A machine learning model for skillful climate system prediction

• URL: http://arxiv.org/abs/2505.06269v1
• Date: Tue, 06 May 2025 03:06:14 GMT
• Title: A machine learning model for skillful climate system prediction
• Authors: Chenguang Zhou, Lei Chen, Xiaohui Zhong, Bo Lu, Hao Li, Libo Wu, Jie Wu, Jiahui Hu, Zesheng Dou, Pang-Chi Hsu, Xiaoye Zhang,
• Abstract summary: This paper introduces FengShun-CSM, an AI-based climate system model that provides 60-day global daily forecasts for 29 critical variables.<n>The model significantly outperforms the European Centre for Medium-Range Weather Forecasts (ECMWF) subseasonal-to-seasonal (S2S) model in predicting most variables.<n>Remarkably, FengShun-CSM exhibits substantial potential in predicting subseasonal extreme events.
• Score: 12.912679599908984
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Climate system models (CSMs), through integrating cross-sphere interactions among the atmosphere, ocean, land, and cryosphere, have emerged as pivotal tools for deciphering climate dynamics and improving forecasting capabilities. Recent breakthroughs in artificial intelligence (AI)-driven meteorological modeling have demonstrated remarkable success in single-sphere systems and partially spheres coupled systems. However, the development of a fully coupled AI-based climate system model encompassing atmosphere-ocean-land-sea ice interactions has remained an unresolved challenge. This paper introduces FengShun-CSM, an AI-based CSM model that provides 60-day global daily forecasts for 29 critical variables across atmospheric, oceanic, terrestrial, and cryospheric domains. The model significantly outperforms the European Centre for Medium-Range Weather Forecasts (ECMWF) subseasonal-to-seasonal (S2S) model in predicting most variables, particularly precipitation, land surface, and oceanic components. This enhanced capability is primarily attributed to its improved representation of intra-seasonal variability modes, most notably the Madden-Julian Oscillation (MJO). Remarkably, FengShun-CSM exhibits substantial potential in predicting subseasonal extreme events. Such breakthroughs will advance its applications in meteorological disaster mitigation, marine ecosystem conservation, and agricultural productivity enhancement. Furthermore, it validates the feasibility of developing AI-powered CSMs through machine learning technologies, establishing a transformative paradigm for next-generation Earth system modeling.

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