[wxqc] Software DP calculations

Sam Drinkard sam at wa4phy.net
Sat Apr 16 23:09:41 EDT 2005


    I'd like to know for sure the DP calculations being done by the 
various wx software packages is correct.  I'd think it would be, but 
perhaps somehow something gets trashed a little causing wild 
fluctuations in outputted dewpoints.  Given the fact that some flakey 
data can throw off the analysis for a "cluster" of stations, does the QC 
not have a feature or function that looks at all the peer stations and 
throw out the "offending" one?  Is it in fact working?  Maybe I am 
paranoid a bit about minor things, but if I'm going to send wx data, I 
want to know what I send is of the highest accuracy that can be had from 
a "consumer grade" wx station.  Watching the trends via Phill's graphs, 
it appears that my DP is going from bad to worse, and daily abberations 
are increasing.  (Dave/Sandy, can you peek at what I've been producing 
and tell me if I need to look for some problem, or is there some ragged 
data causing the increasing Std Dev's ?) If I recall, Dave mentioned 
something to the effect that software chnages were forthcoming in the 
WXQC to better handle flakey station data.  Any timeframe for 
implementation?

-- 
Snowman




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