AI article

HiRO-ACEv2: Simulating extreme weather at 3 km resolution for a fraction of the cost

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huggingface | Oct 14, 2026 | Kyle Wiggers

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HiROv2 can reproduce even extremely rare rain, wind, and pressure events with high accuracy, while the full system can generate global 3 km climate data at about 1/300th the cost of X-SHiELD, a high-resolution global atmospheric model that explicitly simulates storms and other small-scale weather. Putting HiROv2 and ACE together, we generated a full year of global 3 km data. Producing global high-resolution data with it costs roughly 300 times less than running X-SHiELD.

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