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The data is now available from the Atmosphere Data Store (ADS), as the dataset:
CAMS global biomass burning emissions based on fire radiative power (GFAS)
This data can be accessed either interactively through its download web form or programmatically using the CDS API service.
It's strongly suggested to construct CDS API requests by using the web form of the relevant dataset and using the 'Show API request' button to get the code. Please note, currently only strings should be used as keyword values in a CDS API request for ADS data.
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