NWP at the Italian Weather Service: CURRENT STATUS AND PERSPECTIVES Massimo Bonavita, Lucio Torrisi, Fabrizio Ciciulla and Antonio Vocino UGM-CNMCA, Rome.

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Presentation transcript:

NWP at the Italian Weather Service: CURRENT STATUS AND PERSPECTIVES Massimo Bonavita, Lucio Torrisi, Fabrizio Ciciulla and Antonio Vocino UGM-CNMCA, Rome (Italy) EWGLAM - SRNWP, Ljubljana 3-5 October 2005

CNMCA NWP System Domain size385 x 257 Grid spacing 0.25 Deg (  28 km) Number of layers40 Time step and scheme 150 sec, split semi-implicit Forecast range72 hrs Initial time of model run00/12 UTC L.B.C.IFS L.B.C. update frequency3 hrs Initial stateCNMCA 3D-PSAS InitializationN.M.I. External analysisNone StatusOperational HardwareIBM Power4 N° of processors used14 (Model), 60 (Analysis) EWGLAM - SRNWP, Ljubljana 3-5 October 2005

CNMCA NWP System Domain size465 x 385 Grid spacing (7 km) Number of layers35 Time step and scheme40 s,3 time-lev split-expl Forecast range60 hrs Initial time of model run00 UTC Lateral bound. condit. IFS L.B.C. update frequency3 hrs Initial stateEURO-HRM 3D-PSAS InitializationDigital Filter External analysisT,u,v, PseudoRH, SP Special featuresFiltered topography StatusOperational HardwareIBM P690 (ECMWF) N° of processors120 EWGLAM - SRNWP, Ljubljana 3-5 October 2005

Recent Developments EURO_HRM Model Operational introduction of AMSU-A radiance assimil. RTTOV 7.1 model in forward and T.L. mode AMSU A channels 5-10 over sea Rain contamination check: |Tobs-Tfg|ch4 < 1.5K (Gerard,2003) Scan position dependent bias correction 200 km thinning EWGLAM - SRNWP, Ljubljana 3-5 October 2005

Recent Developments EWGLAM - SRNWP, Ljubljana 3-5 October 2004

Recent Developments EURO_LM Model  Introduction of prognostic precipitation  New 7-level soil model EWGLAM - SRNWP, Ljubljana 3-5 October 2005

Current Developments Use of AMSU-A radiances over land Introduction of 3h assimilation cycle Experimentation with hybrid EnKF – 3DVar approach EWGLAM - SRNWP, Ljubljana 3-5 October 2005

Current Developments Increase of EURO-HRM horizontal resolution to  14Km Increase of EURO-LM horizontal resolution to  2.5Km EURO-HRM and EURO-LM will be time critical applications at ECMWF EWGLAM - SRNWP, Ljubljana 3-5 October 2005

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