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  2. Geophysical survey - Wikipedia

    en.wikipedia.org/wiki/Geophysical_survey

    Geophysical survey is the systematic collection of geophysical data for spatial studies. Detection and analysis of the geophysical signals forms the core of Geophysical signal processing. The magnetic and gravitational fields emanating from the Earth's interior hold essential information concerning seismic activities and the internal structure.

  3. Aeromagnetic survey - Wikipedia

    en.wikipedia.org/wiki/Aeromagnetic_survey

    An aeromagnetic survey is a common type of geophysical survey carried out using a magnetometer aboard or towed behind an aircraft. The principle is similar to a magnetic survey carried out with a hand-held magnetometer, but allows much larger areas of the Earth's surface to be covered quickly for regional reconnaissance.

  4. List of surveying instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_surveying_instruments

    Instruments used in surveying include: Alidade; Alidade table; Cosmolabe; Dioptra; Dumpy level; Engineer's chain; Geodimeter; Graphometer; Groma (surveying) Laser scanning; Level; Level staff; Measuring tape; Plane table; Pole (surveying) Prism (surveying) (corner cube retroreflector) Prismatic compass (angle measurement) Ramsden surveying ...

  5. Ground-penetrating radar - Wikipedia

    en.wikipedia.org/wiki/Ground-penetrating_radar

    Ground-penetrating radar (GPR) is a geophysical method that uses radar pulses to image the subsurface. It is a non-intrusive method of surveying the sub-surface to investigate underground utilities such as concrete, asphalt, metals, pipes, cables or masonry. [ 1 ]

  6. Survey vessel - Wikipedia

    en.wikipedia.org/wiki/Survey_vessel

    A survey vessel is any type of ship or boat that is used for underwater surveys, usually to collect data for mapping or planning underwater construction or mineral extraction. It is a type of research vessel , and may be designed for the purpose, modified for the purpose or temporarily put into the service as a vessel of opportunity , and may ...

  7. Viridien - Wikipedia

    en.wikipedia.org/wiki/Viridien

    Minerals and mining: Viridien supports mineral exploration through global geological predictions and plate kinematic studies, satellite-derived surface material alteration targeting, provision of geophysical equipment, and the development and provision of modeling software, as well as monitoring services for mining operations and mine tailing ...

  8. Electrical resistance survey - Wikipedia

    en.wikipedia.org/wiki/Electrical_resistance_survey

    Electrical resistance surveys (also called earth resistance or resistivity survey) are one of a number of methods used in archaeological geophysics, as well as in engineering geological investigations. In this type of survey electrical resistance meters are used to detect and map subsurface archaeological features and patterning.

  9. Aerial survey - Wikipedia

    en.wikipedia.org/wiki/Aerial_survey

    Aerial survey is a method of collecting geomatics or other imagery data using airplanes, helicopters, UAVs, balloons, or other aerial methods. Typical data collected includes aerial photography , Lidar , remote sensing (using various visible and invisible bands of the electromagnetic spectrum , such as infrared , gamma , or ultraviolet ) and ...

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