Previous teleconference (2025)

2025-01 S2S Technical Committee teleconference

centre

plans

provide 10m wind 6-hourly

ocean parametersAOB
BoM (ammc)S2S_BoM_25Feb2026.pdf
agreed

The ocean paramaters are included in the latest test samples (to be implemented in 20026)

CMA (babj)S2S-CMA-2026.pdfagreeddone
CNR-ISAC (isac)ISAC_S2S_update2026.pdfdone

CNRM (lfpw)2026_S2S_CNRM_update.pdfdonedone

The new fixed CNRM hindcasts have not been uploaded yet to the S2S archive, which causes their output cannot be used to compute anomalies etc from the current realtime data. Users should be warned about that (not to use previous hindcasts on current model).

=> warnings amended in CNRM Model & Models The new reforecasts will be processed asap.

CPTEC (sbsj)CPTEC-S2S-update-Feb-2026.pdfdone

RMM from CPTEC is missing

=> Frederic will check and add it to the suite to be processed in the future.

ECCC (cwao)ECCC_S2S_update2026.pdfdonedone
ECMWF (ecmf)ECMWF_S2S_Update_2026.pdfdonedone
IAP CAS (anso)IAP-CAS_QingBao_2026Feb.pdfdone

JMA (rjtd)done

KMA (rksl)S2S_KMA_2026.pdfdonedone
NCEP (kwbc)NAdone

AIML related to S2S?

=> No data provider has plans to produce data driven output operationally yet (only ECMWF in experimental mode later this year)

RHMC (rums)HMCR2026.pdf


UKMO (egrr)S2S_MetOffice_202602.pdf

Do we have stats who gets the most recent realtime data? That could help to reconsider current 3 weeks delay for UKMO data.

=> See statistics on usage at ECMWF



Statistics on user uptake of reduced delay

The table below shows statistics of access to real-time data (all providers) in the last 30 days split in 4 categories:

The numbers clearly show users are interested in early access to S2S data.

Access to real-time data in last 30 daysComments

  • out of 16 TB of data retrieved in total, ~ 4 TB were for data less than 1 week old
  • out of a total of 221 users retrieving data in the last 30 days, 97 users accessed data less than 1 week old

  • same stats shown in a pie chart, where half of the users retrieve data less than 3 weeks old.