MERCATOR OCEAN JOURNA: 
SEPTEMBER 2021 
2. PRODUCTS 
Copernicus Marine Service products are based on state- 
of-the-art data processing and advanced modelling and 
data assimilation techniques. Product uncertainties are 
assessed through rigorous iInternationally recognized 
quality assessment methods (Sotillo et al., this issue). 
The Copernicus Marine Service currently provides about 
200 different products for observations and model 
outputs (see catalogue) covering ocean physics (e.g. 
temperature, salinity, sea level, currents, waves), sea- 
ice (e.g., concentration, thickness, drift, icebergs) and 
biogeochemistry (chl-a, oxygen, pH, nutrients). Modelling 
and data assimilation products have a resolution of 1/12° 
for the global scale and from 1/24° to 1/72° for regional 
applications. All disseminated Copernicus Marine Service 
products are fully documented with a Product User Manuel 
‚PUM) and a Quality Information Document (QUID). 
The Copernicus Marine Service produces Ocean Monitoring 
Indicators (OMIs) and publishes an annual Ocean State 
Report (0SR) (von Schuckmann et. al., this issue) and 
its summary for the scientific community, as well as for 
policy and decision-makers. The OMIs and OSRs rely on 
che unique capability and expertise that the Copernicus 
Marine Service gathers in Europe to analyse and Interpret 
changes in the marine environment and develop science- 
based assessments of the state and health of the ocean. 
Copernicus Marine is a user-driven and policy-driven 
service: users are explicitly and transparently involved 
in the service delivery definition (Delamarche et al., this 
issue). It responds to public and private user needs and 
policies related to all marine and maritime sectors: 
maritime safety, coastal environment monitoring, trade 
and marine navigation, fishery, aquaculture, marine 
renewable energy, marine conservation and biodiversity, 
3cean health, climate and climate adaptation, recreation, 
education, science and innovation (Figure 4). The Marine 
Service directly contributes to European Union marine 
and maritime-related policies and priorities such as 
the Integrated Maritime Policy, the Common Fishery 
Policies and the Marine Strategy Framework Directive. 
"he Copernicus Marine Service provides a core and 
Jeneric service targeting downstream service providers 
‘intermediate users) and serving a wide range of users 
and applications. Details of Copernicus Marine Service 
benefit areas and a series of use cases (more than 200) are 
available on the Copernicus Marine Service website (see 
Abadie et al., this issue). 
The Copernicus Marine Service service desk regularly 
monitors the number and types of users, statistics on 
downloaded products and user satisfaction (Delamarche 
et al, this issue; Giordan et al., this issue). More than 30,000 
users are now registered on the service and a steady 
increase has been observed over the past couple of years 
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