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DOI | 10.1007/s00382-018-4079-5 |
Linear and nonlinear regression prediction of surface wind components | |
Mao, Yiwen; Monahan, Adam | |
2018-11-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 51页码:3291-3309 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | This study compares the statistical predictability by linear regression of surface wind components using mid-tropospheric predictors with predictability by three nonlinear regression methods: neural networks, support vector machines and random forests. The results, obtained at 2109 land stations, show that more complex nonlinear regression methods cannot substantially outperform linear regression in cross-validated statistical prediction of surface wind components. As well, predictive anisotropy (variations in statistical predictive skill in different directions) are generally similar for both linear and nonlinear regression methods. However, there is a modest trend of systematic improvement in nonlinear predictability for surface wind components with fluctuations of relatively small magnitude or large kurtosis, which suggests weak nonlinear predictive signals may exist in this situation. Although nonlinear predictability tends to be higher for stations with low linear predictability and nonlinear predictive anisotropy tends to be weaker for stations with strong linear predictive anisotropy, these differences are not substantial in most cases. Overall, we find little justification for the use of complex nonlinear regression methods in statistical prediction of surface wind components as linear regression is much less computationally expensive and results in predictions of comparable skill. |
英文关键词 | Statistical prediction Linear regression nonlinear regression Predictability of surface winds |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000447366100007 |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35571 |
专题 | 气候变化 |
作者单位 | Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC, Canada |
推荐引用方式 GB/T 7714 | Mao, Yiwen,Monahan, Adam. Linear and nonlinear regression prediction of surface wind components[J]. CLIMATE DYNAMICS,2018,51:3291-3309. |
APA | Mao, Yiwen,&Monahan, Adam.(2018).Linear and nonlinear regression prediction of surface wind components.CLIMATE DYNAMICS,51,3291-3309. |
MLA | Mao, Yiwen,et al."Linear and nonlinear regression prediction of surface wind components".CLIMATE DYNAMICS 51(2018):3291-3309. |
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