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Expanded view with major model changes

(in bold the changes from the previous model set up)

3250+11° L42ECCC cwao04/07/20193220/09/2018 L4519982017N/A 401/20160.45x0.45 L401995201411/05/202146

2/week

(Mon, 2/week Mon, 1022/11/2016Tco639 L91 (about 16 km) up to day 15 and Tco319 after day 15 day 1550on the week , 0.25°CY41R208032016L91 15 day 1°NoCY40R1010120151°01/07/202161

weekly

(

1990-2015

weekly907/0130/03/20213449Wed) lagged eps created from 4 runs (*4)1222/03/20173449Wed) lagged eps created from 4 runs (*4)4GSM1403C01/201501/09/202060daily199120164/monthalways on the 1st, 9th, 17th and 25th21519992010 date 01032011daily5° x 0.25° L40

varying resolution (*6)

02/02/2021604 1st, 9th, 17th and 25th)01/09/2018604 1st, 9th, 17th and 25th)17/04/20166001/12/2015 (approx 60km -3+1

	Model version	Implement. date in S2S	Time range	Resolution	Ens. Size	Frequency	Re-forecasts	Rfc period	Rfc frequency	Rfc size	Ocean resolution	Active Sea Ice	Remarks
BoM (ammc)	POAMA P24	01/01/2015	d 0-62	T47 L17	32+1	2/week (Thu, Sun)	fixed	1981-2013 (model version date 01/01/2014)	6/month (always on the 1st, 6th, 11th, 16th, 21st and 26th)	32+1	2° x 0.5° L25	no
CMA (babj)	BCC-CPS-S2Sv2	11/11/2019	d 0-60	T266 L56	3+1	2/week (Mon, Thu)	on the fly	past 15 years	2/week (Mon, Thu)	3+1	0.25°	No	additional ocean parame ters added since 11 Nov 2019
	BCC-CPS-S2Sv1	01/01/2015	d 0-60	T106 L40	3+1	daily	fixed	1994-2014 (model version date 01/05/2014)	daily	3+1	1°	No
CNR-ISAC (isac)	GLOBO	08/06/2017	d 0-32	0.75° x 0.56° L54	40+1	weekly (Thu)	fixed	1981-2010 (model version date 08/06/2017)	every 5 days (the same days each Rfc year *1)	4+1	N/A	N/A
	GLOBO	19/01/2017	d 0-31	0.75° x 0.56° L54	40+1	weekly (Thu)	fixed	1981-2010 (model version date 03/26/2015)	every 5 days (the same days each Rfc year *1)	1 (type=cf only)	N/A	N/A
	GLOBO	09/11/2015	d 0-31	0.75° x 0.56° L54	40+1	weekly (Mon)	fixed	1981-2010 (model version date 03/26/2015)	every 5 days (the same days each Rfc year *1)	1 (type=cf only)	N/A	N/A
CNRM (lfpw)	CNRM-CM 6.1	22/10/2020	d 0-	47	T359 L91	25	weekly (Thu)	fixed	1993-2017 (model version date 01/07/2019)	every 7 days (starting from 31/12/1992 *2)	14+1	10	0.25° L75	yes	additional ocean parameters added since 22 Oct 2020
	CNRM-CM 6.0	01/03/2016	d 0-32	T255 L91	50+151	weekly (Thu)	fixed	1993-2014 (model version date 01/12/2014)	4/month (always on the 1st, 8th, 15th and 22nd *2)	14+115	1° L42	yes
