Sea and Land Surface Temperature Radiometer (SLSTR)
22 Feb 2012



The Sea and Land Surface Temperature Radiometer (SLSTR) on the ESA/EU GMES Sentinel-3 mission will provide highly accurate measurements of global Earth surface temperatures.

Artist's impression of Sentinel-3

​​​​​​​Artist's impression: Sentinel-3

(Credit: ESA/J.Huart)
Data from SLSTR continues the sea surface temperature (SST) records provided by the successful Along Track Scanning Radiometer (ATSR) series. As with ATSR, the principle design feature is a conical scanning geometry that provides two views of the Earth at different view angles to enable accurate atmospheric correction. SLSTR builds on the concept by incorporating a wider swath to improve the global coverage and incorporates additional spectral channels to improve cloud detection and forest fire detection.

The design concept for SLSTR, was originally proposed from studies undertaken by RAL Space and Thales. It was developed for flight by the instrument prime contractor Selex Galileo (Italy). RAL Space scientists and engineers played a key role in the development of the instrument design, its calibration and the definition of the data products and processing algorithms. A dedicated facility was been built at RAL Space for the pre-flight calibration activities, essential for SLSTR providing accurate and traceable measurements.

Further project information

For more information please email: RAL Space ​Enquiries