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Old December 19th 09, 08:00 PM posted to uk.sci.weather
Will Hand Will Hand is offline
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First recorded activity by Weather-Banter: Nov 2004
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Default Any comments about new resolution GFS?


"Jon O'Rourke" wrote in message
...
"Will Hand" wrote in message
...
Since the high res. went operational on 15th I have noticed a tendency to
deepen lows all over the place compared to ECM/UK/JMA. Has anyone else
noticed this? Jon? It is important as such behaviour can cuase big
differences in forecast evolution. E.g. compare T+72s on
http://www.weatheronline.co.uk/cgi-b...=-&WMO=&ZOOM=0

Will


Has the model resolution actually changed with this new formulation, Will
?
I ask as Martin's post about it at 1743Z on the 17th didn't appear to
mention any change in resolution.


Perhaps I was mistaken about a resolution change Jon? Anwhow changes were
made to the model on the 15th and since then it has looked a bit "weird" IMO
cf JMA/UKMO/ECM.

When Martin first mentioned the parallel suite's availability on Meteociel
some weeks ago I was comparing both outputs as often as I could and I did
wonder if it was more stable from run to run but that's a highly
subjective assessment. I wasn't particularly aware of it overcooking
things.


I agree about the stability, almost too stable at times. Did you compare the
charts I suggested from DT12Z today?

Incidentally, EC's planned resolution upgrade is now scheduled for the
26th January.


Ah! Thanks Jon.

Will
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