CPTEC (	sbsj)	GEPS 6	BAM-1.2	13/12/2023	d 0-	Yin-Yang grid at 0.35° uniform resolution (~39 km) L45	20+1	weekly (Thu)	on the fly	1998-2017	weekly (Thu)	3+1	0.25° L50	yes	additional ocean parameters added since 06 Feb 2020	GEPS 5	35	TQ126 L42	11	2/week (Wed, Thu)	fixed	1999-2018 (model version date 04/01/2023)	every 7 days (starting from 06/01/1999)	11	N/A	N/A
ECCC (cwao)	GEPS 7	02/12/2021	d 0-32	Yin-Yang grid at 0.35° uniform resolution (~39 km)	L85	20+1	weekly (Thu)	on the fly	2001-	2020	weekly (Thu)	3+1	N/A	0.25° L50	yes
	GEPS	6	04/07/	2019	d 0-32	Yin-Yang grid at 0.35° uniform resolution (~39 km) L45	20+1	weekly (Thu)	on the fly	1998-	2017	weekly (Thu)	3+1	N/A	N/A	ECMWF (ecmf)	CY47R2	0.25° L50	yes	additional ocean parameters added since 06 Feb 2020
	GEPS 5	20/09/2018		d 0-	Tco639 L137 (about 16 km) up to day 15 and Tco319 (about 32 km) after day 15	50+1	32	Yin-Yang grid at 0.35° uniform resolution (~39 km) L45	20+1	weekly (	Thu)	on the fly	past 20 years	1998-2017	weekly (	Thu)	3+1	0.25°	yes	CY47R1	N/A	N/A
	GEPS 4	07/01/201630/06/2020	d 0-46	Tco639 L91 (about 16 km) up to day 15 and Tco319 (about 32 km) after day 15 day 15	50+1	32	0.45x0.45 L40	20+1	weekly ( 2/week (Mon, Thu)	on the fly	past 20 years	1995-2014	weekly2/week (Mon, Thu)	103+1	0.25°	yes	additional ocean parameters added since 02 Jan 2020	CY43R1	N/A	N/A
ECMWF (ecmf)	CY48R1	27/06/2023	d 0-46	Tco319L137 (about 32 km)		100+1	2/week (Mon, Thu)	daily	on the fly	past 20 years	2/	week (Mon	/Thu)	10+1	1/4 degree	Yes
	CY47R3	13/	10/	2021	d 0-46	Tco639	L137 (about 16 km) up to day 15 and Tco319 (about 32 km) after day	15	50+1	2/week (Mon, Thu)	on the fly	past 20 years	2/week (Mon, Thu)	10+1	0.25°	yes
	CY41R1CY47R2	1411/05/20152021	d 0-46	TL639 L91 Tco639 L137 (about 32 16 km) up to day 10 15 and TL319 Tco319 (about 64 32 km) after day 10 15 day 15	50+1	2/week (Mon, Thu)	on the fly	past 20 years	2/week (Mon, Thu)	10+1	1°0.25°	Noyes
	CY47R1	30/	06/	2020	d 0-3246	TL639 Tco639 L91 (about 32 16 km) up to day 10 15 and TL319 Tco319 (about 64 32 km) after day 10 15 day 15	50+1	2/week (Mon, Thu)	on the fly	past 20 yearsonce a week	2/week (Mon, Thu)	410+1	0.25°	No	HMCR (rums)	RUMS	yes	6-hourly 10u/v added since 26 Nov 2020
	CY43R1	22/11/2016	d 0-	46	Tco639 L91 (about 16 km) up to day 15 and Tco319 (about 32 km) after day 15 day 15	50+1	2/week (Mon,	1.1° x 1.4° L28	19+1	Thu)	on the fly	past 20 years	2/week	(Mon, Thu)	10+1	N/A	N/A	RUMS	0.25°	Yes	additional ocean parameters added since 02 Jan 2020
