A compact daily time series of global auroral activity derived from NOAA SWPC's OVATION Prime aurora nowcast. Updated daily, growing incrementally. OVATION Prime is an empirical model that converts real-time solar-wind and geomagnetic conditions into the probability of seeing the aurora across a global grid of roughly 65,000 cells, with a lead… See the full description on the dataset page: https://huggingface.co/datasets/juliensimon/aurora-forecast.