topic Lookup Table of Flow Direction Method in ArcGIS Spatial Analyst Questions

Lookup Table of Flow Direction Method

hoho — Thu, 27 Jun 2013 08:36:48 GMT

Dear All:

i am recently try to use the Flow Direction funcation to create a Direction GRID,
in my DEM, there are many flat area, i try to understand the Flow in those area,
but in the arcgis help point out that

"???If a cell has the same change in z-value in multiple directions and is not part of a sink, the flow direction is assigned with a lookup table defining the most likely direction. See Greenlee (1987)."

i have downloaded those paper, and unlucky, i don't understand on it,
does anyone can help me to find out those LOOKUP Table or related information,

Thank you very much for all your help

Regards
WK..

Re: Lookup Table of Flow Direction Method

MarkBoucher — Thu, 27 Jun 2013 13:55:34 GMT

I don't know about it, but recently someone posted about a tool called Fill Sinks Plus that might help. Here is website for the tool.

http://www.lago-consulting.com/fill_sinks_plus.html

Works in 10.1 it says. I have 10.0 so can't test it.

Re: Lookup Table of Flow Direction Method

hoho — Thu, 27 Jun 2013 14:32:52 GMT

Thanks,
the paper that i see is "Raster and Vector Processing for Scanned Linework",
those anyone see that before???
i hope that anyone can give me some idea about that,
thanks all

Regards
WK