New answers tagged

1

Well I had that problem with Hec-geoHMS while trying to create the basin model file. To fix this I implemented the steps mentioned above and I did not change the output destinations of any files on any operation starting from (Preprocessing) so by default it stored them in a folder called (Layers). The error didn't happen again due to me "going with the ...


2

Maybe this will help you: Flood Hazard Analysis: https://www.youtube.com/watch?v=775YPgO5LLE How to model Coastal flooding in ArcGIS: https://www.youtube.com/watch?v=KYpsSL4R6x0 Floodplain Analysis with ArcGIS Model Builder (ppt): ...


3

Depends on the machine specs and dataset size and number of points. One way to speed things up is to set the environment processing extent of the snap pour point tool. So if you are snapping a few points in a sub-catchment onto a flow accumulation for the whole of America then may be thats why... Try setting the extent to the extent of your study region. ...


2

The "correct" DEM for the elevations is the initial one only. The Burn process modifies the DEM so that the resulting flow direction matches observed flows. You should still use the original dem to obtain the elevations. Now you may want to look at the Create Drainage Line Structures function. It will create a stream flow direction that will be later merged ...


3

The comment by user Nir led me to the "Nibble" tool (Spatial Analyst Tools - Generalization). I had to do some preparations before I could use it and also some postprocessing. This is the model which works for me: This is the resulting DEM without the obstacle: And this are the watersheds and flow accumulations:



Top 50 recent answers are included