Pset_GeophysicalSurveyCommon Common properties for geophysical surveys. IfcGeoScienceObservation/GEOPHYSICALSURVEYRESULT IfcGeoScienceObservation/GEOPHYSICALSURVEYRESULT SurveyMethod Method of gephysical survey used REFLECTION_SEISMIC REFRACTION_SEISMIC SURFACEWAVE_SEISMIC PASSIVE_SEISMIC OTHER_SEISMIC ELECTRICAL ELECTROMAGNETIC RADAR GRAVITY MAGNETIC NMR REFLECTION_SEISMIC Using seismic waves reflected from the interface between formations having different physical properties to map geological structures and/or stratigraphic features. REFRACTION_SEISMIC Using the refraction of seismic waves on geology layers and rock/soil units to characterize subsurface geologic conditions. SURFACEWAVE_SEISMIC Using seismic waves that travel along (or near to) the surface to assess the surface wave velocity in the subsurface. PASSIVE_SEISMIC Using listening capabilities only, that is, no seismic energy is added by the investigator. OTHER_SEISMIC Any other type of seismic survey method. ELECTRICAL Introducing current into the ground and measuring the distribution of the resulting potential in the ground to map electrical properties in the subsurface. ELECTROMAGNETIC Detecting the electromagnetic properties of the subsurface by inducing low-frequency electromagnetic fields within the subsurface and measuring the response of earth's materials. RADAR Using radar pulses to image the subsurface. GRAVITY Measuring variations in the gravitational field of the earth to detect the density changes of subsurface bodies. MAGNETIC Measuring variations in the magnetic field of the earth which are related to changes of structures or magnetic susceptibility in the subsurface. NMR Measuring magnetic resonance signals from proton-containing fluids (e.g. water, hydrocarbons) in the earth's subsurface. SurveyInstrumentManufacturer Manufacturer of the instrument used in the geophysical survey. SurveyInstrumentModel Model/name of the instrument used in the geophysical survey. SurveyDimension Dimension of the geophysical survey.