Gabriela Aznar Siguan

Observation Assimilation Transformer: Probabilistic Weather Analysis from Sparse Station Observations

We present the Observation Assimilation Transformer (OAT), a geometry-aware neural process that corrects and refines a prior numerical weather prediction (NWP) field into a high-resolution posterior field by assimilating sparse observations. OAT is an encoder-decoder transformer that considers a set of observed locatio...