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- The ERA-Interim data is hosted at ECMWF. To access the ERA-Interim data you need a user account with ECMWF, so if you do not have a account, register a ECMWF account now.
- Read the Conditions of Use and accept the agreement at the bottom the page. This is necessary so we have a record of you accepting the license agreement.
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- Go to ECMWF Web User Interface for ERA-Interim
- Make sure you are logged in with your ECMWF user ID (top right of the page)
- In the left hand menu select if you want daily or monthly data, and surface, pressure levels or model levelsMake sure you are logged in with your ECMWF user ID (top right of the page)
- Select the time period you want to download. Since October 25th 2017, the time period you can select for daily data is limited to one month, and for monthly data to one year.
- Select Time and Step options
- Select the parameters you want to download data for
- On the next page, if you are shown a data license, review and accept the data licence
- The data can be downloaded in the GRIB file format or in NetCDF. NetCDF is experimental and unsupported. Select the desired format.
- On the next page you are shown a summary of your data request. Review it, and at this stage you may also change the output grid resolution and also select a specific geographical area of interest. Once you are ready to proceed with the download, click "Retrieve Now".
- Once the data is retrieved you are shown a download link, click it to download the data.
- It can take up to a few hours to extract the data from the archives, depending on demand and on the size of your data request. If you don't want to wait you can come back later, check the status of your request in your Job List, and download the data from there. After three days the data is deleted from our servers.
- With the download link you are shown a technical summary of your data request. We recommend you copy this to a text document and keep it for your own documentation.
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