NDR model

Hi, everyone,

I am working with the NDR model, so far, i'v got the output map and the watershed result shp file. I found that the output map has some nodata areas, but the result shpfile has the load and export data, i was wondering how this happened?

Attached please find the ndr_result screen pic, and i would  appreciate if anyone could help me solve the problem.

Best wishes,
Jerry
CSIRO Land & Water, Brisbane, QLD, Australia


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Comments

  • RichRich Administrator, NatCap Staff
    Hi, when the NDR model has nodata holes it's sometimes related to poor routing on the DEM underneath.  And that's usually caused by hydrological pits in the DEM.  You can confirm this by looking at the flow accumulation raster generated by the model.  If it looks like the flows break up all over the landscape, that's probably the problem and you'll need to fill the DEM using SAGA or ArcHydro.

    If none of that makes sense, I'm happy to take a look myself if you want to dropbox me your data to richsharp@stanford.edu.
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