用物理约束的神经微分方程提升台风强度预报精度
Physics-Informed Residual Neural Ordinary Differential Equations for Enhanced Tropical Cyclone Intensity Forecasting
- 结合残差网络与神经微分方程,建模台风强度连续演化过程
- 24小时预报RMSE降低25.2%,决定系数R²提升19.5%
- 适合气象预报、深度学习与气候建模方向的研究者
准确预测热带气旋(TC)强度对减轻灾害风险至关重要,但其复杂动力学给传统方法带来挑战。本文提出一种物理信息引导的残差神经常微分方程(PIR-NODE)模型,用于精确预测台风强度演变。该模型利用深度学习强大的非线性拟合能力,通过残差连接增强模型深度与训练稳定性,并采用神经微分方程显式建模台风强度的连续时间演化。在SHIPS数据集上的实验表明,相比传统统计模型和基准神经网络,该模型在24小时强度预测上显著提升:均方根误差(RMSE)降低25.2%,决定系数(R²)提高19.5%。关键的是,残差结构有效保留了初始状态信息,模型展现出良好泛化能力。本文详细阐述了PIR-NODE架构、物理信息融合策略及全面实验验证,揭示了深度学习在复杂地球物理系统预测中的巨大潜力,为未来精细化台风预报研究奠定基础。
原文摘要 · Abstract (English)
Accurate tropical cyclone (TC) intensity prediction is crucial for mitigating storm hazards, yet its complex dynamics pose challenges to traditional methods. Here, we introduce a Physics-Informed Residual Neural Ordinary Differential Equation (PIR-NODE) model to precisely forecast TC intensity evolution. This model leverages the powerful non-linear fitting capabilities of deep learning, integrates residual connections to enhance model depth and training stability, and explicitly models the continuous temporal evolution of TC intensity using Neural ODEs. Experimental results in the SHIPS dataset demonstrate that the PIR-NODE model achieves a significant improvement in 24-hour intensity prediction accuracy compared to traditional statistical models and benchmark deep learning methods, with a 25. 2\% reduction in the root mean square error (RMSE) and a 19.5\% increase in R-square (R2) relative to a baseline of neural network. Crucially, the residual structure effectively preserves initial state information, and the model exhibits robust generalization capabilities. This study details the PIR-NODE model architecture, physics-informed integration strategies, and comprehensive experimental validation, revealing the substantial potential of deep learning techniques in predicting complex geophysical systems and laying the foundation for future refined TC forecasting research.
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