IDW interpolation

Discussion created by vitocoppola on Jan 14, 2011
I´m doing an interpolation of litostratigraphic surfaces based on borehole data. The distribution of data is not homogeneous in the area. I'm trying to use IDW interpolation method, but there are some problem in the surface reconstruction. The real problem is the intersection of surfaces in many areas (I can see this in ArcScene), especially where there are few data, and moreover with this method I will have continuous surfaces. The idea to solve this problem is to limit the interpolation process to the area with enough data and to have NoData in the rest of area. In this way the surfaces will be not continuous but this probably could be ok.
Can anyone offer some advice here?