@article{chen2026evaluating,
  title = {Evaluating data-driven background ensembles covariances from Graphcast: a case study for Hurricane Lee (2023)},
  author = {Zhihong Chen and Xuguang Wang},
  year = {2026},
  eprint = {2603.26703},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.26703},
}