	CY41R2	08/03/201608/06/2017	d 0-61	1.1° x 1.4° L28	19+1	46	Tco639 L91 (about 16 km) up to day 15 and Tco319 (about 32 km) after day 15 day 15	50+1	2/week (Mon, weekly ( Thu)	on the fly 1985-2010	past 20 years	2/week weekly (Mon, Thu)	910+1	N/A	N/A	RUMS	1°	No
	CY41R1	14/05	/2015	d 0-61	1.1°x 1.4° L28	19+1	46	TL639 L91 (about 32 km) up to day 10 and TL319 (about 64 km) after day 10	50+1	2/week (Mon, Thu weekly (Wed )	on the fly 1985-2010	weekly (Wed)	past 20 years	2/week (Mon, Thu)	109+1	N/A	N/A	JMA (rjtd)	GEPS2103	1°	No
	CY40R1	01/01/2015		d 0-	Tl479/Tl319 L128 (about 40/55 km)	49+1	weekly (Wed) lagged eps created from 2 runs (*5)	fixed	1981-2020 (model version date 31/03/2021)	2/month (always on the 15th and the last day of month *3)	12+1	N/A	N/A	GEPS2003	24/03/2020	d 0-34	Tl479/Tl319 L100 (about 40/55 km)	32	TL639 L91 (about 32 km) up to day 10 and TL319 (about 64 km) after day 10	50+1	2/week (Mon, Thu)	on the fly	past 20 years	once a week (Thu)	4+1	1°	No
HMCR (rums)	RUMS	15/09/2022	d 0-46	0.9° x 0.72° L96	40+1	weekly (	Thu)	on the fly	1991-2015	weekly (Thu)	10	fixed	1981-2010 (model version date 31/03/2020)	2/month (always on the 15th and the last day of month *3)	+1	N/A	N/A	GEPS1701	6-hourly 10u/v added since 15 Sept 2022 added 10 hPa pressure level since 15 Sept 2022
	RUMS	01/07/2021	d 0-	Tl479/Tl319 L100 (about 40/55 km)	61	1.1° x 1.4° L28	19+1	weekly (	Thu)	on the fly	1990-2015	weekly (Thu)	9	fixed	1981-2012 (model version date 31/01/2017)	3/month (always on the 10th, 20th and the last day of month *3)	+1	N/A	N/A
	RUMS	08/06/	2017	d 0-34	Tl319 L60 (about 55 km)	61	1.1° x 1.4° L28	1924+1	2/weekweekly (Tue, WedThu)	fixedon the fly	19811985-2010 (model version date 04/03/2014)	3/month (always on the 10th, 20th and the last day of month *3)		weekly (Thu)	94+1	N/A	N/A
	RUMS	07/01/2015	KMA (rksl)	GloSea5-GC2		d 0-	N216 L85 (0.83° x 0.56°, about 60 km in mid latitudes)	3+1	61	1.1°x 1.4° L28	19+1	weekly (Wed)	on the fly	1985-	2010		weekly (	Wed)	9+1	0.25° L75	yes	Nine additional parameters allowing computing MJO indices added since 01/08/2020 to the real-time data and since 01/09/2020 to the reforecasts.	GloSea5-GC2	01/11/2016	d 0-60	N216 L85 (0.83° x 0.56°, about 60 km in mid latitudes)	3+1	daily	on the fly	1991-2010	4/month (always on the 1st, 9th, 17th and 25th)	2+1	0.25° L75	yes	N/A	N/A
IAP- CAS (anso)	CAS-FGOALS-f2-V1.3	2021/09/12	d 0-65	C96 L32	16	daily	fixed	1999-2018 (model version date 01/01/2019)	daily	4	1° L60	yes
