[wxqc] Baraometer quality problems

[Gerry Creager N5JXS]

I'm actually much more fascinated by your excursions in temperature and 
dewpoint.  You're showing some wide swings, despite Dave Helms' recent 
comments on frequent data insertion into the system.

Regarding your barometric pressure: What's the siting conditions at your 
location?  Where's your barometer sensor installed?  Inside a tightly 
sealed house?  Outside in the instrument?  How'd you determine your 
elevation?  GPS?  If GPS, what datum was entered?  How did you obtain a 
value (there are real issues with simple averaging although that beats a 
single spot value)?  Topo map?  What were the horizontal and vertical 
datums on the topo map?  Using the CWOP info page for your station, does 
the location and height correspond appropriately?  You mention you've 
got the station altitude set at 171 meters but the site info page says 
161 meters.

gerry

John Yurciw wrote:
> When I get my daily "Weather data quality report",  my */Alt(mb) 
> /*readings have consistantly been on the high side, about +2.00 to +2.78 
> and even +2.99. All my other reporting data is fine. My question is, do 
> I need to check the elevation setting on my Davis Vantage Pro2? If I 
> have this set incorrectly would this be the reason that I am getting the 
> error readings from Weather Quality? I currently have it set at 171M 
>  
> Thanks in advance for the help
> John
> http://www.findu.com/cgi-bin/wxpage.cgi?call=CW4264
> 
> 
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-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843