A look at glacier and stream profiles with Yannn Merrand
Yann, I have done a profile as shown in red above. If you prefer, I can do one that more resembles the blue line sketche through the center of the glacier. These are the natural flow lines as I trace upstream. I can also pick any point on the glacier and trace down from it.

Below are some of the 245 hypsometrics curves genererated at 500-meter intervals. You can download the whole set. It unzips into a directory named hypsos The columns are 1) elevation, 2) number of 10-meter cells, 3) cummulative cell count, 4) normalized cummulative area. The file idxyz is a list of the pour points of the sub-basins.