What source of weather data Windy use?
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@jmh2002
My opinion:
Satelitte layer must be "mixed" with isobars and/or other isolines
ONLY if those isolines reffer to the time of sat. image (plus/minus 1 hour).
I agree with idefix37 that theoretically is wrong to mix forecast and observations
but practically I like to have sat. + isolines (isohypses) at 850 or 700 hPa
to predict the direction of thunderstorms movement. -
I think the best would be to clearly display on UI the validity time of the static data displayed on isolines layer (pressure, temperature, etc.).
This way I think nobody would say that it is a bug: users should easily understand this.
It is the same as when displaying a time series of observed data today AND of the data observed one year ago, on the same 2D plot; this is often used in analysis and it is really useful when the validity time of each time series is clearly labelled. -
@jmh2002
I don’t think a warning pop up would be a good idea (it is not in the Windy culture). IHMO it could be done automatically when isobars are selected together with satellite layer i.e. isobars should be displayed at about same hour as the last satellite observation as @Gkikas-LGPZ said.
I think this is possible in the same way as when you select Rain accumulation with ECMWF at 10 days and switch to ICON, the time lapse is automatically set back to 12h. -
Please review these last comments and note and discuss with the development team regarding how this can be improved, thank you :)
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You mention that NEMS is only available in Europe.
But, I'm based in Hong Kong, and METEOBLUE is shown, besides GFS and ECMWF, as models for this location.
Why?
Thank you!
Peter S -
@peteraschindler Hello, NEMS is a local weather model created by Meteoblue. Meteoblue model is only available in the detailed forecast and yes, it is global model.
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@peteraschindler
Find here additional information about the difference between NEMS and METEOBLUE. It is called Meteoblue AI by this forecast provider:
https://community.windy.com/topic/10316/metoblue-wildly-inaccurate-in-the-sw-usa/4?_=1588859394205 -
@peteraschindler
Meteoblue is a Swiss company who developped a global model called NEMS. With this model, you can get weather forecast all over the world as this a global model, as GFS for instance. -
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What is the data source for satellite? How does Windy get it from EUMETSAT?
If it is EUMETCast Satellite Europe - Ku-band than what do you get from it?
Does Windy pay EUMETSAT for it?
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@yqw Hello, the source is Eumetsat and data are displayed based on the contract.