JMA (rjtd)	CPS3	19/02/2023	d 0-34	Tl319L100	4	NCEP (kwbc)	CFSv2	10/03/2015	d 0-44	T126 L64 (about 100 km)	+1	daily	fixed	1991-	2020 (model version	date 30/	09/	2022)	2/month *(3)**	4+1	0.	25° L60	yes	6-hourly 10u/v added since 19 Feb 2023 the new reforecast set (model version date 30/09/2022) to be added soon
	GEPS2203	15/03/2022	yes	UKMO (egrr)	GloSea6		d 0-	N216 L85	3+1	daily	on the fly	1993-2016	4/month	6+1	0.25° L75	yes	GloSea5-GC2-LI	03/04/2019	d 0-60	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	3+1	daily	on the fly	1993-2016	34	Tq479/Tq319L128 (about 40/55 km)	49+1	weekly (Wed) lagged eps created from 2 runs (*5)	fixed	1991-2020 (model version date 31/03/2022)	2	/month (always on the	6+1	0.25° L75	yes	reforecasts changed to the new model version since 09/04/2019	GloSea5	15th and the last day of month *3)	12+1	N/A	N/A
	GEPS2103	30/03/2021		d 0-34	Tl479/Tl319 L128 (about 40/55 km)	49+1	weekly (Wed) lagged eps created from 2 runs (*5)	fixed	1981-2020 (model version date 31/03/2021)	2/month (always on the 15th and the last day of month *3)	12+1	N/A	N/A
	GEPS2003	24/03/2020	d 0-34	Tl479/Tl319 L100 (about 40/55 km)	49+1	weekly (Wed) lagged eps created from 4 runs (*4)	fixed	1981-2010 (model version date 31/03/2020)	2	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	3+1	daily	on the fly	1993-2016	4/month (always on the 1st, 9th, 17th and 25th)	6+1	0.25° L75	yes	GloSea5	25/03/2017	d 0-60	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	3+1	daily	on the fly	1993-2015	/month (always on the	6+1	0.25° L75	yes	GloSea5	15th and the last day of month *3)	12+1	N/A	N/A
	GEPS1701	22/03/2017	d 0-34	Tl479/Tl319 L100 (about 40/55 km)	49+1	weekly *(Wed) lagged eps created from 4 runs (4)**	fixed	1981-2012 (model version date 31/01/2017)	3/month (always on the 10th, 20th and the last day of month *3)	4+1	N/A	N/A
	GSM1403C	06/01/2015	d 0-34	Tl319 L60 (about 55 km)	24+1	2/week (Tue, Wed)	fixed	1981-2010 (model version date 04/03/2014)	3	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	3+1	daily	on the fly	1993-2015	4/month (always on the 1st, 9th, 17th and 25th)	2+1	0.25° L75	yes	GloSea5	01/01/2016	d 0-60	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	3+1	daily	on the fly	1996-2009	4/month (always on the 1st10th, 9th, 17th and 25th20th and the last day of month *3)	24+1	0.25° L75	yes	on the fly reforecasts added since 01/01/2016	GloSea5	N/A	N/A
KMA (rksl)	GloSea6-GC3.2	01/06/2023	d 0-60	N216 L85 (0.83° x 0.56°	, about 60 km in mid	latitudes)	8	daily	0.25° L75	yes

