EUMETNET-SRNWP Overview of
Operational Numerical Weather Prediction Systems in Europe as of Nov. 2018

(compiled by DWD and OMSZ)
Part I Deterministic Models

Country Model Mesh size
(km)
Number of
gridpoints
Number of
levels
Initial times &
Forecast ranges (h)
Type of data
assimilation
Model providing
LBC data
LBC update
interval (h)
Computer
Denmark HIRLAM T15 16 610 × 568 40 00/06/12/18 +60h 3D-VAR ECMWF/IFS 1h Cray XC30
K05 5.5 874 × 534 40 00/06/12/18 +48h 3D-VAR ECMWF/IFS 1h
SKA 3.3 874 × 658 65 00/06/12/18 +54h 3D-VAR ECMWF/IFS 1h
HARMONIE NEA 2.5 1200 × 1080 65 00/03/06/09/12/15/18/21 +51h 3DVAR ECMWF/IFS 1h Cray-XC30
IGA 2.5 1000 × 800 65 00/06/12/18 +54h Surf-ana only ECMWF/IFS 1h
Estonia HIRLAM ETA II 11 366 × 280 60 00/06/12/18 +54h 3D-VAR fgat ECMWF/IFS 3h Linux Cluster
ETB II 3.3 306 × 306 60 00/12 +36h 3D-VAR fgat ETA II 1h
Finland HIRLAM (7.4) 7.5 1030 × 816 65 00/06/12/18 +54h 4D-VAR ECMWF/IFS 3h Cray XC30
HARMONIE-Arome MNWC 2.5 900 × 960 65 00/02/03...22/23 +9h 3DVAR rapid refresh MetCoOp 1h
Iceland
HARMONIE 2.5 300 × 240 65 00/06/12/18 +48h Surf-ana only ECMWF/IFS 3h Cray @ ECMWF
Ireland HIRLAM 11 654 × 424 60 00/06/12/18 +54h 4D-VAR ECMWF/IFS 3h ECMWF HPC
HARMONIE 2.5 540 × 500 65 00/06/12/18 +54h Surf-ana only ECMWF/IFS 1h
Netherlands HIRLAM CIS (7.2) 11 726 550 60 00/06/12/18 +48h 3D-VAR ECMWF/IFS 3h BullX B500
E11 (7.2) 11 306 290 40 00/03/06/../18/21 +60h 3D-VAR ECMWF/IFS 1h
C11 (7.2) 11 306 290 40 00/03/06/../18/21 +24h 3D-VAR HIRLAM/CIS 3h
H11 (7.4) 11 306 290 40 00/01/02/../22/23 +24h 3D-VAR ECMWF/IFS 1h
BES (7.4) 7.7 438 301 65 00/06/12/18 +48h 3D-VAR ECMWF/IFS 1h
HARMONIE HA36 (36h1.4) 2.5 800 800 60 00/03/06/../18/21 +48h 3D-VAR HIRLAM E11 1h
HA40 (40h1.1.1) 2.5 800 800 65 00/03/06/../18/21 +48h 3D-VAR ECMWF/IFS 1h
MALI (38h1.2) 3 600 1080 65 00/03/06/../18/21 +48h 3D-VAR ECMWF/IFS 1h
VAR-test (36h1.4) 2.5 300 300 60 00/12
06/18
+24h
+6h
3D-VAR ECMWF/IFS 3h at ECMWF
Norway HIRLAM 12 864 × 698 60 00/06/12/18 +66h 3D-VAR fgat ECMWF/IFS 3h SGI ALTIX ICE X HPC
8 344 × 555 60 00/06/12/18 +66h 3D-VAR fgat ECMWF/IFS 3h
HARMONIE MetCoop 2.5 1875 × 2400 65 00/06/12/18 +66h 3D-VAR ECMWF/IFS 3h
AROME Arctic 2.5 750 × 960
739 × 949
65 00/06/12/18 +66h 3D-VAR ECMWF/IFS 3h HP Cluster Platform 3000
with SL230s Gen8 compute nodes
Spain HIRLAM ONR 17 582 × 424 40 00/06/12/18 +72h 3D-VAR ECMWF/IFS 3h Bullx Ivy Bridge
Iberia 5.5 606 × 430 +36h
