14787Re: [wuhu_software_group] Re: Average Wind Direction & Speed
- Jul 8, 2009Actually, I would like simple averaging for wind speed (I guess it does
that now), including calm (0 mph) samples. Which setting controls this?
I would like the vector addition for wind direction (i.e. weighted by
wind speed of each sample).
> Initially, a long time ago, it was using vectors.
> Eventually, I just averaged with wind speed (no including zero wind
> speeds unless you check an option).
> I cannot recally why the vector approach was abandoned. When I find
> some time I could make it configurable.
> Would you want to use the vector approach or just simple averaging?
> --- In email@example.com
> <mailto:wuhu_software_group%40yahoogroups.com>, David Lipper
> <glenvilleweather@...> wrote:
> > I have a question regarding how Wuhu calculates average wind
> direction and
> > speed.
> > As far as I can tell, each has two ways:
> > Average direction can be based on vector addition including wind
> speed (in
> > other words weighted by windspeed) or using unit length (that is
> > by wind speed).
> > For average wind speed, it can be a simple time average; or it can be a
> > vector based average.
> > How does Wuhu calculate it? Or is it configurable?
> > I found this page (http://www.webmet.com/met_monitoring/62.html
> <http://www.webmet.com/met_monitoring/62.html>), which
> > frankly has more detail than I can get through, but its vector and unit
> > vector descriptions are what I mean, in more formal ways.
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