Version 3.1 of the ESA OC-CCI dataset comprises of globally merged MERIS, Aqua-MODIS, SeaWiFS and VIIRS data with associated per-pixel uncertainty information, and has been updated to include data from 2017. The daily data is now extended until the 13^th November 2017, and hence monthly data to October 2017.

We have stopped short of the full year due to the change in the status of MODIS-Aqua data – it is considered "Quicklook" for up to 90 days from collection due to the rapidly changing temporal calibration, which means NASA needs to make adjustments on a monthly basis (see https://oceancolor.gsfc.nasa.gov/forum/oceancolor/topic_show.pl?tid=7817).

For details on how to access the data, see http://www.esa-oceancolour-cci.org/?q=products%20description

To ask any questions, contact help@esa-oceancolour-cci.org

A User Showcase page has been create to demonstrate some of the applications of the OC-CCI data.

There are several options, including FTP and a Composite Browser, which are available via http://www.oceancolour.org/ and explained further within the Frequently Asked Questions (FAQ) section of this website at http://esa-oceancolour-cci.org/?q=faq If you need information about the products, then the best document to start with is the Product User Guide (PUG) http://www.esa-oceancolour-cci.org/?q=webfm_send/684

In addition, support is available from help@esa-oceancolour-cci.org

We suggest that when referencing the Ocean Colour CCI dataset within peer-reviewed papers or any other publications the following citation is given in the acknowledgements, alongside any description within the methodology.

• Version 1-0 see http://catalogue.ceda.ac.uk/uuid/f1a4a1d1208244c682603502d554bc12
• Version 2-0 see http://catalogue.ceda.ac.uk/uuid/58268d53f02942fd9951bee50360b893
• Version 3-1 see http://catalogue.ceda.ac.uk/uuid/9c334fbe6d424a708cf3c4cf0c6a53f5

We would also like to be notified so that we can list publications within the project website at http://www.esa-oceancolour-cci.org/?q=publications

In addition, the 2015 compilation of the in situ data (Valente et al. 2016) is available from https://doi.pangaea.de/10.1594/PANGAEA.854832