# \#ads **URL:** https://forum.ecmwf.int/tag/ads/15.md [Latest](https://forum.ecmwf.int/latest.md) · [Categories](https://forum.ecmwf.int/categories.md) · [Tags](https://forum.ecmwf.int/tags.md) --- ## [Data Stores Service protection measures affecting data downloads and account access (CDS/ADS/EWDS/ECDS)](https://forum.ecmwf.int/t/data-stores-service-protection-measures-affecting-data-downloads-and-account-access-cds-ads-ewds-ecds/15481)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 9\ **Last updated:** [5 November 2026 10:44 UTC](https://forum.ecmwf.int/t/data-stores-service-protection-measures-affecting-data-downloads-and-account-access-cds-ads-ewds-ecds/15481 "2026-11-05T10:44:15Z")
We have detected suspicious and abusive activity originating from certain public domains and are implementing additional measures across all ECMWF Data Stores (CDS, ADS, EWDS and ECDS) to protect the integrity and sustai… --- ## [Upcoming ADS Terms of use change](https://forum.ecmwf.int/t/upcoming-ads-terms-of-use-change/15375)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 1\ **Last updated:** [28 October 2026 15:54 UTC](https://forum.ecmwf.int/t/upcoming-ads-terms-of-use-change/15375 "2026-10-28T15:54:17Z")
Please be informed that on Wednesday 28th October 2026, the Terms of use of the Copernicus Atmosphere Data Store will be modified with an update to Art(1) as follows: Article (1) - Description of Products and Services … --- ## [ECMWF APIs (FAQ, API + data documentation)](https://forum.ecmwf.int/t/ecmwf-apis-faq-api-data-documentation/6880)
**Author:** [@Koen\_Hufkens](https://forum.ecmwf.int/u/Koen_Hufkens)\ **Replies:** 8\ **Last updated:** [12 October 2026 12:01 UTC](https://forum.ecmwf.int/t/ecmwf-apis-faq-api-data-documentation/6880 "2026-10-12T12:01:46Z")
Below you find a centralized compilation of key documentation on the new ECMWF APIs as cross-posted from ECMWF API use | BlueGreen Labs. I will only use the CDS as a reference, but the same applies to ADS and EWDS. The … --- ## [Changes to CAMS global biomass burning emissions based on fire radiative power (GFAS) data availability on ADS and ECMWF Data Portal](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 9\ **Last updated:** [5 October 2026 15:38 UTC](https://forum.ecmwf.int/t/changes-to-cams-global-biomass-burning-emissions-based-on-fire-radiative-power-gfas-data-availability-on-ads-and-ecmwf-data-portal/14325 "2026-10-05T15:38:47Z")
As part of our continuous improvement to the CAMS service, some changes will be made to the “CAMS global biomass burning emissions based on fire radiative power (GFAS)” data available from the Atmosphere Data Store (ADS)… --- ## [GFAS 1.4.2 data now available on the ADS](https://forum.ecmwf.int/t/gfas-1-4-2-data-now-available-on-the-ads/15351)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [5 October 2026 12:15 UTC](https://forum.ecmwf.int/t/gfas-1-4-2-data-now-available-on-the-ads/15351 "2026-10-05T12:15:45Z")
Following the announcement in November 2025 of the release of CAMS global biomass burning emissions based on fire radiative power (GFAS) version 1.4.2 on the ECMWF Data Portal (aux.ecmwf.int; SFTP/FTP/HTTPS data access),… --- ## [The CAMS Atmosphere Watch 2026 report is out!](https://forum.ecmwf.int/t/the-cams-atmosphere-watch-2026-report-is-out/15369)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [30 September 2026 11:53 UTC](https://forum.ecmwf.int/t/the-cams-atmosphere-watch-2026-report-is-out/15369 "2026-09-30T11:53:22Z")
We are delighted to announce the publication today, 30 September 2026, of the CAMS Atmosphere Watch 2026 Report. CAMS Atmosphere Watch 2026 report, compiled by the Copernicus Atmosphere Monitoring Service (CAMS) at EC… --- ## [CAMS European air quality forecasts archive data not available on August 10th 2026](https://forum.ecmwf.int/t/cams-european-air-quality-forecasts-archive-data-not-available-on-august-10th-2026/15236)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 1\ **Last updated:** [10 August 2026 18:08 UTC](https://forum.ecmwf.int/t/cams-european-air-quality-forecasts-archive-data-not-available-on-august-10th-2026/15236 "2026-08-10T18:08:40Z")
