arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2506.08049stat.MLcs.AIcs.LG

用于全球次季节至季节预测的物理信息感知遥相关Transformer

Physics-Informed Teleconnection-Aware Transformer for Global Subseasonal-to-Seasonal Forecasting

The Hong Kong University of Science and Technology (Guangzhou)(香港科技大学(广州));The Hong Kong University of Science and Technology(香港科技大学)

Tengfei Lyu, Weijia Zhang, Hao Liu

AI总结:

提出TelePiT深度学习架构,通过球谐嵌入、多尺度物理信息神经ODE和遥相关感知Transformer,显式建模物理过程与遥相关,显著提升全球S2S预测性能并超越现有基线。

摘要:

次季节至季节(S2S)预测提前数周至数月预测气候条件,是农业规划、能源管理和灾害准备的关键前沿。然而,由于大气系统的混沌动力学和跨多个尺度的复杂相互作用,它仍然是大气科学中最具挑战性的问题之一。当前方法往往未能显式建模在S2S时间尺度上至关重要的底层物理过程和遥相关。我们引入了TelePiT,一种新型深度学习架构,通过集成多尺度物理和遥相关感知来增强全球S2S预测。我们的方法包含三个关键组件:(1)球谐嵌入,将全球大气变量准确编码到球面几何上;(2)多尺度物理信息神经ODE,跨多个可学习频带显式捕获大气物理过程;(3)遥相关感知Transformer,通过将遥相关模式显式建模进自注意力来模拟关键的全球气候交互。大量实验表明,TelePiT在所有预测时间范围内均显著优于最先进的数据驱动基线和业务数值天气预报系统,标志着向可靠S2S预测迈出的重要一步。

英文摘要:

Subseasonal-to-seasonal (S2S) forecasting, which predicts climate conditions from several weeks to months in advance, represents a critical frontier for agricultural planning, energy management, and disaster preparedness. However, it remains one of the most challenging problems in atmospheric science, due to the chaotic dynamics of atmospheric systems and complex interactions across multiple scales. Current approaches often fail to explicitly model underlying physical processes and teleconnections that are crucial at S2S timescales. We introduce \textbf{TelePiT}, a novel deep learning architecture that enhances global S2S forecasting through integrated multi-scale physics and teleconnection awareness. Our approach consists of three key components: (1) Spherical Harmonic Embedding, which accurately encodes global atmospheric variables onto spherical geometry; (2) Multi-Scale Physics-Informed Neural ODE, which explicitly captures atmospheric physical processes across multiple learnable frequency bands; (3) Teleconnection-Aware Transformer, which models critical global climate interactions through explicitly modeling teleconnection patterns into the self-attention. Extensive experiments demonstrate that \textbf{TelePiT} significantly outperforms state-of-the-art data-driven baselines and operational numerical weather prediction systems across all forecast horizons, marking a significant advance toward reliable S2S forecasting.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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