Remarks

(*1) CNR-ISAC reforecasts are produced always starting from 1 January each reforecast year and then in 5 days intervals but always on the same days each month. For exact list of reforecast days refer to https://apps.ecmwf.int/datasets/data/s2s-reforecasts-daily-averaged-isac/levtype=sfc/type=cf/
(*2) For exact list of CNRM reforecast dates refer to https://apps.ecmwf.int/datasets/data/s2s-reforecasts-instantaneous-accum-lfpw/levtype=sfc/type=cf/
(*3) For exact list of JMA reforecast dates for each model version date refer to https://apps.ecmwf.int/datasets/data/s2s-reforecasts-instantaneous-accum-rjtd/levtype=sfc/type=cf/
(*4) Lagged JMA ensemble created from 4 runs as described in JMA Model#GEPS1701
(*5) Lagged JMA ensemble created from 2 runs as described in JMA Model#GEPS2003
(*6) 0.5° and in the meridional direction, 0.25° from 10°S to 10°N, progressively decreasing to 0.5° from 10° to 30°, and is fixed at 0.5° beyond 30° in both hemispheres

Current model details

on the fly	1993-2016	4/month (always on the 1st, 9th, 17th and 25th)	7		yes	9 ocean parameters added change applied to the reforecasts since17 Aug 2023
	GloSea6-GC3.2	22/02/2022	d 0-60	N216 L85 (0.83° x 0.56°, about 60 km in mid latitudes)	4	daily	on the fly	1993-2016	4/month (always on the 1st, 9th, 17th and 25th)	3	0.25° L75	yes	6-hourly 10u/v added since 22 Feb 2022 q added to all pressure levels since 22 Feb 2022
	GloSea5-GC2	01/09/2020	d 0-60	N216 L85 (0.83° x 0.56°, about 60 km in mid latitudes)	4	daily	on the fly	1991-2016	4/month (always on the 1st, 9th, 17th and 25th)	3	0.25° L75	yes	Nine additional parameters allowing computing MJO indices added since 01 Aug 2020 to the real-time data and since 01 Sept 2020 to the reforecasts.
	GloSea5-GC2	01/11/2016	d 0-60	N216 L85 (0.83° x 0.56°, about 60 km in mid latitudes)	4	daily	on the fly	1991-2010	4/month (always on the 1st, 9th, 17th and 25th)	3	0.25° L75	yes
NCEP (kwbc)	CFSv2	10/03/2015	d 0-44	T126 L64 (about 100 km)	15+1	daily	fixed	1999-2010 (model version date 01/03/2011)	daily	3+1	0.5° x 0.25° L40 varying resolution (*6)	yes
UKMO (egrr)	GloSea6	02/02/2021	d 0-60	N216 L85	4	daily	on the fly	1993-2016	4/month	7	0.25° L75	yes
	GloSea5-GC2-LI	03/04/2019	d 0-60	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	4	daily	on the fly	1993-2016	4/month (always on the 1st, 9th, 17th and 25th)	7	0.25° L75	yes	reforecasts changed to the new model version since 09 Apr 2019
	GloSea5	01/09/2018	d 0-60	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	4	daily	on the fly	1993-2016	4/month (always on the 1st, 9th, 17th and 25th)	7	0.25° L75	yes
	GloSea5	25/03/2017	d 0-60	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	4	daily	on the fly	1993-2015	4/month (always on the 1st, 9th, 17th and 25th)	7	0.25° L75	yes
	GloSea5	17/04/2016	d 0-60	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	4	daily	on the fly	1993-2015	4/month (always on the 1st, 9th, 17th and 25th)	3	0.25° L75	yes
	GloSea5	01/01/2016	d 0-60	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	4	daily	on the fly	1996-2009	4/month (always on the 1st, 9th, 17th and 25th)	3	0.25° L75	yes	on the fly reforecasts added since 01/01/2016
	GloSea5	01/12/2015	d 0-60	N216 L85 0.83° x 0.56° (approx 60km in mid-latitudes)	4	daily					0.25° L75	yes

Remarks

(*1) CNR-ISAC reforecasts are produced always starting from 1 January each reforecast year and then in 5 days intervals but always on the same days each month. For exact list of reforecast days refer to https://apps.ecmwf.int/datasets/data/s2s-reforecasts-daily-averaged-isac/levtype=sfc/type=cf/
(*2) For exact list of CNRM reforecast dates refer to https://apps.ecmwf.int/datasets/data/s2s-reforecasts-instantaneous-accum-lfpw/levtype=sfc/type=cf/
(*3) For exact list of JMA reforecast dates for each model version date refer to https://apps.ecmwf.int/datasets/data/s2s-reforecasts-instantaneous-accum-rjtd/levtype=sfc/type=cf/
(*4) Lagged JMA ensemble created from 4 runs as described in JMA Model#GEPS1701
(*5) Lagged JMA ensemble created from 2 runs as described in JMA Model#GEPS2003
(*6) 0.5° and in the meridional direction, 0.25° from 10°S to 10°N, progressively decreasing to 0.5° from 10° to 30°, and is fixed at 0.5° beyond 30° in both hemispheres
(*7) +1 means that the model produce unperturbed control forecast. In S2S archive for consistency, there is always one ensemble member archived as of type=cf (number=0) even when the model does not have control forecast concept at all

Current model details

40+119812010 08062017 5 the same days each Rfc year *1) 604072019

1990-2015

N/AGEPS210330032021N/AGloSea5GC20920200.25° L75Nine additional parameters allowing computing MJO indices added since 01/08/2020 to the real-time data and since 01/09/2020 to the reforecasts.

