from geoscilabs.dcip.DCWidgetResLayer2D import ResLayer_app
from matplotlib import rcParams rcParams['font.size'] = 16
In some situations the presence of a near surface layer can have large implications for the detectability of targets beneath the layer. If the near surface layer is very conductive current channelling occrurs and when the layer is very resistive it has a shielding effect. In both cases the near surface layer dramatically reduces the strength of currents beneath the layer and therefore also reduces the strength of charge build up on the surface of the target.