[wxqc] findu.com barometric pressure display issue

[Philip Gladstone]

There was a note on http://www.wxqa.com/news.html last week which said 
that autoscaling had been added to the pressure graphs on findu, and to 
report if it didn't work. I guess this is a case where it doesn't work!

As a side note, there is now an RSS feed from the above news page that 
you can plug into your favorite RSS reader (if you are that way inclined).

Philip

Thomas Hybiske wrote:
> Has anyone checked their wx page recently on findu.com?  I hope I can 
> explain this correctly because I don't know much about the system: 
>  
> The problem pertains to the display of the barometric pressure.  Looking 
> at the displayed graph, it would appear there are gross swings in 
> pressure. In my case, my station shows a 5 millibar change in a matter 
> of hours; something that did not happen in the dog days of summer here 
> in New England.  I first suspected a device problem at my station, but 
> my Weatherlink display showed a nearly smooth pressure line as 
> expected.  Then I looked at other stations and observed gross swings in 
> pressure at their stations as well.  So I then went back and looked at 
> my "quality control graph" for my station and I think I've discovered 
> the problem.  It appears that the graph line has been "magnified" and 
> layed down onto an incorrect graph range.  In other words the graph line 
> represents minute changes in pressure, but is being tracked on a grid 
> for a much wider range of pressure.  Maybe a tenth of a millibar is 
> being traced as one millibar. I noticed this began sometime late last 
> week.  Can someone confirm this for me?  Here's my station address for 
> reference:  http://www.findu.com/cgi-bin/wxpage.cgi?call=K3gm&last=120 
> <http://www.findu.com/cgi-bin/wxpage.cgi?call=K3gm&last=120>
>  
> Thanks,
> Tom Hybiske, K3GM
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