Satellite Application Facility for Numerical Weather Prediction

The NWP SAF aims to improve and support the interface between satellite data/products and European activities in NWP.

The NWP SAF is one of several EUMETSAT SAFs (Satellite Application Facilities). Utilising specialist expertise from the Member States, SAFs are dedicated centres of excellence for processing satellite data and form an integral part of the distributed EUMETSAT Application Ground Segment. Further information about SAFs is available on the EUMETSAT web site.

The SAF for NWP interacts, where appropriate, with related work in other SAFs and in other EUMETSAT activities in order to enhance collaboration and to minimise duplication of effort.

Recent News and Updates

  • Report on Metop-C AMSU-A, MHS and IASI radiance data quality - February 19, 2020
    A report has been released providing an initial quality assessment of the new AMSU-A, MHS and IASI instruments on Metop-C, from a NWP user perspective. The quality of the Metop-C AMSU-A, MHS and IASI observations has been assessed against simulated observations from background model fields, and compared against the same statistics for the currently assimilated Metop-A and -B AMSU-A, MHS and IASI data. These evaluations have been done for two model systems, from the Met Office and DWD. The report can be found on the Radiance data quality assessments page.
  • Help Desk not working - February 14, 2020
    We are experiencing problems with the Help Desk software which is preventing access through the webpages. Exiting tickets still exist and, I believe, may still be updated by replying to emails. If you have any new enquiries that require more immediate attention please email
  • 4th workshop on assimilating satellite cloud and precipitation observations for NWP - February 5, 2020
    A joint NWP SAF/JCSDA workshop on assimilating cloud and precipitation observations for NWP is currently taking place at ECMWF (3-6 February 2020). You can find the full programme for the workshop here. The programme is being populated with links to the presentation slides and recordings as they happen.
  • AAPP v8.5 released - December 6, 2019
    AAPP update 8.5 had been released. The changes include portability fixes and calibration updates. For details, please see the release note.
  • Workshop on the treatment of random and systematic errors in satellite data assimilation for NWP - December 4, 2019
    An NWP SAF workshop on the treatment of random and systematic errors in satellite data assimilation for NWP will be held at ECMWF on 2-5 November 2020. A description of the workshop and link to further information can be found on the Training pages

For older news, see the News Archive.