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google-deepmind / graphcast

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Model Predict #4

Closed Vitalitypi closed 9 months ago

Vitalitypi commented 10 months ago

Hello, can this model predict the weather in N20~N40, E110-E130？I see that the model can only train data with latitudes starting from -90 and ending in 90. How can I train data with latitudes between 20 and 40? When training data from latitude 20 to 40, errors are reported in calculating losses!

alvarosg commented 10 months ago

The model as it is set up assumes the whole globe, and uses a mesh around the whole globe. We have not really tried using it in smaller patches of data only. That said, it should probably be possible, my guess is that you would need to build a smaller mesh for the region you are interested on, rather than using the full refined icosahedral mesh which covers the whole globe.

Vitalitypi commented 10 months ago

The model as it is set up assumes the whole globe, and uses a mesh around the whole globe. We have not really tried using it in smaller patches of data only. That said, it should probably be possible, my guess is that you would need to build a smaller mesh for the region you are interested on, rather than using the full refined icosahedral mesh which covers the whole globe.

Thank you very much!

Divanvdb commented 2 months ago

Did you figure out how to use the model for a specific region?

Vitalitypi commented 2 months ago

no, thanks!

---Original--- From: @.> Date: Wed, May 8, 2024 20:53 PM To: @.>; Cc: @.**@.>; Subject: Re: [google-deepmind/graphcast] Model Predict (Issue #4)

Did you figure out how to use the model for a specific region?

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