Page History

Real-time forecasts

present

Nominal start dates	ECMWF			Météo-France				Met Office(a)								DWD		CMCC		NCEP	JMA		ECCC
	System 4	SEAS5 (system=5)	SEAS5 (system=51)	System 5	System 6	System7	System8	system=12	system=13	system=14	system=15	GloSea6 (system=600)	GloSea6 (system=601)	GloSea6 (system=602)	GloSea6 (system=603)	GCFS2.0	GCFS2.1	SPSv3	SPSv3.5	CFSv2	CPS2	CPS3	GEM-NEMO	CanCM4i	GEM5-NEMO
September 2017 - October 2017
November 2017 - January 2018
February 2018 - April 2018								(1)
May 2018 - October 2018
November 2018 - April 2019									(3)
May 2019 - September 2019										(2)
October 2019 - April 2020
May 2020 - September 2020
October 2020
November 2020 -  February 2021
March 2021 - April 2021												(4)
May 2021 - June 2021
July 2021 - November 2021
December 2021 - January 2022
February 2022
March 2022 - October 2022
November 2022 -	February 2023			(5)
March 2023(6) - February 2024
From March 2024

⁽¹⁾ Upgrade on data provision: changes in set of parameters available, see column noted with 'C3S-0.1 netcdf' in this link. Data deficiencies fixed, see known issues D2 and D3.
⁽²⁾ Upgrade to model version: GloSea5-GC2-LI. Data deficiencies fixed, see known issue D9.
⁽³⁾ Hindcast period is extended to 2016.
⁽⁴⁾ With the introduction of GloSea6, the labelling of the system keyword for systems with hindcasts produced on-the-fly was changed. More details here.
⁽⁵⁾ Due to technical reasons, a new version of ECMWF SEAS5 data has been created using the keyword system=51. See details on Announcements (date 12/October/2022)
⁽⁶⁾ From March 2023 a dataset with ocean variables is available from the CDS catalogue (see details on availability here).

Hindcasts

Nominal start date	ECMWF			Météo-France				Met Office(a)								DWD		CMCC		NCEP	JMA		ECCC			Nominal start date
	System 4	SEAS5 (system=5)	SEAS5  (system=51)(b)	System 5	System 6	System 7	System 8	system=12	system=13	system=14	system=15	GloSea6 (system=600)	GloSea6 (system=601)	GloSea6 (system=602)	GloSea6 (system=603)	GCFS2.0	GCFS2.1	SPSv3	SPSv3.5	CFSv2	CPS2	CPS3	GEM-NEMO	CanCM4i	GEM5-NEMO
January

				(c)	(c)	(c)	(c)	(c)	(c)	(c)	(c)											January
February

																					February
March

																							March
April

																							April
May

																							May
June

																					June
July

																						July
August

																						August
September

																							September
October																										October
November																										November
December																										December

^(a)For the Met Office contribution, due to the production of hindcasts "on-the-fly", the CDS keyword 'system' does not have the same meaning as for the other contributors. More details here.
^(b) Due to technical reasons, a new version of ECMWF SEAS5 data has been created using the keyword system=51. See details on Announcements (date 12/October/2022)
^(c) Hindcast data for January 1993 is not available from MetOffice forecast systems (see "known issue" G4 on the data gaps section)

...