# Announcements **URL:** https://forum.ecmwf.int/c/announcements/5.md?page=1 [Latest](https://forum.ecmwf.int/latest.md) · [Categories](https://forum.ecmwf.int/categories.md) · [Tags](https://forum.ecmwf.int/tags.md) **Page:** 2 --- ## [Temporary closure of Data Stores Service ahead of Emergency System Session on Monday 20th July 2026](https://forum.ecmwf.int/t/temporary-closure-of-data-stores-service-ahead-of-emergency-system-session-on-monday-20th-july-2026/15163)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [16 July 2026 13:30 UTC](https://forum.ecmwf.int/t/temporary-closure-of-data-stores-service-ahead-of-emergency-system-session-on-monday-20th-july-2026/15163 "2026-07-16T13:30:39Z")
Ahead of an emergency system session on Monday 20 July 2026 affecting the underlaying infrastructure, the Data Stores services (CDS, ADS, EWDS, ECDS) will stop accepting new requests from 7am UTC until the system session… --- ## [Changes with the Essential climate variables for assessment of climate variability from 1979 to present dataset](https://forum.ecmwf.int/t/changes-with-the-essential-climate-variables-for-assessment-of-climate-variability-from-1979-to-present-dataset/14890)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 1\ **Last updated:** [14 July 2026 10:34 UTC](https://forum.ecmwf.int/t/changes-with-the-essential-climate-variables-for-assessment-of-climate-variability-from-1979-to-present-dataset/14890 "2026-07-14T10:34:59Z")
We are hereby informing users of the Essential climate variables for assessment of climate variability from 1979 to present dataset, that access to the ERA-interim data source is discontinued, as of today 1st May 2026. … --- ## [New features implemented for CORDEX regional climate model data on single levels on the CDS](https://forum.ecmwf.int/t/new-features-implemented-for-cordex-regional-climate-model-data-on-single-levels-on-the-cds/15145)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [9 July 2026 15:00 UTC](https://forum.ecmwf.int/t/new-features-implemented-for-cordex-regional-climate-model-data-on-single-levels-on-the-cds/15145 "2026-07-09T15:00:00Z")
We are pleased to announce that an improvement to the CORDEX regional climate model data on single levels dataset catalogue entry on the Climate Data Store (CDS) has been implemented today, 9th July 2026, to add spatial … --- ## [ARCO Data Lake coming soon for the Data Stores Services!](https://forum.ecmwf.int/t/arco-data-lake-coming-soon-for-the-data-stores-services/14174)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 2\ **Last updated:** [8 July 2026 13:38 UTC](https://forum.ecmwf.int/t/arco-data-lake-coming-soon-for-the-data-stores-services/14174 "2026-07-08T13:38:43Z")
As part of its effort to continuously improve the quality of service offered to users, the Data Stores Services (DSS) at ECMWF is setting up an “ARCO Data Lake”. ARCO (Analysis-Ready Cloud-Optimised) data structures can … --- ## [Global Interpolated RAinFall Estimation (GIRAFE) satellite precipitation data up to December 2024 now available on CDS](https://forum.ecmwf.int/t/global-interpolated-rainfall-estimation-girafe-satellite-precipitation-data-up-to-december-2024-now-available-on-cds/15138)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [7 July 2026 16:54 UTC](https://forum.ecmwf.int/t/global-interpolated-rainfall-estimation-girafe-satellite-precipitation-data-up-to-december-2024-now-available-on-cds/15138 "2026-07-07T16:54:04Z")
We are pleased to announce that the temporal extension for the Daily and monthly Global Interpolated RAinFall Estimation (GIRAFE) data derived from satellite observations is now available on the Climate Data Store (CDS).… --- ## [Methane Hotspot Explorer updated with new improved algorithm](https://forum.ecmwf.int/t/methane-hotspot-explorer-updated-with-new-improved-algorithm/15124)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [30 June 2026 12:30 UTC](https://forum.ecmwf.int/t/methane-hotspot-explorer-updated-with-new-improved-algorithm/15124 "2026-06-30T12:30:33Z")
