Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-17-0481.1 |
Mean, Variability, and Trend of Southern Ocean Wind Stress: Role of Wind Fluctuations | |
Lin, Xia1,2; Zhai, Xiaoming2; Wang, Zhaomin3; Munday, David R.4 | |
2018-05-01 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2018 |
卷号 | 31期号:9页码:3557-3573 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; England |
英文摘要 | The Southern Ocean (SO) surface westerly wind stress plays a fundamental role in driving the Antarctic Circumpolar Current and the global meridional overturning circulation. Here, the authors investigate the contributions of atmospheric wind fluctuations to the mean, variability, and trend of SO wind stress over the last four decades using NCEP reanalysis and ERA-Interim products. Including wind variability at synoptic frequencies (2-8 days) and higher in the stress calculation is found to increase the strength of the mean SO wind stress by almost 40% in both reanalysis products. The southern annular mode index is found to be a good indicator for the strength of the mean wind and mean wind stress, but not as good an indicator for wind fluctuations, at least for the chosen study period. Large discrepancies between reanalysis products emerge regarding the contributions of wind fluctuations to the strengthening trend of SO wind stress. Between one-third and one-half of the stress trend in NCEP can be explained by the increase in the intensity of wind fluctuations, while the stress trend in ERA-Interim is due entirely to the increasing strength of the mean westerly wind. This trend discrepancy may have important climatic implications since the sensitivity of SO circulation to wind stress changes depends strongly on how these stress changes are brought about. Given the important role of wind fluctuations in shaping the SO wind stress, studies of the SO response to wind stress changes need to account for changes of wind fluctuations in the past and future. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429529900012 |
WOS关键词 | MERIDIONAL OVERTURNING CIRCULATION ; ANTARCTIC CIRCUMPOLAR CURRENT ; HEMISPHERE SURFACE CLIMATE ; ERA-INTERIM REANALYSIS ; NCEP-NCAR REANALYSIS ; GENERAL-CIRCULATION ; ANNULAR MODE ; TRANSIENT EDDIES ; CYCLONE ACTIVITY ; STORM TRACKS |
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/21087 |
专题 | 气候变化 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Polar Climate Syst & Global Change Lab, Nanjing, Jiangsu, Peoples R China; 2.Univ East Anglia, Sch Environm Sci, Ctr Ocean & Atmospher Sci, Norwich, Norfolk, England; 3.Hohai Univ, Coll Oceanog, Nanjing, Jiangsu, Peoples R China; 4.British Antarctic Survey, Cambridge, England |
推荐引用方式 GB/T 7714 | Lin, Xia,Zhai, Xiaoming,Wang, Zhaomin,et al. Mean, Variability, and Trend of Southern Ocean Wind Stress: Role of Wind Fluctuations[J]. JOURNAL OF CLIMATE,2018,31(9):3557-3573. |
APA | Lin, Xia,Zhai, Xiaoming,Wang, Zhaomin,&Munday, David R..(2018).Mean, Variability, and Trend of Southern Ocean Wind Stress: Role of Wind Fluctuations.JOURNAL OF CLIMATE,31(9),3557-3573. |
MLA | Lin, Xia,et al."Mean, Variability, and Trend of Southern Ocean Wind Stress: Role of Wind Fluctuations".JOURNAL OF CLIMATE 31.9(2018):3557-3573. |
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