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measure grain size of debris flows

Question asked by juliajiang on Aug 25, 2014
Latest reply on Aug 25, 2014 by juliajiang

I have a DEM data which describes surface of debris flows after failure of landslide dam.

now i want to measure the grain size of debris flow, and find out the rule of grain size distribution.

For measure the Grain size of debris flow, I applied Spatial analysis->Curvature to calculate the grain size, is that correct?

the result is a tiff file and have no attribution for each grain. any suggestion?

Thank you.