Sub-Seasonal Climate Forecasting via Machine Learning: Challenges, Analysis, and Advances
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Sub-seasonal forecasting (SSF) focuses on predicting key variables such as temperature and precipitation on the 2-week to 2-month time scale. Skillful SSF would have immense societal value in such areas as agricultural productivity, water resource management, and emergency planning for extreme weather events. However, SSF is considered more challenging than either weather prediction or even seasonal prediction, and is still a largely understudied problem. In this paper, we carefully investigate 10 Machine Learning (ML) approaches to sub-seasonal temperature forecasting over the contiguous U.S. on the SSF dataset we collect, including a variety of climate variables from the atmosphere, ocean, and land. Because of the complicated atmosphere-land-ocean couplings and the limited amount of good quality observational data, SSF imposes a great challenge for ML despite the recent advances in various domains. Our results indicate that suitable ML models, e.g., XGBoost, to some extent, capture the predictability on sub-seasonal time scales and can outperform the climatological baselines, while Deep Learning (DL) models barely manage to match the best results with carefully designed architecture. Besides, our analysis and exploration provide insights on important aspects to improve the quality of sub-seasonal forecasts, e.g., feature representation and model architecture. The SSF dataset and code are released with this paper for use by the broader research community.
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Machine learning models have made significant strides in medium-range and seasonal forecasting, but their success in subseasonal forecasting has been less pronounced.
“Machine learning models have achieved made significant strides in medium-range weather forecasting and seasonal forecasting33, but their success in subseasonal forecasting has been less pronounced8,34,35.”
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- Authors
- He, S., Li, X., DelSole, T., Ravikumar, P., & Banerjee, A.
- Affiliations
- University of Minnesota (US)
- George Mason University (US)
- Carnegie Mellon University (US)
- University of Illinois Urbana-Champaign (US)
- Venue
- Proceedings of the AAAI Conference on Artificial Intelligence
- Published
- 2021-05-18
- Volume
- 35
- Issue
- 1
- Pages
- 169-177
- ISSN
- 2159-5399 (ISSN-L)
- 2374-3468
- OpenAlex
- W3174383901
- Cited by
- 51
- References
- 2
- Citations by year
- 2026: 10 · 2025: 10 · 2024: 12 · 2023: 9 · 2022: 6 · 2021: 3 · 2020: 1
- FWCI
- 22.92
- Type
- conference paper
- Language
- en
- Open access
- diamond
- doi.org
- Locations
- Proceedings of the AAAI Conference on Artificial Intelligence (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- AAAI Publications (The Association for the Advancement of Artificial Intelligence (AAAI)) (submittedVersion)
- arXiv (Cornell University)
- Funders
- National Science Foundation (1447566, 1934634, 1908104, 1447574, 1563950, 1422557, 1451986)
- University of Minnesota
- Topics
- Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
- Physical Sciences › Environmental Science › Environmental Engineering › Hydrological Forecasting Using AI
- Keywords
- temperature prediction, precipitation forecasting, XGBoost, deep learning, atmospheric predictability, feature representation, model architecture, contiguous United States
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