Test CAMS global forecast test data is available from 1 September 2022 onwards from the MARS archive. A daily updated test dataset is also available for the most recent 3 days on the FTP server.

Because of GFAS hourly plume model component will be updated together with CAMS global forecast, GFAS hourly test data is available as well, from 1 December 2018 onwards from MARS archive and an hourly updated test data made available on the FTP server. 

MARS

If you have access to ECMWF systems you can retrieve CAMS global forecast test data from MARS archive using keywords:

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You can use this link to directly access the data in the MARS catalogue (please remember that ecCodes version 2.28.0 or later is required to handle the full range of parameters of current CAMS data).

GFAS hourly test data can be retrieved as well, using keywords:

class=mc
expver=9911

Atmosphere Data Store (ADS)

If you don't have access to ECMWF computers but would still like to access a large subset of test data, you can retrieve fields of the cams-global-atmospheric-composition-forecasts-test dataset using the Copernicus Atmosphere Data Store API.

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/DATA/CAMS_GLOBAL_TEST
/DATA/CAMS_GLOBAL_ADDITIONAL_TEST
/DATA/CAMS_EUROPE_BC_TEST
/DATA/CAMSGFAS_HOURLY_TEST

You can use your normal FTP account to access the data. Details about filenames convention or list of available parameters can be found at Copernicus Knowledge Base.

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