[Xastir] Davis, Lacrosse weather code modified, need testers.

[Dean Groe]

OK did the update and installed.  We might get some rain later today, so we might have results by tomorrow. 

I installed the latest just over an hour ago, and I see that Xastir is still showing the Total Rain field as empty at this point. Prior to this AM, there would have been a number there by now, so we will see what we get.  


Regarding the differences in rainfall between nearby sites here, that is just the way that the weather is here in subtropical Orlando.  Each Wx station could be identical and be perfectly sited and there would still noticeable differences between nearby locations.  That is why we do not get too wrapped up in differences of hundredths or even tenths of an inch here.  Of course in other parts of the world, it is a different story.  
 

Dean  KD4TWJ 


>________________________________
>------------------------------
>
>Message: 2
>Date: Sat, 18 Aug 2012 08:16:12 -0600
>From: Tom Russo <russo at bogodyn.org>
>To: Dean Groe <warpedspeed1 at yahoo.com>,    Xastir - APRS client software
>    discussion <xastir at lists.xastir.org>
>Subject: Re: [Xastir] Davis, Lacrosse weather code modified, need
>    testers.
>Message-ID: <20120818141612.GA14022 at bogodyn.org>
>Content-Type: text/plain; charset=us-ascii
>
>On Sat, Aug 18, 2012 at 05:57:51AM -0700, we recorded a bogon-computron collision of the <warpedspeed1 at yahoo.com> flavor, containing:
>> Sorry, I know that I had volunteered to help, but I have been kind of completely swamped. 
>> 
>> So if I understand the problem correctly, we are trying to address the discrepancies in the four rain categories collected by Xastir.? 
>
>Well, really the problem is that Xastir, until this change, was gathering
>only ONE rain number from the Davis stations, using that number as if it were
>"total rain since station was reset" and then using that number to compute
>the 24-hour rain, rain-since-midnight, and last-hour rain.  It was ignoring
>the rain-since-midnight, and last-hour rain that the station 
>was providing itself, and incorrectly using the 24-hour number from the station
>as if it were the "total rain since reset."  
>
>This leads to some incorrect behavior over time, and is silly since the
>station itself is reporting all three numbers.
>
>> Here it is not unusual for two spots a mile a way from each other, or even less, to have differences in rain totals between .5 and an inch, so I guess that we do not split hairs over a few hundredths with our own numbers.? 
>
>This change will have no impact on that sort of thing.  These could all be due 
>to differences in siting and installation of rain gauges.
>
>> I have also noticed that my Davis Vantage Pro does not do a good job of keeping time.? In fact right now, it is almost an hour off and I need to adjust it again.? Maybe that is part of the discrepancy problem? 
>
>Nope.  Xastir does nothing with the time from the weather station.
>
>