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Using the same point shapefile to construct a Terrain and a TIN gives slightly different maps

Question asked by jazieg on Jun 9, 2020
Latest reply on Jul 21, 2020 by kduri-esristaff

Building a Terrain and a TIN out of the same point shapefile produces two maps that look extremely similar, but when I run the results through the Surface Volume the Terrain and TIN give slightly different volume results. The volume of the Terrain also changes depending on whether Z Tolerance or Window Size is used as a pyramiding method even though the Surface Volume tool is analyzing the full resolution Terrain data. Is there a specific set of parameters that will produce a Terrain that gives identical volume results to a TIN or are the two methods inherently different in some way?