[wxqc] Altimeter Pressure

[Thomas Barstow]

I sure don't know why they don't add that.  Maybe if we all email 
them or call them the pressure of us calling they add it in future.
If we all stick together and put are request in as a group maybe 
someone will listen and fix/add the item.




>Can anyone comment on this?................................................
>
>--------------------------------------------------------------------
>The Davis Vantage Pro II reports using sea level pressure reduction
>algorithm (elevation AND temperature corrections). I have noticed that QC
>takes this and then corrects it again for temperature. This causes
>barometer QC for Vantage stations to fluctuate significantly, especially
>after cold fronts. Can this be programmed in QC? Fact is that Davis Vantage
>stations do not report altimeter pressure.
>
>
>At 12:00 PM 8/19/2005, you wrote:
> >Don,
> >
> >CWOP "sea level pressures" are in fact the altimeter sea level
> >reduction, which is a function of elevation.  "Sea level pressure" as
> >defined here use the NWS sea level pressure reduction algorithm, which
> >is a function of both elevation and temperature.
> >
> >On Thu, 18 Aug 2005, Don Palmer wrote:
> >
> > > I just recently noticed that my sea level readings are listed under
> > "Altimeter" beneath the heading of "Pressure In", where they list
> > Pressure In, Sea Level Pressure and Altimeter.  What's with that?
> > >
> > > don
> > > CW2327
>
>
>
>
>------------------------------
>
>Message: 2
>Date: Fri, 02 Sep 2005 16:55:05 -0400
>From: John Webb <john at virginiamountains.com>
>Subject: [wxqc] Sea Level Pressure
>To: wxqc at lists.gladstonefamily.net
>Message-ID: <6.0.0.22.0.20050902165457.021050b8 at mail.npsis.com>
>Content-Type: text/plain; charset="us-ascii"; format=flowed
>
>Can anyone comment on this?................................................
>
>--------------------------------------------------------------------
>The Davis Vantage Pro II reports using sea level pressure reduction
>algorithm (elevation AND temperature corrections). I have noticed that QC
>takes this and then corrects it again for temperature. This causes
>barometer QC for Vantage stations to fluctuate significantly, especially
>after cold fronts. Can this be programmed in QC? Fact is that Davis Vantage
>stations do not report altimeter pressure.
>
>
>At 12:00 PM 8/19/2005, you wrote:
> >Don,
> >
> >CWOP "sea level pressures" are in fact the altimeter sea level
> >reduction, which is a function of elevation.  "Sea level pressure" as
> >defined here use the NWS sea level pressure reduction algorithm, which
> >is a function of both elevation and temperature.
> >
> >On Thu, 18 Aug 2005, Don Palmer wrote:
> >
> > > I just recently noticed that my sea level readings are listed under
> > "Altimeter" beneath the heading of "Pressure In", where they list
> > Pressure In, Sea Level Pressure and Altimeter.  What's with that?
> > >
> > > don
> > > CW2327
>
>
>
>------------------------------
>
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>
>End of wxqc Digest, Vol 11, Issue 3
>***********************************

Tom Barstow
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