accumulation maps

Dan Riker riker at
Fri Apr 9 22:05:45 EDT 1993

Hello all, how are things?
I was wondering if anyone has formed an accumulation map, but have gotten 1/3 of
the data as negatives, 1/3 as positives, and 1/3 as no data.  I have checked and all three occur close together throughout the whole watershed.  Its very 
strange and also very depressing.  CAn anyone offer any help on this?
Dan Riker
Duke University

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