DUFF Moisture Code (DMC)

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The DMC values shown on the map are numerical ratings of the average moisture content of a loosely compacted surface organic layers (duff). The code indicates fuel consumption of surface organic layer with low bulk density and medium-sized woody material.

Please refer to the scale in the table below for interpretation of the DMC maps:

Class-Ignition PotentialInterpretation
LowTop layers of organic soil are wet.
MediumTop layers of organic soil are moist.
HighTop layers of organic soil becoming dry.
ExtremeTop layers of organic soil are dry.
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