Arbitrarily assignments for D8 algorithm

Discussion created by plew on Mar 16, 2014
Latest reply on Mar 17, 2014 by MBoucher21
I am working on my master thesis in Geography were i do some spatial hydrological modeling.

I use the hydology tools in the spatial analyst extension and have a question about the D8 algorithm. Hope someone can give me an answer or a hint?

How does the hydrology tools solve the problem with ambiguous flow directions? Does it have any arbitrary assignments? I know that other packages have it, but can not find information about how it is resolved in the Arc tool set.

Per Wirehn
NTNU - Trondheim, Norway.