# Help shape the future of ERA5 reanalysis data

**URL:** <https://forum.ecmwf.int/t/help-shape-the-future-of-era5-reanalysis-data/15164>\
**Category:** Feedback and requirements\
**Tags:** c3s, era5\
**Created:** [15 July 2026 13:57 UTC](https://forum.ecmwf.int/t/help-shape-the-future-of-era5-reanalysis-data/15164 "2026-07-15T13:57:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Anabelle](https://forum.ecmwf.int/user_avatar/forum.ecmwf.int/anabelle/32/360_2.png) [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\
**Post date:** [15 July 2026 13:57 UTC](https://forum.ecmwf.int/t/help-shape-the-future-of-era5-reanalysis-data/15164/1 "2026-07-15T13:57:39Z")

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![email-header-image](https://forum.ecmwf.int/uploads/default/original/2X/c/ca165163754d7941385216ec09264e64c3fc0794.jpeg)

Do you use ERA5 for research, operational activities, decision-making, education or commercial applications?

We would like to hear about your experience. This short survey aims to understand how ERA5 data are used in practice, which datasets and parameters matter most, and how future reanalysis products, services and Evaluation and Quality Control (EQC) information can better support the C3S user community.

The **survey** takes around 10 minutes and is **open until 4 September 2026**.

👉 **[Take the survey](https://gbr01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fec.europa.eu%2Feusurvey%2Frunner%2FC3S_Reanalysis&data=05%7C02%7Canabelle.menochet%40ecmwf.int%7C5dea2b60755543f479ea08dee109ae65%7C21b711c6aab74d369ffbac0357bc20ba%7C1%7C0%7C639195629301190093%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=qDtrRswRO2etSs2wMky7tRwKgSAgF46qEHQH9cpH1u4%3D&reserved=0 "Original URL: https://ec.europa.eu/eusurvey/runner/C3S\_Reanalysis. Click or tap if you trust this link.")**

Your feedback will help guide future developments of ERA5 data and related C3S services.

Thank you for your contribution.

ECMWF Support  
on behalf of the ECMWF EQC Survey team

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<div class="post-metadata">

**Author:** ![Anabelle](https://forum.ecmwf.int/user_avatar/forum.ecmwf.int/anabelle/32/360_2.png) [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\
**Post date:** [27 August 2026 11:16 UTC](https://forum.ecmwf.int/t/help-shape-the-future-of-era5-reanalysis-data/15164/2 "2026-08-27T11:16:42Z")

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Last chance to submit your feedback to help shape the future of ERA5 reanalysis data! Survey is **closing on 4th of September 202** 6!

👉 **[Take the survey](https://ec.europa.eu/eusurvey/runner/C3S_Reanalysis)**

Many thanks!

ECMWF Support  
on behalf of the ECMWF EQC Survey team