We are pleased to announce that the algorithm behind the Methane Hotspot Explorer was updated to v1.2 for detections made on and after June 21, 2026. This version introduces updates to two key components (An improved… --- ## [Access to our ARCO ERA5 data lake / Zarr store](https://forum.ecmwf.int/t/access-to-our-arco-era5-data-lake-zarr-store/15123)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [30 June 2026 12:06 UTC](https://forum.ecmwf.int/t/access-to-our-arco-era5-data-lake-zarr-store/15123 "2026-06-30T12:06:43Z")
As part of our expansion of our product offerings based on ARCO (Analysis Ready Cloud Optimized) capabilities, we are pleased to announce direct tokenized access to ERA5 and ERA5-Land data cubes. In our CDS catalogue of… --- ## [Glaciers distribution data from the Randolph Glacier Inventory for year 2000 dataset improved version of RGIv7.0 published](https://forum.ecmwf.int/t/glaciers-distribution-data-from-the-randolph-glacier-inventory-for-year-2000-dataset-improved-version-of-rgiv7-0-published/15101)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [30 June 2026 10:42 UTC](https://forum.ecmwf.int/t/glaciers-distribution-data-from-the-randolph-glacier-inventory-for-year-2000-dataset-improved-version-of-rgiv7-0-published/15101 "2026-06-30T10:42:00Z")
We are pleased to announce today the publication of an improved version of the Randolph Glacier Inventory v7.0 (RGI v7.0), which is a world inventory of curated glacier outlines. It is directly accessible from the Climat… --- ## [Disruption to ECMWF services due to power outage](https://forum.ecmwf.int/t/disruption-to-ecmwf-services-due-to-power-outage/15120)
**Author:** [@Kevin\_Marsh](https://forum.ecmwf.int/u/Kevin_Marsh)\ **Replies:** 0\ **Last updated:** [29 June 2026 09:57 UTC](https://forum.ecmwf.int/t/disruption-to-ecmwf-services-due-to-power-outage/15120 "2026-06-29T09:57:32Z")
Yesterday (28/06/2026) there was a power outage at our Bologna site which has affected a number of ECMWF services, including Dissemination, MARS (WebAPI) and the Data Stores. As of 29/06/2026, the majority of services h… --- ## [Relative index in ENSO forecasts from C3S seasonal forecast systems](https://forum.ecmwf.int/t/relative-index-in-enso-forecasts-from-c3s-seasonal-forecast-systems/15110)
**Author:** [@Eduardo\_Penabad](https://forum.ecmwf.int/u/Eduardo_Penabad)\ **Replies:** 0\ **Last updated:** [26 June 2026 09:56 UTC](https://forum.ecmwf.int/t/relative-index-in-enso-forecasts-from-c3s-seasonal-forecast-systems/15110 "2026-06-26T09:56:06Z")
Following practice at several international operational centres, and recommendations from WMO, we have introduced a relative index to describe the ENSO state in forecasts, as well as in monitoring. Details of the definit… --- ## [New graphical product in the C3S seasonal forecasts component: ENSO percentile plots](https://forum.ecmwf.int/t/new-graphical-product-in-the-c3s-seasonal-forecasts-component-enso-percentile-plots/1618)
**Author:** [@Eduardo\_Penabad](https://forum.ecmwf.int/u/Eduardo_Penabad)\ **Replies:** 14\ **Last updated:** [26 June 2026 07:37 UTC](https://forum.ecmwf.int/t/new-graphical-product-in-the-c3s-seasonal-forecasts-component-enso-percentile-plots/1618 "2026-06-26T07:37:22Z")
We are pleased to announce that with the release of December 2023 forecasts (10th December 2023) a new view of the SST indices time series have been included for the ENSO regions in the C3S seasonal graphical products. h… --- ## [CAMS global reanalysis (EAC4) data from September to December 2025 now available on the ADS](https://forum.ecmwf.int/t/cams-global-reanalysis-eac4-data-from-september-to-december-2025-now-available-on-the-ads/15099)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [24 June 2026 13:00 UTC](https://forum.ecmwf.int/t/cams-global-reanalysis-eac4-data-from-september-to-december-2025-now-available-on-the-ads/15099 "2026-06-24T13:00:18Z")