	Model version	Implement. date in S2S	Time range	Resolution	Ens. Size *7	Frequency	Re-forecasts	Rfc period	Rfc frequency	Rfc size *7	Ocean resolution	Active Sea Ice	Remarks
BoM (ammc)	POAMA P24	01/01/2015	d 0-62	T47 L17	32+1	2/week (Thu, Sun)	fixed	1981-2013 (model version date 01/01/2014)	6/month (always on the 1st, 6th, 11th, 16th, 21st and 26th)	32+1	2° x 0.5° L25	no
CMA (babj)	BCC-CPS-S2Sv2	11/11/2019	d 0-60	T266 L56	3+1	2/week (Mon, Thu)	on the fly	past 15 years	2/week (Mon, Thu)	3+1	0.25°	No	additional ocean parame ters added since 11 Nov 2019
CNR-ISAC (isac)	GLOBO	08/06/2017	d 0-32	0.75° x 0.56° L54	40+1	weekly (Thu)	fixed	1981-2010 (model version date 08/06/2017)	every 5 days (the same days each Rfc year *1)	4+1	N/A	N/A
CNRM (lfpw)	CNRM-CM 6.1	22/10/2020	d 0-47	T359 L91	25
Model version	Implement. date in S2S	Time range	Resolution	Ens. Size	Frequency	Re-forecasts	Rfc period	Rfc frequency	Rfc size	Ocean resolution	Active Sea Ice	Remarks	BoM (ammc)	POAMA P24	01/01/2015	d 0-62	T47 L17	32+1	2/week (Thu, Sun)	fixed	1981-2013 (model version date 01/01/2014)	6/month (always on the 1st, 6th, 11th, 16th, 21st and 26th)	32+1	2° x 0.5° L25	no
CMA (babj)	BCC-CPS-S2Sv2	11/11/2019	d 0-60	T266 L56	3+1	2/week (Mon, Thu)	on the fly	past 15 years	2/week (Mon, Thu)	3+1	0.25°	No	additional ocean parame ters added since 11 Nov 2019
CNR-ISAC (isac)	GLOBO	08/06/2017	d 0-32	0.75° x 0.56° L54		weekly (Thu)	fixed	1993-	2017 (model version date	01/	07/	2019)	every	7 days (	starting from 31/12/1992 *2)	10	0.25° L75	yes	additional ocean parame ters added since 22 Oct 2020
CPTEC (sbsj)	BAM-1.2	13/12/2023	d 0-35	TQ126 L42	11	2/week (Wed, Thu)	fixed	1999-2018	4+1	N/A	N/A	CNRM Model (lfpw)	CNRM-CM 6.1	22/10/2020	d 0-32	T359 L91	50+1	weekly	fixed	1993-2017 (model version date 04/01 /07 / 2019 2023)	every 7 days (starting from 3106/1201/1992 *21999)	14+1	1° L42	yes	additional ocean parame ters added since 22 Oct 2020	11	N/A	N/A
ECCC (cwao)	GEPS	7	02/	12/	2021	d 0-32	Yin-Yang grid at 0.35° uniform resolution (~39 km) / L45L85	20+1	weekly (Thu)	on the fly	19982001-20172020	weekly (Thu)	3+1	0.25° L50	yes	additional ocean parameters added since 06 Feb 2020
ECMWF (ecmf)	CY47R2CY48R1	1127/0506/20212023	d 0-46-46	Tco319L137 Tco639 L137 (about 16 km) up to day 15 and Tco319 (about 32 km) after day 15	50100+1	2/week (Mon, Thu)	daily	on the fly	past 20 years	2/ week week (Mon , /Thu)	10+1	0.25°	yes	CY47R1	30/06/2020	d 0-46	32 km up to day 10 64 km after day 10 Tco639/319 L91	50+1	1/4 degree	Yes	additional ocean parameters added since 02 Jan 2020
HMCR (rums)	RUMS	15/09/2022	d 0-46	0.9° x 0.72° L96	40+1	weekly ( 2/week (Mon, Thu)	on the fly	past 20 years	2/week (Mon, Thu)	10+1	0.25°	yes	additional ocean parameters added since 02 Jan 2020	HMCR (rums)	RUMS	08/06/2017	d 0-61	1.1° x 1.4° L28	19+1	weekly (Thu)	on the fly	weekly (Thu)	9+1	N/A	1991-2015	weekly (Thu)	10+1	N/A	N/A	6-hourly 10u/v added since 15 Sept 2022 added 10 hPa pressure level since 15 Sept 2022
IAP- CAS (anso)	CAS-FGOALS-f2-V1.3	2021/09/12	d 0-65	C96 L32	16	daily	fixed	1999-2018 (model version date 01/01/2019)	daily	4	1° L60	yes
JMA (rjtd)	CPS3		19/	02/	2023	d 0-34	Tl479/Tl319 L128	49+1	Tl319L100	4+1	daily weekly (Wed) lagged eps created from 2 runs (*5)	fixed	19811991-2020 (model version date 31date 30/0309/20212022)	2/month (always on the 15th and the last day of month *3)	12+1	N/A	4+1	0.25° L60	yes	6-hourly 10u/v added since19 Feb 2023
KMA (rksl)	GloSea6-	GC3.2	01/	06/	2023	d 0-60	N216 L85 (0.83° x x 0.56°, about 60 km in mid latitudes)	3+18	daily	on the fly	19911993-2016	4/month (always on the 1st, 9th, 17th and 25th)	2+1	7		yes	6-hourly 10u/v added since 22 Feb 2022 q added to all pressure levels since 22 Feb 2022 9 ocean parameters added since 01 Jun 2023
NCEP (kwbc)	CFSv2	10/03/2015	d 0-44	T126 L64 (about 100 km)	15+1	daily	fixed	1999-2010 (model version date 01/03/2011)	daily	3+1	0.5° x 0.25° L40 varying resolution (*6)	yes
UKMO (egrr)	GloSea6	02/02/2021	d 0-60	N216 L85	3+14	daily	on the fly	1993-2016	4/month	6+17	0.25° L75	yes	reforecasts changed to the new model version since 09 Apr 2019

