ClimateLLM: Efficient Weather Forecasting via Frequency-Aware Large Language Models

• URL: http://arxiv.org/abs/2502.11059v1
• Date: Sun, 16 Feb 2025 09:57:50 GMT
• Title: ClimateLLM: Efficient Weather Forecasting via Frequency-Aware Large Language Models
• Authors: Shixuan Li, Wei Yang, Peiyu Zhang, Xiongye Xiao, Defu Cao, Yuehan Qin, Xiaole Zhang, Yue Zhao, Paul Bogdan,
• Abstract summary: We propose ClimateLLM, a foundation model for weather forecasting. It captures temporal dependencies via a cross-temporal and cross-spatial collaborative framework. It integrates frequency decomposition with Large Language Models to strengthen spatial and temporal modeling.
• Score: 13.740208247043258
• License:
• Abstract: Weather forecasting is crucial for public safety, disaster prevention and mitigation, agricultural production, and energy management, with global relevance. Although deep learning has significantly advanced weather prediction, current methods face critical limitations: (i) they often struggle to capture both dynamic temporal dependencies and short-term abrupt changes, making extreme weather modeling difficult; (ii) they incur high computational costs due to extensive training and resource requirements; (iii) they have limited adaptability to multi-scale frequencies, leading to challenges when separating global trends from local fluctuations. To address these issues, we propose ClimateLLM, a foundation model for weather forecasting. It captures spatiotemporal dependencies via a cross-temporal and cross-spatial collaborative modeling framework that integrates Fourier-based frequency decomposition with Large Language Models (LLMs) to strengthen spatial and temporal modeling. Our framework uses a Mixture-of-Experts (MoE) mechanism that adaptively processes different frequency components, enabling efficient handling of both global signals and localized extreme events. In addition, we introduce a cross-temporal and cross-spatial dynamic prompting mechanism, allowing LLMs to incorporate meteorological patterns across multiple scales effectively. Extensive experiments on real-world datasets show that ClimateLLM outperforms state-of-the-art approaches in accuracy and efficiency, as a scalable solution for global weather forecasting.

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