We are happy to inform our CAMS users that the CAMS global reanalysis (EAC4) data from September to December 2025 are now available from the Atmosphere Data Store (ADS) at: CAMS global reanalysis (EAC4) CAMS global rea… --- ## [CAMS European air quality validated reanalysis for 2024 now available on the ADS](https://forum.ecmwf.int/t/cams-european-air-quality-validated-reanalysis-for-2024-now-available-on-the-ads/15100)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [24 June 2026 11:30 UTC](https://forum.ecmwf.int/t/cams-european-air-quality-validated-reanalysis-for-2024-now-available-on-the-ads/15100 "2026-06-24T11:30:16Z")
We would like to inform you that the CAMS European air quality validated reanalysis for 2024 is now available from the Atmosphere Data Store (ADS): Users can download data either interactively using the ADS web interf… --- ## [Expanded access to the WMO Support Dataset on ECMWF Dissemination Data Store](https://forum.ecmwf.int/t/expanded-access-to-the-wmo-support-dataset-on-ecmwf-dissemination-data-store/15088)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [19 June 2026 10:30 UTC](https://forum.ecmwf.int/t/expanded-access-to-the-wmo-support-dataset-on-ecmwf-dissemination-data-store/15088 "2026-06-19T10:30:47Z")
On 10 June 2026 ECMWF has expanded access to its WMO Support Dataset, making it available to all World Meteorological Organization (WMO) Members. The dataset provides a core set of ECMWF forecast fields for use in limit… --- ## [AgERA5 version 1.1 to be deprecated, please use AgERA5 version 2 (if not already)](https://forum.ecmwf.int/t/agera5-version-1-1-to-be-deprecated-please-use-agera5-version-2-if-not-already/14940)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 1\ **Last updated:** [18 June 2026 15:57 UTC](https://forum.ecmwf.int/t/agera5-version-1-1-to-be-deprecated-please-use-agera5-version-2-if-not-already/14940 "2026-06-18T15:57:26Z")
To the attention of users of AgERA5 version 1.1: AgERA5 version 1.1 is superseded by AgERA5 version 2, published in May 2025, which was fully reprocessed and fixes the Rogue Tmin-24h values as well as the Tmean \> Tmax i… --- ## [C3S User Satisfaction Survey](https://forum.ecmwf.int/t/c3s-user-satisfaction-survey/13399)
**Author:** [@Karen\_ORegan](https://forum.ecmwf.int/u/Karen_ORegan)\ **Replies:** 0\ **Last updated:** [10 June 2025 15:41 UTC](https://forum.ecmwf.int/t/c3s-user-satisfaction-survey/13399 "2025-06-10T15:41:37Z")
To improve our Copernicus Climate Change Service (C3S), we need to hear your feedback! Please complete the following very short survey for C3S: C3S User Satisfaction Survey Thank you! --- ## [Upcoming essential maintenance sessions on Data Stores underlying infrastructure - Part 2](https://forum.ecmwf.int/t/upcoming-essential-maintenance-sessions-on-data-stores-underlying-infrastructure-part-2/15041)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [9 June 2026 23:00 UTC](https://forum.ecmwf.int/t/upcoming-essential-maintenance-sessions-on-data-stores-underlying-infrastructure-part-2/15041 "2026-06-09T23:00:00Z")
As a follow up event of the system upkeep on last 19th May 2026, there is another planned maintenance session on the Data Stores underlying infrastructure on Monday 15th June 2026, from 11:30 to 14:30 UTC which may poten… --- ## [New version 2.5 of the Copernicus Interactive Climate Atlas viewer and related dataset](https://forum.ecmwf.int/t/new-version-2-5-of-the-copernicus-interactive-climate-atlas-viewer-and-related-dataset/15025)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [2 June 2026 13:00 UTC](https://forum.ecmwf.int/t/new-version-2-5-of-the-copernicus-interactive-climate-atlas-viewer-and-related-dataset/15025 "2026-06-02T13:00:54Z")
