[wxqc] Discussion of weather data quality issues

[Evan Bookbinder]

You'd have to ask Phillip on this one. Apparently the decoder bombs on 
the 00, 06 and 12Z observations on the 23rd. However looking at the raw 
METARs, there's nothing wrong with them.

METAR PGUM 230554Z 10007KT 10SM FEW018 SCT040 SCT120 27/25 A2981
METAR PGUM 231154Z 08003KT 10SM FEW015 26/24 A2989

Given the times of occurrence, I'm wondering if a synoptic observation 
from an alternate source is entering his system and being mis-decoded. 
Again, the actual observations from the site are fine...
http://www.uswx.com/us/stn/?code=c&n=60&stn=PGUM

Evan


Paul E.R. Packbier - PCR Environmental Inc. wrote:
> Evan:
>
> Any idea what causes the 140 mbar "pops" every six hours at the Guam  
> NWS/NOAA weather station <http://weather.gladstonefamily.net/site/PGUM>?
>
> Paul
>
> On Sep 25, 2006, at 12:38 AM, wxqc-request at lists.gladstonefamily.net  
> wrote:
>
>   
>> Date: Fri, 22 Sep 2006 19:00:11 -0500
>> From: Evan Bookbinder <Evan.Bookbinder at noaa.gov>
>> Subject: Re: [wxqc] my rain collector vs. the birds
>> To: Discussion of weather data quality issues
>> 	<wxqc at lists.gladstonefamily.net>
>> Message-ID: <00e501c6dea3$3dabc2a0$6701a8c0 at stormalerthp>
>> Content-Type: text/plain; format=flowed; charset=iso-8859-1;
>> 	reply-type=original
>>
>> A fake cat also works. In all seriousness, birds became a HUGE  
>> problem with
>> the new NWS Ultrasonic wind sensors -- hawks in fact. The 3 pronged  
>> sensor
>> made a perfect perch for the birds, causing erroneous wind gusts  
>> (in some
>> cases near hurricane force) to be observed when the bird was active  
>> on his
>> perch.
>>
>> Several attempts to remove the birds by providing alternate landing  
>> areas
>> were unsuccessful -- they prefer the 10m perch to scout out their  
>> prey. The
>> solution that works ended up being a auto-motion sensor attached to  
>> a strobe
>> light and a blaring siren. Two days of that and the sites have not  
>> had any
>> bird problems :)
>>
>> Evan
>>     
>
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>
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>
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