Contour Extrapolation

Discussion created by Robin.Lee on Jul 1, 2013
Latest reply on Jul 1, 2013 by slynch-esristaff
Hi guys,

A bit stuck on some work of mine and was wondering if anyone had a solution. Basically I want to perform a step by step extrapolation of elevation contours from a hill down to the subsurface, particularly preserving the valleys and general shape. I've attached a picture which can hopefully help illustrate what I mean. The purple line is at 25m elevation, blue line is 50m and green line is 75m. Basically I want to use these contours to predict where the 0m, -25m, -50m etc. contours would be. The only form of "programming" I can use is Matlab so I may be somewhat limited in processing outside of ArcGIS. Any help would be much appreciated!