[wxqc] How to correct Baro reading to get MADIS thumbs up?

[Stu Phillips]

After several weeks of watching my quality stats at:

 

http://weather.gladstonefamily.net/site/AS325

 

I'm trying to figure out the correction for the barometer.  MADIS shows
me an average of 0.5 mb high but when I look at the graphs, the daytime
readings all seem spot on and generally agree with the METAR reports
from my nearest airport (KPAO).  I tweaked the correction on my
Barometer down 0.01" Hg about a week ago but it seems to have made
little (no) difference.

 

As the automated analyzer surmized, this location is indeed in a valley
(Canada de Raymundo) and it does get noticeably colder here - taking the
temperature measurements a mile away often shows 5-7 degrees difference
year round.

 

Can anyone offer some suggestions for me?

Thanks!

Stu

 

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