Il "nuovo" GFS

**baccaromichele** · 28/10/2014, 22:01

Ecco qui, finalmente...

GSM v12.0.0 - implementation scheduled for December 9th, 2014 (subject to change)

View implementation review from 10/2/14 CCB meeting

Please note: GSM (Global Spectral Model) refers to the forecast component of the larger GFS (Global Forecast System). As the GFS/GSM begins its transition to NEMS/GSM, the terminology will shift as well. See Q1FY16 upgrade for more details on transition of GFS to NEMS.

T1534 Semi-Lagrangian (13km)
More accurate spectral-grid transforms
Reduced grid consistency when creating orographic fields
Use of high resolution daily SST analysis
Use of high resolution sea ice
Physics

Cloud estimate modifications
EDMF parameterization
Dissipation heating paramterization
Convective gravity wave drag
McICA
Modify how GFS diagnoses snow accumulation to be consistent with post
Land Surface - Removal of soil moisture nudging

Unification of analysis ensemble with GEFS ensemble
Ensemble resolution increase to T574L64
Analysis upgrades - See global GSI implementation roadmap
Post Processor

Faster/less memory version
Updated version to use new crtm 2.1.3
add user requested fields

H/T/U/V at FL410,
ozone at 150, 200, 250, 300, 350, and 400 mb,
2m dew point,
wind chill and heat index,
instantaneous precipitation type
membrane SLP in GDAS pgb files

Improved in flight icing algorithm in post
Consolidation of GFS master file creation with GFS DNG, similation of GOES radiances and WAFS

Fonte: National Centers for Environmental Prediction

Su meteociel è comparso il run parallelo
Meteociel - Cartes du modèle numérique GFS pour l'Europe

**Fabri93** · 28/10/2014, 22:28

E' quello che ci voleva,grande notizia

Fabri93

**Gangi** · 28/10/2014, 23:43

GFS diventerà GSM?

**Calistream** · 29/10/2014, 14:23

Ottima notizia, in un'altra discussione ho letto che anche il meteo-office si sta attrezzando, anche se in quel caso si tratterà di utilizzare un nuovo super-computer, al fine di migliorare le prestazioni.