bernhardp

LS-factor/ slope length

Discussion created by bernhardp on Nov 26, 2012
Hi,

for a GIS project I'm trying to get the LS-factor respectively the slope length out of a DEM.

I tried the following steps:

1. fill dem (hydrology/fill)
2. get flow direction (hydrology/flow direction)
3. get flow accumulation (hydrology/flow accumulation), but I'm not sure about the result. It looks wrong, most of the cells got the value 0.

what's the next step here, is this workflow even right ?

Input:
LIDAR DEM

Software:
ArcGIS 10.1 (Info)+ Hydrotools

Greetings,

Bernhard

Outcomes