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- W4367000394 abstract "Turbulent fluctuations of the atmospheric refraction index, so-called optical turbulence, can significantly distort propagating laser beams. Therefore, modeling the strength of these fluctuations ($C_n^2$) is highly relevant for the successful development and deployment of future free-space optical communication links. In this letter, we propose a physics-informed machine learning (ML) methodology, $Pi$-ML, based on dimensional analysis and gradient boosting to estimate $C_n^2$. Through a systematic feature importance analysis, we identify the normalized variance of potential temperature as the dominating feature for predicting turbulence strength. For statistical robustness, we train an ensemble of models which yields high performance on the out-of-sample data of $R^2=0.958pm0.001$." @default.
- W4367000394 created "2023-04-27" @default.
- W4367000394 creator A5035736706 @default.
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- W4367000394 date "2023-04-24" @default.
- W4367000394 modified "2023-10-01" @default.
- W4367000394 title "{Pi}-ML: A dimensional analysis-based machine learning parameterization of optical turbulence in the atmospheric surface layer" @default.
- W4367000394 doi "https://doi.org/10.48550/arxiv.2304.12177" @default.
- W4367000394 hasPublicationYear "2023" @default.
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