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license: apache-2.0 |
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<img src="ACE-logo.png" alt="Logo for the ACE Project" style="width: auto; height: 50px;"> |
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# ACE-climSST-EAMv2 |
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Ai2 Climate Emulator (ACE) is a family of models designed to simulate atmospheric variability from the time scale of days to centuries. |
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**Disclaimer: ACE models are research tools and should not be used for operational climate predictions.** |
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ACE-climSST-EAMv2 is the model described in [Application of the AI2 Climate Emulator to E3SMv2's Global Atmosphere Model, With a Focus on Precipitation Fidelity](https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024JH000136). |
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It is trained on output from the E3SMv2's atmosphere model (i.e. EAMv2) forced with annually-repeating climatological sea surface temperature. |
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Quick links: |
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- 📃 [Paper](https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024JH000136) |
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- 💻 [Code](https://github.com/ai2cm/ace) |
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- 💬 [Docs](https://ai2-climate-emulator.readthedocs.io/en/stable/) |
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- 📂 [All Models](https://huggingface.co/collections/allenai/ace-67327d822f0f0d8e0e5e6ca4) |
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Briefly, the strengths of ACE-climSST-EAMv2 are: |
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- long-term stability |
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- highly accurate time-mean climate compared to its target dataset |
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- faithful emulation of the precipitation distribution and tropical variability in EAMv2 |
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Some known weaknesses are: |
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- responses to El Niño-like sea surface temperature and long-term warming trends are not accurately captured |
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- small but non-zero drifts in total dry air mass of the atmosphere |
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Note the checkpoint provided here is the same as the one [here](https://portal.nersc.gov/archive/home/projects/e3sm/www/e3smv2-fme-dataset), just with the optimizer state removed to decrease the checkpoint size. |
