# \#cds **URL:** https://forum.ecmwf.int/tag/cds/50.md [Latest](https://forum.ecmwf.int/latest.md) · [Categories](https://forum.ecmwf.int/categories.md) · [Tags](https://forum.ecmwf.int/tags.md) --- ## [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 … --- ## [Downloading ERA5-Land data via cdsapi takes a long time in the queue](https://forum.ecmwf.int/t/downloading-era5-land-data-via-cdsapi-takes-a-long-time-in-the-queue/15348)
**Author:** [@wanjia\_sun](https://forum.ecmwf.int/u/wanjia_sun)\ **Replies:** 5\ **Last updated:** [9 October 2026 16:47 UTC](https://forum.ecmwf.int/t/downloading-era5-land-data-via-cdsapi-takes-a-long-time-in-the-queue/15348 "2026-10-09T16:47:37Z")
This is my first time using cdsapi to download global daily 2 m temperature data from the “ERA5-Land post-processed daily statistics from 1950 to present” dataset. I submit requests one month at a time, with three reques… --- ## [Upcoming CDS Terms of use change](https://forum.ecmwf.int/t/upcoming-cds-terms-of-use-change/15374)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [5 October 2026 23:00 UTC](https://forum.ecmwf.int/t/upcoming-cds-terms-of-use-change/15374 "2026-10-05T23:00:00Z")
Please be informed that on Wednesday 28th October 2026, the Terms of use of the Copernicus Climate Data Store will be modified with an update to Art(1) as follows: Article (1) - Description of Products and Services The… --- ## [Short video guide on How to use CDS API released!](https://forum.ecmwf.int/t/short-video-guide-on-how-to-use-cds-api-released/15353)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [23 September 2026 16:31 UTC](https://forum.ecmwf.int/t/short-video-guide-on-how-to-use-cds-api-released/15353 "2026-09-23T16:31:31Z")
As part of our ongoing efforts to continuously improve support to our users, we are pleased to announce the release today, 24 September 2026, of a new short video guide on using the Climate Data Store (CDS) API. The vide… --- ## [New dataset published in CDS: CERRA-Land time-series sub-daily regional reanalysis data for Europe from 1984 to present](https://forum.ecmwf.int/t/new-dataset-published-in-cds-cerra-land-time-series-sub-daily-regional-reanalysis-data-for-europe-from-1984-to-present/15321)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [22 September 2026 11:15 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-cerra-land-time-series-sub-daily-regional-reanalysis-data-for-europe-from-1984-to-present/15321 "2026-09-22T11:15:21Z")
We are pleased to announce that a new dataset has been published today, September 2026, in the Climate Data Store (CDS): This dataset is a post-processed version of the original CDS CERRA-Land sub-daily regional rean… --- ## [New dataset published in CDS: Aggregated climate indicators for Europe from 1940 to 2100 derived from reanalysis and multi-model climate projections](https://forum.ecmwf.int/t/new-dataset-published-in-cds-aggregated-climate-indicators-for-europe-from-1940-to-2100-derived-from-reanalysis-and-multi-model-climate-projections/15317)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [8 September 2026 11:42 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-aggregated-climate-indicators-for-europe-from-1940-to-2100-derived-from-reanalysis-and-multi-model-climate-projections/15317 "2026-09-08T11:42:45Z")
We are pleased to announce that a new dataset has been published today, 10th September 2026, in the Climate Data Store (CDS): This dataset provides a series of climate indicators derived products (anomalies, climatolo… --- ## [CDS climate projection datasets temporarily disruptions](https://forum.ecmwf.int/t/cds-climate-projection-datasets-temporarily-disruptions/15293)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 1\ **Last updated:** [1 September 2026 13:38 UTC](https://forum.ecmwf.int/t/cds-climate-projection-datasets-temporarily-disruptions/15293 "2026-09-01T13:38:01Z")
We would like to inform you that due to some technical problems the access to the following CDS climate projection datasets is disrupted: CORDEX regional climate model data on single levels CMIP5 datasets CMIP6 climate… --- ## [Correction to Rotor Diameter values in the PECDv4.2 Product User Guide](https://forum.ecmwf.int/t/correction-to-rotor-diameter-values-in-the-pecdv4-2-product-user-guide/15256)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [17 August 2026 16:00 UTC](https://forum.ecmwf.int/t/correction-to-rotor-diameter-values-in-the-pecdv4-2-product-user-guide/15256 "2026-08-17T16:00:00Z")
A number of typographical errors have been corrected in the Wind Power Conversion Model section of the Pan-European Climate Database (PECD) v4.2 Product User Guide (PUG), specifically in the Rotor Diameter column of Tabl… --- ## [New Jupyter notebooks available in the Copernicus Interactive Climate Atlas (C3S Atlas) User Tools of the :](https://forum.ecmwf.int/t/new-jupyter-notebooks-available-in-the-copernicus-interactive-climate-atlas-c3s-atlas-user-tools-of-the/15238)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [10 August 2026 09:30 UTC](https://forum.ecmwf.int/t/new-jupyter-notebooks-available-in-the-copernicus-interactive-climate-atlas-c3s-atlas-user-tools-of-the/15238 "2026-08-10T09:30:23Z")
We are pleased to announce that 5 new Jupyter notebooks are available for the C3S Atlas User Tools. The User Tools have been developed to enhance transparency and facilitate the reusability of the software developed to … --- ## [New dataset published in CDS: ERA5 time-series data on pressure levels from 1940 to present](https://forum.ecmwf.int/t/new-dataset-published-in-cds-era5-time-series-data-on-pressure-levels-from-1940-to-present/15220)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [7 August 2026 12:00 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-era5-time-series-data-on-pressure-levels-from-1940-to-present/15220 "2026-08-07T12:00:00Z")