We would like to inform you that due to a maintenance session CAMS European air quality forecasts archive data will not be available on 10 August 2026 between 7:00 and 12:00 UTC. We apologize in advance for the inconven… --- ## [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… --- ## [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 … --- ## [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… --- ## [Problems with delayed CAMS global atmospheric composition forecasts in ADS](https://forum.ecmwf.int/t/problems-with-delayed-cams-global-atmospheric-composition-forecasts-in-ads/14980)
**Author:** [@Amy\_Stidworthy](https://forum.ecmwf.int/u/Amy_Stidworthy)\ **Replies:** 8\ **Last updated:** [15 June 2026 11:44 UTC](https://forum.ecmwf.int/t/problems-with-delayed-cams-global-atmospheric-composition-forecasts-in-ads/14980 "2026-06-15T11:44:28Z")
It’s currently 14:10 UTC and the CAMS global forecast dataset for today (18th May) is not yet available through the ADS. We expect the forecast to be available by 10:00 UTC each day, as it says on the documentation page,… --- ## [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… --- ## [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… --- ## [Upcoming essential maintenance sessions on Data Stores underlying infrastructure](https://forum.ecmwf.int/t/upcoming-essential-maintenance-sessions-on-data-stores-underlying-infrastructure/14954)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [14 May 2026 09:00 UTC](https://forum.ecmwf.int/t/upcoming-essential-maintenance-sessions-on-data-stores-underlying-infrastructure/14954 "2026-05-14T09:00:00Z")
Please be aware that a planned maintenance session on the Data Stores underlying infrastructure on Tuesday 19th May 2026, from 11:30 to 14:30 UTC next week will affect the normal operation of the Data Stores, e.g. with p… --- ## [Copernicus Atmosphere Monitoring Service (CAMS) - implementation of cycle 50r1](https://forum.ecmwf.int/t/copernicus-atmosphere-monitoring-service-cams-implementation-of-cycle-50r1/14851)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [9 April 2026 10:48 UTC](https://forum.ecmwf.int/t/copernicus-atmosphere-monitoring-service-cams-implementation-of-cycle-50r1/14851 "2026-04-09T10:48:34Z")
ECMWF is planning to introduce the new upgrade of the CAMS (Copernicus Atmosphere Monitoring Service) global real-time data assimilation and forecasting system on 12 May 2026. On the day, the first forecast cycle of CAMS… --- ## [Software upgrade for data extraction of a geographical area from selected CAMS global datasets](https://forum.ecmwf.int/t/software-upgrade-for-data-extraction-of-a-geographical-area-from-selected-cams-global-datasets/14605)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 2\ **Last updated:** [25 February 2026 14:14 UTC](https://forum.ecmwf.int/t/software-upgrade-for-data-extraction-of-a-geographical-area-from-selected-cams-global-datasets/14605 "2026-02-25T14:14:19Z")
On 25th of February 2026, as part of regular operational software upgrades, the software handling area extraction for regular lat-lon gridded datasets will be updated to a new version to correct a behaviour that caused a… --- ## [CAMS Solar Radiation Timeseries new data availability and request limits on ADS](https://forum.ecmwf.int/t/cams-solar-radiation-timeseries-new-data-availability-and-request-limits-on-ads/14735)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [20 February 2026 10:40 UTC](https://forum.ecmwf.int/t/cams-solar-radiation-timeseries-new-data-availability-and-request-limits-on-ads/14735 "2026-02-20T10:40:21Z")
