NOAA is about to make some big changes to its global weather model
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If so the practical differences in resolution and forecasting detail makes that sort of claim/comparison rather questionable, IMO.
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As I said, interesting.
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@TomSlavkovsky
Have you switched to the new GFS FV3 or is it still the old version which is used on Windy? -
@idefix37 yes, we are now using GFS FV3
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@TomSlavkovsky
Thank you! It’s great to know! -
So what is the grid resolution? Windy still says GFS @ 22km but isn’t FV3 @ 13km?
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@TomSlavkovsky said in NOAA is about to make some big changes to its global weather model:
@idefix37 yes, we are now using GFS FV3
You should clarify that in the text on the windy page if you click at clock symbol
Greetings from Tomber
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@Tomber42
As I see the wind (or temperature) field over rough terrain (mountains)
I believe that GFS is (still) at 22km resolution. -
@Gkikas-LGPZ
@dootsonfire
@Tomber42
I have got some information from weather specialists and they confirm that:- the old GFS v 14 had already a native resolution of 13km same as the new GFS FV3 v 15. This is the computational resolution.
It is confirmed by NOAA :
« GFS Version 15.1 maintains a horizontal resolution of 13 km and has 64 levels in the vertical extending up to 0.2 hPa » - The old GFS was dispatched to users by GRIB files with a 0.25° resolution. And this is not changed with the new GFS FV3 v 15.
Note that 0.25° is close to 27 km, when 23 km is 0.2°
- the old GFS v 14 had already a native resolution of 13km same as the new GFS FV3 v 15. This is the computational resolution.
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@Tomber42 I would also like to see the FV3 being shown in the Clock info panel, something like (GFS - FV3) just to be more clear. :)
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Hello guys,
Here's where you can get more information about FV3-GFS new model: Significant information on the FV3-GFS https://www.emc.ncep.noaa.gov/users/meg/fv3gfs/official and select model (real-time): https://data1.gfdl.noaa.gov/fvGFS/fvGFS_products.php Or find the Pivotalweather portal. You can compare the data there too.
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@RandyBonnette said in NOAA is about to make some big changes to its global weather model:
guys,
Here's where you can get more information about FV3-GFS new model: Significant information on the FV3-GFS https://www.emc.ncep.noaa.gov/users/meg/fv3gfs/website and select model (real-time): https://data1.gfdl.noaa.gov/fvGFS/fvGFS_products.php Or find the Pivotalweather portal. You can compare the data there too.Thanks for recommendations
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This post is deleted! -
Hey Randy thanks for your reply!
