaViewGeo [22] Geoscience extension of ParaView Includes readers and filters Kitware ParaView, Objectivity Originally MIRARCO: BSD: Cross-platform: C++, Python
Induced polarization (IP) is a geophysical imaging technique used to identify the electrical chargeability of subsurface materials, such as ore. [1] [2]The polarization effect was originally discovered by Conrad Schlumberger when measuring the resistivity of rock.
Geomathematics (also: mathematical geosciences, mathematical geology, mathematical geophysics) is the application of mathematical methods to solve problems in geosciences, including geology and geophysics, and particularly geodynamics and seismology.
A Fraser filter, named after Douglas Fraser, is typically used in geophysics when displaying VLF data. It is effectively the first derivative of the data. If f ( i ) = f i {\displaystyle f(i)=f_{i}} represents the collected data then a v e r a g e 12 = f 1 + f 2 2 {\displaystyle average_{12}={\frac {f_{1}+f_{2}}{2}}} is the average of two values.
Magnetotelluric station. Magnetotellurics (MT) is an electromagnetic geophysical method for inferring the earth's subsurface electrical conductivity from measurements of natural geomagnetic and geoelectric field variation at the Earth's surface.
This approach is applied for filtering space-time signals. [12] It is designed to isolate signals travelling in a particular direction. One of the simplest filters is weighted delay and sum beamformer. The output is the average of the linear combination of delayed signals.
Near-surface geophysics is the use of geophysical methods to investigate small-scale features in the shallow (tens of meters) subsurface. It is closely related to applied geophysics or exploration geophysics. Methods used include seismic refraction and reflection, gravity, magnetic, electric, and electromagnetic methods.
Transient electromagnetics, (also time-domain electromagnetics / TDEM), is a geophysical exploration technique in which electric and magnetic fields are induced by transient pulses of electric current and the subsequent decay response measured.