Watershed Delineation Tool

Aug 17, 2015 at 7:13 PM
Could anybody let me know details/limitation of the hydrodesktop watershed delineation tool.
For example:
  1. What algorithm is used for watershed delineation
  2. What is the DEM resolution used for flow direction
  3. Maximum upstream area that used for watershed delineation.
  4. Any other specific limitations of the watershed delineation tool.
    Thanks!
Coordinator
Aug 21, 2015 at 8:33 PM
Hi Nazmus,

The EPA watershed delineation tool in HydroDesktop uses the EPA WATERS web services. You can learn all about it here:


I've also implemented the same services here: http://appsdev.hydroshare.org/apps/

There is a lot of good info on the EPA site about these services and how they work...

- Dan



  1. What algorithm is used for watershed delineation
  2. What is the DEM resolution used for flow direction
  3. Maximum upstream area that used for watershed delineation.
  4. Any other specific limitations of the watershed delineation tool.
    Thanks!

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