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Western North Pacific tropical cyclone track forecasts by a machine learning model

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Abstract

An ensemble machine learning model for tropical cyclone (TC) track forecasts over the Western North Pacific was developed and evaluated in this study. First, we investigated predictors including TC climatology and persistence factors which were extracted from TC best-track dataset and storm’s surrounding atmospheric conditions which were extracted from ERA-Interim reanalysis. Then, we built a Gradient Boosting Decision Tree (GBDT) nonlinear model for TC track forecasts, in which 30-year data was used. Finally, using tenfold cross-validation method, the GBDT model was compared with a frequently used technique: climatology and persistence (CLIPER) model. The experimental results show that the GBDT model performs well in three forecast times (24 h, 48 h, and 72 h) with relatively small forecast error of 138, 264, and 363.5 km, respectively. The model obtains excellent TC moving direction aspects. However, the model is still insufficient to produce aspects of storm acceleration and deceleration, with mean moving velocity sensitivities all less than 60%. Nevertheless, the model obtains much more robust and accurate TC tracks relative to CLIPER model, where the forecast skills are 17.5%, 26.3%, and 32.1% at three forecast times, respectively. The presented study demonstrates that the GBDT model could provide reliable evidence and guidance for operational TC track forecasts.

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Acknowledgements

The authors are grateful to three anonymous reviewers for their constructive comments, which helped improve the representation and quality of this work. This research is jointly supported by the National Key Research and Development Program of China (No. 2018YFC1508803), the National Natural Science Foundation of China (Grant Nos. 41671095, 41971199, 41875182), Shanghai Science and Technology Support Program (Grant No. 19DZ1201505), Guangzhou Science and Technology plan projects (No. 201904010162), Sun Yat-sen University “100 Top Talents Program” (No. 74110-18841203).

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Correspondence to Jun Wang.

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We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled ’Western North Pacific Tropical Cyclone Track Forecasts by a Machine Learning Model’.

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Tan, J., Chen, S. & Wang, J. Western North Pacific tropical cyclone track forecasts by a machine learning model. Stoch Environ Res Risk Assess 35, 1113–1126 (2021). https://doi.org/10.1007/s00477-020-01930-w

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  • DOI: https://doi.org/10.1007/s00477-020-01930-w

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