D-Infinity Decaying Accumulation dinfdecayaccum Specialized Grid Analysis tools ParameterRaster|-ang|D-Infinity Flow Direction Grid|False ParameterRaster|-dm|Decay Multiplier Grid|False ParameterRaster|-wg|Weight Grid|True ParameterVector|-o|Outlets Shapefile|0|True ParameterBoolean|-nc|Check for edge contamination|True OutputRaster|-dsca|Upslope Dependence Grid