DUACS MY system impacting version changes

Table : Overview of the main evolutions implemented in the DT processing. (DT-2018 and DT-2021 version is no longer available).

Date of changeSystem versionProduct versionDescription of the change
Apr-186DT-2018Full Reprocessing for REP products (1993-2017) for CMEMS v4.0:
DUACS DT-2018 version
Jun-186.1DT-2018Production of the -May ,2017-January ,2018 period
Introduction of Jason-2 Long Repeat Orbit Phase
Six satellites are used during this update in the DT processing chain (ALG, C2, H2G, J2G, J3, S3A)
Oct-186.1DT-2018Production of the January 18,2018 – June 10, 2018 period.
Five satellites are used during this update in the DT processing chain (ALG, C2, H2G, J3, S3A)
Apr-196.2DT-2018Production of the June 11,2018 – September 23, 2018 period
– Introduction of the Europe L3 products – Remove Med. and Black Sea L3 products.
– L3 products vfex and vxxc are included in new phy_l3 product
– E1G is introduced as a new dataset. Before it was integrated in the E1 mission.
– AL and ALG begin and end dates of the temporal period processed by REP/DT system has been modified.
– Use of new Sentinel-3A Hybrid Mean Profile for global and regional product. Global data have been reprocessed.
– All NetCDF produced are in NetCDF-4 format
Jul-196.3DT-2018Production of the September 24, 2018 – December, 2018 period.
Introduction of Sentinel-3B
Dec-196.3DT-2018Redelivery of the September 24, 2018 – January 12, 2019 production for correction of an anomaly of data availability near the coast
Production of the January 12, 2019 – May 13, 2019 period
Jul-206.3DT-2018Production of the May 14, 2019 – October 15, 2019 period
Add monthly mean dataset
Dec-206.3DT-2018Production of the October 16, 2019 – March 07, 2020 period
Extension of the monthly mean dataset October 2019 to February 2020
May-216.4DT-2018H2AG mission is deactivated from DUACS
Production of the March 08, 2020 – June 03, 2020 period Extension of the monthly mean dataset, March 2020 to May 2020
Dec-217DT-2021Full reprocessing taking into account
– New altimeter standards and geophysical corrections
– New MSS and MP
– New mapping parameters
– Improved LWE correction
– NetCDF format change / product/dataset nomenclature change
Jun-227DT-2021Temporal extension covering the period 2021/08/03 – 2021/12/31
Jul-227DT-2021Temporal extension covering the period 2022/01/01 – 2022/02/09
Dec-227.1DT-2021Temporal extension covering the period 2022/02/10 – 2022/06/23
Sentinel-6A introduced as new reference mission (LR measurements).
Jason-3 orbit change; addition of new “j3n” dataset.
Mar-227.1DT-2021Temporal extension covering the period 2022/06/24 – 2022/08/04
Jan-237.1DT-2021Temporal extension covering the period 2022/08/05 – 2023/06/07
May-247.2DT-2021 interimTemporal extension covering the period 2023/06/08 – 2023/09/08
Nov-248DT-2024Full reprocessing taking into account
– New altimeter standards and geophysical corrections
– New MSS and MP
– New MDT
– New mapping method (SLA & LWE computation)
– Change of the geostrophic current computation method
– Change of the L4 product spatial resolution
– NetCDF format change / product/dataset nomenclature change
Nov-258DT-2024Demonstrative reprocessing using new MIOST mapping technique including additional physical modes

More details on the dedicated pages by clicking on the date in the table or consulted the FAQ page for older informations