I ran the SDR module. In the output result, there was no data in the reservoir and some river areas. I checked the intermediate_outputs, and there also was no data in the “e_prime.tif” and “f.tif”. In the first run, the threshold flow accumulation value is set to 1000, and then I set the value to 10…

Hi @littlelitchi , and welcome to the forum! Which model result(s) shows NoData in the reservoir and river areas? The SDR model always gives values of NoData in sed_export.tif where streams are defined, since the model does not include in-stream processes. You can check this by comparing your NoDat…

Hi @swolny , thank you for your reply! I checked the input data and found that the “Soil Erodibility” data is missing data in the same area. I have filled them and the results are normal now. Thanks for your help!

Hi [littlelitchi], Stream formation may depend on the relationship between TFA and the size of pixels in your MDE layer. I’m using a high definition MDE, 0.3m and my TFA for the streams to look like the real thing is like 10000. Maybe if your MDE doesn’t have a high resolution you should use lower …

Hi @brunogeraldimartins , thank you for your reply! My DEM data is 30m×30m. Finally, I set the TAF value to 1000, and the results run well.

SDR result ：reservoir and river areas is “NoData”

Software Support

swolny June 15, 2022, 6:39pm 4

Great @littlelitchi, thanks for letting us know!

~ Stacie

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SDR result ：reservoir and river areas is “NoData”

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