SRViT: Vision Transformers for Estimating Radar Reflectivity from Satellite Observations at Scale

• URL: http://arxiv.org/abs/2406.16955v2
• Date: Fri, 28 Jun 2024 19:51:25 GMT
• Title: SRViT: Vision Transformers for Estimating Radar Reflectivity from Satellite Observations at Scale
• Authors: Jason Stock, Kyle Hilburn, Imme Ebert-Uphoff, Charles Anderson,
• Abstract summary: We introduce a transformer-based neural network to generate high-resolution (3km) synthetic radar reflectivity fields at scale from geostationary satellite imagery. This work aims to enhance short-term convective-scale forecasts of high-impact weather events and aid in data assimilation for numerical weather prediction over the United States.
• Score: 0.7499722271664147
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We introduce a transformer-based neural network to generate high-resolution (3km) synthetic radar reflectivity fields at scale from geostationary satellite imagery. This work aims to enhance short-term convective-scale forecasts of high-impact weather events and aid in data assimilation for numerical weather prediction over the United States. Compared to convolutional approaches, which have limited receptive fields, our results show improved sharpness and higher accuracy across various composite reflectivity thresholds. Additional case studies over specific atmospheric phenomena support our quantitative findings, while a novel attribution method is introduced to guide domain experts in understanding model outputs.

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