1. SMHI operational HIRLAM EWGLAM 2004 4 - 7 October , OSLO Lars Meuller SMHI
4 forecasts every day.
HIRLAM22 and HIRLAM11
00z, 06z, 12z, 18z
HIRLAM22 analysis + 48 hour
2 hours cutoff
HIRLAM 11 analysis + 24 hour
1 hour 15 min cutoff
ECMWF preprocessing
SYNOP, TEMP, PILOT,
BUOY, AIREP, AMDAR
ATOVS AMSU-A radiances –
EARS ( over sea )
VAD-winds passive
HIRLAM22
40 levels, 0,2O (22km)
horizontal resolution
306x306 gridpoints
ECMWF boundaries every 3h - BC
Semi-Lagrangian time stepping
10 min
HIRLAM11
60 levels, 0,1O (11km)
246x268 gridpoints
HIRLAM22 boundaries
Semi-Lagrangian time stepping 5 min
Hirlam system
HIRLAM version 5.1.4
3D-VAR analysis
DFI initialisation
ISBA ( surface scheme )
CBR ( turbulence )
Kain-Fritsch ( convection )
Rasch-Kristjansson ( large scale )
MPI parallel
PLANS
Hirlam version 6.3.4
4D-VAR on limited area
improved treatment of
snow in ISBA
new observations
VAD wind profiles
GPS humidity
AMSU-B humidity
( over sea )
test of non hydrostatic
model
10 m wind
Coastal stations
precip
Computer system at the National Supercomputing Centre at Linköping University
Operational :
PC-cluster HOME-MADE
Linux RedHat
Intel, GNU and PGI compilers
ScaMPI, MPICH,LAM mpi-lib
Intel MKL – Math Kernal Library
Open PBS batch system
Backup: SGI ORIGIN 3800
128 MIPS R14000 processors
128 GFLOPS peak performance
128 GB shared memory
IRIX operating system
LSF batch system
New cluster
> 80 PE
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