Canarias
HARMONIE Arome Iberia 2.5 1152 × 864 65 00/06/12/18
03/09/15/21
+48h
+12h
3D-VAR ECMWF/IFS 1h
Canarias 576 × 480
Sweden HIRLAM 11 606 × 606 60 00/06/12/18 +66h 4D-VAR ECMWF/IFS 3h Linux Cluster ClusterVision
Intel Xeon E5-2640v3 (Sweden)
+
Linux Cluster SGI
Intel Xeon E5-2670 (Norway)
5.5 506 × 574 65 00/06/12/18 +48h 3D-VAR ECMWF/IFS 3h
HARMONIE-Arome 2.5 750 × 960 65 00/06/12/18 +60h 3D-VAR-3h-RUC ECMWF/IFS 3h
Austria ALARO 4.8 600 × 540 60 00/06/12/18 +72h surface analysis (OI) ECMWF/IFS 3h SGI ICE-X
AROME 2.5 600 × 432 90 00/03/06/09/12/15/18/21 +48h surface OI
upper-air 3D-Var
ECMWF/IFS 1h
Belgium ALARO 4 432 × 432 87 00/06/12/18 +60h none 3-hourly LBC's from ARPEGE 3h SGI cluster XEON E5-2680V3, 2688 cores
1.3 600 × 600 87 00/06/12/18 +36h none nested in the 4km run 3h
Bulgaria ALADIN 5 256 × 200 105 06/18 +72h none ARPEGE 3h Linux Cluster
AROME 2.5 320 × 240 60 06/18 +36h none ALADIN 1h
Croatia ALADIN 8 229 × 205 37 00/06/12/18 +72h surface OI
upper-air 3D-Var
ECMWF/IFS 3h SGI UV 2000
38 Intel Xeon E5 6-core
2,9GHz CPUs with 228 cores
608GB RAM
ALADIN 4 469 × 421 73 00 +72h surface OI
upper-air 3D-Var
ECMWF/IFS 3h
ALARO 2 439 × 439 37 06 +24h No-assimilation ALADIN 8
(coupled to 6 hrs 00 UTC forecast)
1h
Czech Rep. ALARO 4.7 529 × 421 87 00/06/12
18
+72h
+54h
Blend Var
(Digital filter blending + 3D-VAR)
ARPEGE 3h NEC-LX, 320 nodes, 7680 cores,
64GB per node, 1Pbyte Lustre fast storage
France ARPEGE 7.5-France
37-Antipode
global 105 00
06
12
18
+102h
+72h
+114h
+60h
4D-VAR; 6h - - cluster BLX B710 DLC / Intel Broadwell
AROME-France-CEP 2.5 800 × 750 90 00
12
+48h
+48h
Dynamical Adaptation
coupled with IFS
ECMWF/IFS 1h
AROME-France 1.3 1440 × 1536 90 00/12
03
06/18
09/15/21
+48h
+45h
+42h
+7h
3D-VAR ARPEGE 1h
AROME-NWC 1.3 1440 × 1536 90 every 1h +6h 3D-VAR ARPEGE 1h
France
Overseas
AROME Indian 2.5 889 × 1589 90 00/06/12/18 +42h Dynamical adaptation ECMWF/IFS 1h
Polynesia 589 × 589
Caledonia 589 × 589
Guyana 373 × 489
Antilles 629 × 1069
Hungary ALARO 8 349 × 309 49 00/12
06
18
+60h
+48h
+36h
3D-VAR ECMWF/IFS 3h IBM iDataPlex
Cluster
AROME 2.5 490 × 310 60 00/06/12/18
03/09/15/21
+48h
+36h
3D-VAR ECMWF/IFS 1h
Poland ALARO 4 789 × 789 60 00/06/12
18
+66h
+60h
none ARPEGE 3h Linux cluster
(194xIntel Xeon E5-2690 CPUs)
AROME 2 799 × 799 60 00/06/12/18 +30h none ALARO (4km) 1h
Portugal ALADIN 9 277 × 439 46 00/12 +72h none ARPEGE 3h IBM Power7+
