[Met_help] threshold values

[Shaw, Michael J CTR USAF AFWA 16 WS/WXE]

Hi.

When I include a forecast thresh of 0 and fcst thresh of 20, masked over a region (EAST poly), I get the same average of precip (accumulated over a week or so) of about 13.5.  As in identical FBAR.  I'm obviously missing something - I wouldn't think a mean of 13.5 would be possible if I'm using only values >20.

What am I missing?

Thanks,
Mike

______________________________________________

Michael Shaw, Contractor
SAIC/NASA Support Scientist
michael.shaw.ctr at offutt.af.mil
16WS Environmental Characterization
HQ AFWA-SAIC
101 Nelson Drive
Offutt AFB, NE 68113-1023
402-232-7690 Comm * 402-272-7690 DSN * 402-294-8230 Fax

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