Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0814.1 |
Temporal Filtering Enhances the Skewness of Sea Surface Winds | |
Monahan, Adam H. | |
2018-07-01 | |
发表期刊 | JOURNAL OF CLIMATE
![]() |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:14页码:5695-5706 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | The component of the sea surface wind in the along-mean wind direction is known to display pronounced skewness at many locations over the ocean. A recent study by Proistosescu et al. found that the skewness of daily 850-hPa air temperature measured by radiosondes is typically reduced by bandpass filtering. This behavior was also shown to be characteristic of correlated additive-multiplicative (CAM) noise, which has been proposed as a generic model for non-Gaussian variability in the atmosphere and ocean. The present study shows that if the cutoff frequency is not too low, the skewness of the along-mean wind component is enhanced by low-pass filtering, particularly in the equatorial band and in the midlatitude storm tracks. The filter time scale beyond which skewness is systematically reduced by filtering is of the daily to synoptic scale, except in a narrow equatorial band where it is of subseasonal to seasonal time scales. This behavior is reproduced in an idealized stochastic model of the near-surface winds, in which key parameters are the characteristic time scales of the nonlinear dynamics and of the noise. These results point toward more general approaches for assessing the relative importance of multiplicative noise or dynamical nonlinearities in producing non-Gaussian structure in atmospheric and oceanic fields. |
英文关键词 | Wind Filtering techniques Time series Nonlinear models Stochastic models |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000436100300001 |
WOS关键词 | PROBABILITY-DISTRIBUTION ; TROPICAL PACIFIC ; REANALYSIS ; SPEEDS |
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/20483 |
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 | Monahan, Adam H.. Temporal Filtering Enhances the Skewness of Sea Surface Winds[J]. JOURNAL OF CLIMATE,2018,31(14):5695-5706. |
APA | Monahan, Adam H..(2018).Temporal Filtering Enhances the Skewness of Sea Surface Winds.JOURNAL OF CLIMATE,31(14),5695-5706. |
MLA | Monahan, Adam H.."Temporal Filtering Enhances the Skewness of Sea Surface Winds".JOURNAL OF CLIMATE 31.14(2018):5695-5706. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Monahan, Adam H.]的文章 |
百度学术 |
百度学术中相似的文章 |
[Monahan, Adam H.]的文章 |
必应学术 |
必应学术中相似的文章 |
[Monahan, Adam H.]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论