(8+1 nodes)
AROME Mainland 2.5 540 × 480 +48h none ARPEGE 3h
Azores 2.5 259 × 349 none ARPEGE 3h
Madeira 2.5 189 × 181 none ARPEGE 3h
Romania ALARO 6.5 240 × 240 60 00
06
12
18
+78h
+54h
+66h
+54h
none ARPEGE 3h IBM Linux Cluster
Slovakia ALADIN 4.5 625 × 576 63 00
06/12
18
+78h
+72h
+60h
upper-air digital
filter blending
CANARI surface analysis
ARPEGE 3h IBM p755 10 nodes
and IBM Flex System p460 12 nodes
Slovenia ALARO 4.4 421 × 421 87 00/06/12/18
03/09/15/21
+72h
+36h
surface OI, 3DVAR, 3h RUC ECMWF/IFS 3h SGI ICE-X (1284 cores)
Turkey ALARO 4.5 439 × 705 60 12
00/06/18
+60h
+72h
none ARPEGE 3h SGI Ice-X (E5 2690v4,4032 cores)
AROME 1.7 629 × 1589 60 00/06/12/18 +48h none ALARO 1h
Germany ICON 13 global
2-way nest
90 00/12
06/18
03/09/15/21
+180h
+120h
+30h
EnVar, 3h - - Cray XC30/40
ICON-EU 6.5 60
COSMO-D2 2.2 651 × 716 65 00/03/06/.../18/21 +27h LETKF, 1h ICON-EU 1h
Greece COSMO GR7 7 649 × 393 60 00/12 +72h none ECMWF/IFS 3h IBM @ ECMWF
GR2 2.8 501 × 401 60 00/12 +48h none COSMO-GR 1h
Israel COSMO 2.8 561 × 401 60 00/12/ +78h Nudging ECMWF/IFS 1h SGI Linux cluster
AMD Opteron Processor 6276
Italy COSMO ME 5 1083 × 559 45 00/06/12/18 +72h LETKF ECMWF/IFS 3h HP Cluster Linux (COMET)/CRAY (ECMWF)
IT 2.2 576 × 701 65 00/06/12/18 +30/48h LETKF COSMO-ME 1h
5M 5 1083 × 559 45 00/12 +72h LETKF ECMWF/IFS 3h "Galileo" Linux Cluster (CINECA)
2I 2.2 576 × 701 65 00/12 +48h LETKF COSMO-5M 1h
Poland COSMO PL14 14 415 × 460 35 00/06/12/18 +82h none ICON 3h HP Xeon Cluster
PL7 7 380 × 405 40 00/06/12/18 +82h Nudging ICON 3h
PL2.8 2.8 380 × 405 50 00/06/12/18 +48h Nudging COSMO-PL7 1h
Romania COSMO RO7 7 201 × 177 40 00/12 +78h Nudging GME 3h IBM Cluster
(Blade Server)
RO2 2.8 361 × 291 50 00 +30h none COSMO-RO7 1h
Russia SLAV20 20 global 51 00/12 +120h
+240h
3D-VAR,
6h
- - SGI ICE 8200
RSC Tornado
T339L31 35 global 31 00/12 +72h
+240h
3D-VAR,
6h
- -
COSMO Ru13-ENA 13.2 1000 × 500 40 00/12
06/18
+120h
+78h
none ICON 3h
Ru7 7 700 × 620 40 00/12
06/18
+78h
+48h
Nudging ICON 3h
Ru7-ART 7 135 × 150 40 00/
12
+48h
+60h
none COSMO-Ru7 3h
RU2 Moscow 2.2 420 × 470 50 00/06/
12/18
+42h Nudging COSMO-Ru7 1h
Ru2 Kazan 2.2 420 × 470 50 00/06/
12/18
+42h Nudging COSMO-Ru7 1h
Ru2 Sochi 2.2 420 × 470 50 00/06/
12/18
+42h Nudging COSMO-Ru7 1h
Ru1 Sochi 1.1 420 × 470 50 00/06/
12/18
+42h Nudging COSMO-Ru2 1h
Ru13-SIB 13.2 360 × 250 40 00/06/
12/18
+78h
+48h
