Copernicus Online Data Access

The Sentinel-3 Marine Products are available through the Copernicus Online Data Access (CODA) service.

CODA is an online rolling archive with https access to Sentinel-3 Level 1 and Level 2 (Marine) global data in different latency modes, as shown in the following table:

Latency modes Description Time archive
Near Real-Time (NRT) Products available to users within three hours after sensing 1 month
Short time critical (STC) Products available to users within within 48 hours after sensing.
(Only for SRAL products)
Non time critical (NTC) Products available to users within one month after sensing 1 year

How to Access CODA

If you already have an Earth Observation Portal (EO Portal) account, use your account credentials to log into CODA. Go to (please use Chrome or Firefox). Click ‘OK’ to be redirected to the EO Portal login screen.

Alternatively go to, log in and follow the link 'Access CODA'.

If you do not have an EO Portal account, simply create one and follow the link 'Access CODA'.

For more information read the Sentinel 3 Marine Copernicus Data Access User Manual.

Reprocessed data

Sentinel-3A SRAL non time critical (NTC) data has been reprocessed to the latest standards (Processing Baseline 2.15) to allow users to access a consistent dataset from 15 June 2016 to 15 April 2017.

The reprocessed dataset is available via this link: To access it, use your Earth Observation Portal (EOP) credentials or set up an EOP account.

To get the complete and consistent dataset users should access both the Reprocessed NTC dataset, which spans from 15 June 2016–15 April 2017, from CODAREP and the NTC dataset, processed with the same baseline after 15 April 2017, from CODA.

How to visualise Sentinel-3 data

To open and display data use the Sentinel Application Platform (SNAP),

Information on SNAP can be found in the Sentinel-3 toolbox and SNAP online tutorials.

Watch this video demonstration from our Training Manager Mark Higgins.

Other Sentinel-3 videos

How to access Copernicus ocean colour data

How to access Copernicus sea surface temperature data

Atlantic Ocean Colour

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