Generating Depth Grids From High Water Marks and DEMs:

Discussion created by menglish on Oct 1, 2012
This is my first stop within the GIS community to obtain a process to generate depth grids from high water marks, which will be followed by extensive research on best avaiable practices.  I have a series of points, with elevation from gathered high water marks, and a fairly decent DEM of the area.  Is anyone aware of the processes/tools within ArcMap to follow and generate a fairly defensible product.  I understand I will have to evaluate the parameters, I just was seeking the processing steps (interpolation/raster calculator) necessary to acheive this goal.  Thank you!!!