none ICON 3h SGI Altix 4700
Switzerland COSMO 7 6.6 393 × 338 60 00/06/12/18 +72h Nudging ECMWF/IFS-HRES 1h CRAY
CS-STORM
1 1.1 1158 × 774 80 03
00/06/09/12/15/18/21
+45h
+33h
Nudging ECMWF/IFS-HRES 1h
United Kingdom UM Global 10 global 70
(top 80km)
00/12
06/18
+144h
+48h
4D-VAR - - Cray XC40
Euro4 4.4 1100 × 1000 70
(top 40km)
00/12
06/18
+120h
+60h
none UM (Global) 3h
UKV 1.5 950 × 1015 70
(top 40km)
00/01/02/.../22/23 +12h,+54h,
+120h
4D-VAR UM (Global) 1h
Bosnia-Herzegovina WRR-NMM D1 12 164 × 118 50 00 +96h none GFS(0.5deg) 3h DELL RAK Server
POWEREDGE R715
(2 cpu-s each with 16 cores)
D2 4 158 × 73 50 00 +96h Nudging GFS(0.5deg) 3h
WRF-Chemistry D1 33 100 × 65 35 00 +48h none GFS(0.5deg) 3h
D2 11 52 × 40 35 00 +48h Nudging GFS(0.5deg) 3h
NMMB-model D1 24 150 × 100 45 00 +120h none GFS(0.5deg) 3h Linux PC
(1 cpu with 8 cores)
D2 6 80 × 65 45 00 +120h none GFS(0.5deg) 3h
Montenegro WRF-NMM 9 100 × 170 40 00/12 +144h none GFS/NCEP/Washington 3h Linux PC (4 core)
3 110 × 170 40 00/12 +144h none WRF-NMM 9km 3h
10 196 × 216 38 00 +144h none ECMWF/GFS 3h
3 110 × 170 40 00/12 +144h none ECMWF/GFS 3h
1 100 × 250 60 00/12 +144h none WRF-NMM 3km 3h
0.5 100 × 150 60 00/12 +144h none WRF-NMM 3km 3h
Serbia WRF-ARW 4.25 350 × 250 50 00/12 +72h none ECMWF/IFS 3h HP Proliant DL380 G7, 384 Intel Xeon
ETA 26 145 × 241 32 00/12 +120h none ICON 6h Linux PC
WRF-NMM 4 220 × 290 45 00/12 +72h none ECMWF/IFS 3h HP XC 256 Xeon
12 260 × 500 38 00/12 +120h none ICON 3h HP XC 256 Xeon
12 260 × 500 38 00/12 +192h none GFS 3h
NMMB 30 global 64 00/12 +120h none none (global) - HP Proliant DL380 G7, 384 Intel Xeon
12 394 × 356 64 00/12 +120h none NMMB global 3h
4 306 × 267 64 00/12 +72h none NMMB (12km) - HP Proliant DL380 G7, 384 Intel Xeon
online nested
4 512 × 390 64 00/12 +72h none ECMWF/IFS 3h IBM/CRAY ECMWF
Cyprus WRF-ARW D1 18 64 × 49 60 00/12 +120h none NCEP/GFS 3h IBM iDataPlex dx360 M3
(Cyprus Institute Cy-Tera HPC Facility)
D2 6 49 × 34 60 00/12 +120h none NCEP/GFS 3h
D3 2 88 × 55 60 00/12 +120h none NCEP/GFS 3h
ECMWF IFS 9 global 137 00/12
06/18
+240h
+90h
4D-VAR; using error
estimates from EDA
- - IBM/CRAY

Part II Ensemble Prediction Systems

Country Model Mesh size
(km)
Number of
gridpoints
Number
of
levels
Initial times &
Forecast ranges (h)
Type of data
assimilation
and perturbations
Model providing
LBC data
LBC
update
interval (h)
Number
of
EPS
members
Computer
MetCoOp
