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As ERA5 is now available (What are the changes from ERA-Interim to ERA5?), we are preparing to stop the production of ERA-Interim on 31st August 2019. This means that the complete span of ERA-Interim data will be from For the time being and until further notice, ERA-Interim (1st January 1979 to 31st August 2019.) shall continue to be accessible through the ECMWF Web API. Keeping in mind that ERA-Interim is published with an offset of about three months from the dataset's reference date, ERA-Interim August 2019 data will be made available towards the end of October 2019.For the time being and until further notice, ERA-Interim shall continue to be accessible through the ECMWF Web API. ERA5 is now available from the Climate Data Store (CDS) (What are the changes from ERA-Interim to ERA5?) and users are strongly advised to migrate to ERA5 (How to migrate from ECMWF Web API to CDS API). |
1. Learn about ERA-Interim data
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The test request will download data from ECMWF and save as file "test.nc" in the directory you issued the command from. The file should be around 58 KB.
If you get an error message, most likely your computer setup is wrong, or you did not accept the data license, please go back to the previous set-up steps.
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To retrieve data efficiently (and get your data quicker!) you should retrieve all the data you need from one tape, then from the next tape, and so on. In most cases, this means retrieving all the data you need for one month, then for the next month, and so on. To find out what data is available on each tape, browse the ERA-Interim data catalogue and make your way until the bottom of the tree archive (where parameters are listed). Once you will have reached that level of the archive, what you see is what you can find on one single tape. See Retrieval efficiency page for more details and additional ERA-Interim script examples (e.g. daily and monthly means). |
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