Resist Overview

Resist is software to derive and/or invert apparent resistivities seen in Wenner or Schlumberger surveys with a one-dimensional resistivity earth structure. Resist can also generate the apparent conductivity measured with an EM-31.

Resist uses two different windows: the Model Window and the Plot Window. Some aspects of Resist are set in the Preferences Window.

A typical use of Resist is to invert apparent resistivities. This is accomplished by first estimating the number of layers needed and setting that in the Model Window. The survey geometry is chosen here, and data values can be entered. The Plot Window will show the apparent resistivities of the model and data as a function of electrode spacing. The model should be adjusted by hand to be somewhat close to the observations. Once this is done, the data can be inverted for a better-fitting model from the Model Window. Model parameters can be held fixed for the inversion.