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A New Tool for CME Arrival Time Prediction using Machine Learning Algorithms: CAT-PUMA
Liu, Jiajia; Ye, Yudong; Shen, Chenglong; Wang, Yuming; Erdelyi, Robert
作者部门空间科学部
发表期刊ASTROPHYSICAL JOURNAL
2018
卷号855期号:2页码:109
ISSN0004-637X
语种英语
关键词Solar-terrestrial Relations Sun: Coronal Mass Ejections (Cmes)
摘要Coronal mass ejections (CMEs) are arguably the most violent eruptions in the solar system. CMEs can cause severe disturbances in interplanetary space and can even affect human activities in many aspects, causing damage to infrastructure and loss of revenue. Fast and accurate prediction of CME arrival time is vital to minimize the disruption that CMEs may cause when interacting with geospace. In this paper, we propose a new approach for partial-/full halo CME Arrival Time Prediction Using Machine learning Algorithms (CAT-PUMA). Via detailed analysis of the CME features and solar-wind parameters, we build a prediction engine taking advantage of 182 previously observed geo-effective partial-/full halo CMEs and using algorithms of the Support Vector Machine. We demonstrate that CAT-PUMA is accurate and fast. In particular, predictions made after applying CAT-PUMA to a test set unknown to the engine show a mean absolute prediction error of similar to 5.9 hr within the CME arrival time, with 54% of the predictions having absolute errors less than 5.9 hr. Comparisons with other models reveal that CAT-PUMA has a more accurate prediction for 77% of the events investigated that can be carried out very quickly, i.e., within minutes of providing the necessary input parameters of a CME. A practical guide containing the CAT-PUMA engine and the source code of two examples are available in the Appendix, allowing the community to perform their own applications for prediction using CAT-PUMA.
收录类别SCI
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6239
专题空间科学部
通讯作者Liu, Jiajia; Ye, Yudong; Shen, Chenglong; Wang, Yuming; Erdelyi, Robert
推荐引用方式
GB/T 7714
Liu, Jiajia,Ye, Yudong,Shen, Chenglong,et al. A New Tool for CME Arrival Time Prediction using Machine Learning Algorithms: CAT-PUMA[J]. ASTROPHYSICAL JOURNAL,2018,855(2):109.
APA Liu, Jiajia,Ye, Yudong,Shen, Chenglong,Wang, Yuming,&Erdelyi, Robert.(2018).A New Tool for CME Arrival Time Prediction using Machine Learning Algorithms: CAT-PUMA.ASTROPHYSICAL JOURNAL,855(2),109.
MLA Liu, Jiajia,et al."A New Tool for CME Arrival Time Prediction using Machine Learning Algorithms: CAT-PUMA".ASTROPHYSICAL JOURNAL 855.2(2018):109.
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