We would like to inform you that the CAMS solar radiation time-series available on the Atmosphere Data Store (ADS) has been updated. The major updates include: User request limitation extended: CAMS Radiation Servic… --- ## [CAMS European air quality interim reanalysis for 2025 now available on the ADS](https://forum.ecmwf.int/t/cams-european-air-quality-interim-reanalysis-for-2025-now-available-on-the-ads/14726)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [16 February 2026 10:44 UTC](https://forum.ecmwf.int/t/cams-european-air-quality-interim-reanalysis-for-2025-now-available-on-the-ads/14726 "2026-02-16T10:44:43Z")
We would like to inform you that the CAMS European air quality interim reanalysis for 2025 is now available from the Atmosphere Data Store (ADS): Users can download data either interactively using the ADS web interfac… --- ## [New version v24r1 for CAMS global inversion-optimised greenhouse gas fluxes and concentrations now available on the ADS](https://forum.ecmwf.int/t/new-version-v24r1-for-cams-global-inversion-optimised-greenhouse-gas-fluxes-and-concentrations-now-available-on-the-ads/14588)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [12 January 2026 09:00 UTC](https://forum.ecmwf.int/t/new-version-v24r1-for-cams-global-inversion-optimised-greenhouse-gas-fluxes-and-concentrations-now-available-on-the-ads/14588 "2026-01-12T09:00:39Z")
We are pleased to inform that the CAMS global inversion-optimised greenhouse gas fluxes and concentrations version v24r1 is now available on the Atmosphere Data Store (ADS): This version has data up to December 2024. U… --- ## [Changes to grib to netCDF converter on CDS-Beta/ADS-Beta](https://forum.ecmwf.int/t/changes-to-grib-to-netcdf-converter-on-cds-beta-ads-beta/4322)
**Author:** [@Kevin\_Marsh](https://forum.ecmwf.int/u/Kevin_Marsh)\ **Replies:** 36\ **Last updated:** [25 December 2025 17:16 UTC](https://forum.ecmwf.int/t/changes-to-grib-to-netcdf-converter-on-cds-beta-ads-beta/4322 "2025-12-25T17:16:25Z")
The new CDS-Beta/ADS-Beta system uses cfgrib for the grib to netCDF conversion. This converter is labelled as “experimental”, as it is still under development. The same convertor is used for direct downloads and post-pr… --- ## [New features released on the Data Stores](https://forum.ecmwf.int/t/new-features-released-on-the-data-stores/14504)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [15 December 2025 00:00 UTC](https://forum.ecmwf.int/t/new-features-released-on-the-data-stores/14504 "2025-12-15T00:00:00Z")
As part of our efforts to improve user experience, some new features have recently been released across all Data Stores (ADS, CDS, and EWDS). These include the following: Option to opt-out/in for being contacted about… --- ## [CAMS global volcanic emissions data from 2005-2021 now available on the ADS](https://forum.ecmwf.int/t/cams-global-volcanic-emissions-data-from-2005-2021-now-available-on-the-ads/14461)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [26 November 2025 16:10 UTC](https://forum.ecmwf.int/t/cams-global-volcanic-emissions-data-from-2005-2021-now-available-on-the-ads/14461 "2025-11-26T16:10:24Z")
We are pleased to inform that the CAMS global volcanic emissions data from 2005-2021 are now available on the Atmosphere Data Store (ADS): Users can download data either interactively using the ADS web interface (down… --- ## [Archive data from CAMS European air quality forecasts unavailable from 17 to 19 November 2025](https://forum.ecmwf.int/t/archive-data-from-cams-european-air-quality-forecasts-unavailable-from-17-to-19-november-2025/14412)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 3\ **Last updated:** [24 November 2025 16:27 UTC](https://forum.ecmwf.int/t/archive-data-from-cams-european-air-quality-forecasts-unavailable-from-17-to-19-november-2025/14412 "2025-11-24T16:27:22Z")
