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SMHI operational HIRLAM EWGLAM 2004 4 - 7 October , OSLO Lars Meuller SMHI

SMHI operational HIRLAM EWGLAM 2004 4 - 7 October , OSLO Lars Meuller SMHI. Operational HIRLAM 4 forecasts every day. HIRLAM22 and HIRLAM11 00z, 06z, 12z, 18z HIRLAM22 analysis + 48 hour 2 hours cutoff HIRLAM 11 analysis + 24 hour

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SMHI operational HIRLAM EWGLAM 2004 4 - 7 October , OSLO Lars Meuller SMHI

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  1. SMHI operational HIRLAMEWGLAM 2004 4 - 7 October , OSLOLars Meuller SMHI • Operational HIRLAM • 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) • horizontal resolution • 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 theNational Supercomputing Centreat Linköping University www.nsc.liu.se 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 • LSFbatch system New cluster > 80 PE discussions started

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