And this is why wee_trend ought to be interpreted carefully!
https://ve1dx.net/wee_plots/
- Paul VE1DX
On Friday, October 7, 2022 at 2:08:02 PM UTC-3 WindnFog wrote:
> To paraphrase Tom, I wrote a program called wee_trend during the summer of
> 2022 to learn a bit about Python/git/GitHub, and because it was hot and
> muggy in Nova Scotia. It produces 120 .png plots of weather trend data from
> our weewx generated NOAA files. It is available here, and the
> installation/usage information you need is in the README.md file:
>
> https://github.com/ve1dx/wee_trend
>
> There are a few items I want to mention.
>
> (1) This program is not part of the core weewx project and is not a
> supported weeex utility. I'll try to fix any errors or omissions as best I
> can, but Tom et al. are not involved with wee_trend. I try to monitor this
> group regularly. You can also submit errors or suggestions as an issue on
> the above GitHub repository.
>
> (2) It will only run on systems having Python 3.5 or later.
>
> (3) Most problems encountered are quality control, of which only the user
> is aware. wee_trend plots are "interesting," but few to no weewx users have
> 20+ years of NOAA data. Also, as amateur weather observers, we typically do
> not maintain strict, consistent industry standards with our hardware and
> software. We upgrade or change weather stations, move their locations
> occasionally, etc. For example, my weather station was lowered from the
> meteorological standard of 10 meters to 8.5 meters above ground in 2019.
> This created a bias toward lower wind speeds. wee_trend can't know this. It
> also can't know if a bird built a nest in your rain gauge for several
> months. These things may make the plots appear to show trends that are not
> statistically significant.
>
> - Paul VE1DX
>
>
>
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