Interpolate Isolines (Projecting isolines for hidden elevations)

Discussion created by waringt on Nov 18, 2010

I remember using Workstation ArcInfo years ago to interpolate isolines for values between isolines with known values. The input feature class value could actually be of a linear feature type. I can't find a simelar tool in ArcGIS Desktop 9.3.1. Does anyone know of a tool or model that can achieve this today?

I am trying to interpolate an isoline for an elevation value below the surface of a reservoir. I need to project the elevation trend below the surface of the lake by using the values and geometries of the known isolines.

Is this possible? 

Tyler Waring