Inquiry about Regional Evaluation Feature in AI Weather Quest Python Package

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1

Hi, Joshua

Thank you for the continuous updates and improvements to the Python package—it’s incredibly helpful for the competition.

I was reviewing the update notes on the ECMWF Confluence Wiki and noticed the exciting addition in version 2.4.4: “Added functionality to evaluate forecasts for selected geographic regions to enable regional evaluation.”

However, after checking the main package documentation, I couldn’t find any details or examples for this new regional evaluation feature.

Could you please provide a simple example of how to use the package to perform a regional forecast evaluation?

Thank you for your time and support!

Best regards

Peng

2

Dear Peng,

Thanks for the message.

I have added some additional documentation illustrating how to work out regional RPSSs.

Essentially, you need to mask out grid points outside the chosen region before calculating the RPSS. This can be done easily using the apply_region_mask function.

Thanks,

Josh