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Democracy of AI Numerical Weather Models: An Example of Global Forecasting with FourCastNetv2 Made by a University Research Lab Using GPU

Created by
  • Haebom

Author

Iman Khadir, Shane Stevenson, Henry Li, Kyle Krick, Abram Burrows, David Hall, Stan Posey, Samuel SP Shen

Outline

This paper demonstrates the potential of leveraging freely available AI models, such as NVIDIA's FourCastNetv2, and GPUs to democratize AI-based global weather forecasting models in university research groups. FourCastNetv2 is an advanced neural network weather forecasting model trained on the ECMWF ERA5 dataset, but its training specifications are not publicly available. This paper demonstrates forecast generation using the FourCastNetv2 API and training the FourCastNet model on NVIDIA hardware, and explores the capabilities and limitations of the NVIDIA A100 for resource-constrained university research groups. It addresses data management, training efficiency, and model validation, highlighting the benefits and challenges of utilizing limited high-performance computing resources. Together with the GitHub resources, this paper can serve as an initial guide for developing research and educational programs on AI weather forecasting.

Takeaways, Limitations

Takeaways:
Demonstrating the potential for democratizing AI-based weather forecasting models using GPUs and free AI models.
Providing practical guidance for developing AI weather forecasting research and training programs in university research groups.
Presenting a strategy for utilizing AI weather forecasting models in resource-constrained environments.
Presenting a practical example of utilizing the FourCastNetv2 API and training a FourCastNet model.
Limitations:
The training specifications of FourCastNetv2 are not disclosed, limiting reproducibility.
Training time and cost constraints due to limitations in high-performance computing resources.
Lack of generalizability review to research groups with limited GPU resources.
Lack of model performance evaluation for various meteorological phenomena.
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