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MARS/MIR will become the default client at ECMWF on 29 January 2019 at 10:00 UTC |
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The new MARS client with the MIR interpolation library is now considered ready for production and suitable for operational use. It is not yet the default version. You can use the new MIR-enabled MARS client on any ECMWF computing platform with:
If you are using the the ECMWF WebAPI you can test it by adding an extra keyword to your requests:
If using Metview, you can use MIR interpolation with the following commands before starting it:
You are encouraged to test this new version of the MARS client and report any issues to servicedesk@ecmwf.int. |
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You can replace your standard mars calls adding the extra option:
If you are using the the ECMWF WebAPI you can test it by adding an extra keyword to your requests:
If using Metview, you can use MIR interpolation with the following commands before starting it:
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You can replace your standard mars calls adding the extra option:
If using the WebAPI, you can add the keyword:
If using Metview greater than 5.4, you need to define the environment variable:
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MIR has undergone a thorough validation process and tests to ensure its quality and correctness. However, since the implementations and strategies used in both packages are different, you may see some differences when using MIR instead of EMOSLIB. How significant those differences will be will depend on each specific case. Here is an example. The same 2m temperature field on a native O1280 grid has been interpolated to a 0.1/0.1 latitude-longitude grid using both methods. Plots have been produced for both, together with a third one with the differences greater than half a degree Celsius between them.
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