Feedback on the EFAS Post-processed forecast developments

You are being invited to complete this questionnaire as you are an EFAS Partner. This questionnaire is part of a research project about the post processed forecast product of the EFAS. For your reference, an example of the EFAS post-processed forecast product from EFAS version 4 is shown below.
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The project is being conducted by the European Centre for Medium-range Weather Forecasts (ECMWF) who are contracted to fulfil the obligations of the CEMS Hydrological Forecast Computational Centre (COMP), and the University of Reading. The aims of the project are:

  • To investigate the impact of recent developments to the EFAS post-processed forecasts.
  • To identify any further future improvements.
  • To identify how the user feedback can be more effectively incorporated into the EFAS system.

The EFAS post-processed forecasts have been developed based on the discussions in the dedicated workshop at the 17th EFAS Annual Meeting in September 2022. These changes include:

  • the inclusion of provider discharge thresholds,
  • a new ‘post-processing’ tab in the reporting point layer, and
  • new data tables containing information related to the post-processed forecasts.

The following questions will ask for your opinion on these developments, any further improvements to the post-processed forecasts that you would like to see implemented, and the methods used to collect feedback from EFAS Partners.

This questionnaire is anonymous. Responses to this questionnaire will be analysed and used to improve EFAS in the future and included in a PhD thesis. You do not have to participate in this project if you do not wish. However, your contribution will be beneficial in making this product more useful. If you do decide to take part you will be free to withdraw at any time during the EFAS Annual Meeting without providing a reason, and with no negative consequences. Unfortunately, after the EFAS Annual Meeting it will not be possible to remove your data from the analysis as all data will be anonymised. More information about this project is available in the Participant Information Sheet which Is available from the EFAS post-processing stand during the 18th EFAS Annual Meeting or can be requested by email from If you have any questions or concerns regarding this questionnaire or the project, please contact Gwyneth Matthews from the CEMS Hydrological Forecast Computational Centre at

By continuing you give your informed consent to be part of this work and agree that your responses can be stored and analysed for the above stated reasons.

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