I have a water feature layer which includes rivers, lakes and streams. I want to create, essentially, a buffer of these features equal to that of a 50cm increase in elevation from its current boundary. I have been toiling with this one for a few hours now, but can't theoretically get through the problem.
The result would be a buffer that is "aware" of the elevation in its determination of the buffer edge.
Any way I think about this, I keep coming back to a looping function addressing each point along the boundary of each water feature. This would be computationally intensive and I don't have all the theory down for that method either.
What do you think?
ArcGIS 10.1, all license levels with LiDAR DEM.
The water is, itself, a constant elevation, but as the land rises, so too does the channel. If this isn't clear, think of a mountain stream flowing to the valley.
- Have successfully made a layer from suggestions below by Michael.
The result is not ideal (used a 1m elevational increase), thus looking to see if anyone can improve upon this method.