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Hi authors and @wesselb!
It is great to see such a powerful foundation model for air quality. Thank you for making the codebase available. I had a few questions about the CAMS experiments.
- In Figure 2 (Aurora outperforms operational CAMS across many targets) of the paper, what was the ground truth to compute the RMSE of CAMS and Aurora and show that Aurora has, at best, 30% better RMSE? For example, the Integrated Surface Database (ISD) was used as the ground truth for meteorology.
- Do you have more insights on using or not using emission inventory as input to Aurora? Did you do any small/large scale experiments with/without emission inventory as an input and know whether it is useful? The question is more from an ML point of view on intuitions about the usefulness of emission inventory.