We would like to inform users that archive data from the CAMS European air quality forecasts on the Atmosphere Data Store (ADS) will be unavailable from 17 to 19 November 2025 due to maintenance. The maintenance session… --- ## [Upgrade (U10) to the CAMS European air quality products](https://forum.ecmwf.int/t/upgrade-u10-to-the-cams-european-air-quality-products/14390)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [13 November 2025 16:00 UTC](https://forum.ecmwf.int/t/upgrade-u10-to-the-cams-european-air-quality-products/14390 "2025-11-13T16:00:41Z")
We are pleased to inform CAMS European air quality users that the latest upgrade (U10) to the CAMS European air quality models was successfully implemented on 13-11-2025. The main features introduced in the upgrade incl… --- ## [CAMS European air quality validated reanalysis data for 2023 now available on the ADS](https://forum.ecmwf.int/t/cams-european-air-quality-validated-reanalysis-data-for-2023-now-available-on-the-ads/14393)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [10 November 2025 09:00 UTC](https://forum.ecmwf.int/t/cams-european-air-quality-validated-reanalysis-data-for-2023-now-available-on-the-ads/14393 "2025-11-10T09:00:26Z")
We would like to inform you that the CAMS European air quality validated reanalysis data for 2023 is now available from the Atmosphere Data Store (ADS): Users can download data either interactively using the ADS web in… --- ## [New cdsapi version 0.7.7 released and new API package for advanced users ready to be used](https://forum.ecmwf.int/t/new-cdsapi-version-0-7-7-released-and-new-api-package-for-advanced-users-ready-to-be-used/12806)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 1\ **Last updated:** [1 October 2025 16:06 UTC](https://forum.ecmwf.int/t/new-cdsapi-version-0-7-7-released-and-new-api-package-for-advanced-users-ready-to-be-used/12806 "2025-10-01T16:06:19Z")
As part of improving Data Stores users experience, a new version of the default cdsapi package on Data Stores was released yesterday, 30 September 2025: version 0.7.7. All cdsapi users are strongly recommended to upgrad… --- ## [Scheduled maintenance of the Cloud infrastructure on 22 September 2025](https://forum.ecmwf.int/t/scheduled-maintenance-of-the-cloud-infrastructure-on-22-september-2025/14173)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 1\ **Last updated:** [18 September 2025 13:46 UTC](https://forum.ecmwf.int/t/scheduled-maintenance-of-the-cloud-infrastructure-on-22-september-2025/14173 "2025-09-18T13:46:31Z")
A scheduled essential maintenance of the Cloud infrastructure is planned on Monday 22nd September 2025, from 11 UTC for a maximum time of 2 hours (time window subject to change). During this period, access to the follow… --- ## [CC-BY licence to replace Licence to use Copernicus Products on 02 July 2025](https://forum.ecmwf.int/t/cc-by-licence-to-replace-licence-to-use-copernicus-products-on-02-july-2025/13464)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 7\ **Last updated:** [17 July 2025 09:43 UTC](https://forum.ecmwf.int/t/cc-by-licence-to-replace-licence-to-use-copernicus-products-on-02-july-2025/13464 "2025-07-17T09:43:03Z")
Please be informed that on Wednesday 2nd July 2025, the License to use Copernicus Products in the Climate Data Store (CDS), Atmosphere Data Store (ADS) and the CEMS Early Warning Data Store (EWDS) will be replaced with t… --- ## [CAMS European air quality interim reanalysis for 2024 now available on the ADS](https://forum.ecmwf.int/t/cams-european-air-quality-interim-reanalysis-for-2024-now-available-on-the-ads/13690)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [2 July 2025 09:06 UTC](https://forum.ecmwf.int/t/cams-european-air-quality-interim-reanalysis-for-2024-now-available-on-the-ads/13690 "2025-07-02T09:06:23Z")
We would like to inform you that the CAMS European air quality interim reanalysis for 2024 is now available from the Atmosphere Data Store (ADS): Users can download data either interactively using the ADS web interfa… [Next page](https://forum.ecmwf.int/tag/ads/15.md?match_all_tags=true&page=1&tags%5B%5D=ads)