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README.md

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-license: apache-2.0
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+# ACE2-ERA5
+
+Ai2 Climate Emulator (ACE) is a family of models designed to simulate atmospheric variability from the time scale of days to centuries.
+
+**Disclaimer: ACE models are research tools and should not be used for operational climate predictions.**
+
+ACE-climSST is the original `ACE' model, as described in [ACE: A fast, skillful learned global atmospheric model for climate prediction](https://arxiv.org/abs/2310.02074).
+It is trained on output from the FV3GFS atmospheric model forced with annually-repeating climatological sea surface temperature.
+
+Code for doing inference with ACE models can be found here: [https://github.com/ai2cm/ace](https://github.com/ai2cm/ace)
+with corresponding documentation here: [https://ai2-climate-emulator.readthedocs.io/en/stable/](https://ai2-climate-emulator.readthedocs.io/en/stable/)
+
+Briefly, the strengths of ACE-climSST are:
+- long-term stability
+- highly accurate time-mean climate compared to its target dataset
+
+Some known weaknesses are:
+- responses to more El Niño-like sea surface temperature and long-term warming trends are not accurately captured
+- small but non-zero drifts in total dry air mass of the atmosphere