# OpenIFS Data Hub **URL:** https://forum.ecmwf.int/c/ifs-aifs-and-openifs/openifs-data-hub/47.md [Latest](https://forum.ecmwf.int/latest.md) · [Categories](https://forum.ecmwf.int/categories.md) · [Tags](https://forum.ecmwf.int/tags.md) --- ## [About the OpenIFS Data Hub category](https://forum.ecmwf.int/t/about-the-openifs-data-hub-category/11991)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [20 March 2025 17:50 UTC](https://forum.ecmwf.int/t/about-the-openifs-data-hub-category/11991 "2025-03-20T17:50:05Z")
Welcome to the OpenIFS Data Hub forum! This is your place for asking questions, and engaging with fellow users of the facility to generate initial experiment data and other data products for OpenIFS forecast model exper… --- ## [Hourly relaxation files from Data Hub](https://forum.ecmwf.int/t/hourly-relaxation-files-from-data-hub/14779)
**Author:** [@Jordan\_Seneca](https://forum.ecmwf.int/u/Jordan_Seneca)\ **Replies:** 3\ **Last updated:** [5 October 2026 08:50 UTC](https://forum.ecmwf.int/t/hourly-relaxation-files-from-data-hub/14779 "2026-10-05T08:50:38Z")
By default, the data hub provides four relaxation files per day (one every six hours). Is it possible to request hourly relaxation files from the data hub? Thank you for the help, Jordan Seneca --- ## [Data licensing change for some OpenIFS Data Hub products](https://forum.ecmwf.int/t/data-licensing-change-for-some-openifs-data-hub-products/13468)
**Author:** [@Marcus\_Koehler](https://forum.ecmwf.int/u/Marcus_Koehler)\ **Replies:** 4\ **Last updated:** [28 September 2026 09:03 UTC](https://forum.ecmwf.int/t/data-licensing-change-for-some-openifs-data-hub-products/13468 "2026-09-28T09:03:34Z")
Hi Data Hub users, The OpenIFS Data Hub makes use of Copernicus data products for some of the data it generates (e.g. experiment data based on ERA5 reanalyses). We would like to notify our users about a forthcoming cha… --- ## [Initial state perturbations for ensemble forecasting (OpenIFS-OpenEPS)](https://forum.ecmwf.int/t/initial-state-perturbations-for-ensemble-forecasting-openifs-openeps/14474)
**Author:** [@Sandor\_Istvan\_Maho](https://forum.ecmwf.int/u/Sandor_Istvan_Maho)\ **Replies:** 1\ **Last updated:** [8 December 2025 11:12 UTC](https://forum.ecmwf.int/t/initial-state-perturbations-for-ensemble-forecasting-openifs-openeps/14474 "2025-12-08T11:12:28Z")
Hello, Recently there have been discussion in the joint University of Helsinki - ECMWF meetings that I will investigate the effect of initial state uncertainty in our ensemble simulations. I would like to ask if you co… --- ## [New Data Hub feature: Email notifications](https://forum.ecmwf.int/t/new-data-hub-feature-email-notifications/13079)
**Author:** [@Marcus\_Koehler](https://forum.ecmwf.int/u/Marcus_Koehler)\ **Replies:** 0\ **Last updated:** [15 May 2025 10:28 UTC](https://forum.ecmwf.int/t/new-data-hub-feature-email-notifications/13079 "2025-05-15T10:28:43Z")
Quick announcement for OpenIFS Data Hub users: We will shortly be rolling out a new feature where users get notified by email once their data request has completed (or aborted for any reason). Once this feature is acti… --- ## [New release: Single-column model experiment data now available from the Data Hub](https://forum.ecmwf.int/t/new-release-single-column-model-experiment-data-now-available-from-the-data-hub/13957)
**Author:** [@Marcus\_Koehler](https://forum.ecmwf.int/u/Marcus_Koehler)\ **Replies:** 0\ **Last updated:** [6 August 2025 15:58 UTC](https://forum.ecmwf.int/t/new-release-single-column-model-experiment-data-now-available-from-the-data-hub/13957 "2025-08-06T15:58:31Z")
We are pleased to announce that a new version of the OpenIFS Data Hub has been released on 06 August 2025. This new release now also offers initial experiment and forcing data for the OpenIFS single-column model. The s… --- ## [What is the current status of the Data Hub?](https://forum.ecmwf.int/t/what-is-the-current-status-of-the-data-hub/12161)
**Author:** [@Marcus\_Koehler](https://forum.ecmwf.int/u/Marcus_Koehler)\ **Replies:** 0\ **Last updated:** [28 August 2024 12:45 UTC](https://forum.ecmwf.int/t/what-is-the-current-status-of-the-data-hub/12161 "2024-08-28T12:45:46Z")
This sort of information is available on the Data Hub documentation page, found here: OpenIFS Data Hub. For planned downtimes the box under the heading "Latest Updates" will contain information about when the Data Hub b…