[LINK] Windy Weather

[Jim Birch]

Great interface.

Windy defaults to the ECMWF model.  This is a cooperative European effort.
Model has a 9km grid which is better than most operational models.  It also
uses an ensemble forecast technique.  Input data to the models is always
imperfect and small errors amplify over time.  Better data, finer grids,
and smarter computation techniques have improved things but at some point
like like 10 days out you have a prediction but it may have regressed to
random.  In the ECMWF model they mush the input data sets randomly then run
(from memory) a couple of hundred parallel prediction computations.  Some
smart technique is then used to choose the "median" prediction as the most
likely which which gives a better medium range forecast.

Jim

On 6 February 2018 at 19:29, Paul Bolger <pbolger at gmail.com> wrote:

> The altitude slider is cute - gives you a better appreciation of what
> pilots have to deal with.
>
> On 6 February 2018 at 19:33, Andy Farkas <andyf at andyit.com.au> wrote:
>
> >
> > Was shown a new weather map today:
> >
> >  http://windy.com/
> >
> > Has all sorts of weather information in real-time. Very similar to
> > earth.nullschool.net - I'd even go so far as to say it's the same
> > code-base.
> >
> > -andyf
> >
> > _______________________________________________
> > Link mailing list
> > Link at mailman.anu.edu.au
> > http://mailman.anu.edu.au/mailman/listinfo/link
> >
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