Copernicus Marine Service
OC-TAC - Quality Control and Validation


This Website has been developed in the framework of the Copernicus Marine Environment Monitoring Service (CMEMS).
This website reports part of the NRT quality product activities of the Ocean Colour Thematic Assembly Centre (OC-TAC).

The OC-TAC implement a Ocean Colour (OC) Service for Copernicus marine applications providing Global and regional (Atlantic, Arctic, Baltic, Mediterranean, and Black Seas) high quality core OC products based on Satellite observations. OC-TAC products are currently used by European, National and regional level intermediate/end users (intergovernmental bodies, National Environmental Agencies, ESA and European Projects etc.) to monitor marine conditions and are acquired by the CMEMS MFCs for ecosystem model assimilation/validation.
The NRT service for Ocean Colour based on Satellite Observations relies on 3 production centres:

  • ACRI-ST for the Global area,
  • CNR for Baltic, Mediterranean, and Black Seas
  • PML for Atlantic and Arctic


To monitor the quality of the Near Real Time (NRT) products, daily results are reported on this web site:

  • Upstream:
    • the level-2 upstream data coming from spatial agencies are systematically inter-compared. Synthetic maps and plots are daily generated (Upstream/Assessement)
    • the acquisition/processing status of level-2 is reported (Upstream/Coverage)
  • The output products (a) are inter-compared to a climatology:
  • The output products (a) are used to compute Ocean Monitoring Indicators (OMIs). At present, the following experimental OMIs are computed by the OC-TAC:
  • Insitu bio-argo comparison (Insitu Bio-Argo Comparison)
  • Main events having an impact on the OC products are reported (Events)
  • If you have any questions, you can contact servicedesk.cmems@acri-st.fr


    How to access the Copernicus Marine Service Satellite Ocean Colour products?

    You should register on the Copernicus Marine Service http://marine.copernicus.eu. Then the access to the products is free.
    Satellite Ocean Colour products are covering the period 1997 to present and are daily updated and are organised in about 50 datasets depending region and type of products.
    The Copernicus Marine service products are available from the online catalogue.
    You can easily identify the Ocean Colour product using the keyword "OCEANCOLOUR" in the search panel.


    What is the Copernicus Marine Service?

    This Copernicus Marine Service provides regular and systematic reference information on the physical state and on marine ecosystems for the global ocean and the European regional seas (temperature, currents, salinity, sea surface height, sea ice, marine optics, nutrients, etc.).
    This capacity encompasses satellite and in-situ observation-derived products, the description of the current situation (analysis), the prediction of the situation a few days ahead (forecast), and the provision of consistent retrospective data records for recent years (re-analysis).
    The Copernicus Marine Environment Monitoring Service is designed to serve many public, commercial and scientific purposes including major EU policies such as the Marine Strategy Framework Directive, combating pollution, protection of marine species, maritime safety and routing, sustainable exploitation of ocean resources, marine energy resources, climate monitoring and hurricane forecasting.
    The existing pilot scheme of the Service has been under development since 2009 on the basis of a series of EU research projects (the MyOcean series) coordinated by Mercator Ocean and involving more than 60 partners .


    Mentions and Credits:

    (a) “Generated using E.U. Copernicus Marine Service Information”
    (b): “E.U. Copernicus Marine Service Information”