Update of the Copernicus Sentinel-3 SLSTR NRT FRP product


An update of the SLSTR NRT FRP product, consisting in removing twilight in the high latitude areas, will be deployed on 16 July 2020.

Last Updated

21 January 2021

Published on

09 July 2020

Monitoring fire hazards and their potential threat on population and ecosystems in the high latitude is very important. The dramatic fires in Siberia, due to drought and very high temperature, are one of the multiple examples.

To enhance the capability of the Copernicus Sentinel-3 SLSTR Near Real Time (NRT) Fire Radiative Power (FRP) product, released by EUMETSAT and based on the processor v2.0, the screening of twilight residuals by night has been lately improved for both FRP MWIR and SWIR variables. This is done by a finer adjustment of a Solar angle threshold through the update of the Auxiliary Data Files (no other changes on the product format or processor code).

 Example product
Figure 1: Example product

As a result, the quality of the fire monitoring in the high northern latitude by night, such as over Siberia, or Canada, by the Copernicus Sentinel-3 SLSTR NRT FRP product is enhanced, with much reduced ambiguity with respect to potential twilight residual. Figure 1 is an example of the SLSTR NRT FRP MWIR over Siberia from 23 June 2020.

This change is associated with the NRT FRP IPF Processor v2.0, Baseline Collection 1, Processing Baseline (PB) 2.69-MARINE.

More information on the Copernicus Sentinel-3 SLSTR NRT FRP product, procured by EUMETSAT and entrusted by the European Commission (EC), can be found on the following links:

Data access, Product note, and other documentation
Operational algorithm webpage
METIS S3 NRT FRP - Daily plots monitoring hot-spot situation worldwide and regionally

For more information contact our User Service Helpdesk.