SDR results & interpretation

Hi InVest team,
am trying to run SDR model and my results (raster maps)seem not to be clear,where there lots of empty pixel value(no data) in raster map of my results
anyone can help me to solve the problem




  • PerrinePerrine Moderator, NatCap Staff
    Hi Rukundo, 

    Often, nodata pixels may be a result of a routing issue, i.e. the DEM is not "smooth" enough for the model to compute flow directions. 
    One way to fix that is to fill pits in your DEM. You can do in QGIS with the Wang&Liu Filling algorithm, but other GIS programs often have their own pit filling algorithms.

  • thanks Perrine,let me try it and see if it can work

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