# \#zarr **URL:** https://forum.ecmwf.int/tag/zarr/337.md [Latest](https://forum.ecmwf.int/latest.md) · [Categories](https://forum.ecmwf.int/categories.md) · [Tags](https://forum.ecmwf.int/tags.md) --- ## [New dataset published in CDS: ERA5 hourly time-series data on single levels from 1940 to present](https://forum.ecmwf.int/t/new-dataset-published-in-cds-era5-hourly-time-series-data-on-single-levels-from-1940-to-present/11919)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 21\ **Last updated:** [15 October 2026 13:59 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-era5-hourly-time-series-data-on-single-levels-from-1940-to-present/11919 "2026-10-15T13:59:56Z")
We are pleased to announce that a new dataset has been published today, 18 March 2025, in the Climate Data Store (CDS): ERA5 hourly time-series data on single levels from 1940 to present This dataset is a subset of som… --- ## [ERA5 last date available in metadata in ARCO](https://forum.ecmwf.int/t/era5-last-date-available-in-metadata-in-arco/15398)
**Author:** [@Jesica\_Pinon\_Rodriguez](https://forum.ecmwf.int/u/Jesica_Pinon_Rodriguez)\ **Replies:** 0\ **Last updated:** [9 October 2026 14:09 UTC](https://forum.ecmwf.int/t/era5-last-date-available-in-metadata-in-arco/15398 "2026-10-09T14:09:00Z")
Hi! Would it be possible to distinguish between ERA5 and ERA5T directly from the Zarr file metadata? For example, adding an attribute that specifies the last date covered by the finalized ERA5 archive would allow users … --- ## [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: 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… --- ## [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 … --- ## [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… --- ## [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 C3S application published: Weather Replay](https://forum.ecmwf.int/t/new-c3s-application-published-weather-replay/14941)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 1\ **Last updated:** [11 May 2026 20:11 UTC](https://forum.ecmwf.int/t/new-c3s-application-published-weather-replay/14941 "2026-05-11T20:11:16Z")
We are pleased to announce that the new C3S application Weather Replay has been launched today, 11 May 2026: weather-replay.climate.copernicus.eu Weather Replay is an interactive web-application designed to visualise… --- ## [New dataset published in CDS: ORAS5 global ocean reanalysis monthly time-series data from 1958 to present](https://forum.ecmwf.int/t/new-dataset-published-in-cds-oras5-global-ocean-reanalysis-monthly-time-series-data-from-1958-to-present/14863)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [27 April 2026 09:00 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-oras5-global-ocean-reanalysis-monthly-time-series-data-from-1958-to-present/14863 "2026-04-27T09:00:00Z")
We are pleased to announce that a new dataset has been published today, 27th April 2026, in the Climate Data Store (CDS): This dataset is a post-processed version of the original CDS ORAS5 dataset and is stored in Ana… --- ## [New dataset published in CDS: Thermal comfort indices time-series derived from ERA5 reanalysis](https://forum.ecmwf.int/t/new-dataset-published-in-cds-thermal-comfort-indices-time-series-derived-from-era5-reanalysis/14864)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [23 April 2026 14:00 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-thermal-comfort-indices-time-series-derived-from-era5-reanalysis/14864 "2026-04-23T14:00:00Z")
We are pleased to announce that a new dataset has been published today, 23rd April 2026, in the Climate Data Store (CDS): This dataset is a post-processed version of the original CDS Thermal comfort indices derived fr… --- ## [New CDS Beta Service: Access to our ARCO Data Lake](https://forum.ecmwf.int/t/new-cds-beta-service-access-to-our-arco-data-lake/14877)
**Author:** [@Anabelle](https://forum.ecmwf.int/u/Anabelle)\ **Replies:** 0\ **Last updated:** [20 April 2026 09:55 UTC](https://forum.ecmwf.int/t/new-cds-beta-service-access-to-our-arco-data-lake/14877 "2026-04-20T09:55:28Z")
We are pleased to announce the expansion of our product offerings based on ARCO (Analysis Ready Cloud Optimized) capabilities, which include direct tokenized access to data cubes. Climate Data Store (CDS) datasets with … --- ## [New variables added to the ERA5 and ERA5-Land time-series datasets on the CDS](https://forum.ecmwf.int/t/new-variables-added-to-the-era5-and-era5-land-time-series-datasets-on-the-cds/14208)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 0\ **Last updated:** [25 September 2025 08:30 UTC](https://forum.ecmwf.int/t/new-variables-added-to-the-era5-and-era5-land-time-series-datasets-on-the-cds/14208 "2025-09-25T08:30:09Z")
We are pleased to announce that several new variables are now available to download from the ERA5 hourly time-series dataset and the ERA5-Land hourly time-series dataset on the Climate Data Store (CDS): Skin temperatur… --- ## [New dataset published in CDS: ERA5 Land hourly time-series data from 1950 to present](https://forum.ecmwf.int/t/new-dataset-published-in-cds-era5-land-hourly-time-series-data-from-1950-to-present/13293)
**Author:** [@Michela](https://forum.ecmwf.int/u/Michela)\ **Replies:** 2\ **Last updated:** [24 September 2025 13:18 UTC](https://forum.ecmwf.int/t/new-dataset-published-in-cds-era5-land-hourly-time-series-data-from-1950-to-present/13293 "2025-09-24T13:18:04Z")
We are pleased to announce that a new dataset has been published today, 03 June 2025, in the Climate Data Store (CDS): ERA5 Land hourly time-series data from 1950 to present This dataset is a subset of some parameter…