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[Blog] WeatherMesh AI DA #153

@jacobbieker

Description

@jacobbieker

Arxiv/Blog/Paper Link

https://windbornesystems.com/blog/windborne-ai-da

Detailed Description

AI DA system using the HEALPix grid, separate encoders per sensor, and a three stage updating of single observation to background state at a location, all observations to updated background state at a location, then updated background and observations at all locations.

Uses transformers to communicate from the background state and between observational latent state.

Seems impressive results, although still tied somewhat to the NWP assimilation/forecasts, as it uses the previous 6 hour forecast.

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