The ECMWF Public Datasets Service is being decommissioned and access to most datasets closed on 1 June 2023. In a final step later this year, access to the remaining multi-model datasets S2S and TIGGE will be migrated to a different system. For more information and possible alternatives, please consult the dedicated page on Decommissioning of ECMWF Public Datasets service.
In this page you will find explanations, guides and examples showing how to use the different ECMWF WebAPI services.
This external access is limited and managed by the User Profile access (Member State, Commercial customers, ECMWF staff member...). Some of these services are public and some other are restricted to the Archive Access.
    
     
    
| Type of user | Web | Batch download | 
|---|---|---|
| Authorized user | MARS catalogue (Authorization required, browse and download) | Access MARS | 
| Commercial user | Archive catalogue (Only browse) MARS catalogue (Authorization required, browse and download) | Access MARS | 
| Public user | Public Datasets | Access ECMWF Public Datasets | 
- MARS Catalogue (restricted to authorised users)
- Archive Catalogue (browse only)
- Public Dataset web interface
Blog Posts
- 
                                          Decommissioning of ECMWF Public Datasets service
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            Mar 02, 2023
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                                          ERA5 access migrated to the Climate Data Store (CDS)
         created by
            Unknown User (uscs)Mar 05, 2019
- 
                                          IMPORTANT New interpolation software: MIR
         created by
            Unknown User (uscs)Jan 29, 2019
- 
                                          New Public Dataset: CERA-SAT Monthly
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            Oct 15, 2018
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                                          ERA5 and C3S users should migrate they work to CDS
         created by
            
            Aug 02, 2018
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                                          Change in the Web API behaviour: expected fields vs. retrieved fields
         created by
            Unknown User (uscs)Feb 26, 2018
- 
                                          New Public Dataset: CERA-SAT
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            Dec 08, 2017
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                                          New models added on Public Dataset UERRA
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            Nov 23, 2017
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                                          New Public Dataset: CAMS Reanalysis
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            Nov 13, 2017
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                                          Limit the period of a request via the Web User Interface
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            Nov 10, 2017
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                                          New Public Dataset: C3S Seasonal forecasts
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            Nov 02, 2017
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                                          New Public Dataset: CERA-20C Observation Feedback
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            Oct 03, 2017
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                                          Web-API client version 1.5.0 released
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            Sept 20, 2017
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                                          New Public Dataset: ERA5 reanalysis
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            Aug 03, 2017
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                                          New Public Dataset: CAMS climate forcing
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            Jun 02, 2017
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                                          New Public Dataset: UERRA Harmonie and UM-4dvar
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            May 25, 2017
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                                          New Public Dataset: Year Of Polar Prediction (YOPP)
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            May 10, 2017
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                                          New Public Dataset: Global ECMWF Fire Forecasting model (GEFF)
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            Feb 27, 2017
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                                          New Public Dataset: CERA-20C daily
         created by
            Unknown User (uscs)Jan 30, 2017
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                                          New Public Dataset: CERA-20C monthly
         created by
            Unknown User (uscs)Jan 12, 2017
- 
                                          New S2S origin: KMA is now available
         created by
            Unknown User (uscs)Jan 11, 2017
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                                          New Public Dataset: ERA5_test reanalysis
         created by
            Unknown User (uskh)Nov 04, 2016
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                                          New Public Dataset: CAMS GHG flux inversions
         created by
            Unknown User (uscs)Jul 20, 2016
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                                          New Public Dataset: S2S, ECCC, Reforecasts
         created by
            Unknown User (uscs)Jun 29, 2016
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                                          New Public Dataset: CAMS NRT dataset
         created by
            Unknown User (uscs)Jun 22, 2016
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                                          New Public Dataset: S2S, ECCC, Realtime
         created by
            Unknown User (uscs)Jun 22, 2016
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                                          New Public Dataset: ERA-20C Monthly Means, ERA-20C Wave Monthly Means
         created by
            Unknown User (uscs)May 20, 2015
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                                          New Public Dataset: CAMS Global Fire Assimilation System
         created by
            Unknown User (uscs)May 20, 2015
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                                          New Public Dataset:  ERA-20C Daily, ERA-20C Wave, ERA-20C Observations
         created by
            Unknown User (uscs)May 13, 2015
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                                          New Public Dataset: S2S
         created by
            Unknown User (uscs)May 13, 2015
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                                          Limit target size
         created by
            Unknown User (uscs)Apr 29, 2015
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                                          Limit number of fields
         created by
            Unknown User (uscs)Apr 01, 2015