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Message Box
iconnone
titleShut down of legacy CDS - Please migrate to EWDS!
typeerror

The legacy CDS and legacy ADS will be decommissioned on 26 September 2024 and will no longer be accessible from this date. 

On 26 September 2024, CDS-Beta and ADS-Beta will officially become the new CDS and ADS, and EWDS-Beta will become operational for accessing CEMS data.

The URLs to CDS-Beta, ADS-Beta and EWDS-Beta will shift tocds.climate.copernicus.eu, ads.atmosphere.copernicus.eu and ewds.climate.copernicus.eu respectively. 

If you are a legacy CDS or legacy ADS user and wish to continue downloading data from our Data Stores, you are urged to migrate to the CDS-Beta, ADS-Beta, or EWDS-Beta now (see quick guides below). From September 26, 2024, CDS, ADS, and EWDS API users attempting to access data using their legacy credentials will see their requests systematically fail, for which no support will be provided.

If you are a CDS-beta, ADS-beta, or EWDS-beta user, from September 26, 2024, there is no urgency at this time to update the URL in your .cdsapirc. Requests will be automatically redirected from the beta URLs to the proper ones for some time. You will be advised to update the URL in your .cdsapirc file at your earliest convenience (but within a timeframe to be announced). We will update this page and post an announcement on our Forum to remind and guide users on what to do. 

The decommissioning date of 26 September 2024 is final and will not be extended.

Note
titleQuick Guide
  • Create a new EWDS-Beta account and accept EWDS-Beta Terms & Conditions at https://ewds-beta.climate.copernicus.eu/
  • Accept the licences of the product you are interested in (go to the Download form of the product of interest).
  • For API access:
    • Update API credentials and end point (eg. in your .cdsapirc file) as shown, after logging on here (Note that new .cdsapirc file should only contain a URL and a key field - there is NO UID field anymore).
    • Upgrade your CDS API (i.e pip install --upgrade cdsapi). Please make sure you are using a supported version of Python i.e. 3.8 and above. 
    • New API is designed to be backward compatible which means that once your .cdsapirc is updated and your CDS API package upgraded, your API script may run successfully immediately, downloading data from CDS-Beta. There are a few datasets however for which API syntax may have changed - please check the warning on the catalogue page of the affected datasets (e.g. E-OBS). 
    • Run a small API test request. 

More details available (e.g. CDS Toolbox and Good-to-know sections below)

Table of Contents

Introduction 

A new state-of-the-art infrastructure, referred to as the Common Data Store Engine, has been developed by ECMWF to host the Climate and Atmospheric Data Stores.  All layers of the infrastructure are being modernised: the front-end web interface, the back-end software engine, and the underlying cloud infrastructure hosting the service and core data repositories.

...