Current and potential curves in a VES survey


Match between observed (black) and calculated (red) apparent resistivities to derive a 1D resistivity model (blue)


electric methods


Vertical Electrical Sounding (VES) is probably the original electrical method from which all other methods derive. VES is a DC electrical resistivity method usually conducted using one a Schlumberger or Wenner array. These are generally four-electrode arrays with progressively larger spacings between the current and/or potential electrodes. Shorter electrode spacings measure the resistivity distribution in the shallow subsurface, while the longer spacings measure deeper into the subsurface. By taking measurements with an increasing distance between current electrodes, a 1D measurement (sounding) of the resistivity as a function of depth is generated through a modeling process.

Privacy Preferences
When you visit our website, it may store information through your browser from specific services, usually in form of cookies. Here you can change your privacy preferences. Please note that blocking some types of cookies may impact your experience on our website and the services we offer.