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U-Net Kalman Filter (UNetKF): An Example of Machine Learning-assisted Ensemble Data Assimilation
March 20, 2024, 4:41 a.m. | Feiyu Lu
cs.LG updates on arXiv.org arxiv.org
Abstract: Machine learning techniques have seen a tremendous rise in popularity in weather and climate sciences. Data assimilation (DA), which combines observations and numerical models, has great potential to incorporate machine learning and artificial intelligence (ML/AI) techniques. In this paper, we use U-Net, a type of convolutional neutral network (CNN), to predict the localized ensemble covariances for the Ensemble Kalman Filter (EnKF) algorithm. Using a 2-layer quasi-geostrophic model, U-Nets are trained using data from EnKF DA …
abstract artificial artificial intelligence arxiv climate cs.lg data ensemble example filter intelligence machine machine learning machine learning techniques numerical paper physics.ao-ph type weather
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