(Finland,
Norway,
Sweden)
HARMONIE-AROME 2.5 900 × 960 65 00/06/12/18 +54h 3D-VAR IFS HRES 1h 1+10 Cray XC30 (Finland)
Linux Haswell cluster (Sweden)
Linux Sandy Bridge cluster (Norway)
Denmark HIRLAM-E05 5 496 × 372 40 00/06/12/18 +54h SLAF, stoch. Physics;
2 physics packages
ECMWF 3h 25  
Netherlands HARMONIE-AROME 2.5 800 × 800 65 00/03/06/09/12/15/18/21 +54h 3D-VAR IFS HRES 1h 1+10 BullX B720
Norway LAMEPS / HIRLAM 12 232 × 371 60 06/18 +60h EDA perturbations +
initial ECMWF EPS SVs
ECMWF EPS 3h 20 + 1  
Spain Harmonie: AROME and ALARO
WRF: ARW and NMMB
2.5 576 × 480 65/72 00/12 +36h Downscaling of ECMWF
GFS, CMC, JMA, MF
ECMWF, GFS,
CMC, JMA, MF
3h/1h 20  
Austria
(for ALADIN/LACE)
ALADIN-LAEF 11 600 × 500 45 00/12 +72h Blending ECMWF SV
and ALADIN Breeding
Ensemble Land Surface Analysis
ECMWF EPS 6h 16+1  
France PEARP
(ARPEGE EPS)
10 - France
60 - Antipode
global 90 00/12
06
18
+48h
+90h
+108h
SV initial perturbation;
coupling with global ensemble D.A.
- - 35  
PEARO
(AROME EPS)
2.5 750 × 800 90 03/15
09/21
+45h
+51h
initial conditions perturbations from an Arome-EDA, added to the interpolated Arome-1.3km atmospheric analysis.
Perturbation of some parameters of the Arome surface analysis.
Stochastic perturbations of physical tendencies (SPPT scheme).
PEARP 1h 12  
Hungary
(for ALADIN)
ALARO 8 349 × 309 49 18 +60h SV initial perturbation
in PEARP
PEARP 6h 10+1  
Germany ICON-EPS 40 global
2-way nest
90 00/12
06/18
03/09/15/21
+180h
+120h
+30h
IC from global LETKF
perturbed SST
- - 40 Cray XC30/40
ICON-EU-EPS 20 60
COSMO-D2-EPS 2.2 651 × 716 65 00/03/06/.../18/21 +27h IC from regional LETKF ICON-EPS 1h 20
Italy
(for COSMO)
COSMO-LEPS 7 511 × 415 40 00/12 +132h Interpolation from ECMWF EPS +
soil analysis fields from ICON EU
ECMWF EPS 3h 20  
Italy COSMO-ME EPS 7 779 × 401 45 00/12 +72h LETKF ECMWF EPS 3h 40  
Poland COSMO (PL 2.8) 2.8 380 × 405 50 00/06/12/18 +48h IC from time-lagged deterministic COSMO PL7 perturbed by soil data parameters time-lagged
COSMO PL7
1h 20  
Switzerland COSMO-E 2.2 582 × 390 60 00/12 +120h LETKF ECMWF/IFS-ENS 3h 20+1  
United Kingdom MOGREPS-G 20 global 70 00/06/12/18 +168h ETKF - - 36 (lagged)  
MOGREPS-UK 2.2 740 × 752 70 03/09/15/21 +54h UKV analysis with downscaled perturbations MOGREPS-G 1h 24 (lagged)  
ECMWF IFS EPS 16 TCO639L91 91 00/12
06/18
+360h
+144h
SV initial perturbation +
Ensemble Data Assimilation
- - 50+1