<ul><li>Renewable resources can benefit from skillful subseasonal to seasonal (S2S) wind speed forecasts.</li><li>DiffScale is a diffusion model that enhances S2S wind speed predictions by downscaling and correcting forecast errors.</li><li>DiffScale can super-resolve spatial information for continuous downscaling factors and lead times, without auto-regression or sequence prediction.</li><li>Synthetic experiments showed that DiffScale significantly improves wind speed prediction quality, outperforming baselines up to week 3.</li></ul>

DiffScale: Continuous Downscaling and Bias Correction of Subseasonal Wind Speed Forecasts using Diffusion Models

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