As of March 2023

Real time
BoM(Australia)
CMA(China)
ECCC(Canada)
ECMWF(Europe)
HMCR(Russia)
ISAC-CNR(Italy)JMA(Japan)KMA(Korea)
Met. France(France)
NCEP
(US)
UKMO
(UK)

Reforecast

forecast
lengthmodel
resolution

ens.
size

forecast
freq.

data available
periodsystem(model ver.)

ens.
size

D1 – 62(00UTC)

T47L1733

SunThu2015.01.01 ‐fixed(2014.01.01)

33

D0 – 60(00UTC)

A: T106L40
B: T266L56

4

A: daily
B: Mon, Thu

A: 2015.01.01 ‐B: 2019.11.11 ‐A: fixed (2014.05.01‐)
B: on the fly (2019.11.11 ‐)4on the fly

4Thuon the fly
A: 2015.01.01 ‐B: 2015.05.14 ‐

A: 5
B: 11

A: Thu
B: Mon, Thu

A: 0.45° x 0.45° L40
B&C: 0.35° x 0.35° L45
21(A&B: uncoupled)
A&B: TL639L91(≤D10)
A: D0 – 32
TL319L91(>D10)
B&C: D0 – 46
51
C: Tco639L91(≤D10)(00UTC)
Tco319L91(>D10)
A‐C: D0 – 61 A&B: 1.1° x 1.4°L28
A&B: 20
C: 0.9°x0.72°L96
D: D0 – 46
C: 41(uncoupled)(00UTC)Thu

A: 2016.01.07 ‐B: 2018.09.27 ‐C: 2019.07.04 ‐D: 2021.12.09 ‐A: ThuB&C: Mon,Thu

A: 2015.01.01 ‐B: 2015.05.14 ‐C: 2016.03.08 ‐A&B: D0 – 31
C: D0 – 32(00UTC)

A: MonB&C: Thu

D1 – 32(00UTC)

A: D0.5 – 33.5
B: D0.5 – 32.5

(A&B: 12UTC)
C: D0–34(00UTC)

0.75° x 0.56° L54(a 'slab' ocean)
A: TL319L60
B: TL479L100 (≤D18),
TL319L100 (>D18)(A&B: uncoupled)
C: TL319L100(coupled)

41

A: 25
B: 50
C: 5

A: WedB&C: Thu

A: Tue, Wed
B: Wed*C: daily

A: 2015.01.07 ‐on the fly
A‐C: 10
B: 2017.06.08 ‐ A: 2015.01.07‐, B: 2017.06.08‐
D: 11
C: 2022.09.15 ‐ C: 2021.07.01‐, D: 2022.09.15‐
A: 2015.11.09 ‐fixed
B: 2017.01.19 ‐5(2017.06.08)
C: 2017.06.08 ‐fixed
A&B: 5
A: 2015.01.06 ‐A: 2014.03.04‐, B: 2017.01.31‐ C&D:
B: 2017.03.22 ‐C: 2020.03.31‐, D: 2021.03.31‐ 13
C: 2023.02.19‐
E: 5
E: 2023.02.19‐

D0 – 60(00UTC)

N216(0.83° x 0.56°)
L85

A. D0 – 61
B. D0 – 32
C. D0 – 47(00UTC)

A&B: TL255L91
C: TL359L91

D0 – 44(00UTC)

T126L64

16daily2015.01.01‐

D0 – 60(00UTC)

N216(0.83° x 0.56°)
L85

4daily2015.12.01 ‐4daily2016.11.01 ‐A. 2015.05.01 ‐A&B: 51 A. monthly (1st)B. 2016.03.03 ‐B&C. Thu
C: 25
C. 2020.10.22 ‐on the fly
A: 2016.11.01‐
B: 2020.09.01‐
fixed(A&B: 2014.12.01
C: 2019.07.01)
fixed(2011.03.01)

3A&B: 15

C: 104on the fly
A&B: 3
A: 2016.01.01 ‐ , B: 2016.04.17 ‐C&D: 7
C: 2017.03.25 ‐ , D: 2018.09.01 ‐* After 21 March 2017, JMA's Tue forecast is combined with its Wed forecast for convenience

reforecast
frequency

1st, 6th, 11th,16th, 21st, & 26thof each month
A: daily
B: Mon, Thu

reforecast
periodorig datagrid

1981 ‐ 2013

T47
(144x72)

A: 1994 ‐ 2014
B: previous 15yrs

1.5x1.5

A: 1995 ‐ 2014
B&C: 1998 ‐ 2017
D: 2001 ‐ 2020

1.5x1.5

previous 20yrs(e.g. 1999‐2018)

1.5x1.5

A: WedB‐D: Thu

A&B: 1985 ‐ 2010
C: 1990 ‐ 2015
D: 1991‐2015

1.5x1.5

every 5 days

1981 ‐ 2010

1.5x1.5

A&B: 10th, 20th, & the lastdate of each month
C&D: 15th & the last dateof each month
E: 16/31 Jan,10/25 Feb,12/27
Mar,11/26 Apr,16/31 May,15/30
Jun,15/30 Jul,14/29 Aug,13/28
Sep,13/28 Oct,12/27 Nov, and12/27 Dec

A: 1981 ‐ 2010
B: 1981 ‐ 2012
C: 1981‐2010
D: 1981 ‐ 2020
E: 1991‐2020

1.5x1.5

1st, 9th,17th, & 25thof each month

A: 1991 ‐ 2010
B: 1991 ‐ 2016

1.5x1.5

A&B: 1st, 8th,15th, &22nd of each month
C: ThuA&B: 1993 ‐ 2014
C: 1992 ‐ 2017

1.5x1.5

daily

1999 ‐ 2010

1.5x1.5

1st, 9th, 17th, & 25thof each month

A: 1996 ‐ 2009
B&C: 1993 ‐ 2015
D: 1993 ‐ 2016

1.5x1.5