Hydrology Tool

Discussion created by roger7467 on Mar 31, 2014
Latest reply on Apr 2, 2014 by MBoucher21
I have 0.5m DEM generated from Lidar data and I try to do water detection on that data.
It seems the Flow direction and Flow accumulation function do not work so well on my data.
Some of the big rivers and lakes are not detected, instead small ditches and tracks are detected.
I tried to use 'Aggregate' to resample the data, the result is better at some area, but still not so satisfying.
Is there anyone know to to optimize the result in this case?