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Message Box
titleImportant information on CEMS Data Access via CDS
typegeneric

ECMWF has implemented a new state-of-the-art data access infrastructure to host the Climate and Atmospheric Data Stores (CDS and ADS, respectively). 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.

As part of this development, a new data store for the Copernicus Emergency Management Service (CEMS) has been created. The CEMS Early Warning Data Store (EWDS) will host all the historical and forecast information for floods and forest fires at European and Global levels. Users are encouraged to migrate their accounts and scripts to the new EWDS Beta before 03 September 2024, when the system will become operational.

For more information, Please read: CEMS Early Warning Data Store (EWDS) coming soon!

Documentation on how to access data via the CEMS EWDS will be updated as the implementation takes place.


CEMS-Floods (EFAS and GloFAS) datasets are openly available on the Copernicus Climate Change Service (C3S) Climate Data Store (CDS). The CDS provides access through web-based and API-based search and retrieve facilities. It is an easy way for users to access climate-related data, including CEMS-Flood data. Access to the Climate Data Store is available via the web at theCopernicus Climate Data Store. 

EFAS and GloFAS data are primarily stored in GRIB format but may be available in NetCDF4 as well, please consult the Data Structure and Formats page for an up to date list of available formats. Follow the links for further information on the GRIB file format and for information on how to read GRIB files.


Warning
titleWarning!

The data service offered by the CDS is not maintained as a time-critical operational service and should not be used for any time-critical operations!

If you would like access to real-time forecast data for time-critical operation please contact us by opening a ticket with the ECMWF Support Portal. A guide on how to do this is provided on the CEMS-Flood Data Support page.


Page Tree
spaceKeyCEMS
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What EFAS and GloFAS datasets are available on the CDS? 

There are currently 10 EFAS and GloFAS datasets available on the CDS, ranging from historical reanalysis, real-time flood and seasonal forecasts, as well as a comprehensive set of reforests. A list of the datasets is provided below together with a link to their corresponding 'Overview' page on the CDS, where you will find further metadata and download functionalities:

DatasetCDS catalogue formUpdate
EFAS
EFAS historicalhttps://cds.climate.copernicus.eu/cdsapp#!/dataset/efas-historicaldaily, from 10:45 am UTC
EFAS forecastshttps://cds.climate.copernicus.eu/cdsapp#!/dataset/efas-forecastdaily, from 10:45 am UTC
EFAS reforecastshttps://cds.climate.copernicus.eu/cdsapp#!/dataset/efas-reforecastupdated with every major EFAS upgrade
EFAS seasonal forecastshttps://cds.climate.copernicus.eu/cdsapp#!/dataset/efas-seasonalmonthly, every 10th from 12:30 UTC
EFAS seasonal reforecastshttps://cds.climate.copernicus.eu/cdsapp#!/dataset/efas-seasonal-reforecastupdated with every major EFAS upgrade
GloFAS
GloFAS historicalhttps://cds.climate.copernicus.eu/cdsapp#!/dataset/cems-glofas-historicaldaily, from 10:45 am UTC
GloFAS forecastshttps://cds.climate.copernicus.eu/cdsapp#!/dataset/cems-glofas-forecastdaily, from 10:45 am UTC

GloFAS reforecasts

https://cds.climate.copernicus.eu/cdsapp#!/dataset/cems-glofas-reforecastwith every major GloFAS upgrade
GloFAS seasonal forecastshttps://cds.climate.copernicus.eu/cdsapp#!/dataset/cems-glofas-seasonalmonthly, every 10th from 12:30 UTC
GloFAS seasonal reforecastshttps://cds.climate.copernicus.eu/cdsapp#!/dataset/cems-glofas-seasonal-reforecastwith every major GloFAS upgrade




CDS Support

For queries relating to the CDS, consider consulting the CDS User Forum for detailed discussions related to the CDS (e.g. infrastructure, datasets, etc).



If you cannot find support through the CDS User Forum, all inquiries (including access about access for real-time CEMS-Flood forecasts and/or reforecasts) should be made through ECMWF Support Portal. This portal is the primary entry point for all users for all types of queries on ECMWF data, products, and services. For further information on the ECMWF Support Portal read the news announcement, and for how to submit a query related to CEMS-Flood data see the CEMS-Flood Data Support Page.