[wxqc] Something horrible happened (again) at 0735 UTC today

[Mike Barth]

All,

I examined the raw data file and found the problem that's triggering the
bug in our processing that's causing the spikes.  I will have a fix for
this by the end of the week, and will send out an email when that's been
implemented.

Thanks,

Mike

On Mon, 9 Jan 2006, rr3weather administrator wrote:

>
> I have been trying to analyze data in the LDAD/mesonet/netCDF files from
> the madis-fsl.org FTP server.  It appears to me that there may be one or
> more problems.  I have observed that many (not all) of the problems are
> happening between 07:00:00 and 09:00:00 UTC.
>
> I have my data from CW3077 sent to APRS at 5 minute intervals, exactly
> 16 seconds after each 5 minute tic of the clock.  I have been using
> socal.aprs2.net:23 as my primary and arizona.aprs2.net:23 followed by
> others as backup servers.
>
> I have observed one case where my temperature was wrong.  The netCDF file
> has a variable "rawMessage" showing the data received from APRS.  The
> temperature posted in the netCDF for my station was not the same as the
> temperature in "rawMessage" data.
>
> I have also observed some cases the observed time is more than 15min earlier
> than the time received by FSL making the samples out of order.  It appears
> to me that the source supplying these data may be at fault.
>
> What is the selection algorithm for determining what sample is sent to FSL?
> It appears that FSL ingests my data at about 6, 21, 36 and 51 minutes after
> each hour although there does seem to be some considerable variation.  I am
> going to try an experiment by sending my data to APRS at 15 minute intervals
> instead of 5 minute intervals.
>
> Bob Jewett
> CW3077
>
> Charles Owen wrote:
>> I was the same thing in my QC report.
>>
>> Could it be the ingest and graphing systems may be overwhelmed? Alas, it is
>> not a perfect world.
>>
>> Charles
>> 
>> PS I am seeing some unexplained drops of data on several sites (and my own)
>> as referenced on the page:
>> 
>> http://www.findu.com/cgi-bin/wxpage.cgi?call=CW4870&last=12
>> 
>> This morning (approx 2AM EST 1/9) in the raw data display...
>> 
>> CW4870>APRS,TCPXX*,qAX,CW4870:@090710z3530.20N/08422.91W_206/009g010t057r000
>> p000h68b10190.WUHU142HW
>> <gap>
>> CW4870>APRS,TCPXX*,qAX,CW4870:@090730z3530.20N/08422.91W_204/010g015t056r000
>> p000h70b10193.WUHU142HW
>> <gap>
>> CW4870>APRS,TCPXX*,qAX,CW4870:@090740z3530.20N/08422.91W_199/007g013t056r000
>> p000h71b10193.WUHU142HW
>> 
>> 
>> 
>> 
>> _______________________________________________
>> wxqc mailing list
>> wxqc at lists.gladstonefamily.net
>> http://pond1.gladstonefamily.net:8080/mailman/listinfo/wxqc
>> 
>> The contents of this message are the responsibility of the author.
>> 
>
>
> -- 
> /-------------------------------------------------------------
> / rr3weather administrator      E-Mail: rr3weather at verizon.net
> / Georgetown, TX
> / OS/2 User!
> /-------------------------------------------------------------
> _______________________________________________
> wxqc mailing list
> wxqc at lists.gladstonefamily.net
> http://pond1.gladstonefamily.net:8080/mailman/listinfo/wxqc
>
> The contents of this message are the responsibility of the author.
>