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 change System version Product version Description of the change
April 2018 6.0 DT-2018 Full Reprocessing for REP products (1993-2017) for CMEMS v4.0:

DUACS DT-2018 version

June 2018 6.1 DT-2018 Production 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)

October 2018 6.1 DT-2018 Production 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)

April 2019 6.2 DT-2018 Production 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

July 2019 6.3 DT-2018 Production of the September 24, 2018 – December, 2018 period.

Introduction of Sentinel-3B

December 2019 6.3 DT-2018 Redelivery 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

July 2020 6.3 DT-2018 Production of the May 14, 2019 – October 15, 2019 period

Add monthly mean dataset

December 2020 6.3 DT-2018 Production of the October 16, 2019 – March 07, 2020 period

Extension of the monthly mean dataset October 2019 to February 2020

May 2021 6.4 DT-2018 H2AG 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 2021 7.0 DT-2021 Full 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-2022 7.0 DT-2021 Temporal extension covering the period 2021/08/03 – 2021/12/31
Jul-2022 7.0 DT-2021 Temporal extension covering the period 2022/01/01 – 2022/02/09
Dec-2022 7.1 DT-2021 Temporal 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-2022 7.1 DT-2021 Temporal extension covering the period 2022/06/24 – 2022/08/04
Nov 2023 7.1 DT-2021 Temporal extension covering the period 2022/08/05 – 2023/06/07
May 2024 7.2 DT-2021 interim Temporal extension covering the period 2023/06/08 – 2023/09/08
Dec 2024 8.0 DT-2024 Full 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

 

More details on the dedicated pages by clicking on the date in the table.