Remarks

(*1) CNR-ISAC reforecasts are produced always starting from 1 January each reforecast year and then in 5 days intervals but always on the same days each month. For exact list of reforecast days refer to https://apps.ecmwf.int/datasets/data/s2s-reforecasts-daily-averaged-isac/levtype=sfc/type=cf/
(*2) For exact list of CNRM reforecast dates refer to https://apps.ecmwf.int/datasets/data/s2s-reforecasts-instantaneous-accum-lfpw/levtype=sfc/type=cf/
(*3) For exact list of JMA reforecast dates for each model version date refer to https://apps.ecmwf.int/datasets/data/s2s-reforecasts-instantaneous-accum-rjtd/levtype=sfc/type=cf/
(*4) Lagged JMA ensemble created from 4 runs as described in JMA Model#GEPS1701
(*5) Lagged JMA ensemble created from 2 runs as described in JMA Model#GEPS2003
(*6) 0.5° and in the meridional direction, 0.25° from 10°S to 10°N, progressively decreasing to 0.5° from 10° to 30°, and is fixed at 0.5° beyond 30° in both hemispheres
(*7) +1 means that the model produce unperturbed control forecast. In S2S archive for consistency, there is always one ensemble member archived as of type=cf (number=0) even when the model does not have control forecast concept at all

Info

title	Retrieval efficiency

In order to retrieve data efficiently users should follow the instructions about S2S reforecasts retrieval efficiency.
Find links here to the efficient retrieval scripts for different S2S datasets via ECMWF Web API

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GEPS 6

GEPS 5

GEPS 7

GEPS

6

GEPS 5

GEPS 4

GEPS2103

GEPS2003

GEPS1701

GEPS2203

GEPS2103

GEPS2003

GEPS1701

GSM1403C