We are pleased to announce that the new version (v2.5) of the Copernicus Interactive Climate Atlas (C3S Atlas) viewer and related dataset have been published on the Climate Data Store (CDS). The new version of the vie… --- ## [New datasets published in CDS: Global climate and energy indicators from 1950 to present derived from reanalysis](https://forum.ecmwf.int/t/new-datasets-published-in-cds-global-climate-and-energy-indicators-from-1950-to-present-derived-from-reanalysis/15026)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [2 June 2026 10:30 UTC](https://forum.ecmwf.int/t/new-datasets-published-in-cds-global-climate-and-energy-indicators-from-1950-to-present-derived-from-reanalysis/15026 "2026-06-02T10:30:03Z")
We are pleased to announce the publication of the new Global climate and energy indicators from 1950 to present derived from reanalysis, in the Climate Data Store (CDS) on 02 June 2026: This dataset provides global cl… --- ## [New dataset published in CDS: Agrometeorological indicators time-series from 1979 to present derived from reanalysis](https://forum.ecmwf.int/t/new-dataset-published-in-cds-agrometeorological-indicators-time-series-from-1979-to-present-derived-from-reanalysis/15021)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [1 June 2026 13:00 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-agrometeorological-indicators-time-series-from-1979-to-present-derived-from-reanalysis/15021 "2026-06-01T13:00:35Z")
We are pleased to announce that a new dataset has been published today, 01-06-2026, in the Climate Data Store (CDS): This dataset is a post-processed version of the original CDS Agrometeorological indicators from 1979… --- ## [Open Data download options](https://forum.ecmwf.int/t/open-data-download-options/15029)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [29 May 2026 11:00 UTC](https://forum.ecmwf.int/t/open-data-download-options/15029 "2026-05-29T11:00:38Z")
With the implementation of IFS Cycle 50r1 and AIFS v2, there was a significant increase in requests for Open and Free Data from ECMWF. While usage quickly returned to normal, we remind users that those data are also avai… --- ## [Pre-schedule delivery updates after IFS Cycle 50r1 implementation](https://forum.ecmwf.int/t/pre-schedule-delivery-updates-after-ifs-cycle-50r1-implementation/15028)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [29 May 2026 11:00 UTC](https://forum.ecmwf.int/t/pre-schedule-delivery-updates-after-ifs-cycle-50r1-implementation/15028 "2026-05-29T11:00:38Z")
During the implementation of the models’ upgrade, we updated the production chain to incorporate new parameters and observations. This has increased the overall model run time and the subsequent processing required to ge… --- ## [CAMS global reanalysis (EAC4) data from January to August 2025 now available on the ADS](https://forum.ecmwf.int/t/cams-global-reanalysis-eac4-data-from-january-to-august-2025-now-available-on-the-ads/14658)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 2\ **Last updated:** [29 May 2026 09:15 UTC](https://forum.ecmwf.int/t/cams-global-reanalysis-eac4-data-from-january-to-august-2025-now-available-on-the-ads/14658 "2026-05-29T09:15:27Z")
We are happy to inform our CAMS users that the CAMS global reanalysis (EAC4) data from January to August 2025 are now available from the Atmosphere Data Store (ADS) at: CAMS global reanalysis (EAC4) CAMS global reanaly… --- ## [New version 3.0.0 of the Global land surface atmospheric variables from comprehensive in-situ observations now available on CDS](https://forum.ecmwf.int/t/new-version-3-0-0-of-the-global-land-surface-atmospheric-variables-from-comprehensive-in-situ-observations-now-available-on-cds/14892)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [28 May 2026 15:30 UTC](https://forum.ecmwf.int/t/new-version-3-0-0-of-the-global-land-surface-atmospheric-variables-from-comprehensive-in-situ-observations-now-available-on-cds/14892 "2026-05-28T15:30:11Z")
