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  1. Climate Data Store (CDS) documentation

    Please be aware that on 26 September 2024 the CDS legacy system has been decommissioned. Although some of the functionalities are common to the new CDS system we invite you to read the quick guide and additional information on some of the changes: Please read: CDS and ADS migrating to new infrastructure: Common Data
    Copernicus Knowledge BaseJun 06, 2025
  2. Start dates available in the CDS per forecast system

    Please note the CDS will deliver all available ensemble members, the number of which in most cases differs between hindcast and forecast start dates … they are only produced a few weeks ahead of the time they are needed. (2) January 1993 is not available (3) 1981-1992 not available in the CDS (4) 2011-2016 hindcast data
    Copernicus Knowledge BaseMay 14, 2025
  3. How to install and use CDS API on Windows

    You only need to go through this procedure once, before you can use the CDS API on Windows to programmatically download data from either the Climate Data Store (CDS) https://cds.climate.copernicus.eu/ or the Atmosphere Data Store (ADS) https://ads.atmosphere.copernicus.eu/. Prerequisites You need to have a CDS
    Copernicus Knowledge BaseApr 22, 2025
  4. How to install and use CDS API on macOS

    You only need to go through this procedure once, before you can use the CDS API on macOS to programmatically download data from either the Climate Data Store (CDS) https://cds.climate.copernicus.eu/ or the Atmosphere Data Store (ADS) https://ads.atmosphere.copernicus.eu/. Prerequisites You need to have a CDS or ADS
    Copernicus Knowledge BaseApr 22, 2025
  5. GRIB to netCDF conversion on new CDS and ADS systems

    Introduction The new CDS and ADS systems (currently the beta system) have a new GRIB to netCDF converter. This new converter is based on xarray … produced by ECMWF, the format used in the netCDF files served by the CDS/ADS should not be considered a long-term stable format. Therefore, it is highly
    Copernicus Knowledge BaseMay 20, 2025
  6. How to acknowledge and cite a Climate Data Store (CDS) catalogue entry and the data published as part of it

    on the Climate Data Store (CDS) must provide clear and visible attribution to the Copernicus program and are asked to accredit the creators of the data. This can … the Copernicus program. Step 2 - Cite the CDS Catalogue entry (traceable source of data) You will find the information on how to cite the CDS/web Catalogue entry
    Copernicus Knowledge BaseJul 03, 2025
  7. How to use the CDS interactive forms and CDS API for seasonal forecast datasets

    The details offered in this page are intended to explain the different selection options for each of the C3S seasonal forecast datasets. For users of the CDS … https://en.wikipedia.org/wiki/Snake_case). Example: "Originating centre" would be originating_centre in the CDS API 'request' Daily data You will find two CDS catalogue
    Copernicus Knowledge BaseOct 22, 2024
  8. Common Error Messages for CDS Requests

    Please be aware that some of the content of this page is only relevant for the legacy CDS system. We welcome your contribution with reporting any errors you may encounter while using the new CDS so that it may be documented below for the benefit of all users.   Major modification in progress
    Copernicus Knowledge BaseOct 29, 2024
  9. Please read: CDS and ADS migrating to new infrastructure: Common Data Store (CDS) Engine

    From September 26, 2024, the legacy CDS and legacy ADS are decommissioned and no longer accessible. CDS-Beta and ADS-Beta have officially become the new CDS … Climate Data Store, Hello New Climate Data Store (CDS)! https://forum.ecmwf.int/t/goodbye-legacy-climate-data-store-hello-new-climate-data-store-cds/6380
    Copernicus Knowledge BaseOct 04, 2024
  10. ERA5 CDS: wrong values of U/V components on pressure levels in the Climate Data Store (CDS)

    the following data in the climate data store (CDS): CDS Dataset ERA5 hourly data on pressure levels from 1979 to present … interpolated on a regular grid in CDS. U/V should have been computed from Vo and D in spherical harmonics representation (the native model representation
    Copernicus Knowledge BaseOct 02, 2024