Nowcasting ROMAGNA 22 settembre / 28 settembre

**lucawsb** · 27/09/2014, 14:19

La risoluzione gfs passa da 23km a 13km........notevole..

In più carte ogni 6 ore fino alle 240 ore e non più alle 192 ore....

**lucawsb** · 27/09/2014, 14:20

GSM v12.0.0 - released August 4th, 2014 - scheduled implementation November 2014

Upgrade from current operational T574 Eulerian (~23km) to T1534 Semi-Lagrangian (~13km)
Use high resolution daily RGT SST instead of weekly OI SST, and use daily sea ice analysis
Extend high resolution forecast from 8 days to 10 days
Use McICA radiation approximation
Reduced drag coefficient at high wind speeds
Hybrid EDMF PBL scheme and TKE dissipative heating
Retuned ice and water cloud conversion rates, background diffusion of momentum and heat
Retuned orographic gravity-wave forcing and mountain block, etc.
Change from Lagrangian to Hermite interpolation in the vertical to reduce stratospheric temperature cold bias
Restructured physics and dynamics restart fields and updated sigio library
Consistent diagnosis of snow accumulation in post and model
Compute and output frozen precipitation fraction
Divergence damping in the stratosphere to reduce noise
Added a tracer fixer for maintaining global column ozone mass
Stationary convective gravity wave drag
New blended snow analysis to reduce reliance on AFWA snow
Changes to treatment of lake ice to remove unfrozen lake in winter
Modified initialization to reduce a sharp decrease in cloud water in the first model time step
Correct a bug in the condensation calculation after the digital filter is applied
Accumulation bucket changed from 12 hour to 6 hour between day 8 and day 10
Land Surface changes
- Replace Bucket soil moisture climatology by CFS/GLDAS
- Add the vegetation dependence to the ratio of the thermal and momentum roughness
- Fixed a momentum roughness issue

Read the full release notes here for GSM v12.0.0

Also see GSI and EnKF release notes for upcoming implemention:
GSI v5.0.0
EnKF v2.0.1

**roby70** · 27/09/2014, 14:23

Buon pomeriggio...

Giornata che si apre al mattino sereno e soleggiato,temperatura gradevole.Attualmente sereno con qualche corpo nuvoloso sparso ma innocuo...

Minima + 14.9°C...

Temperatura attuale + 22.1°C...

Pressione 1025.8 hpa...

Vento da ESE 0 km/h...

Umidità 55%...