We are pleased to announce that a new dataset has been published today, 7th August 2026, in the Climate Data Store (CDS): This dataset is a post-processed version of the original CDS ERA5 hourly data on pressure level… --- ## [Issue affecting some parameters from the ERA5 post-processed daily statistics on single levels](https://forum.ecmwf.int/t/issue-affecting-some-parameters-from-the-era5-post-processed-daily-statistics-on-single-levels/15057)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 12\ **Last updated:** [30 July 2026 10:36 UTC](https://forum.ecmwf.int/t/issue-affecting-some-parameters-from-the-era5-post-processed-daily-statistics-on-single-levels/15057 "2026-07-30T10:36:44Z")
An issue with the computation of some parameters from the ERA5 post-processed daily statistics on single levels from 1940 to present dataset was identified in June 2026. The affected parameters of the ERA5 post-processe… --- ## [New datasets published in the CDS: Multi-model hydrological seasonal forecasts and historical simulations for Europe and Multi-model hydrological seasonal reforecasts for Europe](https://forum.ecmwf.int/t/new-datasets-published-in-the-cds-multi-model-hydrological-seasonal-forecasts-and-historical-simulations-for-europe-and-multi-model-hydrological-seasonal-reforecasts-for-europe/15185)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 3\ **Last updated:** [28 July 2026 16:21 UTC](https://forum.ecmwf.int/t/new-datasets-published-in-the-cds-multi-model-hydrological-seasonal-forecasts-and-historical-simulations-for-europe-and-multi-model-hydrological-seasonal-reforecasts-for-europe/15185 "2026-07-28T16:21:53Z")
We are pleased to announce that new two datasets part of the Copernicus Climate Change Service (C3S) Water Service have been published in the Climate Data Store (CDS): The datasets provide multi-model hydrological s… --- ## [CAMS global atmospheric composition forecasts very slow](https://forum.ecmwf.int/t/cams-global-atmospheric-composition-forecasts-very-slow/15157)
**Author:** [@Alessandro\_D\_Ausilio1](https://forum.ecmwf.int/u/Alessandro_D_Ausilio1)\ **Replies:** 1\ **Last updated:** [20 July 2026 11:49 UTC](https://forum.ecmwf.int/t/cams-global-atmospheric-composition-forecasts-very-slow/15157 "2026-07-20T11:49:09Z")
I am trying to download the cams global forecast data for the year 2025 using the API and it is very slow. One request took 12 hours (“request-id”: “25730c4d-8afc-4bc7-ac01-e567cf9b2239”) I wonder if this is something e… --- ## [New dataset published in the CDS: Snow cover extent from 1982 to present derived from satellite observations](https://forum.ecmwf.int/t/new-dataset-published-in-the-cds-snow-cover-extent-from-1982-to-present-derived-from-satellite-observations/15033)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 2\ **Last updated:** [20 July 2026 09:08 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-the-cds-snow-cover-extent-from-1982-to-present-derived-from-satellite-observations/15033 "2026-07-20T09:08:52Z")
We are pleased to announce the publication of a new Essential Climate Variable (ECV) product from the Cryosphere domain, in the Climate Data Store (CDS) on 02 June 2026: Snow Cover Extent (SCE) provides daily global e… --- ## [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 … --- ## [Future projections SPEI 3](https://forum.ecmwf.int/t/future-projections-spei-3/15125)
**Author:** [@ammara\_talib](https://forum.ecmwf.int/u/ammara_talib)\ **Replies:** 1\ **Last updated:** [9 July 2026 11:46 UTC](https://forum.ecmwf.int/t/future-projections-spei-3/15125 "2026-07-09T11:46:56Z")
Dear C3S/ECMWF Support Team, I am using the “Gridded dataset underpinning the Copernicus Interactive Climate Atlas” from the Climate Data Store for future climate projections. I am interested in downloading SPEI at a 3… --- ## [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).… --- ## [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… --- ## [Issue with Downloading ERA5 Pressure-Level Data via the CDS API](https://forum.ecmwf.int/t/issue-with-downloading-era5-pressure-level-data-via-the-cds-api/15098)
**Author:** [@sim\_seonmi](https://forum.ecmwf.int/u/sim_seonmi)\ **Replies:** 0\ **Last updated:** [24 June 2026 08:01 UTC](https://forum.ecmwf.int/t/issue-with-downloading-era5-pressure-level-data-via-the-cds-api/15098 "2026-06-24T08:01:30Z")
hello. I’m downloading ERA5 vertical profile data using the CDS API, but the download time has become extremely long. I’m using the “derived-era5-pressure-levels-daily-statistics” dataset and need all pressure levels. … --- ## [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… --- ## [10m wind gust since previous post-processing no longer available](https://forum.ecmwf.int/t/10m-wind-gust-since-previous-post-processing-no-longer-available/15056)
**Author:** [@Emmanuel\_KAMLA\_FOTSING](https://forum.ecmwf.int/u/Emmanuel_KAMLA_FOTSING)\ **Replies:** 1\ **Last updated:** [8 June 2026 12:01 UTC](https://forum.ecmwf.int/t/10m-wind-gust-since-previous-post-processing-no-longer-available/15056 "2026-06-08T12:01:43Z")
Hello, the “10m wind gust since previous post-processing” variable is no longer available in the ERA5 post-processed daily statistics for single levels from 1940 to the present. Does anyone know why? --- ## [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… --- ## [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… --- ## [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… [Next page](https://forum.ecmwf.int/tag/cds/50.md?match_all_tags=true&page=1&tags%5B%5D=cds)