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ArcHydro drainage mismatch

Question asked by bonorino on Feb 7, 2018
Latest reply on Feb 8, 2018 by davebetts

Hello!

Working with ArcHydro in ArcGIS 10, the confluences of river segments (str, strlnk, drainage line) do not exactly coincide with catchment boundaries. The confluence is 1/2 pixel farther downstream from the boundary in all cases. See picture attached.

I use ASTER GDEM. 

If possible I would appreciate learning how to correct this defect.

Thank you

 

Gustavo Bonorino

Argentina

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