We are pleased to announce that the new version 3.0.0 of the Global land surface atmospheric variables from 1718 to present from comprehensive in-situ observations dataset has been published on the Climate Data Store (CD… --- ## [Upcoming changes to ECMWF interfaces](https://forum.ecmwf.int/t/upcoming-changes-to-ecmwf-interfaces/15027)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [28 May 2026 15:19 UTC](https://forum.ecmwf.int/t/upcoming-changes-to-ecmwf-interfaces/15027 "2026-05-28T15:19:48Z")
ECMWF has implemented an updated ECPDS user interface. Many of you will have seen this during the past few weeks as an optional test interface. ECMWF Support is working on updating all documentation and support informati… --- ## [S2S and TIGGE access method](https://forum.ecmwf.int/t/s2s-and-tigge-access-method/15020)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [27 May 2026 15:50 UTC](https://forum.ecmwf.int/t/s2s-and-tigge-access-method/15020 "2026-05-27T15:50:45Z")
We are pleased to announced that the access method for the S2S and TIGGE datasets is transitioned to the new ECMWF Data Store (ECDS) opened on Tuesday, 9 UTC, 21 April 2026. The WEB-API access has been decommissioned o… --- ## [UEF 2026: Extreme Temperature Theme](https://forum.ecmwf.int/t/uef-2026-extreme-temperature-theme/14819)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 1\ **Last updated:** [27 May 2026 15:09 UTC](https://forum.ecmwf.int/t/uef-2026-extreme-temperature-theme/14819 "2026-05-27T15:09:34Z")
We would love to see more of our users at this year’s Using ECMWF’s Forecasts (UEF) workshop — and there’s still time to get involved! UEF2026 takes place in person at ECMWF’s Reading site from 1–4 June 2026. The event … --- ## [CARRA2 full historical period from 1986 to 2025 now available on the CDS](https://forum.ecmwf.int/t/carra2-full-historical-period-from-1986-to-2025-now-available-on-the-cds/14998)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [27 May 2026 10:00 UTC](https://forum.ecmwf.int/t/carra2-full-historical-period-from-1986-to-2025-now-available-on-the-cds/14998 "2026-05-27T10:00:34Z")
We are happy to inform you that the Copernicus pan-Arctic Regional Reanalysis (CARRA2) dataset had been extended to a full historical Arctic climate monitoring dataset covering the period 1986-2025 and it is now availabl… --- ## [IFS Cycle 50r1 and AIFS v2 - Implementation planned for 12 May 2026](https://forum.ecmwf.int/t/ifs-cycle-50r1-and-aifs-v2-implementation-planned-for-12-may-2026/14781)
**Author:** [@Milana\_Vuckovic](https://forum.ecmwf.int/u/Milana_Vuckovic)\ **Replies:** 22\ **Last updated:** [22 May 2026 15:32 UTC](https://forum.ecmwf.int/t/ifs-cycle-50r1-and-aifs-v2-implementation-planned-for-12-may-2026/14781 "2026-05-22T15:32:21Z")
We are pleased to confirm that good progress is being made towards the joint operational implementation of IFS Cycle 50r1, AIFS Single v2 and AIFS ENS v2, and the implementation is planned for 12 May 2026. The date will … --- ## [New version 3.0 of the of near surface meteorological variables derived from bias-corrected ERA5 (WFDE5) and new companion dataset (W5E5) now available on CDS](https://forum.ecmwf.int/t/new-version-3-0-of-the-of-near-surface-meteorological-variables-derived-from-bias-corrected-era5-wfde5-and-new-companion-dataset-w5e5-now-available-on-cds/14956)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [15 May 2026 10:30 UTC](https://forum.ecmwf.int/t/new-version-3-0-of-the-of-near-surface-meteorological-variables-derived-from-bias-corrected-era5-wfde5-and-new-companion-dataset-w5e5-now-available-on-cds/14956 "2026-05-15T10:30:24Z")
We are pleased to announce that the new version 3.0 of the Near surface meteorological variables from 1979 to 2019 derived from bias-corrected reanalysis (WFDE5) dataset and its new companion dataset (W5E5) have been pub… [Previous page](https://forum.ecmwf.int/c/announcements/5.md) [Next page](https://forum.ecmwf.int/c/announcements/5.md?page=2)