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● experimental run of a parallel data assimilation cycle with an objective analysis based on a hybrid EnKF-3Dvar approach. ● horizontal resolution doubling (0.125 Deg., ∼14 Km). Fig.2 Examples of NMC-derived background error correlations. Local Area Modelling The current operational implementation of the Lokal Modell (LM-EURO) has been enlarged to cover the whole mediterranean basin, as shown in Fig.3 and summarized in Table 2, while the number of vertical layers has been increased to 40. 110
Fig.3 Integration domain for LM- EURO model. Domain size 641 x 401 Grid spacing 0.0625 (7 km) Number of layers 40 Time step and scheme 40 s, 2 time-lev split-expl Forecast range 60 hrs Initial time of model run 00 UTC Lateral bound. condit. IFS L.B.C. update frequency 3 hr Initial state ICNMCA 3DVAR (Interp.) Initialization Digital Filter External analysis T,u,v, PseudoRH, SP Special features Filtered topography Status Operational Hardware IBM P690 (ECMWF) N° of processors 120 Table 2 Characteristics of LM-EURO model. In parallel with the operational configuration of the Lokal Modell described above, an experimental one has been set up over the Italian domain (LM-ITA, Fig.4 and Table 3). Fig.4 Integration domain for LM-ITA model Domain size 542 x 604 Grid spacing 0.025 (2.8 km) Number of layers 50 Time step and scheme 30 s 3 time-lev split-expl Forecast range 48 hrs Initial time of model run 00 UTC Lateral bound. condit. LM-EURO L.B.C. update frequency 1 hr Initial state LM-EURO Initialization Digital Filter External analysis None Special features Filtered topography Status Experimental Hardware IBM P690 (ECMWF) N° of processors 160 Table 3 Characteristics of LM-ITA model. The LM-ITA implementation differs from the LM-EURO implementation in terms of both horizontal (2.8 vs 7 Km) and vertical resolution (50 vs 40 layers). Taking into account the complex orographic structure of Italy (Fig.5), this increase in resolution should be beneficial towards a more realistic treatment of near surface parameters and accurate forecast of sensible weather. 111
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NEWSLETTER of the 28 th EWGLAM and
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Newsletter of the 28th EWGLAM and 1
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6.2 P. Clark et al.: The Convective
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1.1 Foreword In 2006, MeteoSwiss ha
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Cornel Soci National Meteorological
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16:15 - 16:45 Filip Vana general Dy
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2 Consortia and ECMWF reports 12
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Research Progress at ECMWF 2005-200
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ocean data assimilation system for
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Physical Aspects 1) The introductio
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either with a 1-dimensional observa
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2.2 ALADIN 22
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Another important event happened, i
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• However inspection of T2m forec
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Figure 4: One case of intercomparis
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The COSMO Consortium in 2005-2006 T
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2. Model system overview The key fe
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Data Assimilation for LM Method: Nu
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2. LM performance known, critically
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expected to result in an improved r
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Schrodin, R. and H. Heise, 2002: Th
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HIRLAM-A activities in 2006 Jeanett
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addition, research on the construct
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HIRLAM Reference System development
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Fig. 2: Case study for 10 June 2006
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Unified Model Developments 2006 Met
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Figure 4: Noise in increments from
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Cycle Date Model change and impact
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1.5km On-demand model Figure 8: 1.5
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Page 63 and 64: • A prognostic mass-flux scheme f
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Page 69 and 70: New computer Core of the new comput
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Page 79 and 80: LAM efforts at Estonian Meteorologi
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Page 91 and 92: Fig.1. The ALADIN-France domain, wi
Page 93 and 94: Towards AROME, A first try of a Rap
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Page 97 and 98: In August 2006 production with the
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Page 101 and 102: • LBC coupling at every 3 hours O
Page 103 and 104: IFS as driving model for ALADIN. Th
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Page 107 and 108: Filtering: Fourth order implicit ho
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Page 117 and 118: esults with fixed entrainment and d
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Page 127 and 128: (a) Figure 2 ALADIN/Portugal geogra
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Page 131 and 132: LAM ACTIVITIES IN ROMANIA Cornel SO
Page 133 and 134: Fig.3 HRM domain, 78 cumulated prec
Page 135 and 136: - Experiments : variation of the fr
Page 137 and 138: NWP activities at Slovak Hydrometeo
Page 139 and 140: Operational suite upgrades • 23/0
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Page 143 and 144: First experiments with new physical
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Page 147 and 148: NWP activities in INM Bartolomé Or
Page 149 and 150: 1 System definition • Creation of
Page 151 and 152: MSLP June-August 2006 Geopotential
Page 153 and 154: NATIONAL STATUS REPORT on Operation
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Page 157 and 158: Numerical Weather Prediction at Met
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4.1 F. Vana: Dynamics & Coupling, A
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5 Scientific presentations on data
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COSMO: Overview and Strategy on Dat
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Meteorology in Hamburg (MPI-M). The
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temperature forecasts, this had a s
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5.2 D. Leuenberger et al.: The Late
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scaling factor α and of the latent
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a) b) RAD 1 2 3 4 5 6 7 8 9 10 det
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5.3 C. Fischer and A. Horanyi: Alad
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Figure 1: analysis increments of wi
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3) Averaged emissivities + dynamica
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In parallel, a direct radar observa
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►Algorithms: • FGAT (with Hunga
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Data assimilation activities in LAC
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Fig.3 RMSE difference (WDEF-NAM2).
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6 Scientific presentations on physi
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Physics improvements in the NAE mod
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The top panel in figure 3 shows tha
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The Murk aerosol is based on the ur
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Relaxation term Due to these proble
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Figure 12: SOx emissions in 1990 an
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Buncefield oil depot fire Figure 15
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6.2 P. Clark et al.: The Convective
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y the model (e.g. streaks of gradua
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the Met Office Large Eddy Model (LE
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Figure 4 Domains used in high resol
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1.0 95th percentile threshold Fract
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Figure 10 Surface precipitation rat
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HIRLAM Physics developments Sander
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strong winds. This causes a too lar
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epresenting the weather in the case
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ALARO-0 Physics developments at LAC
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eflectance for sample of 3-layer in
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2.1 Pseudo prognostic turbulent kin
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TKE and the integral buoyancy of th
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7 Scientific presentations on predi
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LAMEPS Development of ALADIN-LACE Y
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The more iterations performed, the
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uncertainty in the model physics, t
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In Budapest, dynamical downscaling
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7.2 J. García-Moya et al.: Recent
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Currently the size of the super ens
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Palmer, T.N., Alessandri, A., Ander
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Figure 4 Example of probability map
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More than 15 mm/6 hours Figure 6 Re
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7.3 C. Marsigli et al.: The COSMO S
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Overview COSMO ensemble systems Pie
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COSMO-LEPS 16-MEMBER EPS An objecti
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The used models are LAMI (Italy), a
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28th EWGLAM Meeting 9-11 October 20
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9 SRNWP business meeting report 293
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Minutes of the Meeting Participatio
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Training and Education Activities i
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These reports were very divers, fro
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Contacts with the Academia In his d
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