Sea Surface Temperature

The dual view, nine-channel Sea and Land Surface Temperature Radiometer (SLSTR) measures sea surface temperature, sea surface temperature, land surface temperature, sea-ice and land ice temperature, atmospheric aerosols, cloud properties and fire radiative power.

Sentinel-3 SLSTR Level-1b channel S8 - Red Sea

SLSTR continues the sea surface temperature record collected by the (A)ATSR instruments on ERS and Envisat satellites.

The aim is to collect highly accurate measurements to provide a reference dataset for other sea surface temperature missions on other satellites.

Sea surface temperature data is used as input for weather and ocean forecasting, to observe and monitor ocean current systems and ocean fronts, eddies, upwelling areas, marine ecosystems and the development of large scale El Niño/La Niña events.

Because of the importance of sea surface temperature to the global heat budget it is monitored as an essential climate variable (ECV).

These data are also used to improve understanding of the ocean surface layer, upper ocean variability, energy transfer, air-sea interactions and the impact of changes in the temperature of the ocean surface over the course of the day and changes between the temperature at the ocean surface and the depths below.

SST data is also used to help manage marine ecosystems, e.g. identifying frontal areas with large shoals of fish or monitoring coral bleaching events, and for travel and tourism.

SLSTR products

The products are available in:

  • Near-Real-Time (NRT): products shall be available to the users within three hours after sensing.
  • Non-Time-Critical (NTC): products available to the users within one month after sensing.

We are currently validating the products and will make data available once this process is complete.

To see the full list of Sentinel-3 marine products see our Ocean Products page.

The table below lists the currently available SLSTR products. To see the full list of Sentinel-3 marine products see our Ocean Products page.

Sentinel-3 SLSTR Marine User Handbook

Product notices
Date in operations Processing Baseline version SLSTR L1 product notice L2 SLSTR product notice
04 April 2018 L1: 2.29. L2: 2.33 Sentinel-3A Product Notice – SLSTR Level-1B Sentinel-3A Product Notice – SLSTR Level-2 Sea Surface Temperature
05 July 2017 L1: 2.17. L2: 2.18 Sentinel-3A Product Notice – SLSTR Level-1B Sentinel-3A Product Notice – SLSTR Level-2 Sea Surface Temperature

Sentinel 3 PDGS File Naming Convention

Sea Surface Temperature
Name Instrument Data Access
SLSTR Level 1B Radiances and Brightness Temperatures in NRT - Sentinel-3 SLSTR Copernicus Online Data Access,
EUMETSAT Data Centre
SLSTR Level 1B Radiances and Brightness Temperatures in NTC - Sentinel-3 SLSTR Copernicus Online Data Access,
EUMETSAT Data Centre
SLSTR Sea Surface Temperatures (SST) in NRT - Sentinel-3 SLSTR Copernicus Online Data Access,
EUMETCast-Africa,
EUMETCast-Europe,
EUMETCast-Satellite,
EUMETCast-Terrestrial,
EUMETSAT Data Centre
SLSTR Sea Surface Temperatures (SST) in NTC - Sentinel-3 SLSTR Copernicus Online Data Access,
EUMETSAT Data Centre

How to get SLSTR data

Users need to be registered to get access to the SLSTR products. To do this you need to use our Earth Observation Portal (EOP). To access the Earth Observation Portal (EOP) for the first time, users need to create an account. Once the account has been created, you can log in to view and modify your profile, service subscriptions and licence arrangements.

SLSTR products are available:

All Sentinel data products are distributed using a Sentinel-specific variation of the Standard Archive Format for Europe (SAFE) format specification. The information is contained in a single package, with objects encoded in NetCDF format.

Full details can be found in the Sentinel Formats section of the website.

How to use SLSTR data

The Sentinel-3 Toolbox consists of a rich set of visualisation, analysis and processing tools for the exploitation of SLSTR data.

Watch this video demonstration from our expert Anne O'Carroll.

It will be possible to see imagery from SLSTR on our imagery visualisation tool, EUMETView.

The Sentinel-3 SLSTR User Guide on the ESA website provides a high level description of the available instrument modes and products.

By continuing to use this website, you are giving consent to analytic cookies being used. For more information on how EUMETSAT uses data and how you can disable this, please view this web page: Analytics Cookie Policy