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Spline interpolation tool creating large, unwanted holes

Question asked by on Sep 26, 2016
Latest reply on Sep 27, 2016 by

Hello All,


I am creating a groundwater surface from points using various ArcGIS interpolation routines. All of the routines return decent surfaces except the spline with out barriers tool. This tool seems to be creating large, unexpected "mounds" in the surface that I can not account for. As this exercise is for a MS thesis I need to offer some explanation. Can anyone offer an explanation on this?