MERCATOR OCEAN JOURNA: 
SEPTEMBER 2021 
L. POST 2021 OBJECTIVES 
The first objective for the continuation of Copernicus Marine 
Service is to maintain and improve the integration of the multi- 
year products, by ensuring the interim production for all variables 
which are the basis for ocean monitoring and ocean state 
reporting activities (see also von Schuckmann et al, this issue). 
Among the many improvements that will be planned in 
each production centre, the scientific and technical cross- 
cutting coordination will focus on the use of river Inputs, 
and the use of Copernicus Marine Service products (Ocean 
data assimilation in wave reanalyses and biogeochemistry 
reanalyses, assimilation of easyCORA in situ observations) 
by Service producers. 
This work on past timeseries is a prerequisite to the 
development of ocean climate projections. Collaboration 
across Copernicus Services will be further developed, In 
order to improve the consistency of the Essential Ocean 
Varlables critical for ocean state monitoring and reporting 
in polar and/or coastal areas. 
ACKNOWLEDGE""ENTS 
These achievements rely on the work of the Copernicus Marine Service Multi-Year product experts including (non- 
axhaustive list): Signe Aaboe, Emmanuelle Autret, Lars Axell, Roland Aznar, Jonathan Baker, Bruno Buongiorno Nardelli, 
Andrea Cipollone, Gianpiero Cossarini, Eric de Boisseson, Antoine Delepoulle, Romain Escudier, Helene Etienne, Claudia 
Fratianni, Gilles Garric, Rianne Giesen, Simon Good, Jerome Gourrion, Marie-Laure Gregoire, Eric Greiner, Elodie Gutknecht, 
Doroteacino lovino, Laura Jackson, Anette Jonsson, Thomas Lavergne, Stephane Law Chune, Jean-Francois Legeais, 
Patrick Lehodey, Bruno Levier, Vidar Lien, Leonardo Lima, Ye Liu, Simona Masina, Sandrine Mulet, Adam Nord, Coralie 
Derruche, Andrea Pisano, Isabelle Pujol, Roshin Raj, Richard Renshaw, Joanna Staneva, Ad Stoffelen, Andrea Storto, 
Tanguy Szekely, Guillaume Taburet, Jonathan Tinker, Anton Verhoef, Richard Wood, Jiping Xie, Chunxue Yang, Hao Zuo. 
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