Ai2 releases HiRO-ACEv2 climate emulation and 3 km downscaling models
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Ai2@allen_aiOfficialHiROv2 matches extreme weather event distributions within 3% in X-SHiELDAIAi2 says its HiROv2 model matches the distribution of extreme events in X-SHiELD to within 3% for 1-in-a-million rain, wind, and pressure predictions. The post also says it captures cyclone energy, realistic hurricanes, and strong downslope winds. A demo is available at ace.allen.ai.
- Ai2@allen_aiOfficialAi2 pairs ACE and HiROv2 for cheap, fine-scale global climate simulation
AIAi2 says ACE and HiROv2 together can generate years of global climate data at resolutions fine enough to capture storms, severe winds, and other local extremes. The company says global 3 km simulations cost about 300 times less than X-SHiELD, with larger savings for individual regions.
- Ai2@allen_aiOfficialHiRO-ACEv2 downscales winds and sea level pressure alongside rainfall
AIAi2 says HiRO-ACEv2 extends HiRO-ACE to downscale near-surface winds and sea level pressure in addition to rainfall. It works in two stages: the ACE AI climate emulator simulates climate at 100 km resolution, then the HiROv2 downscaling model sharpens the outputs to 3 km.
- Ai2@allen_aiOfficialAi2 releases HiRO-ACEv2 for 3 km global extreme weather simulation
AIAi2 says its HiRO-ACEv2 system simulates global extreme weather at 3 km resolution for about 1/300th the cost. The post says it matches X-SHiELD's statistics within 3%, including events as rare as 1 in a million data points. The model is available on Hugging Face.
- Hugging Face BlogOfficialAi2 releases HiRO-ACEv2 for 3 km extreme weather simulation at about 1/300th the cost of X-SHiELD
AIAi2 releases HiRO-ACEv2, an update to its HiRO-ACE climate emulator that generates global 3 km climate data at about 1/300th the cost of the X-SHiELD high-resolution atmospheric model. The new HiROv2 downscaling model predicts several high-resolution fields at once and matches X-SHiELD's high-resolution statistics to within 3%, even for events occurring once in a million data points. The models are available to download, with tutorial notebooks and a web demo comparing outputs with X-SHiELD.
- Ai2 (Allen Institute for AI)OfficialAi2 releases HiRO-ACEv2 to simulate extreme weather at 3 km resolution
AIAi2 introduces HiRO-ACEv2, an update to its HiRO-ACE climate emulator that generates global 3 km climate data at about 1/300th the cost of X-SHiELD. The HiROv2 downscaling model predicts several high-resolution fields at once and reproduces rare rain, wind, and pressure extremes, matching X-SHiELD's statistics within 3%. The system cannot yet produce data for other climates such as a warmer future, which Ai2 plans to address by training on new X-SHiELD datasets.
- Ai2 · new models on Hugging FaceOfficialAi2 releases HiRO-ACEv2 for 3 km climate downscaling
AIAi2 releases HiRO-ACEv2, a framework that generates 3 km precipitation, 10 m winds and sea level pressure fields over decades of simulated climate and arbitrary regions of the globe. It pairs the HiROv2 diffusion downscaling model, which turns 100 km inputs into 3 km fields, with an ACE2S-X-SHiELD checkpoint trained on nine years of X-SHiELD data. The model is licensed under Apache 2.0 for research and educational use.