Geoelectrical Model Calculations on Investigation of Subsurface Nuclear Explosion

The Comprehensive Nuclear-Test-Ban Treaty (CTBT) is an international treaty outlawing nuclear explosions in aH environments.If CTBTO data indicates that a nuclear explosion might have taken place, an on-site inspection can be dispatched to the suspected area. The group of inspectors will search the ground for more concrete evidence of a recent nuclear test. At this stage application of geophysical survey methods are focused. Subsurface nuclear activities cause such irreversible changes in the geological structure and rock properties that make the surface geoelectric methods suitable for inspection. Geoelectric models of the undisturbed and after explosion earth have been created for the purpose of investigating the possibilities of applying resistivity methods. Forward and inverse model calculations were carried out to find the most appropriate array parameters of the geoelectric survey.