With the need to consolidate its data-provision infrastructure, ECMWF will decommission the Public Datasets Service.
On 1 June 2023 the Public Datasets Service, including access via the Web API client, except for S2S and TIGGE, will stop and the datasets listed below will no longer be available via this service.
Global Reanalysis datasets:
- CERA-20C (Jan 1901 - Dec 2010)
- ERA-20C (Jan 1900 - Dec 2010)
- ERA-Interim (Jan 1979 - Aug 2019)
- ERA-Interim/LAND (Jan 1979 - Dec 2010)
- ERA-20CM (Jan 1900 - Dec 2010) Final
- ERA-40 (Sep 1957 - Aug 2002)
- CERA-SAT (Jan 2008 - Dec 2016)
Regional reanalysis:
Atmospheric composition:
Observation feedback:
Miscellaneous
If you still need to access any of the datasets listed above via the Public Datasets Service, please do so before 1 June 2023. For alternative ways of accessing the data and more up-to-date datasets, please see Decommissioning of ECMWF Public Dataset Service and "watch" the page to get notified of further updates. For any questions, please contact us via the ECMWF Support Portal.
Thank you for using our services and please accept our apologies for any inconvenience.v
From 5 March 2019, the access to the ERA5 dataset has migrated from the Web API the Climate Data Store (CDS).
This article will help users with the migration:
The Web API uses MARS to transform and interpolate the input fields to the user requested grid.
From 29 January 2019 10AM (UTC) MARS uses the interpolation provided by the MIR library.
For more information see:
https://confluence.ecmwf.int/display/UDOC/MARS+interpolation+with+MIR
Please report any issue you may have with the retrieved data to servicedesk@ecmwf.int
The following 2 new Monthly sub-datasets have been added under the "CERA-SAT" dataset
Synoptic Monthly Means | http://apps.ecmwf.int/datasets/data/cera-sat-edmm |
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Monthly Means of Daily Means | |
Documentation | https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/cera-sat |
If you are downloading ERA5 or C3S Seasonal data through the ECMWF public datasets, please migrate to the Climate Data Store.
This change will be implemented on
If you are using either Access ECMWF Public Datasets or Access MARS to get ECMWF data, from onward the system will fail if the number of expected fields is different than the number of retrieved fields. More information here:
Troubleshooting MARS_EXPECTED_FIELDS
Web interface link | http://apps.ecmwf.int/datasets/data/cera-sat-enda/ |
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Documentation | https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/cera-sat |
The following new models have been added on UERRA dataset:
COSMO/En, MESAN/V1, MESCAN-SURFEX, MESCAN-SURFEX/En
Web interface link | http://apps.ecmwf.int/datasets/data/uerra/ |
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Documentation | UERRA Description |
Web interface link | apps.ecmwf.int/data-catalogues/cams-reanalysis/ |
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Documentation | CAMS: Reanalysis data documentation |
To improve the service ECMWF implemented the following limits:
- daily datasets: one month per request
- monthly datasets: one year per request
Web interface link | http://apps.ecmwf.int/data-catalogues/c3s-seasonal/ |
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Documentation | https://climate.copernicus.eu/seasonal-forecasts |
Web interface link | At the moment this dataset is only available via the Web-API (ie the programmatic way) |
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Documentation | http://www.ecmwf.int/en/research/climate-reanalysis/cera-20c |
Web interface link | http://apps.ecmwf.int/data-catalogues/era5/ |
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Documentation | https://climate.copernicus.eu/products/climate-reanalysis |