I am working on a series of footpath routes and have been asked if it possible to calculate the total ascent that a walker would have climbed if the travelled along each route? I know that it is simply not a case of max-min because the footpath is not just one single climb but has many stages where the path ascends and descends.
Presently, I have the data as a series of polylines and an underlying dtm in ArcGIS but do not have a spatial analyst extension. If anybody has any suggestions that would be great because I am quite stuck on this and never like to be beaten! I have GRASS GIS and QGIS too so quite happy to consider external methods if this will help answer the question.