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  • For expanded table view with major model changes click  Expand/collapse the table  below
  • For detailed  model description click the centre name in the 1st column
  • For official model changes documentation follow the link in the last column


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titleExpand/collapse the table

Expanded view with major model changes

  • Table shows the latest known model's configuration
  • Models' outputs are archived on their original grid or on the coarser regular lat/lon grid
  • Click the model acronym to get more details about model upgrades
expand

Centre (MARS origin)

Model version
Implementation (xls)
Implement. date

Time range

[Days/Hours]

Resolution (original)

Resolution (original)

[km]

Resolution (archived)

[° ]

Ens. Size

High-res.? *1

Runs [UTC]

Ensemble assimilation methodPerturbed Obs.?Perturbed initial cond.?Model uncertainty?Size of 1 run [GB]

Full details

Official model changes link
BoM (ammc)

d 0-10

0,45 x 0.5 (800 x 600)17
0/6/12/18



23.5
Latest (2020-23-04)

CMA (babj)

d 0-150.5° x 0.5°50as original30
0/12



41
Latest (2018-12-26)

CPTEC (sbsj)

d 0-150.9375° x 0.9375° ( 384 x 192, GG ) 104as original15
0/12



7
Latest (2010-11-09)

ECCC (cwao)

d 0-16Yin-Yang grid391 x 1(360 x 181)21
0/12



4
Latest (2019-07-03)

ECMWF  (ecmf) CY47R1 30/06/2020 d 0-15

O640  L91

(d 0-15)

16
O640 (ORGG)
as original51
 0/12 Ensemble of 4DVar Yes - based on a variety of approaches 2 day SVs at T42 SPPT on scales 500km 6h, 1000km 3d , 2000km 30d 710
Latest (2013-11-01)
link

CY41R208/03/2016

O640

(d 0-15)

16










CY40R1
01
19/
01
11/
2015
2013
L91 (vert. resol. change)











CY36R126/01/2010
Tco639/319 

T639

(T319 after day 10) 

32 (64)
CY40R1











CY30R101/
01/2015Tco639/319 (after day 10) L9132/64
02/2006d 0-15T39960as original51
0/12





IMD (vabb)

d 0-10T1534 L64 (3072 x 1536 RGG)120.12 x 0.12 (3000 x 1501)21
0/12



242
Latest (2020-07-01)

JMA (rjtd)

d 0-11

1.25° x 1.25° (288 x 145, TL479 L100)

139as original27
0/12



4.7
Latest (2017-01-19)

KMA (rksl)

d 0-100.3° x 0.45° (800 x 600)33as original25
0/12



52
Latest (2013-06-26)

M-F (lfpw)

h 0-72/0-108TL538 L60 c2.415-87**

1.5 x 1.5 (240 x 121)

35
6/18



0.8/1.2
Latest (2015-07-15)

NCEP (kwbc)

d 0-16TL1534/382 (after day 10) L64 12/551 x 1 (360 x 181)21
0/6/12/18



5.1
Latest (2008-10-20)

NCMRWF (dems)

d 0-100.117° x 0.175° (ACG, N1024)130.18 x 0.12 (2000 x 1501)12
0/12



268
Latest (2020-06-11)

UKMO (egrr)

h 0-174

0.187° x 0.28125°

(1280 x 960, ACG, N640)

21as original18
0/6/12/18



63
Latest (2017-07-11)


Current model details


Model versionImplementation Implement. date

Time range

[Days/Hours]

Resolution (original)

Resolution (original)

[km]

Resolution (archived)

[° ]

Ens. Size

Runs [UTC]

Ensemble assimilation methodPerturbed Obs.?Perturbed initial cond.?Model uncertainty?Size of 1 run [GB]

Full details

(xls)Official model changes link
BoM (ammc)

d 0-10

0,45 x 0.5 (800 x 600)170/6/12/18



23.5Latest (2020-23-04)
CMA (babj)

d 0-150.5° x 0.5°50as original300/12



41Latest (2018-12-26)
CPTEC (sbsj)

d 0-150.9375° x 0.9375° ( 384 x 192, GG ) 104as original150/12



7Latest (2010-11-09)
ECCC (cwao)

d 0-16Yin-Yang grid391 x 1(360 x 181)210/12



4Latest (2019-07-03)
ECMWF (ecmf)CY47R130/06/2020d 0-15

O640 L91

Tco639/319 (after day

(d 0-15)

L91

16/32as originalO640 (ORGG)510/12Ensemble of 4DVarYes - based on a variety of approaches2 day SVs at T42SPPT on scales 500km 6h, 1000km 3d , 2000km 30d710Latest (2013-11-01)link
IMD (vabb)

d 0-10T1534 L64 (3072 x 1536 RGG)120.12 x 0.12 (3000 x 1501)210/12



242Latest (2020-07-01)
JMA (rjtd)

d 0-11

1.25° x 1.25° (288 x 145, TL479 L100)

139as original270/12



4.7Latest (2017-01-19)
KMA (rksl)

d 0-100.3° x 0.45° (800 x 600)33as original250/12



52Latest (2013-06-26)
M-F (lfpw)

h 0-72/0-108TL538 L60 c2.415-87**

1.5 x 1.5 (240 x 121)

356/18



0.8/1.2Latest (2015-07-15)
NCEP (kwbc)

d 0-16TL1534/382 (after day 10) L64 12/55 1 x 1 (360 x 181)210/6/12/18



5.1Latest (2008-10-20)
NCMRWF (dems)

d 0-100.117° x 0.175° (ACG, N1024)130.18 x 0.12 (2000 x 1501)120/12



268Latest (2020-06-11)
UKMO (egrr)

h 0-174

0.187° x 0.28125°

(1280 x 960, ACG , N640)

21 as original 180/6/12/18



63Latest (2017-07-11)
  • GG = Gaussian grid
  • RGG = reduced Gaussian grid
  • ACG = Arakawa C grid
  • ORGG = octahedral reduced Gaussian grid
  • SV = sigular vector
  • SSPT = stochastically perturbed physics tendencies
  • ** because of the stretching (2.4) the horizontal resolution ranges from 15 (over France) to 87 km depending on the location
  • *1 it has been agreed to provide if possible the additional high resolution forecast outputs (type=fc in MARS) interpolated to the same resolution as ensemble