[wxqc] [C28738] Chasing Barometer Calculation

[Brent Dowell]

Hi Philip,

Thanks for the reply, and the tip to check against KRNO.

>From the graphs, it just looked to me like it had been consistently high since Feb.

With the WMR968, the pressure sensor is located inside, so maybe that's it. 

Heck, I never even look at the inside readings, so maybe I should put everything back to normal and stick the pressure sensor outside.

I think I'll just reset the offset I've been using, and put the pressure sensor outside and see what happens for a few days.

Thanks again!

Brent




----- Original Message ----
From: Philip Gladstone <philip at gladstonefamily.net>
To: Discussion of weather data quality issues <wxqc at lists.gladstonefamily.net>
Sent: Tuesday, April 1, 2008 6:31:26 PM
Subject: Re: [wxqc] [C28738] Chasing Barometer Calculation

Brent

If you compare your readings with KRNO -- the nearest 'reliable' source, 
then it is a long way away from your readings, so I don't think that the 
'new station in your area' is the answer.

If you look at http://weather.gladstonefamily.net/site/C8738?days=182 
then you can see that your pressure tracked nicely until early feb, when 
it started to diverge significantly. I have no idea what happened at 
that point. Maybe device failure. Maybe a temperature change where the 
pressure sensor is located, and it is more sensitive than it ought to be.

Philip

Brent Dowell wrote:
> So,  My Barometer calcs had been tracking fine for quite a while.  I 
> hadn't even checked them for a while.  A couple of days ago I checked 
> and the QC Check was giving me two thumbs down and indicating that I was 
> consistently high...  Very consistently.
> 
> Weird, I thought.  But ok, for whatever reason, something happened.  
> Maybe my sensor, maybe a new station cropped up nearby.
> 
> So the last few days I've been trying to tweak my settings to get back 
> on track.
> 
> I'm just wondering if it's worth it.  Should I just put it back to where 
> it was? 
> 
> Should I keep trying to chase the analysis?
> 
> Thanks in advance for your advice.
> 
> 






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