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.gitattributes

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 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
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README.md

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+---
+license: cc-by-nc-nd-4.0
+library_name: onnxruntime
+tags:
+  - climate
+  - onnx
+  - seasonal
+  - subseasonal
+  - weather
+---
+
+# FuXi-S2S ONNX checkpoint mirror
+
+This repository is an unchanged convenience mirror of the official FuXi-S2S
+ONNX checkpoint published by the FuXi Team. The authoritative release remains
+the [Zenodo record](https://zenodo.org/records/15718402), and model usage is
+documented in the [official FuXi-S2S repository](https://github.com/tpys/FuXi-S2S).
+
+The mirror exists so downstream integrations such as
+[NVIDIA Earth2Studio](https://github.com/NVIDIA/earth2studio) can retrieve the
+ONNX graph and its large external-data file reliably and pin an immutable
+revision.
+
+## Files and provenance
+
+The two files were extracted without modification from `model-1.0.tar` in the
+official Zenodo release. They must remain in the same directory because the
+ONNX graph refers to its external weights by the sibling filename
+`fuxi_s2s`.
+
+| File | Size (bytes) | SHA-256 |
+| --- | ---: | --- |
+| `fuxi_s2s.onnx` | 1,588,847 | `bcc3419ef698cb894b17fae2c5e40ded05d87ed8d4ba9f6342c9f0afff3c70f5` |
+| `fuxi_s2s` | 2,078,823,204 | `628d86076810d3d5c53a7a27f10e67b08051e2d2e5c9224a2df96cba8ecd8ea8` |
+
+The source archive is 2,080,419,840 bytes with MD5 checksum
+`17790f6bb7c3f83ce846d36f2339c4b3`, matching the checksum published by
+Zenodo. The separate `data.zip` validation sample is intentionally not
+mirrored here and remains available from the authoritative record.
+
+## License and use restrictions
+
+The checkpoint is licensed under
+[CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/).
+The official record states that it is intended for research use and that
+commercial or competition use requires prior permission from the authors.
+Those checkpoint terms apply independently of the license of any downstream
+integration.
+
+## Citation
+
+If you use this checkpoint, cite the original work:
+
+```bibtex
+@article{chen2024machine,
+  title = {A machine learning model that outperforms conventional global subseasonal forecast models},
+  author = {Chen, Lei and Zhong, Xiaohui and Li, Hao and Wu, Jie and Lu, Bo and Chen, Deliang and Xie, Shang-Ping and Wu, Libo and Chao, Qingchen and Lin, Chensen and others},
+  journal = {Nature Communications},
+  volume = {15},
+  number = {6425},
+  pages = {1--14},
+  year = {2024},
+  publisher = {Nature Publishing Group UK London},
+  doi = {10.1038/s41467-024-50714-1}
+}
+```

fuxi_s2s

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+version https://git-lfs.github.com/spec/v1
+oid sha256:628d86076810d3d5c53a7a27f10e67b08051e2d2e5c9224a2df96cba8ecd8ea8
+size 2078823204

fuxi_s2s.onnx

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+version https://git-lfs.github.com/spec/v1
+oid sha256:bcc3419ef698cb894b17fae2c5e40ded05d87ed8d4ba9f6342c9f0afff3c70f5
+size 1588847