Resolving sources of uncertainty in AI weather forecasting

Published in arXiv, 2025

We introduce Pangu-Bayes, a probabilistic AI weather forecasting framework that explicitly resolves atmospheric-state uncertainty and learned-model uncertainty.

Pangu-Bayes treats these two uncertainty sources as distinct stochastic variables and investigates their source-dependent effects on global probabilistic weather forecasting and tropical cyclone prediction.

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* Equal contribution.

Recommended citation: Wenbo Hu*, Xinlei Xiong*, Shuxun Zhou, Kaifeng Bi, Lingxi Xie, Jun Zhu, Richang Hong, and Qi Tian. (2025). "Resolving sources of uncertainty in AI weather forecasting." arXiv preprint arXiv:2511.14218.
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